China Good quality Casting Iron Pulley Wheel, Timing Pulley, V-Belt Pulley wholesaler

Product Description

Product description:;

All kinds of Material Indexes
  Ductile iron grey iron
Material type EN-GJS-400 EN-GJL-150
EN-GJS-450 EN-GJL-200
EN-GJS-500 EN-GJL-250
EN-GJS-600 EN-GJL-300
Chemical composition C:; 3.;5%-3.;8% C:; 3.;2%-3.;7%
Si:; 2.;3%-2.;8% Si:; 1.;8%-2.;5%
Mn:; 0.;3%-0.;5% Mn:; 0.;6%-0.;9%
P:; ≤0.;09% P:; ≤0.;12%
S:; ≤0.;03% S:;≤0.;06%
CT 7-8 7-8
Thickness ≥3.;5mm ≥2.;5mm
Nickle cast iron A436 Type 1
Laser cutting steel material
CNC machining  cast iron,; steel 



Casting foundry with CNC machining center:;

HangZhou Xihu (West Lake) Dis.xiang Casting Co.;,; Ltd.; is a leading casting foundry with over 24 years' casting experience.; We specialize in ductile iron casting ,; grey iron casting,; shell mold casting and nickle iron casting and so on.;Process includes sand casting,; investment casting,; die casting and gravity casting as well as CNC machining.; Our products involve steering knuckle auto parts,; hot plate,; truck brake disc,; pulley wheel,;pump and impeller etc.; Most our products are made according to customers' drawings or samples.;

1.; Supplier:; HangZhou Xihu (West Lake) Dis.xiang Casting Co.;,; Ltd.;


♣ Manufacturer(with over 20 years' casting experience); 

♣ Exporter(export from 2005);

b.;Main market

♣ USA,; UK,; Germany,; Italy,; Japan,; Swiss,; Australia,; Korea,; ZheJiang and South-east Asia etc.;

c.; Advantage

♣ Stable process

♣ Disciplined peoples and operation

♣ The best product features

♣ Quality product performance

♣ Advanced machining and inspecting equipment

♣ Prompt delivery

♣ Quality control system

♣ Precision casting

2.; Capability

a.;Over 20 years' casting experience

b.;Various kinds of machinery equipments and advanced inspection equipments

c.;All of the parts can be inspected with CMM before shipment.;

d.;We have advanced engineers 12 person.;

e.;We had approved through ISO 9001:;2008 quality system.;

f.;We can supply the best products and good services for all of Foreign Clients

3.; OEM and customized service


♥ Drawing:; Most our products are produced according to your drawings or samples.;

♥ Quality:; We have full set quality control system to guarantee the best quality.;

♥ OEM:; oem service is offered.;


♥ In-house foundry

♥ Third party inspection available upon requirement

c.;Packing and shipping

♥ wooden/steel/carton case or pallet (standard export packing);

♥ accept FOB,; FAS,; CIF,; CNF etc.; and customer disignated shipping agent

d.;Our target

♥ To supply at a competitive and reasonable price,; acceptable and stable in quality,; circumspect and satisfactory of service,; punctual delivery time

♥ Development,; Service and Honest
4.; FAQ

1 How can I get the quotation? Please send your drawings to me here  for getting quotation.; 
2 I don't have drawings,; can you make drawins for us?  We can make drawings as your samples,; then quote you soon.;
3 MOQ Usually 5 tons,; but will decide due to the specific design.;
4 Sample lead time 35-40 days
5 What surface treatment can you make?  Painting,; E-coating,; Ni coating,; Zn coating,; Cr coating,; Phosphating,; anit-rust oil,; polishing,; melten salt bath finish etc.; 
6 Are you a manufacturer? Yes,; we are a casting foundry with CNC machining center.; 
7 Total employee 45 people

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.

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.

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.

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 Good quality Casting Iron Pulley Wheel, Timing Pulley, V-Belt Pulley   wholesaler China Good quality Casting Iron Pulley Wheel, Timing Pulley, V-Belt Pulley   wholesaler