Tag Archives: chain

China factory 1ton Hsz-a Series Manual Chain Pulley Block Wholesale with Good quality

Product Description

1Ton HSZ-A Series Manual Chain Pulley Block Wholesale
 

CB-B Series Chain Pulley Block is a portable lifting device easily operated by hand. It is suitable for using in factory, workshop, plant, agricultural production and in docks and storage for fixing machines, lifting cargo and loading and unloading goods. It is especially advantageous for lifting work in the power supply is not available. The chain pulley block can be attached to a trolley of any type as a travelling chain pulley block. It is suitable to monorail overhead conveying system, had travelling crane and jib crane.

Chain Pulley Block Features:

Chain Pulley Block Chain Hoist:
Capacity: From 1T to 3T
This innovative and patented hand chain hoist the CZPT forge 360 is designed for heavy industrial applications.
This 360 rotating hand chain CZPT allows hoist operations from various angles and helps the operator stay out of the danger zone.
Premium brake system ensures safe operation, low maintenance and is extremely quiet.
Sealed Roller Bearings

Easy to install:
Compact design and low headroom make the series simple to install even in confined working areas. No adjustments necessary.

Strength:
Equipped with hardened load chain for optimum strength, flexibility and long wear life.

Low maintenance:
Enclosed housing allows outdoor use.
The load brake requires no lubrications.

Quality features:
1. Wheel cover with CZPT slots guard against jamming and slipping of chain.
2. Forged swivel hooks and latches prevent twisting of chain and reduce unintentional unhooking of the unit or load.
3. Chain CZPT and stripper ensures proper fit of chain over pocket wheel.
4. Two-stage gear reduction with hardened gears and pinion.

Chain Pulley Block Parameters:

Model CB-B
Capacity(ton) 0.25 0.5 1 1.5 2 3 5 7.5 10
Standard lifting height(m) 2.5 2.5 2.5 2.5 2.5 3 3 3 3
Running Test Load(ton) 0.3125 0.625 1.25 1.875 2.5 3.75 6.25 9.375 12.5
Headroom H(mm) 280 345 376 442 470 548 688 765 765
Effort to required to lift max. load(N) 226 235 245 255 324 363 353 373 380
Load Chain Dia. (mm) Columns 1 1 1 1 1 1 2 3 4
Dia+Pitch 4× 12 5× 15 6× 18 7× 21 8× 24 10× 28 9× 27 9× 27 9× 27
Dimension
(mm)		 A 121 148 172 196 210 255 280 433 463
B 114 132 151 173 175 205 189 189 189
C 24 25 30 33 35 40 42 56 56
D 31 31.5 37.5 42.5 45 50 53 85 85
Net Weight(kg) 6.5 9.3 12.2 16.5 19.5 32 41.1 61.6 75.7
Packing Measurements
(l× w× h)(mm)		 23× 16× 15 30× 17× 18 32× 18× 19 37× 20× 24 37× 20× 24 43× 40× 30 47× 44× 35.5 62× 47× 39.5 53× 51× 46.5
Extra Weight per meter
of extra lift(kg)		 0.81 1 1.29 1.61 1.92 2.68 4.1 5.86 7.73

Chain Pulley Block Details:

Chain Pulley Block Pictures: 

Chain Pulley Block Package:

About US:

LIFTOR ENTERPRISES was founded in 2000 and is a leading manufacturer of lifting and material handling equipment with almost 20 years experience. We provide quality, safety and stable products to meet the highest industrial standards. We are ISO9001:2008 certified company, our products are GS,CE certified, serving all sphere of industry in the world.
 
Our brand CZPT is well sold in more than 50 countries worldwide and has earned an enviable reputation for high quality products. With our professional R&D team, we are CZPT to provide customization services with the most professional quality and never stop meeting the highest standard of safety.

LIFTOR will never stop being as an innovative manufacturer. We will continue to develop and extend our products range with high quality, safety standard and long life usage. 

Why choose us?

1. We are your one-stop service and solutions provider,certified by CE.

2. Exporting to Europe,USA,Australia,Mid East,Southeast Asia and Africa.

3. 100+ containers per month.Turnover more than US Dollar around40 millions in both 2019/2571.

4. Group company established in 2000 and be Globalsource member for more than 20 years.

5. Strict quality control and with long term quality inspection contract with SGS.

6. Products is underwritten by the China Property Insurance Company(PICC) as quality assurance for customer.

7. Passed 3rd party audit arranged by several top 500 company and be their long term contract supplier.

8. Pre-shipment quality inspection for customer by picture/video.

9. Meet Customized requirement on design and logo.

10. Small order acceptable.

 

 

The benefits of using pulleys

A pulley is a mechanical device that converts force into rotation. There are many advantages to using pulleys. Let's take a look at a few of them. This article will describe the advantages, types, applications, and power sources of pulleys. You can then choose the pulley that best suits your specific needs. If you're looking for a new tool to help you with a certain task, this article is for you.
pulley

Mechanical advantage

The mechanical advantage of a pulley can be defined as the ratio of applied force to the applied force. The mechanical advantage of a pulley can be calculated by considering several factors, including weight and friction. It can be calculated by the force applied per unit length of rope and the number of pulleys used. In a single-circuit system, the force required to lift a heavy object is equal to the user's body weight.
The mechanical advantage of a pulley can be realized by comparing it to a seesaw. Both uses of rope are suitable for lifting objects. A rope 4 times heavier than a kilo is 4 times as effective. Because the forces on both sides of the pulley are equal, a small force is enough to move a large weight a short distance. The same force can be applied to a large mass to lift it several meters.
After introducing the concept of mechanical advantage, learners will practice using the pulley system. In addition to testing the pulley system, they should also calculate its mechanical advantage. Using either the instructor-provided handout or the learner's workbook, students will determine how easily the pulley system functions. Once they have completed the test, they can discuss their results and how the system can be improved. These courses are best completed as part of a mini-unit or as a standalone main course.
The mechanical advantage of the pulley system is proportional to the number of rope loops. This circuit requires the same force as the dual circuit to lift heavy objects. A single lap requires only a third of the force to lift a double lap, while 3 laps require almost half the energy required for a single lap. The mechanical advantage of the pulley system becomes constant as the number of cycles increases.
The 3:1 Mechanical Advantage system feels like lifting a 300-pound load with 3 feet of rope. The three-foot-long rope moves the load 1 foot high. Understanding the mechanical advantages of pulleys is critical for rescuers when trying to create the perfect pulley system. Ideally, the pulley system will be anchored to a nearby rock, tree, pole or person - if the weight is not too heavy.
pulley

Types of pulleys

There are several types of pulleys. V-belt pulleys are the type commonly used in vehicles and electric motors. "V" pulleys require a "V" belt, and some even have multiple V grooves. "V" pulleys are often used in heavy duty applications for power transmission because they reduce the risk of power slippage.
Composite pulleys combine the properties of fixed and movable pulleys. Compound pulleys are able to change the direction of force while requiring relatively low force to move even the heaviest loads. Mechanical advantage is a measure of the effectiveness of a machine or equipment. It can be divided into 3 categories: force, distance and mechanics. Once you understand how each type works, you can design complex machines.
Fixed pulleys: These pulleys are the most basic type of pulleys. They use ropes and slotted wheels to move with the lifted object. Because they are so simple to set up, lifting heavy objects is a breeze. Although the moving object feels light, it is actually heavier than it actually is. These pulleys are used in construction cranes, utility elevators and many different industries.
Compound Pulley System: A pulley pulley is a combination of 2 fixed pulleys and 1 movable pulley. Compound pulley systems are effective for moving heavy objects because they have the largest force multipliers and are flexible enough to change the direction of the force as needed. Composite pulley systems are commonly used in rock climbing, theater curtains and sailing. If you're looking for a pulley system, you can start by evaluating the types of pulleys and their uses.
Construction Pulleys: These are the most basic types of pulleys and have wheel rails. These pulleys can be lifted to great heights and attached to chains or ropes. They allow workers to access equipment or materials from greater heights. They are usually mounted on wheels with axles and secured with ropes. They are essential tools for construction workers. There are many different types of pulleys out there.

energy source

Belts and pulleys are mechanical devices used to transmit energy and rotational motion. The belt is connected to the rotating part of the energy source, and the pulley is mounted on the other. One pulley transmits power to the other, while the other changes the direction of the force. Many devices use this combination, including automobiles, stationary generators, and winches. It is used in many home applications, from conveyors to treadmills. Pulleys are also used for curtains in theater halls.
Pulley systems are an essential part of modern industry and everyday life. Pulleys are used in elevators, construction sites and fitness equipment. They are also used in belt-driven generators as backup power. Despite their simple and seemingly humble beginnings, they have become a versatile tool. From lifting heavy objects to guiding wind turbines, pulley systems are widely used in our daily lives.
The main reason why pulleys are so popular is the mechanical advantage they offer. They can lift a lot of weight by applying very little force over longer distances. For example, a small motor can pull 10 meters of cable, while a large motor can pull 1 meter. Also, the work done is equal to the force times the distance traveled, so the energy delivered to the large motor is the same.
The power source for the pulley system can be cables, belts or ropes. The drive element in a pulley system is usually a rope or cable. A belt is a loop of flexible material that transmits motion from 1 pulley to another. The belt is attached to the shaft and a groove is cut in the pulley. The belt then transfers energy from 1 pulley to the other through the system.
pulley

application

A pulley is a mechanical device used to lift heavy objects. They reduce the amount of work required to lift heavy objects and are an excellent choice for many applications. There are several different applications for pulleys, including elevators, grinders, planters, ladder extensions, and mountaineering or rock climbing. Let's take a look at some of the most popular uses for pulleys in modern society. These include:-
A pulley is a mechanical device that changes force. To use, you wrap the rope around it and pull down to lift the object. While this device is very useful, a major limitation of using pulleys is that you still have to apply the same force to lift the object as you would without the pulleys. This is why people use pulleys to move large objects like furniture and cars.
In addition to lifting heavy objects, pulleys are used in elevators, flagpoles and wells. These systems allow people to move heavy objects without straining their backs. Many other examples of pulleys in the home include garage doors, flagpoles, and elevators. They also help raise and lower flagpoles, which can reach several stories high.
There are 2 basic types of pulleys: movable and fixed. Fixed pulleys are attached to a ceiling or other object using 2 ropes. Modern elevators and construction cranes use movable pulleys, as do some weight machines in gyms. Composite pulleys combine movable and fixed pulleys to minimize the force required to move heavy objects.
Another type of fixed pulley is the flagpole. A flagpole can support a country, organization, or anything else that needs to be lifted. A taller flagpole creates a prouder moment for those who support it. The operation of the rope and pulley mechanism is very simple. The user simply attaches the flag to the rope, pulls the pulley, and he or she can watch the flag rise and unfold.

China factory 1ton Hsz-a Series Manual Chain Pulley Block Wholesale with Good qualityChina factory 1ton Hsz-a Series Manual Chain Pulley Block Wholesale with Good quality

China supplier 1 Ton Electric Hoist Chain Pulley Block for Lifting Goods near me supplier

Product Description

1 Ton Electric Hoist Chain Pulley Block for Lifting Goods

 

 

Characteristics:

  1. 0.5~50 ton lifting capacity
  2. With upper hook (fixed) or with trolley
  3. Single/Double speed option
  4. Shell: aluminum alloy
  5. Chain: high quality G80
  6. Chain container: canvas / iron
  7. Gear & chain wheel: alloy steel + heat treatment
  8. Hooks: heat forging+heat treatment
  9. Chain diameter: 6.3~11.2mm (as per different capacities)
  10. Motor rotate speed:1440r/min(single speed),  2880/960 r/min(double speed),
  11. Standard chain length: 3m (can be customized)
  12. Power specification:200~690V,50/60HZ,3 Phase
  13. Safe voltage:24V/36V/48V
  14. Button switch:2/4/6/8 buttons option
  15. Insulation grade:F class
  16. Protection class: IP55
  17. Working group:M4
  18. Working temperature: -40ºC ~ +40ºC
  19. OEM acceptable
  20. Customized logo acceptable
  21. Package: plywood case
  22. Warranty: 2 years for mechanical parts, 1 year for electric parts

 

Single Speed  Technical Parameters
Model  SSDHL
0.5-01S 01-01S 1.5-01S 02-01S 02-02S 2.5-01S 03-01S 03-02S 03-03S 05-02S
Capacity (t) 0.5t 1t  1.5t 2t 2.5t 3t 5t
Lifting Speed (m/min) 7.2 6.6 8.8 6.6 3.3 5.4 5.4 4.4 2.2 2.7
Motor Power (Kw) 0.8  1.5  3.0  3.0  1.5  3.0  3.0  3.0  1.5  3.0 
Rotation Speed (r/min) 1440
Insulation Grade F
Power Supply 3P 220V ~ 690V
Control Voltage 24V/36V/48V
No. of Chain 1 1 1 1 2 1 1 2 3 2
Spec. of Load Chain  ø6.3 ø7.1 ø10.0 ø10.0 ø7.1 ø11.2 ø11.2 ø10.0 ø7.1 ø11.2
Net Weight (Kg) 47 61 108 115 73 115 122 131 85 151

 

 

Dual Speed  Technical Parameters
Model  SSDHL
0.5-01D 01-01D 1.5-01D 02-01D 02-02D 2.5-01D 03-01D 03-02D 03-03D 05-02D
Capacity (t) 0.5t 1t  1.5t 2t 2.5t 3t 5t
Lifting Speed (m/min) 7.2/2.4 6.9/2.3 9.0/3.0 6.9/2.3 3.3/1.1 5.4/1.8 5.41.8 4.5/1.5 2.4/0.8 2.7/0.9
Motor Power (Kw) 0.8/0.27 1.8/0.6 3.0/1.0 3.0/1.0 1.8/0.6 3.0/1.0 3.0/1.0 3.0/1.0 1.8/0.6 3.0/1.0
Rotation Speed (r/min) 2880/960
Insulation Grade F
Power Supply 3P 220V ~ 690V
Control Voltage 24V/36V/48V
No. of Chain 1 1 1 1 2 1 1 2 3 2
Spec. of Load Chain  ø6.3 ø7.1 ø10.0 ø10.0 ø7.1 ø11.2 ø11.2 ø10.0 ø7.1 ø11.2
Net Weight (Kg) 54 74 144 150 86 148 159 168 102 184

Company Profile

TXK was founded in 1997 and is a leading manufacturer of lifting and material handling equipments with almost 20 years experience. We provide quality, safe and stable products to meet the highest industrial standards. We are ISO9001:2008 certified company, our products are GS, CE certified, serving all spheres of industry in the world.

Our brand CZPT is well sold in more than 50 countries worldwide and has earned an enviable reputation for high quality products. With our professional R&D team, we are CZPT to provide customization services with the most professional quality and never stop meeting the highest standard of safety.

TXK will never stop being as an innovation manufacturer. We will continue to develop and extend our products range with high quality, safety standard and long life usage.

 

What Is a Pulley?

The pulley is a wheel mounted on a shaft or axle. Its purpose is to support the movement of a cable that is taut. This cable transfers power to a shaft. However, there are certain safety precautions that you should follow when using a pulley. Read on to learn more! Listed below are common uses and their main parts. Listed below are some of the benefits of using a pulley.
pulley

Common uses of a pulley

A pulley is a common mechanical device used to increase the force needed to lift a heavy object. Most commonly, these devices are used in construction equipment. These machines use high-10sion ropes to transfer heavy objects from 1 floor to another. Other common uses of a pulley include buckets and flagpoles. These devices are extremely useful in a wide range of applications. To learn more about the common uses of pulleys, keep reading.
A pulley is a wheel with grooves for holding rope. Its purpose is to change the direction and point at which a pulling force acts. It is usually used in sets to reduce the amount of force needed to lift a load, but the work involved is similar. Pulleys are also used in rock climbing devices. For many applications, a pulley is a vital part of construction.
The most common use of a pulley involves hoisting and lowering a flag. Other examples include clotheslines, bird feeders, and escalators. Pulleys are also commonly used on oil derricks. Many other common applications include hoisting and lowering garage doors. Pulley systems are also used in engines and cranes. For more information, check out our interactive pulley diagram!
Pulleys can also be used to lower total work required for a task. In many cases, a pulley will consist of 2 parts: the pulley hub and the shaft pulley. The hub clamps the shaft pulley, while the pulley itself is connected to the motor or other device. If you're looking for a pulley, it's important to learn how it works.
The most common uses for a pulley involve lifting heavy objects, and the mechanism used to lift them is known as a pulley. A pulley is an industrial device that uses 2 wheels to reduce the force needed to lift a weight. The pulley reduces this force by half by allowing the user to pull on the rope 4 times as far. The pulley also allows for a smaller lifting distance.

Main parts of a pulley

A pulley consists of the main element of a system. This is typically a cable, rope, belt, or chain. There are 2 basic types of pulleys - a Driver Pulley and a Follower Pulley. Pulleys are available in small and large sizes. The periphery part of the pulley is called the Face, and the protruding middle part is called the Crown. A pulley's face can be round, rectangular, or even "V" shaped.
The first pulley was created by the Greek mathematician Archimedes in the third century BCE. These simple machines are made of a rope, an axle, and a wheel. The pulley's end is attached to a person, object, or motor. These machines can be used in various tasks to lift heavy objects. The pulley is a great mechanical advantage for any lifter.
The ideal mechanical advantage of a pulley is defined by the number of rope segments that pull an object. The higher the number of loops on the rope, the higher the mechanical advantage. The greater the mechanical advantage, the less force is required to move the object. Likewise, the greater the distance the rope traverses, the higher the mechanical advantage of a pulley. There are several different types of pulley, depending on their combination of rope, wheel, and rope.
The basic components of a pulley are the face and hub, and the rope is threaded into the center of the pulley. The pulley is usually made of a rope and can be used to lift heavy weights. It can also be used to apply great force in any direction. Step pulleys have multiple faces, which are fixed in sequence. They can also increase the speed of the driven pulley.
A pulley is a simple machine consisting of a wheel, rope, or chain. These parts are crucial for making moving and lifting easier. Because they change the direction and magnitude of force, they can be a useful tool. Some pulleys even change direction. You can learn more about the pulley by downloading this resource today. The resources are designed to support the new 9-1 GCSEs in Design & Technology and Engineering.
pulley

Mechanical advantage

Pulleys have been used to move heavy objects for centuries. When 2 rope sections are used, the weight of a 100kg mass can be moved with only 500 newtons of force. Adding an extra pulley increases the mechanical advantage. If the pulley has 2 wheels, the distance between the rope sections and the wheel grooves is only half the distance, but the mechanical advantage still applies. Adding another pulley increases the mechanical advantage, but can be risky.
Mechanical advantage is the ratio of force used versus force applied. The calculations are made under the assumption that the ropes and weights do not elongate or lose energy due to friction. If the weights are very light, the mechanical advantage is greater than that in the real world. To calculate the mechanical advantage, the weight of the load to be lifted must be the same as the weight of the person using the pulley.
A single moveable pulley has a mechanical advantage of two. The weight passes around the pulley, and 1 end of the rope is attached to a fixed point. The pulling force is then applied to the other end of the rope. The distance the weight travels doubles, or halved, depending on the direction of the pulley. Adding a second pulley reduces the distance and the effort required to lift it.
There are several ways to calculate the mechanical advantage of a pulley system. Some methods are specific to certain types of systems, while others work for all systems. The T-Method is a good choice in many applications, as it calculates the units of tension for each rope segment. Once you have determined the input force, you need to determine the maximum force that will be applied to each component. A compound pulley, for example, will require 4 units of tension for each rope segment.
In simple terms, the effort is the amount of force needed to lift the load. This force is measured in newtons (N). A mechanical advantage is often presented without units. If the student does not have this unit, you may need to convert the units to newtons, since 1 kilogram is equal to 10 newtons. If you can't figure out the units of effort, you can use the KWL chart provided by the teacher.
pulley

Safety precautions

There are a few safety precautions you should take when using a pulley. First, always check the SWL (safe working load) before attaching anything to the pulley. This indicates the maximum weight and angle the pulley can safely handle. Second, make sure that your work area is free from people and debris. Third, wear a hard hat to protect your head from blows and falling objects.
Another important consideration is anchoring. Although the pulley reduces the weight of an object, it is not enough to eliminate the weight. This is especially true if you are hoisting a heavy object, such as a motorcycle or lawnmower. It is important to ensure that the anchoring point can support the entire weight of the load. It is also important to follow proper anchoring procedures when using a pulley to lift a motorcycle or lawnmower.
In addition to the safety latch, you should use a tag line to control the suspended load. Remember that a chain pulley block is necessary for vertical lifting. You should also wear personal protective equipment (PPE) while using a pulley to avoid injuries. If your workplace does not have an PPE policy, you should consider implementing a similar policy. These safety guidelines are a good start.
If you are using a pulley to lift heavy objects, make sure to wear gloves. Those who are not familiar with rope-pulling will have an easier time demonstrating how it works. If you are using a rope-pulley system in a classroom, be sure to follow lab safety guidelines. Wear cloth gloves, clear the area, and do not jerk the rope. In addition, never allow yourself to be pulled into the rope by an unfamiliar person.
Another important safety precaution when using a pulley is to ensure that the anchor point for your system is adequate to support the weight of the object being lifted. Check with the manufacturer of the pulley to find out what its weight limit is, as some types of pulleys are designed to lift much heavier weights than others. It is important to follow all manufacturer's instructions when using a pulley.

China supplier 1 Ton Electric Hoist Chain Pulley Block for Lifting Goods near me supplier China supplier 1 Ton Electric Hoist Chain Pulley Block for Lifting Goods near me supplier

China high quality Liftor/OEM Brand 5 Ton Manual Chain Pulley Block with Hot selling

Product Description

LIFTOR/OEM brand 5 ton manual chain pulley block
 

CB-B Series Chain Pulley Block is a portable lifting device easily operated by hand. It is suitable for using in factory, workshop, plant, agricultural production and in docks and storage for fixing machines, lifting cargo and loading and unloading goods. It is especially advantageous for lifting work in the power supply is not available. The chain pulley block can be attached to a trolley of any type as a travelling chain pulley block. It is suitable to monorail overhead conveying system, had travelling crane and jib crane.

Chain Pulley Block Features:

Chain Pulley Block Chain Hoist:
Capacity: From 1T to 3T
This innovative and patented hand chain hoist the CZPT forge 360 is designed for heavy industrial applications.
This 360 rotating hand chain CZPT allows hoist operations from various angles and helps the operator stay out of the danger zone.
Premium brake system ensures safe operation, low maintenance and is extremely quiet.
Sealed Roller Bearings

Easy to install:
Compact design and low headroom make the series simple to install even in confined working areas. No adjustments necessary.

Strength:
Equipped with hardened load chain for optimum strength, flexibility and long wear life.

Low maintenance:
Enclosed housing allows outdoor use.
The load brake requires no lubrications.

Quality features:
1. Wheel cover with CZPT slots guard against jamming and slipping of chain.
2. Forged swivel hooks and latches prevent twisting of chain and reduce unintentional unhooking of the unit or load.
3. Chain CZPT and stripper ensures proper fit of chain over pocket wheel.
4. Two-stage gear reduction with hardened gears and pinion.

Chain Pulley Block Parameters:

Model CB-B
Capacity(ton) 0.25 0.5 1 1.5 2 3 5 7.5 10
Standard lifting height(m) 2.5 2.5 2.5 2.5 2.5 3 3 3 3
Running Test Load(ton) 0.3125 0.625 1.25 1.875 2.5 3.75 6.25 9.375 12.5
Headroom H(mm) 280 345 376 442 470 548 688 765 765
Effort to required to lift max. load(N) 226 235 245 255 324 363 353 373 380
Load Chain Dia. (mm) Columns 1 1 1 1 1 1 2 3 4
Dia+Pitch 4× 12 5× 15 6× 18 7× 21 8× 24 10× 28 9× 27 9× 27 9× 27
Dimension
(mm)		 A 121 148 172 196 210 255 280 433 463
B 114 132 151 173 175 205 189 189 189
C 24 25 30 33 35 40 42 56 56
D 31 31.5 37.5 42.5 45 50 53 85 85
Net Weight(kg) 6.5 9.3 12.2 16.5 19.5 32 41.1 61.6 75.7
Packing Measurements
(l× w× h)(mm)		 23× 16× 15 30× 17× 18 32× 18× 19 37× 20× 24 37× 20× 24 43× 40× 30 47× 44× 35.5 62× 47× 39.5 53× 51× 46.5
Extra Weight per meter
of extra lift(kg)		 0.81 1 1.29 1.61 1.92 2.68 4.1 5.86 7.73

Chain Pulley Block Details:

Chain Pulley Block Pictures: 

Chain Pulley Block Package:

About US:

LIFTOR ENTERPRISES was founded in 2000 and is a leading manufacturer of lifting and material handling equipment with almost 20 years experience. We provide quality, safety and stable products to meet the highest industrial standards. We are ISO9001:2008 certified company, our products are GS,CE certified, serving all sphere of industry in the world.
 
Our brand CZPT is well sold in more than 50 countries worldwide and has earned an enviable reputation for high quality products. With our professional R&D team, we are CZPT to provide customization services with the most professional quality and never stop meeting the highest standard of safety.

LIFTOR will never stop being as an innovative manufacturer. We will continue to develop and extend our products range with high quality, safety standard and long life usage. 

Why choose us?

1. We are your one-stop service and solutions provider,certified by CE.

2. Exporting to Europe,USA,Australia,Mid East,Southeast Asia and Africa.

3. 100+ containers per month.Turnover more than US Dollar around40 millions in both 2019/2571.

4. Group company established in 2000 and be Globalsource member for more than 20 years.

5. Strict quality control and with long term quality inspection contract with SGS.

6. Products is underwritten by the China Property Insurance Company(PICC) as quality assurance for customer.

7. Passed 3rd party audit arranged by several top 500 company and be their long term contract supplier.

8. Pre-shipment quality inspection for customer by picture/video.

9. Meet Customized requirement on design and logo.

10. Small order acceptable.

 

 

What is a pulley?

Pulleys are shafts or wheels on a shaft that support the movement and change of direction of a taut cable. The pulley also transfers power from the shaft to the cable. A simple pulley is used to raise the school flag. Read on to learn about the basic types of pulleys. We also covered the use of pulleys in everyday life. Read on to learn more about this important mechanical part.
pulley

composite pulley

A composite pulley is a mechanical system where 2 or more pulleys and ropes are connected together. It reduces the force required to lift the load because the force is divided by the distance of each pulley. Distance is equal to the mass of the object. Composite pulleys are a common mechanical system on sailboats. Composite pulleys can be used to lift heavy equipment such as sails.
The compound pulley unit consists of 2 pulleys, 1 fixed and the other movable. The fixed pulley is fixed overhead, while the movable pulley is connected to the load by a chain. The lift applies force to the other end of the rope. Anchor points are attached to fixed joists, ceiling joists or sturdy branches. The chain should be long enough to support the load during lifting.
Composite pulleys can be made from a variety of materials. Some are fixed and remain fixed. Others are detachable. The composite pulley combines the advantages of both types, making it a versatile tool. In the table below, these 3 types of pulleys are compared. It's easy to see which 1 is best for your needs. The right choice depends on your specific needs and budget.
The compound pulley system consists of 2 fixed pulleys and 1 movable pulley. The compound pulley system multiplies the force by a factor of 2. The compound pulley system is particularly suitable for heavy loads and is ideal for construction sites. Workers apply less than half the load force on the composite pulley, significantly reducing the force required. This is a major benefit for many people.

Fixed pulley

Fixed pulleys are fixed gears of fixed length that are mounted on solid objects. There are many different types of pulley systems. Some cooperate with each other, but not "fixed".
Fixed pulleys can be used for a variety of purposes. One application is to lift small objects. They have a one-to-1 mechanical advantage. Often, a single pulley can lift small loads. The force required to lift a single fixed pulley remains the same. They are usually used to lift lighter objects. They can even be attached to buckets used to draw water from wells.
While single fixed pulleys have desirable mechanical advantages, they are not suitable for force multipliers. Because their mechanical advantage diminishes over time, they are not effective force multipliers. They are used to redirect work so that it can be applied in the most convenient direction. This mechanical advantage is the main advantage of fixed pulleys and the most common way of moving objects. They have several benefits, including the ability to increase the speed of moving objects.
Another application for fixed pulleys is lifting supplies. A scaffold can weigh more than 1 and can be directly hoisted. In order to facilitate the transportation of materials, fixed pulleys are usually installed on the top of the scaffolding on construction sites. Then thread the rope through the edge of the groove that holds the pulley. The fixed pulley exerts the same force on the pull side as on the push side. The same is true for moving objects with fixed pulleys.
pulley

moving pulley

A movable pulley is a device whose part is fixed to another object, usually a rod or beam. The movable part moves with the load, making the load feel lighter. This is a useful tool for those who need to carry heavy items such as large bags. The advantages of moving pulleys are many. Here are some of them. Read on to learn more about them.
One of the most common uses of movable pulley systems is climbing high objects. Climbers act as pulley loads and pull ropes to lift objects. Eventually, when the traction stops, the climber descends. However, it is still a useful tool in other situations. The movable pulley system can help you climb the tallest objects or lift them to level surfaces.
Another example of movable pulleys is in industry. Depending on the load, movable pulleys make handling and moving loads easier. You can use them in a variety of applications in manufacturing and industry, including cleaning. For example, the American flag is raised and lowered every day. Removable pulleys are a handy tool when buildings need cleaning.
If you're not sure whether a task requires a pulley, a zipline might be a good option. Connect the 2 ends of the rope and the pulley will move along the rope, then attach the rope to the metal cable. The load is the person holding the pulley, and the force comes from the attachment on the other end of the rope. There are 2 types of live pulleys: simple pulleys with just 1 wheel and live pulleys with many ropes attached.

School flag raised with simple pulleys

How is the school flag raised? It is pulled up by a rope attached to a pulley at the top of the pole. When the rope is pulled, the pulley turns, raising the flag. A pulley is a simple mechanism that helps people move heavier objects with ease. The rope must be securely attached to the pulley to keep the flag stable.
A simple pulley is a spinning wheel with grooves on 1 side and ropes on the other. The rope can be any length and the wheels can be any size. The rope has to go through the groove and the load is attached to the other end of the rope. Simple pulleys are pulleys with fixed shafts. An example is the wheel on a school flagpole.
A simple pulley system consists of a primary pole, a secondary pole and an outer member. The primary flagpole is connected to the track by a detour, while the secondary flagpole is connected to the track by a pipe. There is a groove on 1 side of the track, which passes through the inner cavity of the flagpole. An open track at the upper end of the track connects the 2 parts of the pulley.
A simple pulley can be used for many purposes. This is a useful machine that can be used to raise the flag. Among other things, it can be used in clothing lines, bird feeders, and even roofers. And, of course, you can use the pulley to raise the flag. Its versatility makes it an essential part of school decor.
pulley

cast iron pulley

If you are looking for pulleys for your machine, you may come across cast iron pulleys. They are usually cheap and available in a variety of sizes. The rim is held in place by a mesh attached to a central boss. The arms and spokes can be straight or curved, but most are oval. There are many uses for this type of pulley.
You might wonder why the arms of cast iron pulleys are so curved. Bent arms tend to yield rather than break. Cast iron pulleys are usually round with a slight bump on the rim, which helps keep the belt centered on the rim as it moves. On a 300mm diameter pulley, the bumps may be as small as 9mm.

China high quality Liftor/OEM Brand 5 Ton Manual Chain Pulley Block with Hot sellingChina high quality Liftor/OEM Brand 5 Ton Manual Chain Pulley Block with Hot selling

China Best Sales CZPT Offer Chain Pulley Block Made in China with Ce with Best Sales

Product Description

Txk Offer Chain Pulley Block Made in China

 

500kgs Electric Chain Hoists Specifications:

Model SSDHL
0.5-01S
Capacity 500kg
Lifting Speed(m/min) 7.2
Motor Power(kw) 0.8
Rotation Speed(r/min) 1440
Insulation Grade F
Power Supply 3P 220V-690V
Control Voltage 24V/36V/48V
No. of Chain 1
Spec. of Load Chain Φ6.3
New Weight(kg) 47

Details of Electric Chain Hoists:
1. Electric motor partial outer cover
They are made of high strength aluminum system through compression casting formation.
Advatages: Solid and light
Fast release heat
Continuous use
Enclosed structure
Can be used in the chemical plants, electroplating factories, and other places.
2. Side kind braking
This masterly structure ensure the hoist absolutly safety when the power off. And ensures it is safe when has excess load. Also it combine to the motor braking as the double brake system to strengthen security and durability.
3. Gear
The gear made of alloy steel and through the heat treatment
4. Antiphase protector
Advatages: When power-supply wiring mistake, the control circuit is unable to move.
5. Hooks
They are made by hot forging and heat treatment.
6. Chain
It is made of FEC80 ultra strong heat treatment alloy steel.
Advatages: It is safely approximately when used in the rain water, the sea water, under the chemical and other bad conditions.
7. ISO: M5 /FEM: 2M
8. Insulation grade: F
9. Protection class (hosit and push button): IP54
10. Powder supply: 3 phase, 200-600V, 50Hz
11. Noise (single/ double speed): 81dB.

TXK was founded in 1997 with 1.5 million USD registered fund in the very beginning and grow up as a leading manufacturer of electric chain hoist, manual chain hoist, electric wire rope hoist and various lifting and material handling equipments with more than 15 years experience and hard work.
 
Our factory cover an area of 66000 square meters, the biggest workshop in the electric hoist industry in China.
 
We provide quality, safe and stable products to meet the highest industrial standards. We are ISO9001: 2008 and TUV certified manufacturer, our products are CE, GS, SGS certified, serving all spheres of industry in the world.

Our products are widely used in industry and manufacturing industry and other special purpose, such as mold, wind power, logistics, railway, shipbuilding, bridge construction, factory assembly line, mechanical maintenance platform etc.
 
The company establishes a global marketing network with exportation to Germany, Norway, Poland, United States, Canada, Mexico, Peru, Brazil, Argentina, Egypt, Saudi Arabia, South Africa, India, Indonesia, Malaysia and total more than 50 countries and regions. 

FAQ
Q: What is MOQ?
A: MOQ can be 1 set
 
Q: How about your payment terms?
A: We accept T/T and L/C at sight
 
Q: What is the sample policy?
A: We can send you 1pcs sample for your test, but you need to pay the fees
 
Q: What is your after sales service?
A: We have engineers to fix any problem about CZPT Hoists sold overseas.
 
Q: What about warranty?
A: We supply 1 year warranty for electric part and 2 years for mechanical part.
 
Q: Do you support OEM service?
A: Yes
 

Types of pulleys and their advantages and disadvantages

There are several types of pulleys. Learn the basic equations of the pulley system. Then learn about the different uses for pulleys. The disadvantages of using pulleys will be covered. Knowing these, you can buy the pulley that suits your needs. Here are some of the best pulley types and their pros and cons.
pulley

Basic equations of pulley systems

A pulley system is a mechanism that allows 2 blocks of a certain mass to be connected by a taut rope. The acceleration of each block is the same in magnitude and direction. The external force acting on each block is the weight of the block (10g) and the tension in the string. The tension between the 2 blocks is the total tension and the force acting on the pulley is the weight of the 2 blocks.
This simple mechanism uses 2 simple equations to explain how the system works. First, the mass of the weight on both sides of the pulley must be the same. When the weight is forced to move, the rope tightens and the second pulley descends. The weight is also attached to the second pulley and must be the same distance as the first pulley. This will result in a speed ratio of 2 times the distance covered by the first pulley.
Second, we have to calculate the force required to lift the object. The lower mass is supported by a wire configuration passing through all pulleys, while the uppermost pulley is used to apply the force. The lower block is used to support the weight. The applied force needs to travel a distance nx to move the weight. This distance, called MA, can be written as:
Once we have gathered the necessary information, we can apply the calculations to the pulley system. We can also use the Mechanical Advantage Calculator to calculate the force on the anchor. To do this, we must apply a force to the load as well as to the pulley itself. Using this equation, we can calculate the force required by the load to lift the load.
pulley

Types of pulleys

There are 3 basic types of pulleys: movable, fixed and compound. Both types of pulleys translate the force applied to them. The ideal mechanical advantage of pulleys is two. This is because a single movable pulley only doubles the force, whereas a compound pulley doubles or triples the force. This type of pulley is often used with other types of pulleys.
Movable pulls move with the weight of the load, and the force pulling them increases on the lift side. They are often found in utility elevators and construction cranes. These systems are very simple, inexpensive and quiet to use. The force required to lift the object depends on the mechanical advantage of the system. The 2 most common types of pulleys are listed below. Let's take a closer look at each one.
V-shaped pulleys are used in vehicles and electric motors. These pulleys require a "V" belt to function properly. Some have multiple "V" grooves to avoid slipping. They are used in heavy duty applications to reduce the risk of power slip. These pulleys also have more than 1 "V" groove. V-belt pulleys are commonly used in vehicles and electric motors.
Composite pulleys are made from more than 1 type of cable or rope wrapped around the wheel. They can be fixed or hinged and are usually made of stainless steel or bronze. Composite pulleys have multiple layers and can be a single unit or many different components. There are 3 main types of pulleys: fixed pulleys and composite pulleys. These are the most common types. Almost every type of pulley is used for some type of application.
Fixed pulleys have 1 advantage over movable pulleys: they change direction as the weight of the load increases. They are typically used in heavy construction equipment. Gun tackles, patio tackles, and stationary tackles are examples of equipment that use a pulley mechanism. These devices are very common and can be found on most modern construction sites. They provide great convenience for lifting large loads.

application

What are the applications of pulleys? Simply put, a pulley is a mechanical device that transforms a difficult task into an easier one. It consists of ropes and pulleys. It is usually used to lift objects. Usually, people wrap a rope around a pulley and pull up to lift the object. One disadvantage of using pulleys is that they require the same force as lifting the object directly.
One of the most popular applications of pulleys is lifting heavy objects. They help people pull up heavy objects and blocks. The system can also be used in seeders, lifts, grinders, etc. Other applications include raising flags, loading cargo, pulling curtains and rock or mountain climbing. Students can learn about the various uses of pulleys and the physics behind them.
Pulleys can be made of many different materials, depending on the application. Some are movable, which means they move with the object they are used to lift. This pulley system can be made of nylon, wire rope or fiber material. The best part about these systems is that they are easy to install and maintain. For a better grasp, use the guide or video tutorial to learn more about the pulley system and how it works.
Tapered pulleys are common in paper mills. They are high-quality pulleys that transmit power to connected parts. They can be dynamic or static and have different balances. Because pulley systems are highly customized, most industrial applications require systems designed specifically for specific applications. In this way, the system is safe, simple and inexpensive. The benefits of this design are endless.
The most common use of pulleys is for motor drives. They are used to minimize noise by applying force to the shaft to reduce the workload. They are also less expensive than gears and do not require lubrication. Furthermore, they can change the direction of the applied force. They are also less expensive than gears and are often used with other components. A screw is a cylindrical member with helical ribs used to connect something.
pulley

shortcoming

Although the pulley system makes it easier to move heavy objects, it still has some drawbacks. When using a pulley system, you must remember that the force required to lift the weight increases with the number of cycles. In addition, the distance between the puller and the heavy object increases, which may lead to accidents. Also, moving heavy objects can be tricky if the rope slips. Pulley systems are not very expensive and can be easily assembled. However, it does require a lot of space.
First, it is not efficient. Besides being inefficient, pulleys produce different forces at different speeds. Fixed pulleys use more force than the load, while movable pulleys move with the load. A movable pulley requires less force than a fixed pulley, but the combined system travels a long distance. Therefore, this method is not as efficient as the fixed method.
Pulleys are not only used in industrial processes. You can see them in various places in your daily life. For example, large construction cranes use pulleys to lift heavy loads. Even flagpoles, blinds, clotheslines, ziplines, motors and climbing equipment use pulleys. Still, despite their advantages, the disadvantages are not too serious.
Another disadvantage of the pulley is its wear and tear. While a pulley's housing is theoretically infinite, its bearings and locking components typically wear out over time. To overcome this problem, a new bearing and locking assembly can be installed. No need to replace the housing and shaft, the entire assembly can be re-bonded and painted to replicate the original look. Alternatively, the pulley can be replaced with a new housing and shaft.
Using pulleys can also reduce the advantage of pulleys. On the other hand, interception and tackle is a system in which 2 pulleys are connected to each other using ropes. Unlike pulleys, pulley pulley systems can be adjusted in the direction of travel and can move heavy loads up to 4 times their force when used in hydraulic lifts.

China Best Sales CZPT Offer Chain Pulley Block Made in China with Ce with Best SalesChina Best Sales CZPT Offer Chain Pulley Block Made in China with Ce with Best Sales

China Hot selling China Supplyer Chain Pulley Block wholesaler

Product Description

                              China Supplyer Chain Pulley Block

The introduction of safety and reliable hoist new things for sell

HS-VN type of chain block is a kind of widely used and portable manual operatioon hoisting machine. It

Can be used in machine installation, products lifting and loading, unloading in industry, agriculture,

Contruction and mineral production. It is suitable to used in the open air and no electric power works. HS-

VN manual hoist can be used with all kinds of hand trolley and used as hand lifting transport carriage.

Characters: Five product feature high durability and good appearance.

1. The product is safe and reliable in operation with minimum maintenance.

2. High effciency in mechanism, labor saving.

3. Light in weight and carry it easily.

4. Attractive appearance, small in size

5. High durabily

6. Encloser: Made of high-classed steel, more firmly and dexterous

7. We have tested 4 times before packed, and we have specilized exports for your aftersale problems.

parameters of China Supplyer Chain Pulley Block

Mechanical advantages of pulleys

A pulley is a mechanical device used to transmit motion. The device has a variety of uses, including lifting heavy objects. In this article, we will discuss the mechanical advantages, types, common uses and safety considerations of pulleys. We'll also discuss how to identify pulleys and their components, and what to look out for when using pulleys. Read on to learn more about pulleys.
pulley

Mechanical advantages of pulleys

The mechanical advantage of pulleys is that they change the direction of force from 1 direction to another. In this way, the person lifting the heavy object can change its position with minimal effort. The pulleys are also easy to install and require no lubrication after installation. They are also relatively cheap. Combinations of pulleys and cables can be used to change the direction of the load.
The mechanical advantage of a pulley system increases with the number of ropes used in the system. The more cycles a system has, the more efficient it is. If the system had only 1 rope, the force required to pull the weight would be equal. By adding a second rope, the effort required to pull the weight is reduced. This increase in efficiency is known as the mechanical advantage of the pulley.
Pulleys have many uses. For example, ziplines are 1 application. This is a good example of pulleys in use today. Pulley systems can be complex and require a lot of space. Using ziplines as an example, advanced students can calculate the mechanical advantage of multiple pulleys by dividing the work done by each pulley by the remainder or fraction. Regents at the University of Colorado created a zipline with K-12 input.
Another use for pulleys is weight lifting. This technique is very effective when using multiple strands of rope. A single rope going from 1 pulley to the other with just 2 hands is not enough to lift heavy objects. Using a pulley system will greatly increase the force you receive. This power is multiplied over a larger area. So your lifting force will be much greater than the force exerted by a single rope.
The pulley is a great invention with many uses. For example, when lifting heavy objects, pulleys are a great way to get the job done, and it's easier to do than 1 person. The pulley is fixed on a hinge and rotates on a shaft or shaft. Then pull the rope down to lift the object. A pulley assembly will make the task easier. In addition, it will also allow power to be transferred from 1 rotary shaft to another.
pulley

Types of pulleys

If you are an engineer, you must have come across different types of pulleys. Some pulleys come in multiple types, but a typical pulley has only 1 type. These types of pulleys are used in various industrial processes. Here are some common types of pulleys that engineers encounter on the job. In addition to the above, there are many more. If you haven't seen them in practice, you can check out a list of the different types below.
Fixed pulleys: Fixed pulleys have a roller attached to a fixed point. The force required to pull the load through the fixed pulley is the same as the force required to lift the object. Movable pulleys allow you to change the direction of the force, for example, by moving it laterally. Likewise, movable pulleys can be used to move heavy objects up and down. Commonly used in multi-purpose elevators, cranes and weight lifters.
Composite pulleys combine fixed and movable pulleys. This combination adds to the mechanical advantage of both systems. It can also change the direction of the force, making it easier to handle large loads. This article discusses the different types of pulleys used for lifting and moving. Braided pulleys are an example of these pulleys. They combine the advantages of both types.
A simple pulley consists of 1 or more wheels, which allow it to reverse the direction of the force used to lift the load. On the other hand, dual-wheel pulleys can help lift twice the weight. By combining multiple materials into 1 pulley, a higher ME will be required. Regardless of the type of pulley, understanding the principles behind it is critical.
Pulleys are an important part of construction and mechanical engineering, and their use dates back to Archimedes. They are a common feature of oil derricks and escalators. The main use of pulleys is to move heavy objects such as boats. In addition to this, they are used in other applications such as extending ladders and lifting heavy objects. The pulley also controls the aircraft rudder, which is important in many different applications.

Commonly used

Common uses for pulleys are varied. Pulley systems are found throughout most areas of the house, from adjustable clotheslines to motor pulleys in different machines. Commercially, 1 of the most common uses is for cranes. Cranes are equipped with pulleys to lift heavy objects. It is also common to use pulley systems in tall buildings, which allow tall buildings to move with relative ease.
Pulleys are commonly used in interception and zipline systems, where a continuous rope around the pulley transmits force. Depending on the application, the rope is either light or strong. Pulleys are formed by wrapping a rope around a set of wheels. The rope pulls the object in the direction of the applied force. Some elevators use this system. Pull a cable on 1 end and attach a counterweight on the other end.
Another common use for pulleys is to move heavy objects. Pulleys mounted on walls, ceilings or other objects can lift heavy objects like heavy toolboxes or 2x4 planks. The device can also be used to transfer power from 1 rotating shaft to another. When used to lift heavy objects, pulleys can be used to help you achieve your goals of a good workout.
Pulley systems have a variety of uses, from the most basic to the most advanced. Its popularity is indisputable and it is used in different industries. A good example is timing belts. These pulleys transmit power to other components in the same direction. They can also be static or dynamic depending on the needs of the machine. In most cases, the pulley system is custom made for the job.
Pulley systems can be simple or complex, but all 3 systems transfer energy efficiently. In most cases, the mechanical advantage of a single pulley is 1 and the mechanical advantage of a single active pulley is 2. On the other hand, a single live pulley only doubles the force. This means you can trade effort for distance. Pulleys are the perfect solution for many common applications.
pulley

Safety Notice

If you use pulleys, you need to take some safety precautions. First, make sure you're wearing the correct protective gear. A hard hat is a must to avoid being hit by falling objects. You may also want to wear gloves for added protection. You should also maintain a good distance from the pulley so that nearby people can walk around it safely.
Another important safety measure to take before using a chain hoist is to barricade the area to be lifted. Use marker lines to prevent the load from sliding when moving horizontally. Finally, use only the sprocket set for vertical lift. Always install shackle pins before lifting. You should also wear personal protective equipment such as earplugs and safety glasses when using the chain hoist.
In addition to these safety measures, you should also use cables made from aerospace-grade nylon. They will last many cycles and are made of high quality materials. Also, make sure the cables are lubricated. These measures reduce friction and corrosion. No matter what industry you are in, be sure to follow these precautions to ensure a long service life for your cables. Consult the cable manufacturer if you are unsure of the appropriate material. A company with 60 years of experience in the cable industry can recommend the right material for your system.

China Hot selling China Supplyer Chain Pulley Block wholesaler China Hot selling China Supplyer Chain Pulley Block wholesaler

China best Vc-B Type Pulley Block, Hand Chain Hoist Lifting Machines near me supplier

Product Description

VC-B type Pulley Block, Hand Chain Hoist lifting machines
 

CB-B Series Chain Pulley Block is a portable lifting device easily operated by hand. It is suitable for using in factory, workshop, plant, agricultural production and in docks and storage for fixing machines, lifting cargo and loading and unloading goods. It is especially advantageous for lifting work in the power supply is not available. The chain pulley block can be attached to a trolley of any type as a travelling chain pulley block. It is suitable to monorail overhead conveying system, had travelling crane and jib crane.

Chain Pulley Block Features:

Chain Pulley Block Chain Hoist:
Capacity: From 1T to 3T
This innovative and patented hand chain hoist the CZPT forge 360 is designed for heavy industrial applications.
This 360 rotating hand chain CZPT allows hoist operations from various angles and helps the operator stay out of the danger zone.
Premium brake system ensures safe operation, low maintenance and is extremely quiet.
Sealed Roller Bearings

Easy to install:
Compact design and low headroom make the series simple to install even in confined working areas. No adjustments necessary.

Strength:
Equipped with hardened load chain for optimum strength, flexibility and long wear life.

Low maintenance:
Enclosed housing allows outdoor use.
The load brake requires no lubrications.

Quality features:
1. Wheel cover with CZPT slots guard against jamming and slipping of chain.
2. Forged swivel hooks and latches prevent twisting of chain and reduce unintentional unhooking of the unit or load.
3. Chain CZPT and stripper ensures proper fit of chain over pocket wheel.
4. Two-stage gear reduction with hardened gears and pinion.

Chain Pulley Block Parameters:

Model CB-B
Capacity(ton) 0.25 0.5 1 1.5 2 3 5 7.5 10
Standard lifting height(m) 2.5 2.5 2.5 2.5 2.5 3 3 3 3
Running Test Load(ton) 0.3125 0.625 1.25 1.875 2.5 3.75 6.25 9.375 12.5
Headroom H(mm) 280 345 376 442 470 548 688 765 765
Effort to required to lift max. load(N) 226 235 245 255 324 363 353 373 380
Load Chain Dia. (mm) Columns 1 1 1 1 1 1 2 3 4
Dia+Pitch 4× 12 5× 15 6× 18 7× 21 8× 24 10× 28 9× 27 9× 27 9× 27
Dimension
(mm)		 A 121 148 172 196 210 255 280 433 463
B 114 132 151 173 175 205 189 189 189
C 24 25 30 33 35 40 42 56 56
D 31 31.5 37.5 42.5 45 50 53 85 85
Net Weight(kg) 6.5 9.3 12.2 16.5 19.5 32 41.1 61.6 75.7
Packing Measurements
(l× w× h)(mm)		 23× 16× 15 30× 17× 18 32× 18× 19 37× 20× 24 37× 20× 24 43× 40× 30 47× 44× 35.5 62× 47× 39.5 53× 51× 46.5
Extra Weight per meter
of extra lift(kg)		 0.81 1 1.29 1.61 1.92 2.68 4.1 5.86 7.73

Chain Pulley Block Details:

Chain Pulley Block Pictures: 

Chain Pulley Block Package:

About US:

LIFTOR ENTERPRISES was founded in 2000 and is a leading manufacturer of lifting and material handling equipment with almost 20 years experience. We provide quality, safety and stable products to meet the highest industrial standards. We are ISO9001:2008 certified company, our products are GS,CE certified, serving all sphere of industry in the world.
 
Our brand CZPT is well sold in more than 50 countries worldwide and has earned an enviable reputation for high quality products. With our professional R&D team, we are CZPT to provide customization services with the most professional quality and never stop meeting the highest standard of safety.

LIFTOR will never stop being as an innovative manufacturer. We will continue to develop and extend our products range with high quality, safety standard and long life usage. 

Why choose us?

1. We are your one-stop service and solutions provider,certified by CE.

2. Exporting to Europe,USA,Australia,Mid East,Southeast Asia and Africa.

3. 100+ containers per month.Turnover more than US Dollar around40 millions in both 2019/2571.

4. Group company established in 2000 and be Globalsource member for more than 20 years.

5. Strict quality control and with long term quality inspection contract with SGS.

6. Products is underwritten by the China Property Insurance Company(PICC) as quality assurance for customer.

7. Passed 3rd party audit arranged by several top 500 company and be their long term contract supplier.

8. Pre-shipment quality inspection for customer by picture/video.

9. Meet Customized requirement on design and logo.

10. Small order acceptable.

 

 

Types of Pulley Systems

If you've ever tried to lift a pail of water, you've probably seen the pulley system in action. Pulleys are extremely useful tools for everything from household appliances to heavy industrial machinery. Different kinds of pulley systems are classified according to their amount of motion. Some types have fixed axes, while others have movable axes. Some common uses of pulleys are listed below.

two-wheel pulley

Pulleys are complex structures with thin-walled and thick-walled sections. Therefore, they require specific forging designs. The tool concept for the production of pulleys is shown in Figure 11.6. Using the generated tool, the pulley can be forged into different shapes. Process parameters must be optimized based on material, surface quality and metallographic analysis.
Pulleys are wheels mounted on shafts. Its main function is to assist the movement of heavy objects. A single-wheel pulley can change the direction of the force, enabling a person to pull heavy objects. A dual-wheel pulley distributes the weight evenly across both wheels, allowing it to lift the same weight with half the effort.
The mechanical advantage of a two-wheel pulley is that it reduces the force required by about half. A 100 kg object can be lifted with a force of 500 Newtons. The mechanical advantage of a pulley with 2 wheels is twice that of a single-wheel pulley. However, care should always be taken when using two-wheel pulleys.
Two-wheel pulleys can be fixed or movable. A single wheel pulley can only change direction when the load is placed on 1 side of the wheel. Two-wheel pulleys change direction when lifting a load, requiring half the force. Live wheels are better for heavier loads. The movable pulley can be adjusted with the load, and the load distribution is more uniform. Active pulleys can be used with single-rope or two-wheel pulleys.
A pulley system with 2 wheels is called a compound pulley. This type of pulley system has a complex design that reduces the force required to move the load. Two-wheel pulleys are common in industrial and construction environments. These pulleys require a lot of space to install and operate. Additionally, they require regular maintenance to avoid wear and tear.
pulley

composite pulley

Compound pulleys are used to increase lift. One fixed pulley is attached to the overhead while the other fixed pulley is attached to the load. This setup minimizes the force required to lift weights, allowing you to lift heavier weights. There are several different types of compound pulleys, each with their own strengths and weaknesses. Below are some examples of their application. Some of the most common are listed below.
Composite pulleys are usually made from 2 different types of wheels. The first 1 is fixed and secure. The second type, movable, is attached to something that moves. The third type, compound pulley, is a combination of a movable pulley and a fixed pulley. Below are 3 types of comparisons. The table below compares them and explains their advantages and disadvantages. Composite pulleys are the most versatile of the three.
The number of sheave segments that make up the composite sheave system increases the mechanical advantage of the system. Each segment adds 1 percent of the total weight, and the ideal mechanical advantage is 2 or more. So a compound pulley with 4 segments will lift three-quarters of the weight. This is because the force applied to the load is multiplied by four. The result is a better boost.
While composite pulleys have many uses, they are most commonly used on larger sailboats. These pulleys work by changing the direction of the control wire or by changing the mechanical force of the rope. They also make it easier to lift heavier objects. Composite pulleys are more expensive than simple pulleys, so consider your needs before buying. The advantages of composite pulleys outweigh the disadvantages.
A basic compound pulley is a device consisting of 2 wheels with fixed points. Ropes are looped around the wheels and are used to lift heavy objects. When you pull on the rope, the rope pulls the 2 wheels closer together. Serious injury could result if this equipment is installed incorrectly. Never exceed the lifting capacity of pulleys and other safety devices that may be attached. When using pulleys, be sure to follow the instructions on the mounting hardware to avoid accidents.
pulley

Fixed pulley

Moving pulleys and fixed pulleys are different types of mechanical devices. The movable pulley moves with the object it is used to lift. Because it attaches to the object it is used to lift, it is great for lifting heavy objects. These devices are used in construction cranes and multipurpose elevators. There are many different types of pulleys, and their uses vary widely. Below is a brief overview of these devices.
The simplest pulley set consists of a wheel that is mounted on the ceiling. A rope is attached at 1 end and a person pulls at the other end. The rope is strong enough to keep a person standing while lifting weights. It takes about 200 Newtons of force to lift a 20 kg weight. In contrast, a movable pulley requires a force of 1000N, which makes it easier to lift heavy objects.
Fixed pulleys are another common lifting device. They work by using ropes and slotted wheels attached to the object to be lifted. These devices are convenient to use because they are easy to set up. Moving the scroll wheel doesn't change direction, so it's easier to move objects without putting too much pressure on the back. Unlike a moving rope, a moving object will feel much lighter than its actual weight.
Fixed pulleys are widely used in construction and agriculture. Fixed pulleys can help lift supplies and equipment from scaffolding. These items are often heavy and difficult to lift directly. Fixed pulleys at the top of the scaffolding will allow people at the bottom to lift objects more easily. As a result, those at the bottom are less stressed and more productive. Fixed pulleys will save time and money compared to moving ropes.
Composite pulleys combine fixed and movable pulleys to increase the power of movement. A compound pulley system uses both types of pulleys and enables a person to change direction by reversing the direction of a force. The compound pulley system will save time and effort as the user only has to put in half the effort. Unlike moving ropes, composite pulleys are easy to adjust and are the most versatile system on the market.
pulley

Blocks and tackles

A pulley block system is a rope hoist that uses a set of pulleys mounted on a frame. The blocks are arranged in a row, and the threaded rope is called a pulley. Pulley systems help amplify the tension of the rope and are common in sailboats, cranes and drilling rigs. However, these systems are not without drawbacks.
The pulley pulley system can be equipped with as many pulleys as required. This method allows a person to lift heavy objects. The pulley block system can contain the required number of pulleys to achieve the desired height. The main disadvantage of pulley systems is that they create a lot of friction on the pulley shaft.
Pulley systems use 2 types of pulleys. A movable pulley is attached to the load, allowing it to move with the load. On the other hand, fixed pulleys are fixed on fixed points. Therefore, a pulley block system may consist of multiple pulleys mounted on a shaft. For example, the 2 pulleys attached to the shaft each have their own mechanical advantages.
Several types of tackle systems have been developed in recent centuries. The most basic is the gun mount, which uses 2 pulleys to lift the load. The mechanical advantage of such a system is 2 to 3 times the distance required by the rope to move the load. Depending on how they're assembled, the system can lift 400 pounds with 80 or 100 pounds of force.
Another type of pulley is a combination of multiple wheels. The wheels on pulleys are supported by a housing or frame. The chain is attached to the pulley, and the rope is pulled to lift it. A combined pulley system will have multiple wheels. As the load increases, the force on the pulley also increases. This approach is generally more expensive than intercept and intercept systems.

China best Vc-B Type Pulley Block, Hand Chain Hoist Lifting Machines near me supplier China best Vc-B Type Pulley Block, Hand Chain Hoist Lifting Machines near me supplier

China high quality Electric Lifting Hoist Motorised Chain Pulley Block 10 Ton with Free Design Custom

Product Description

Our after-sales service provide:

1. 12 months warranty when products leave the factory, or 12 months warranty after installation 
     and commissioning in addition to the human damage factors.
2. 1 years spare-parts provided for better maintenance.
3.Professional technical staffs provide installation, commissioning and training services.
4.Delivery with English user manual, parts manual, product certification and other relevant certificates.
5.Technical advisory for any time and Engineers available to service machinery overseas.

FAQ

1, What's information should I provide to get the price?

More parameters, such as lifting capacity, lifting height, span, power supply, etc. And if you can give us your design drawing, that will be very helpful.

2, Which kind crane can you provide?

Eurocrane is a famous leading manufacturer with experienced designers, engineers and a 2000- people R&D team to provide all kinds crane with customized parameters.

3, What services can you provide?

We have a complete pre-sales&after-sales service system, and our engineers are available overseas. And we also provide training for your crane operators.

4, Which brand are the accessories and electronic components in your cranes?

We have a long term cooperations with ABB, Siemens, Schneider, SEW, etc. And we have world-leading processing machines which are imported from Japan and German.

5, Do you provide crane spare parts?

Yes, of course, we can provide motors, reducers, brakes, hooks, remote controllers, wheels, crane rails, end carriages, enclosed busbar and so on. 

The importance of pulleys

A pulley is a wheel that rides on an axle or axle. The purpose of the pulley is to change the direction of the tensioning cable. The cable then transfers the power from the shaft to the pulley. This article explains the importance of pulleys and demonstrates several different uses for this machine. Also, see the Mechanical Advantages section below for the different types. let's start.
pulley

simple machine

A simple pulley machine is a device used to transfer energy. It consists of a wheel with flexible material on the rim and a rope or chain tied to the other end. Then lift the load using the force applied to the other end. The mechanical advantage of this system is one, as the force applied to the load is the same as the force on the pulley shaft.
A simple pulley machine has many benefits, from the ability to build pyramids to building modern buildings with it. Pulleys are also popular with children because they can perform simple tasks such as lifting toys onto a slide, sliding them off the slide, and lifting them up again. These activities, called "transportation" by child development theorists, allow them to learn about the physics of simple machines in the process.
The mechanism works by using cables to transmit force. The cable is attached to 1 side of the pulley and the other side is pulled by the user. Lift the load by pulling on 1 end and the other end of the rope. Simple pulley machines have many commercial and everyday applications, including helping move large objects. They can be fixed or movable, and can be a combination of both. The present invention is a great tool for any beginner or engineer.

axis

The axle wheel is the basic mechanical part that amplifies the force. It may have originally appeared as a tool to lift buckets or heavy objects from a well. Its operation is demonstrated by large and small gears attached to the same shaft. When applied to an object, the force on the large gear F overcomes the force W on the pinion R. The ratio of these 2 forces is called the mechanical advantage.
The ideal mechanical advantage of shaft pulleys is their radius ratio. A large radius will result in a higher mechanical advantage than a small radius. A pulley is a wheel through which a rope or belt runs. Often the wheels are interconnected with cables or belts for added mechanical advantage. The number of support ropes depends on the desired mechanical advantage of the pulley.
In the design of the axle wheel, the axle is the fulcrum and the outer edge is the handle. In simple terms, wheels and axle pulleys are improved versions of levers. The axle pulley moves the load farther than the lever and connects to the load at the center of the axle. Shaft pulleys are versatile and widely used in construction.

rope or belt

Ropes or pulleys are mechanical devices used to move large masses. The rope supports a large mass and can be moved easily by applying a force equal to 1 quarter of the mass to the loose end. Quad pulleys have 4 wheels and provide the mechanical advantage of 4 wheels. It is often used in factories and workshops. It is also a popular choice in the construction industry. If you are installing a pulley in your vehicle, be sure to follow these simple installation instructions.
First, you need to understand the basics of how a rope or pulley works. The machine consists of 1 or more wheels that rotate on an axle. The rope or belt is wrapped around the pulley and the force exerted on the rope is spread around the pulley. It then transfers the force from 1 end of the rope to the other. The pulley system also helps reduce the force required to lift objects.
Another common rope or pulley is the differential pulley. This is similar to a rope pulley, but consists of 2 pulleys of different radii. The tension in the 2 halves of the rope supports half the load that the live pulley should carry. These 2 different types of pulleys are often used together in composite pulley systems.
pulley

Mechanical advantage

The mechanical advantage is the ratio of the force used to move the load through the pulley system to the force applied. It has been used to measure the effectiveness of pulley systems, but it also requires assumptions about applied forces and weights. In a simple 1:1 pulley system, the weight lifting the weight is the same as the weight of the person pulling the weight. Adding mechanical advantage can help make up for the lack of manpower.
This advantage stems from the mechanical properties of simple machines. It requires less force and takes up less space and time to accomplish the same task. The same effect can also be achieved by applying less force at a distance. Furthermore, this effect is called the output force ratio. The basic working principle of a pulley system is a rope with a fixed point at 1 end. The movable pulley can be moved with very little force to achieve the desired effect.
The load can be moved through the vertical entry using a simple pulley system. It can use a simple "pulley block" system with a 2:1 "ladder frame" or a 4:1 with dual pulleys. This can be combined with another simple pulley system to create a compound pulley system. In this case, a simple pulley system is pulling another pulley, giving it a 9:1 mechanical advantage.

Commonly used

You've probably seen pulley systems in your kitchen or laundry room. You probably already use it to hang clothes on an adjustable clothesline. You may have seen motor pulleys in the kitchens of commercial buildings. You might even have seen 1 on a crane. These machines use a pulley system to help them lift heavy loads. The same goes for theaters. Some pulleys are attached to the sides of the stage, enabling the operator to move up and down the stage.
Pulley systems have many uses in the oil and petroleum industry. For example, in the oil and gas industry, pulley systems are used to lay cables. They are arranged in a pulley structure to provide mechanical energy. When the rope is running, 2 pulleys are hung on the derrick to facilitate smooth running. In these applications, pulleys are very effective in lifting heavy objects.
A pulley is a simple mechanical device that converts mechanical energy into motion. Unlike chains, pulleys are designed to transfer power from 1 location to another. The force required to lift an object with a pulley is the same as that required by hand. It takes the same amount of force to lift a bucket of water, but it's more comfortable to pull sideways. A bucket of water weighs the same as when lifted vertically, so it's easy to see how this mechanism can be useful.
pulley

Safety Notice

When using pulleys, you should take several safety precautions to keep your employees and other workers on the job site safe. In addition to wearing a hard hat, you should also wear gloves to protect your hands. Using pulleys can lead to a variety of injuries, so it's important to keep these precautions in mind before using pulleys. Here are some of the most common:
Pulleys are an important piece of equipment to have on hand when lifting heavy objects. Pulleys not only reduce the force required to lift an object, but also the direction of the force. This is especially important if you are lifting heavy objects, such as a lawn mower or motorcycle. Before starting, it is important to make sure that the anchoring system can support the full weight of the object you are lifting.
When using a pulley system, make sure the anchor points are adequate to support the load. Check with the pulley manufacturer to determine the weight it can safely lift. If the load is too large, composite pulleys can be used instead. For vertical lifts, you should use a sprocket set and wear personal protective equipment. Safety precautions when using pulleys are critical to worker health and safety.

China high quality Electric Lifting Hoist Motorised Chain Pulley Block 10 Ton with Free Design CustomChina high quality Electric Lifting Hoist Motorised Chain Pulley Block 10 Ton with Free Design Custom

China supplier Dhs Capacity 5 Ton Chain Pulley Block with Great quality

Product Description

 

Product description:

The Electrict Chain Hoist features a simple, efficient and economical design. Its compact design, low headroom and lightweight steel construction makes this hoist easy to install and operate , even in confined spaces.

1.Chain: adopts high strength chain and high precision welding technology,meet ISO3077-1984 international standard;fits for gusty overload work conditions;takes your hands a better feeling;multi-angle operation(with 45°).
2.Hook: made of high-class alloy steel,it has high strength and high security;by using new design,weight will never escape.
3.Limit Switch: using limit switch component in designation to protect chain and ensure security.
4.Components: main components are all made of high-class alloy steel,with high precision and security.
5.Framework: slight design and more beautiful;with less weight and smaller work area.
6.Plastic Plating: by adopting advanced plastic plating technology inside and outside,it looks like a new 1 after years of operation.
7.Encloser: made of high-classed steel,more firmly and dexterous.

Details of product:
1. Electric motor partial outer cover
High strength aluminum shell through compression casting formation.
Features: Solid and light, Fast release heat, Continuous use, Enclosed structure. Can be used in the chemical plants, electroplating factories, and other places.
2. Side magnetic braking device
This masterly structure ensure the hoist absolutly safty when the power off. And ensures it is safe when has excess load. Also it combine to the motor braking as the double brake system to strengthen security and durability.
3. Gear
The gear made of alloy steel and through the heat treatment
4. Antiphase protector
Advatages: When power-supply wiring mistake, the control circuit is unable to move.
5. Hooks
They are made by hot forging and heat treatment.
6. Chain
It is made of FEC80 ultra strong heat treatment alloy steel.
Advatages: It is safely approximately when used in the rain water, the sea water, under the chemical and other bad conditions.
7. ISO: M4 /FEM: 1AM(M5 customized available)
Insulation grade: F

8. Protection class (hosit and push button): IP54
9. Powder supply: 3 phase, 200-600v, 50HZ
10. Noise (single/ double speed): 81dB.

Specifications as belows:
 

Product parameters- 5 ton portable electric chain hoist,construction hoist wireless remote control
Model
  HSY		 Capacity
  TON		 Lifting
Height
    M		 Lifting
Speed
M/MIN		 Lifting  motor Drive  motor
Power
KW		 Rotational
Speed
  R/MIN		 Ph
ase		 Voltage
V		 Frequency
HZ/S		 Power
KW		 Rotational
Speed
R/MIN		 Running
speed
M/MIN		 Ph
ase		 Voltage
V		 Frequency
HZ/S
01-01 1 3/9 6.8 1.5 1440 3 380/220 50/60 0.4 1440 11/21 3 380/220 50/60
02-02 2 3/9 3.4 1.5 1440 3 380/220 50/60 0.4 1440 11/21 3 380/220 50/60
2.5-01 2.5 3/9 6.8 3.0 1440 3 380/220 50/60 0.75 1440 11/21 3 380/220 50/60
03-02 3 3/9 5.8 3.0 1440 3 380/220 50/60 0.75 1440 11/21 3 380/220 50/60
05-02 5 3/9 2.8 3.0 1440 3 380/220 50/60 0.75 1440 11/21 3 380/220 50/60

Detailed image:

Company info:
HangZhou CZPT Hoisting Machinery Plant 's main development and production facility in HangZhou, offers future-oriented solutions with chain systems and components for a wide range of applications.

As the second largest chain manufacturer, our other hoisting machineries have a huge cost advantage. For hoisting, moving, pulling, driving and conveying, our lifting equipment includes hoist chains,  Chain block and Electric hoist are a guarantee of quality, innovation and safety.

Advanced technology, excellent talents and high quality products make HangZhou CZPT Hoisting Machinery Plant the ideal choice for you.

Please don't hesitate to contact to us!
 
We sincerely hope to build a cooperative and mutual beneficial business relationship with you!

Types of pulleys and their advantages and disadvantages

There are several types of pulleys. Learn the basic equations of the pulley system. Then learn about the different uses for pulleys. The disadvantages of using pulleys will be covered. Knowing these, you can buy the pulley that suits your needs. Here are some of the best pulley types and their pros and cons.
pulley

Basic equations of pulley systems

A pulley system is a mechanism that allows 2 blocks of a certain mass to be connected by a taut rope. The acceleration of each block is the same in magnitude and direction. The external force acting on each block is the weight of the block (10g) and the tension in the string. The tension between the 2 blocks is the total tension and the force acting on the pulley is the weight of the 2 blocks.
This simple mechanism uses 2 simple equations to explain how the system works. First, the mass of the weight on both sides of the pulley must be the same. When the weight is forced to move, the rope tightens and the second pulley descends. The weight is also attached to the second pulley and must be the same distance as the first pulley. This will result in a speed ratio of 2 times the distance covered by the first pulley.
Second, we have to calculate the force required to lift the object. The lower mass is supported by a wire configuration passing through all pulleys, while the uppermost pulley is used to apply the force. The lower block is used to support the weight. The applied force needs to travel a distance nx to move the weight. This distance, called MA, can be written as:
Once we have gathered the necessary information, we can apply the calculations to the pulley system. We can also use the Mechanical Advantage Calculator to calculate the force on the anchor. To do this, we must apply a force to the load as well as to the pulley itself. Using this equation, we can calculate the force required by the load to lift the load.
pulley

Types of pulleys

There are 3 basic types of pulleys: movable, fixed and compound. Both types of pulleys translate the force applied to them. The ideal mechanical advantage of pulleys is two. This is because a single movable pulley only doubles the force, whereas a compound pulley doubles or triples the force. This type of pulley is often used with other types of pulleys.
Movable pulls move with the weight of the load, and the force pulling them increases on the lift side. They are often found in utility elevators and construction cranes. These systems are very simple, inexpensive and quiet to use. The force required to lift the object depends on the mechanical advantage of the system. The 2 most common types of pulleys are listed below. Let's take a closer look at each one.
V-shaped pulleys are used in vehicles and electric motors. These pulleys require a "V" belt to function properly. Some have multiple "V" grooves to avoid slipping. They are used in heavy duty applications to reduce the risk of power slip. These pulleys also have more than 1 "V" groove. V-belt pulleys are commonly used in vehicles and electric motors.
Composite pulleys are made from more than 1 type of cable or rope wrapped around the wheel. They can be fixed or hinged and are usually made of stainless steel or bronze. Composite pulleys have multiple layers and can be a single unit or many different components. There are 3 main types of pulleys: fixed pulleys and composite pulleys. These are the most common types. Almost every type of pulley is used for some type of application.
Fixed pulleys have 1 advantage over movable pulleys: they change direction as the weight of the load increases. They are typically used in heavy construction equipment. Gun tackles, patio tackles, and stationary tackles are examples of equipment that use a pulley mechanism. These devices are very common and can be found on most modern construction sites. They provide great convenience for lifting large loads.

application

What are the applications of pulleys? Simply put, a pulley is a mechanical device that transforms a difficult task into an easier one. It consists of ropes and pulleys. It is usually used to lift objects. Usually, people wrap a rope around a pulley and pull up to lift the object. One disadvantage of using pulleys is that they require the same force as lifting the object directly.
One of the most popular applications of pulleys is lifting heavy objects. They help people pull up heavy objects and blocks. The system can also be used in seeders, lifts, grinders, etc. Other applications include raising flags, loading cargo, pulling curtains and rock or mountain climbing. Students can learn about the various uses of pulleys and the physics behind them.
Pulleys can be made of many different materials, depending on the application. Some are movable, which means they move with the object they are used to lift. This pulley system can be made of nylon, wire rope or fiber material. The best part about these systems is that they are easy to install and maintain. For a better grasp, use the guide or video tutorial to learn more about the pulley system and how it works.
Tapered pulleys are common in paper mills. They are high-quality pulleys that transmit power to connected parts. They can be dynamic or static and have different balances. Because pulley systems are highly customized, most industrial applications require systems designed specifically for specific applications. In this way, the system is safe, simple and inexpensive. The benefits of this design are endless.
The most common use of pulleys is for motor drives. They are used to minimize noise by applying force to the shaft to reduce the workload. They are also less expensive than gears and do not require lubrication. Furthermore, they can change the direction of the applied force. They are also less expensive than gears and are often used with other components. A screw is a cylindrical member with helical ribs used to connect something.
pulley

shortcoming

Although the pulley system makes it easier to move heavy objects, it still has some drawbacks. When using a pulley system, you must remember that the force required to lift the weight increases with the number of cycles. In addition, the distance between the puller and the heavy object increases, which may lead to accidents. Also, moving heavy objects can be tricky if the rope slips. Pulley systems are not very expensive and can be easily assembled. However, it does require a lot of space.
First, it is not efficient. Besides being inefficient, pulleys produce different forces at different speeds. Fixed pulleys use more force than the load, while movable pulleys move with the load. A movable pulley requires less force than a fixed pulley, but the combined system travels a long distance. Therefore, this method is not as efficient as the fixed method.
Pulleys are not only used in industrial processes. You can see them in various places in your daily life. For example, large construction cranes use pulleys to lift heavy loads. Even flagpoles, blinds, clotheslines, ziplines, motors and climbing equipment use pulleys. Still, despite their advantages, the disadvantages are not too serious.
Another disadvantage of the pulley is its wear and tear. While a pulley's housing is theoretically infinite, its bearings and locking components typically wear out over time. To overcome this problem, a new bearing and locking assembly can be installed. No need to replace the housing and shaft, the entire assembly can be re-bonded and painted to replicate the original look. Alternatively, the pulley can be replaced with a new housing and shaft.
Using pulleys can also reduce the advantage of pulleys. On the other hand, interception and tackle is a system in which 2 pulleys are connected to each other using ropes. Unlike pulleys, pulley pulley systems can be adjusted in the direction of travel and can move heavy loads up to 4 times their force when used in hydraulic lifts.

China supplier Dhs Capacity 5 Ton Chain Pulley Block with Great qualityChina supplier Dhs Capacity 5 Ton Chain Pulley Block with Great quality

China Professional OEM Cast Iron Link Chain Pulley Block with high quality

Product Description

SIZE(IN) W.L.L DIAM OF ROPE(MM) NET WEIGHT(KG)
3 2 3/8 2.25
6 8 1/2 12.4
8 8 3/4 16.5
10 8 3/4 21.5
12 8 3/4 26
14 8 3/4 36
16 15 7/8 56

A. Durable powder coat finish.

B. Heavy-duty permits to perform under extreme condition. 
C. Rated loads is from 2MT to 50MT. 
D. Safety factor: 4 times. 
E. 200% over load capacity test 1 by 1  before package .
F. Manufactured according to ISO9001 quality standard.
G. CE  approved.

H. One year guarantee.

High quality carton or wooden box.

Can I get a sample before order?       
sure, we provide you Free sample within 3-5 working days.

can you accept small order?   
for some normal items, we can do small quantity according your details requirement.

How about your delivery time?
25-30days

Types of pulleys and their advantages and disadvantages

There are several types of pulleys. Learn the basic equations of the pulley system. Then learn about the different uses for pulleys. The disadvantages of using pulleys will be covered. Knowing these, you can buy the pulley that suits your needs. Here are some of the best pulley types and their pros and cons.
pulley

Basic equations of pulley systems

A pulley system is a mechanism that allows 2 blocks of a certain mass to be connected by a taut rope. The acceleration of each block is the same in magnitude and direction. The external force acting on each block is the weight of the block (10g) and the tension in the string. The tension between the 2 blocks is the total tension and the force acting on the pulley is the weight of the 2 blocks.
This simple mechanism uses 2 simple equations to explain how the system works. First, the mass of the weight on both sides of the pulley must be the same. When the weight is forced to move, the rope tightens and the second pulley descends. The weight is also attached to the second pulley and must be the same distance as the first pulley. This will result in a speed ratio of 2 times the distance covered by the first pulley.
Second, we have to calculate the force required to lift the object. The lower mass is supported by a wire configuration passing through all pulleys, while the uppermost pulley is used to apply the force. The lower block is used to support the weight. The applied force needs to travel a distance nx to move the weight. This distance, called MA, can be written as:
Once we have gathered the necessary information, we can apply the calculations to the pulley system. We can also use the Mechanical Advantage Calculator to calculate the force on the anchor. To do this, we must apply a force to the load as well as to the pulley itself. Using this equation, we can calculate the force required by the load to lift the load.
pulley

Types of pulleys

There are 3 basic types of pulleys: movable, fixed and compound. Both types of pulleys translate the force applied to them. The ideal mechanical advantage of pulleys is two. This is because a single movable pulley only doubles the force, whereas a compound pulley doubles or triples the force. This type of pulley is often used with other types of pulleys.
Movable pulls move with the weight of the load, and the force pulling them increases on the lift side. They are often found in utility elevators and construction cranes. These systems are very simple, inexpensive and quiet to use. The force required to lift the object depends on the mechanical advantage of the system. The 2 most common types of pulleys are listed below. Let's take a closer look at each one.
V-shaped pulleys are used in vehicles and electric motors. These pulleys require a "V" belt to function properly. Some have multiple "V" grooves to avoid slipping. They are used in heavy duty applications to reduce the risk of power slip. These pulleys also have more than 1 "V" groove. V-belt pulleys are commonly used in vehicles and electric motors.
Composite pulleys are made from more than 1 type of cable or rope wrapped around the wheel. They can be fixed or hinged and are usually made of stainless steel or bronze. Composite pulleys have multiple layers and can be a single unit or many different components. There are 3 main types of pulleys: fixed pulleys and composite pulleys. These are the most common types. Almost every type of pulley is used for some type of application.
Fixed pulleys have 1 advantage over movable pulleys: they change direction as the weight of the load increases. They are typically used in heavy construction equipment. Gun tackles, patio tackles, and stationary tackles are examples of equipment that use a pulley mechanism. These devices are very common and can be found on most modern construction sites. They provide great convenience for lifting large loads.

application

What are the applications of pulleys? Simply put, a pulley is a mechanical device that transforms a difficult task into an easier one. It consists of ropes and pulleys. It is usually used to lift objects. Usually, people wrap a rope around a pulley and pull up to lift the object. One disadvantage of using pulleys is that they require the same force as lifting the object directly.
One of the most popular applications of pulleys is lifting heavy objects. They help people pull up heavy objects and blocks. The system can also be used in seeders, lifts, grinders, etc. Other applications include raising flags, loading cargo, pulling curtains and rock or mountain climbing. Students can learn about the various uses of pulleys and the physics behind them.
Pulleys can be made of many different materials, depending on the application. Some are movable, which means they move with the object they are used to lift. This pulley system can be made of nylon, wire rope or fiber material. The best part about these systems is that they are easy to install and maintain. For a better grasp, use the guide or video tutorial to learn more about the pulley system and how it works.
Tapered pulleys are common in paper mills. They are high-quality pulleys that transmit power to connected parts. They can be dynamic or static and have different balances. Because pulley systems are highly customized, most industrial applications require systems designed specifically for specific applications. In this way, the system is safe, simple and inexpensive. The benefits of this design are endless.
The most common use of pulleys is for motor drives. They are used to minimize noise by applying force to the shaft to reduce the workload. They are also less expensive than gears and do not require lubrication. Furthermore, they can change the direction of the applied force. They are also less expensive than gears and are often used with other components. A screw is a cylindrical member with helical ribs used to connect something.
pulley

shortcoming

Although the pulley system makes it easier to move heavy objects, it still has some drawbacks. When using a pulley system, you must remember that the force required to lift the weight increases with the number of cycles. In addition, the distance between the puller and the heavy object increases, which may lead to accidents. Also, moving heavy objects can be tricky if the rope slips. Pulley systems are not very expensive and can be easily assembled. However, it does require a lot of space.
First, it is not efficient. Besides being inefficient, pulleys produce different forces at different speeds. Fixed pulleys use more force than the load, while movable pulleys move with the load. A movable pulley requires less force than a fixed pulley, but the combined system travels a long distance. Therefore, this method is not as efficient as the fixed method.
Pulleys are not only used in industrial processes. You can see them in various places in your daily life. For example, large construction cranes use pulleys to lift heavy loads. Even flagpoles, blinds, clotheslines, ziplines, motors and climbing equipment use pulleys. Still, despite their advantages, the disadvantages are not too serious.
Another disadvantage of the pulley is its wear and tear. While a pulley's housing is theoretically infinite, its bearings and locking components typically wear out over time. To overcome this problem, a new bearing and locking assembly can be installed. No need to replace the housing and shaft, the entire assembly can be re-bonded and painted to replicate the original look. Alternatively, the pulley can be replaced with a new housing and shaft.
Using pulleys can also reduce the advantage of pulleys. On the other hand, interception and tackle is a system in which 2 pulleys are connected to each other using ropes. Unlike pulleys, pulley pulley systems can be adjusted in the direction of travel and can move heavy loads up to 4 times their force when used in hydraulic lifts.

China Professional OEM Cast Iron Link Chain Pulley Block with high qualityChina Professional OEM Cast Iron Link Chain Pulley Block with high quality

China supplier Manual 1ton 2ton 3ton Vital Chain Pulley Block Lifting Machine with high quality

Product Description

Manual 1Ton 2Ton 3Ton Vital Chain Pulley  Block Lifting Machine 
Product Description

Applcation: 

VT TYPE Chain Block is a portable lifting device easily operated by hand. It is suitable for use in factories, mines, farms, construction sites, agricultural production, and in wharfs, docks and storages for fixing machines, lifting cargos, and loading and unloading goods. 

It is especially advantageous for lifting work in the open air and places where no power supply is available. 

The chain block can be attached to a trolley of any type as a traveling chain block. It is suitable to monorail overhead conveying system, handtravelling crane and jib crane. 

Feature: 

Safety, reliable in operation with minimum maintenance; 

High effiency and small hand pull; 

Light weight and easy handling; 

Fine appearance with small size; 

Durability in service. 

Packaging: 

Work shop: 

Apply for

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Mechanical advantages of pulleys

A pulley is a mechanical device used to transmit motion. The device has a variety of uses, including lifting heavy objects. In this article, we will discuss the mechanical advantages, types, common uses and safety considerations of pulleys. We'll also discuss how to identify pulleys and their components, and what to look out for when using pulleys. Read on to learn more about pulleys.
pulley

Mechanical advantages of pulleys

The mechanical advantage of pulleys is that they change the direction of force from 1 direction to another. In this way, the person lifting the heavy object can change its position with minimal effort. The pulleys are also easy to install and require no lubrication after installation. They are also relatively cheap. Combinations of pulleys and cables can be used to change the direction of the load.
The mechanical advantage of a pulley system increases with the number of ropes used in the system. The more cycles a system has, the more efficient it is. If the system had only 1 rope, the force required to pull the weight would be equal. By adding a second rope, the effort required to pull the weight is reduced. This increase in efficiency is known as the mechanical advantage of the pulley.
Pulleys have many uses. For example, ziplines are 1 application. This is a good example of pulleys in use today. Pulley systems can be complex and require a lot of space. Using ziplines as an example, advanced students can calculate the mechanical advantage of multiple pulleys by dividing the work done by each pulley by the remainder or fraction. Regents at the University of Colorado created a zipline with K-12 input.
Another use for pulleys is weight lifting. This technique is very effective when using multiple strands of rope. A single rope going from 1 pulley to the other with just 2 hands is not enough to lift heavy objects. Using a pulley system will greatly increase the force you receive. This power is multiplied over a larger area. So your lifting force will be much greater than the force exerted by a single rope.
The pulley is a great invention with many uses. For example, when lifting heavy objects, pulleys are a great way to get the job done, and it's easier to do than 1 person. The pulley is fixed on a hinge and rotates on a shaft or shaft. Then pull the rope down to lift the object. A pulley assembly will make the task easier. In addition, it will also allow power to be transferred from 1 rotary shaft to another.
pulley

Types of pulleys

If you are an engineer, you must have come across different types of pulleys. Some pulleys come in multiple types, but a typical pulley has only 1 type. These types of pulleys are used in various industrial processes. Here are some common types of pulleys that engineers encounter on the job. In addition to the above, there are many more. If you haven't seen them in practice, you can check out a list of the different types below.
Fixed pulleys: Fixed pulleys have a roller attached to a fixed point. The force required to pull the load through the fixed pulley is the same as the force required to lift the object. Movable pulleys allow you to change the direction of the force, for example, by moving it laterally. Likewise, movable pulleys can be used to move heavy objects up and down. Commonly used in multi-purpose elevators, cranes and weight lifters.
Composite pulleys combine fixed and movable pulleys. This combination adds to the mechanical advantage of both systems. It can also change the direction of the force, making it easier to handle large loads. This article discusses the different types of pulleys used for lifting and moving. Braided pulleys are an example of these pulleys. They combine the advantages of both types.
A simple pulley consists of 1 or more wheels, which allow it to reverse the direction of the force used to lift the load. On the other hand, dual-wheel pulleys can help lift twice the weight. By combining multiple materials into 1 pulley, a higher ME will be required. Regardless of the type of pulley, understanding the principles behind it is critical.
Pulleys are an important part of construction and mechanical engineering, and their use dates back to Archimedes. They are a common feature of oil derricks and escalators. The main use of pulleys is to move heavy objects such as boats. In addition to this, they are used in other applications such as extending ladders and lifting heavy objects. The pulley also controls the aircraft rudder, which is important in many different applications.

Commonly used

Common uses for pulleys are varied. Pulley systems are found throughout most areas of the house, from adjustable clotheslines to motor pulleys in different machines. Commercially, 1 of the most common uses is for cranes. Cranes are equipped with pulleys to lift heavy objects. It is also common to use pulley systems in tall buildings, which allow tall buildings to move with relative ease.
Pulleys are commonly used in interception and zipline systems, where a continuous rope around the pulley transmits force. Depending on the application, the rope is either light or strong. Pulleys are formed by wrapping a rope around a set of wheels. The rope pulls the object in the direction of the applied force. Some elevators use this system. Pull a cable on 1 end and attach a counterweight on the other end.
Another common use for pulleys is to move heavy objects. Pulleys mounted on walls, ceilings or other objects can lift heavy objects like heavy toolboxes or 2x4 planks. The device can also be used to transfer power from 1 rotating shaft to another. When used to lift heavy objects, pulleys can be used to help you achieve your goals of a good workout.
Pulley systems have a variety of uses, from the most basic to the most advanced. Its popularity is indisputable and it is used in different industries. A good example is timing belts. These pulleys transmit power to other components in the same direction. They can also be static or dynamic depending on the needs of the machine. In most cases, the pulley system is custom made for the job.
Pulley systems can be simple or complex, but all 3 systems transfer energy efficiently. In most cases, the mechanical advantage of a single pulley is 1 and the mechanical advantage of a single active pulley is 2. On the other hand, a single live pulley only doubles the force. This means you can trade effort for distance. Pulleys are the perfect solution for many common applications.
pulley

Safety Notice

If you use pulleys, you need to take some safety precautions. First, make sure you're wearing the correct protective gear. A hard hat is a must to avoid being hit by falling objects. You may also want to wear gloves for added protection. You should also maintain a good distance from the pulley so that nearby people can walk around it safely.
Another important safety measure to take before using a chain hoist is to barricade the area to be lifted. Use marker lines to prevent the load from sliding when moving horizontally. Finally, use only the sprocket set for vertical lift. Always install shackle pins before lifting. You should also wear personal protective equipment such as earplugs and safety glasses when using the chain hoist.
In addition to these safety measures, you should also use cables made from aerospace-grade nylon. They will last many cycles and are made of high quality materials. Also, make sure the cables are lubricated. These measures reduce friction and corrosion. No matter what industry you are in, be sure to follow these precautions to ensure a long service life for your cables. Consult the cable manufacturer if you are unsure of the appropriate material. A company with 60 years of experience in the cable industry can recommend the right material for your system.

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