China manufacturer 15Ton 33000lbs Orange Snatch Block 33000 lb Recovery Winch Pulley off road chain pulley

Warranty: 1 year
Applicable Industries: Other, Automobile industry
Type: Flat Belt, snatch block
Material: Steel, Steel
Name: Snatch Block
Application: Trailer parts
Process: 1xHeavy Duty 33,000 LB Snatch Block
Color: Black
Surface: Power Coating
Size: 6.89
Quality: High


Warranty1 years
Applicable IndustriesOther
TypeFlat Belt
Place of OriginChina
Applicable IndustriesAutomobile industry
Typesnatch block
NameSnatch Block
ApplicationTrailer parts
Process1xHeavy Duty 33,000 LB Snatch Block
SurfacePower Coating
Size6.89″ x 4.37″
Company Profile ZheJiang taiyao automobile technology co.,ltd. belong to Winjet Group, located in Xihu (West Lake) Dis. district, HangZhou City, ZheJiang Province,China.Winjet Group was founded in 1989. Winjet registered capital is more than HK$70 million. It accupied a workplace area of approximate 50000m2,more than 1000 exployees in our company. The fixed asset is over CNY200 million. With large-scale injection machine, vacuum coating machine, PC surface treatment production line, automatic glue robot, U type Island assembly line and other series of advance processing equipment, the production can be guaranteed. We also have advanced dust-free workshop to be sure the quality and satisfy our customers. Besides of advanced equipment and facilities, we also establish high standard quality management system and passed the audit of ECE(RDW), IATF16949, China planetary gearbox ratio 51 NEMA 34 planetary gear reducer with output shaft 16mm for nema 34 stepper motors BSCI, ISO14001, ISO9001. Our product lines cover automotive light such as car headlight, car taillight, fog light, mirror side blinker etc, and also produce wheel cover and exterior and interior trim including front bumper, rear bumper, side-step, fender flare, inner fender etc and with certification of SAE/DOT, ECE/E-Mark and CCC. With the concept of “Innovation, technology leading, continuous improvement” and strong technical team, we are committed to the exploration and research of new technology. More than 10 new models are developed every year to keep our product line updated to meet customers need. Our professional sales team are serving to 1000 customers and our products are exported to more than 140 countries. We look forward to your enquiry and working with you soon. FAQ 1. who are we?We are based in ZheJiang , China, start from 1989,sell to North America(30.00%),Eastern Europe(10.00%), Planetary Gear Motor electric motor speed reducer small gearbox Mid East(10.00%),Western Europe(10.00%),Southern Europe(10.00%),Eastern Asia(5.00%),South Asia(5.00%),Domestic Market(5.00%),South America(4.00%),Southeast Asia(3.00%),Africa(3.00%),Northern Europe(3.00%),Oceania(00.00%),Central America(00.00%). There are total about 301-500 people in our office.2. how can we guarantee quality?Always a pre-production sample before mass production;Always final Inspection before shipment;3.what can you buy from us?Head Light/Tail Light/Fog Light/Wheel Cover/Exterior Trim4. why should you buy from us not from other suppliers?We have been established for 33 years. Our factory occupies more than 50000m2. With more than 1000 skilled worker,advanced equipment and facilities and high standard quality management system. With strong R & D team and professional sales team.5. what services can we provide?Accepted Delivery Terms: FOB,EXW´╝ŤAccepted Payment Currency:USD,CNY;Accepted Payment Type: T/T,L/C; K47 helical bevel gear motor 3 phase motor speed reducer gearbox high torque speed reducer gearbox Language Spoken:Chinese

Three basic types of pulleys, their applications and ideal mechanical advantages

There are three basic types of pulleys: movable, fixed and compound. Each has its advantages and disadvantages, and you should be able to judge which type is best for your needs by looking at the table below. Once you have mastered the different types of pulleys, you can choose the right pulley for your next project. Now that you have mastered the three basic types, it is time to understand their applications and ideal mechanical advantages.


The stress characteristics of a pulley depend on its size and construction. These stresses are derived by comparing the stress characteristics of different pulley designs. Stress criteria include static and fatigue strength analyses and specify maximum stress ranges. Stresses are calculated in a 3D stress field, including radial, tangential and axial stresses. The stress characteristics of pulleys are critical to the design and manufacture of industrial machines.
The principal stresses on the pulley shell are distributed in the tangential and hoop directions, close to the centerline of the pulley. If the pulley has a wide face, the axial stress occurring near the shell/disk junction can be large. The stress distribution was determined using British Standard BS5400 Part 10: Stresses at the shell and end disc connections for infinite fatigue life.
Another type of composite is a pulley with a belt section. Such structures are well known in the art. The corresponding help chapters for these elements contain detailed descriptions of the internal structure of these components. Chamfers between pulleys can also be defined using multiple tapers, with a smaller taper extending from midpoint 44 to large diameter 42. Additionally, the pulley can have multiple taper angles, and as the pulley moves away, the taper angle is from the center.


A pulley system uses a rope to move the object and one side of the rope to lift the load. The load is attached to one end of the pulley, while the other end can move freely in space. The force applied to the free end of the rope pulls the load up or down. Because of this, the mechanical advantage of the movable pulley is two to one. The greater the force applied to the free end of the rope, the greater the amount of movement achieved.
There are three common types of pulleys. The cast-iron variety has a rim at the front and a hub at the back. The arms of the pulley can be straight or curved. When the arms contract and yield instead of breaking, they are in tension. The top of the pulley centers the belt in motion and is available in widths ranging from 9mm to 300mm.
The rope, hub and axle are mounted on the pulley. They are common and versatile mechanical devices that make it easier to move or lift objects. Some pulleys change the direction of the force. Others change the magnitude. All types of pulleys can be used for a variety of different applications. Here are some examples. If you’re not sure which type to choose, you can find more resources online.


The applications for pulleys are almost limitless. This simple machine turns complex tasks into simple ones. They consist of a rope or chain wrapped around a wheel or axle. Using ropes, one can lift heavy objects without the enormous physical exertion of traditional lifting equipment. Some pulleys are equipped with rollers, which greatly magnifies the lifting force.
When used properly, the pulley system can change the direction of the applied force. It provides a mechanical advantage and allows the operator to remain separate from heavy objects. They are also inexpensive, easy to assemble, and require little lubrication after installation. Also, once installed, the pulley system requires little maintenance. They can even be used effortlessly. Despite having many moving parts, pulley systems do not require lubrication, making them a cost-effective alternative to mechanical lifts.
Pulleys are used in many applications including adjustable clotheslines in different machines, kitchen drawers and motor pulleys. Commercial users of pulley systems include cranes. These machines use a pulley system to lift and place heavy objects. They are also used by high-rise building washing companies. They can easily move a building without compromising its structural integrity. As a result, many industries rely on technology to make elevators easier.

Ideal mechanical advantage

The ideal mechanical advantage of a pulley system is the result of rope tension. The load is pulled to the center of the pulley, but the force is evenly distributed over the cable. Two pulleys will provide the mechanical advantage of two pulleys. The total energy used will remain the same. If multiple pulleys are used, friction between pulleys and pulleys reduces the return of energy.
Lever-based machines are simple devices that can work. These include levers, wheels and axles, screws, wedges and ramps. Their ability to work depends on their efficiency and mechanical superiority. The ideal mechanical advantage assumes perfect efficiency, while the actual mechanical advantage takes friction into account. The distance traveled by the load and the force applied are also factors in determining the ideal mechanical advantage of the pulley.
A simple pulley system has an MA of two. The weight attached to one end of the rope is called FA. Force FE and load FL are connected to the other end of the rope. The distance that the lifter pulls the rope must be twice or half the force required to lift the weight. The same goes for side-by-side pulley systems.

Materials used in manufacturing

While aluminum and plastic are the most common materials for making pulleys, there are other materials to choose from for your timing pulleys. Despite their different physical properties, they all offer similar benefits. Aluminum is dense and corrosion-resistant, and plastic is lightweight and durable. Stainless steel is resistant to stains and rust, but is expensive to maintain. For this reason, aluminum is a popular choice for heavy duty pulleys.
Metal can also be used to make pulleys. Aluminum pulleys are lightweight and strong, while other materials are not as durable. CZPT produces aluminium pulleys, but can also produce other materials or special finishes. The list below is just representative of some common materials and finishes. Many different materials are used, so you should discuss the best options for your application with your engineer.
Metals such as steel and aluminum are commonly used to make pulleys. These materials are relatively light and have a low coefficient of friction. Steel pulleys are also more durable than aluminum pulleys. For heavier applications, steel and aluminum are preferred, but consider weight limitations when selecting materials. For example, metal pulleys can be used in electric motors to transmit belt motion.


Replacing a tensioner in a car’s engine can cost anywhere from $90 to $300, depending on the make and model of the car. Cost can also be affected by the complexity of the pulley system and how many pulleys are required. Replacement costs may also increase depending on the severity of the damage. The cost of replacing pulleys also varies from car to car, as different manufacturers use different engines and drivetrains.
Induction motors have been an industrial workhorse for 130 years, but their cost is growing. As energy costs rise and the cost of ownership increases, these motors will only get more expensive. New technologies are now available to increase efficiency, reduce costs and improve safety standards.
The average job cost to replace an idler varies from $125 to $321, including labor. Parts and labor to replace a car pulley can range from $30 to $178. Labor and parts can cost an additional $10 to $40, depending on the make and model of the car. But the labor is worth the money because these pulleys are a critical part of a car’s engine.

China manufacturer 15Ton 33000lbs Orange Snatch Block 33000 lb Recovery Winch Pulley off road     chain pulley

Cast Pulley

As one of the cast pulley manufacturers, suppliers, and exporters of mechanical products, We offer cast pulley and many other products.

Please get in touch with us for details.

Manufacturer supplier exporter of cast pulleys.

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