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Product Description

LCH(HangZhou WeiHangZhoug Precision Metal Co., Ltd.)was found in 2008,with a total investment of $1.5 million,over 4,500 square meters,equiped with the most advanced high precision CNC Milling machine(30sets), CNC  turning machine(32sets),CNC machining center,automatic lathe and various kinds of secondary processing equipment more than 80 sets.

Don’t hesitate to contact us,best Price best quality best service to you.

Customize various parts with CNC turning/CNC milling/CNC lathe/Casting parts( OEM & ODM)

Send us 3D drawing,we will help make it true!!!
 

1.Aluminum/Brass/ stainless steel Precision Product 2.Extrusion/ Profile
3.Hardware 4.Injection molding
5.Aluminum Frame 6.Furniture Part
7.Aluminum Office and Living Product 8.CNC Precision Milling Part
9.CNC Precision Turning Part 10.Punch& Stamping& Stretching& Riveting& Assembly
11.Die Casting& Welding& Forging& Bending Part 12.Medical Aluminum Part
13.Aluminum Pipe 14.Large Cross-section/ High Challenge Heat Sink
15.Mechanical Industrial product/ Auto Part 16.LED Aluminum Accessory
17.Mold Design and Manufacture 18.Surface treatment

1.We are True manufacture with competitive price and fast lead time.

2.we have 2 platform:alibaba & made in China,Rich export experience.

3.High quality and best services,Advanced equipment & Professional experience.

Product Description

High Precision! High-End Finish! Excellent Quality! Best Machining!

(1).Material:Brass/ aluminum/iron/Tin/ stainless steel
(2).Surface Finished: Anodize &Sandblasting
(3).Process: CNC Turning
(4).Tolerance:0.02mm

Parts Information:
(1). Applicable Material—Aluminum/zinc alloy, iron, steel alloy, plastic, brass, steel, and stainless steel
(2). Surface treatment—polishing, zinc plating, nickel plating, chrome plating, anodizing.
(3). Payment Terms: 40% deposit before production and 60% balance before arrange shipping                                                           
(4). Packaging: Standard package/ Pallet or container/ as per customized specifications.
(5). Shipment Terms: Express & air freight is preferred / sea freight/ as per customized specifications.

We have  professional engineers,advanced equipment.more than 5, 000sqm workshop and about 60 sets CNC turning and milling machine make us a modernized and standardized factory. Now we have more than 100 workers, and 5 engineers, as well as 26 professional technicians. Our well-equipped CNC machine workshop has a comprehensive range of precision machining center, milling and turning equipment, all using CNC technology, which enables us to meet the exacting demands of our customers

How we can keep the high quality parts always?

1.All our material will be tested by SGS before production

2. Full control of process:
(1).During the part production,our QC worker will inspect the part size every 1 hour,this will help us to keep the correct tolerance during production
(2). When the parts machining finished,they will be arranged to have surface finished(such as anodize or powder coated),after that,our QC worker will inspect the parts again,because after surface finished,part tolerance may be difference sometimes,if there is any defective parts we found,we will pick them out directly
(3). Before shipping,our package worker will check the part surface and see if there is any scrach or any other thing that affect the part looking,if yes,pick them out.

Customer comments

Conclusion
Thanks for your kind attention, looking forward to your inquiry and we ensure tip top quality products with the best lead-time being provided!any questions just feel free to ask me.Welcome to our factory,best wishes to you!

 

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 manufacturer Custom Precision CNC Machining Factory Turning Parts Aluminum Alternator Pulley for Auto Mobile     with Free Design CustomChina manufacturer Custom Precision CNC Machining Factory Turning Parts Aluminum Alternator Pulley for Auto Mobile     with Free Design Custom

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