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Product Description

General Products      
 Application/Service Area
 
Metal Parts Solution for Vehicle, Agriculture machine, Construction Machine, transportation equipment, Valve and Pump system, Agriculture machine metal Parts, engine bracket, truck chassis bracket, gear box , gear housing , gear cover, shaft, spline shaft , pulley, flange, connection pipe, pipe, hydraulic valve , valve housing ,Fitting , flange, wheel, fly wheel, oil pump housing, starter housing, coolant pump housing, transmission shaft , transmission gear, sprocket, chains etc.
 
 Main blank Process for Casting  
Sand Casting , Resin Sand Casting, Green Sand Casting, Shell Molding, Automatic Molding, Lost Wax Casting, Lost Foam Molding Casting
 
 Blanks Tolerance -Casting  Tolerance CT9-10 for  Machine Molding Process,
CT8-9 for Shell Molding and Lost Foam Molding Casting Process
CT10-11 for Manual Molding Sand  casting Process
 Applicable Material  
See Table Below (Ductile Iron Casting, Grey Iron Casting)
OR According to customer requirement
 
 Casting Blank Size  /Dimensions 2 mm-2000mm / 0.08inch-79inch  for casting iron, according to customer requirement
 Casting Blank Weight Range from 0.01kg-1000kg for casting iron
 Applicable Machining Process  
CNC Machining/ Lathing/ Milling/ Turning/ Boring/ Drilling/ Tapping/ Broaching/Reaming /Grinding/Honing and  etc.
 
 Machining Tolerance From 0.005mm-0.01mm-0.1mm
 Machined Surface Quality Ra 0.8-Ra3.2, according to customer requirement
 Applicable Heat Treatment  
Normalization , annealing, quenching and tempering, Case Hardening, Nitriding, Carbon Nitriding, Induction Quenching
 
 Applicable Finish Surface  Treatment  
Shot/sand blast, polishing, Surface passivation, Primer Painting , Powder coating, ED- Coating, Chromate Plating, zinc-plate, Dacromat coating, Finish Painting.
 
 MOQ For iron casting : 100pcs
For Machining : 50pcs
 Lead Time 45days from the receipt date of deposit for iron casting

 
Ductile Iron Casting Material Comparison Table:

Cast iron with nomular graphite
DIN EN 1563
Germany
DIN 1693
France
NF
Great Britain
BS
Netherlands
NEN
Sweden
MNC
USA
ASTM A536
EN-GJS-350-22-LT GGG-35.3 FGS 370-17 370/17 GN 38 0571 -15 —-
EN-GJS-400-18-LT GGG-40.3     —- —- —- —- 60-40-18
EN-GJS-400-15 GGG-40 FGS-400-12 420/12 GN 42 0571 -02 60-40-18
EN-GJS-400-10 —- —- 420/12 —- —- 65-45-12
EN-GJS-500-7 GGG-50 FGS-500-7 500/7 GN 50 0727-02 65-45-12/
80-55-06
EN-GJS-600-3 GGG-60 FGS-600-3 600/3 GN 60 571-03 80-55-06
EN-GJS-700-2 GGG-70 FGS-700-2 700/2 GN 70 571-01 100-70-03
EN-GJS-800-2 GGG-80 FGS-800-2 800/2     120-90-02
EN-GJS-1000-5 (DIN EN 1564) GGG-100B/A —- —- —- —- 850-550-10
EN-GJS-AX NiSiCr35 5 2 GGG-
NiSiCr 35 5 2
FGS-
Ni35Si5Cr2
S5S —- —- Type D-5S

 
Grey Iron Casting Material Comparison Table:

Cast iron with lamellar graphite
DIN EN 1561
Germany
DIN 1691
France
NF
Great Britain
BS
Netherlands
NEN
Sweden
MNC
USA
ASTM A48
EN-GJL-150 GG-15 Ft 15 D Grade 150 GG 15 01 15-00 20 B / 25 B
EN-GJL-200 GG-20 Ft 20 D Grade 180/220 GG 20 01 20-00 25 B / 30 B
EN-GJL-250 GG-25 Ft 25 D Grade 220/260 GG 25 01 25-00 35 B / 40 B
EN-GJL-300 GG 30 Ft 30 D Grade 300 GG 30 01 30-00 40B / 45 B

 

 

Our Package :

Packing & Delivery  (Show As Above):
Inner Packing →Strong & waterproof plastic big is packed inside, to keep the product in safe condition.
Or as customer requests.

Outer Packing →Multilayer wooden box with strong bandages, used for standard export package.
Or customized as per customer’s requirements.

Our Company

                       ZheJiang CZPT Machinery Manufacture Co., Ltd.
                                                                                                   –Branch of CZPT Ltd. 

We specialize in Metal Parts Solution for Vehicle, Agriculture machine, Construction Machine, transportation equipment, Valve and Pump system etc. 

With keeping manufacturing process design, quality plHangZhou, key manufacturing processes and final quality control in house.
We are mastering key competence to supply quality mechanical parts and assembly to our customers for both Chinese and Export Market .

To satisfy different mechanical and functional requirements from our customers we are making a big range of metal products for our clients on base of different blanks solutions and technologies.
These blanks solutions and technologies include processes of Iron Casting, Steel Casting, Stainless Steel Casting, Aluminum Casting and Forging. 

During the early involvement of the customer’s design process, we are giving professional input to our customers in terms of process feasibility, cost reduction and function approach.

                You are welcome to contact us for technical enquiry and business cooperation.

FAQ:
1. Are you a manufacturer or a trading company?
We are a professional manufacturer with over 15 years’ export experience for designing and producing vehicle machinery parts.

2. How can I get some samples?
If you need, we are glad to offer you samples for free, but the new clients are expected to pay the courier cost,
and the charge will be deducted from the payment for formal order.

3. Can you make casting according to our drawing?
Yes, we can make casting according to your drawing, 2D drawing, or 3D cad model. If the 3D cad model can be supplied,
the development of the tooling can be more efficient. But without 3D, based on 2D drawing we can still make the samples properly approved.

4. Can you make casting based on our samples?
Yes, we can make measurement based on your samples to make drawings for tooling making.

5. What’s your quality control device in house?
We have spectrometer in house to monitor the chemical property, tensile test machine to control the mechanical property and UT Sonic as NDT checking method to control the casting detect under the surface of casting.

How to use the pulley system

Using a pulley system is a great way to move things around your home, but how do you use a pulley system? Let’s look at the basic equations that describe a pulley system, the types of pulleys, and some safety considerations when using pulleys. Here are some examples. Don’t worry, you’ll find all the information you need in 1 place!
pulley

Basic equations of pulley systems

The pulley system consists of pulleys and chords. When the weight of the load is pulled through the rope, it slides through the groove and ends up on the other side. When the weight moves, the applied force must travel nx distance. The distance is in meters. If there are 4 pulleys, the distance the rope will travel will be 2×24. If there are n pulleys, the distance traveled by the weight will be 2n – 1.
The mechanical advantage of the pulley system increases with distance. The greater the distance over which the force is applied, the greater the leverage of the system. For example, if a set of pulleys is used to lift the load, 1 should be attached to the load and the other to the stand. The load itself does not move. Therefore, the distance between the blocks must be shortened, and the length of the line circulating between the pulleys must be shortened.
Another way to think about the acceleration of a pulley system is to think of ropes and ropes as massless and frictionless. Assuming the rope and pulley are massless, they should have the same magnitude and direction of motion. However, in this case the quality of the string is a variable that is not overdone. Therefore, the tension vector on the block is labeled with the same variable name as the pulley.
The calculation of the pulley system is relatively simple. Five mechanical advantages of the pulley system can be found. This is because the number of ropes supporting the load is equal to the force exerted on the ropes. When the ropes all move in the same direction, they have 2 mechanical advantages. Alternatively, you can use a combination of movable and fixed pulleys to reduce the force.
When calculating forces in a pulley system, you can use Newton’s laws of motion. Newton’s second law deals with acceleration and force. The fourth law tells us that tension and gravity are in equilibrium. This is useful if you need to lift heavy objects. The laws of motion help with calculations and can help you better understand pulley systems.
pulley

Types of pulleys

Different types of pulleys are commonly used for various purposes, including lifting. Some pulleys are flexible, which means they can move freely around a central axis and can change the direction of force. Some are fixed, such as hinges, and are usually used for heavier loads. Others are movable, such as coiled ropes. Whatever the purpose, pulleys are very useful in raising and lowering objects.
Pulleys are common in many different applications, from elevators and cargo lift systems to lights and curtains. They are also used in sewing machine motors and sliding doors. Garage and patio doors are often equipped with pulleys. Rock climbers use a pulley system to climb rocks safely. These pulley systems have different types of pinions that allow them to balance weight and force direction.
The most common type of pulley is the pulley pulley system. The pulley system utilizes mechanical advantages to lift weight. Archimedes is thought to have discovered the pulley around 250 BC. in ancient Sicily. Mesopotamians also used pulleys, they used ropes to lift water and windmills. Pulley systems can even be found at Stonehenge.
Another type of pulley is called a compound pulley. It consists of a set of parallel pulleys that increase the force required to move large objects. This type is most commonly used in rock climbing and sailing, while composite pulleys can also be found in theater curtains. If you’re wondering the difference between these 2 types of pulleys, here’s a quick overview:

Mechanical Advantages of Pulley Systems

Pulley systems offer significant mechanical advantages. The ability of the system to reduce the effort required to lift weights increases with the number of rope loops. This advantage is proportional to the number of loops in the system. If the rope had only 1 loop, then a single weight would require the same amount of force to pull. But by adding extra cycles, the force required will be reduced.
The pulley system has the advantage of changing the direction of the force. This makes it easier to move heavy objects. They come in both fixed and mobile. Pulleys are used in many engineering applications because they can be combined with other mechanisms. If you want to know what a pulley can do, read on! Here are some examples. Therefore, you will understand how they are used in engineering.
Single-acting pulleys do not change direction, but compound pulleys do. Their mechanical advantage is six. The compound pulley system consists of a movable pulley and a fixed pulley. The mechanical advantage of the pulley system increases as the number of movable wheels decreases. So if you have 2 wheels, you need twice as much force to lift the same weight because you need a movable pulley.
The mechanical advantage of a pulley system can be maximized by adding more pulleys or rope lengths. For example, if you have a single pulley system, the mechanical advantage is 1 of the smallest. By using 2 or 3 pulleys, up to 5 times the mechanical advantage can be achieved. You can also gain up to 10 times the mechanical advantage by using multiple pulley systems.
The use of a single movable pulley system also adds to the mechanical advantage of the pulley system. In this case, you don’t have to change the direction of the force to lift the weight. In contrast, a movable pulley system requires you to move the rope farther to generate the same force. Using a compound pulley system allows you to lift heavy loads with ease.
pulley

Safety Issues When Using Pulley Systems

Pulleys have an incredibly unique structure, consisting of a disc with a groove in the middle and a shaft running through it. A rope or cord is attached to 1 end of a pulley that turns when force is applied. The other end of the rope is attached to the load. This mechanical advantage means that it is much easier to pull an object using the pulley system than to lift the same object by hand.
Although pulley systems are a common part of many manufacturing processes, some employers do not train their workers to use them properly or install protection to prevent injury. It is important to wear proper PPE and follow standard laboratory safety practices during pulley system activities. Make sure any support structures are strong enough to handle the weight and weight of the rope or rope. If you do fall, be sure to contact your employer immediately.

China factory China Foundry Precisely Custom Machining Casting Elevator Pulley     with Free Design CustomChina factory China Foundry Precisely Custom Machining Casting Elevator Pulley     with Free Design Custom

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