Your Title Goes Here

Product Description

AT industry is 1 supplier  with more than 13 years experience on forging parts,Brass Parts,Auto Parts,Machining Parts

 
1.customized cnc machining part 
2.OEM & ODM by customer design 
3. Good appearance working 
4. Complex CNC Parts
 
1.OEM & ODM by customer design
2.Product picture shown here just for reference, we never sell them to other customers
3.Custom-made according to customer’s drawings
4. Factory custom manufacture hight precision turning part
 

 
 

Material  Steel, Zinc, Alunumin, Brass.Stainless steel.
Surface treatment Nickel plating. Zinc plating, Chrome plating, Oxidation. Anodization
Tolerance +/-0.01mm or +/- 0.0004″
Thread Standard NPT,BSP(G),M, GHT,UN,NPSM,BSPT(Tr),NPTF…    
Quality control 100% inspection on critical dimensions
Inspection equipment Three axis meansuring machine for X.Y.Z. Projection meter.
Production output 100000.000 pieces/ month
Productin range Part ID from 2-500mm with tolerance +/-0.01mm                                     
Experience 12 years of professional  OEM service
Supply chain process PPAP
Ability To develop hundreds of new parts annually.                               
 Packaging  Standard export carton with palletized
 Lead time 35 days regularly 
 Term of Payment  T/T. L/C or Customer’s request

 
ABOUT US:

A&T Industry is a contract manufacture and exporter of quality sand castings,
investment castings, lost foam castings, hot forgings, cold forgings, stampings, 
machined parts, injectionmolded plastics parts, etc.

We are a dedicated team of customer focused industry professionals with 
extensive experience in manufacturing,  materials engineering, 
quality assurance, logistics management  and inventory control.

We utilize our experience and sources advantage to provide our customers 
with cost effective and value based solutions to meet their engineering and 
design needs while exceeding their quality and procurement requirements.

A&T Industry is located in HangZhou, a major seaport, Olympic Host City and 
industrial center of China. 

Assurance,

 100% quality manufacturing.
 We guarantee that our products meet your supplied specifications
 Extremely competitive pricing
 Delivery to your port or front door
 4 —- 8 week lead times
 We handle all paperwork
 Partial container orders
 Flexible payment options
 Unique tooling options
 Full range of packaging options from bulk to retail ready
 Complete testing services available

FAQs

1. Where is your location?

We are located in HangZhou City of China and are closed to Airport. It takes 30minuts by car from Liuting Airport our company.

2. How long has the company been established?

AT INDUSTRY was established in 2009. There is 6 years exporting experiences.

3. How many employees do you have?

Administration / sales    4
Engineering / design as our partner     8
Production as our partners 120
Quality assurance / inspection   10

4. Which countries do you export to?

U.S.A, Germany, France, Italy, UK, Brazil, Middle east of Asia, Thailand, 

5. What proportion of your goods are exported?

100% of our production are exported to all over the world.

6. How long does it take to receive samples?

a) Pattern:30-45days after order 
b) Sample:30days after pattern finishing.
c) The lead time is the general production period and does not include the transportation time.

7. New product development process

Got tooling order and sample order with 50% deposit—Hold a meeting with the relation dept. to ensure the developing schedule—Design pattern, fixture and gauge and making them in our house—mold steel buying—Machining—Inspection—Send out the sample with initial inspection report.

8. How long is the manufacturing lead time?

Mass Production: 90days after sample approval by yours.
The lead time is the general production period including the transportation time.
We could make some special production arrangement effectively if customer has urgent need.

9. What basis can we buy goods?

We generally offer customers prices FOB& CIF (Carriage, Insurance & Freight). The CIF includes the freight cost to your nominated sea port.
We do provide clearance of goods which needs to be handled by a local freight forwarder.
All local costs and taxes are the responsibility of the buyer. We are happy to offer advisement on shipping if required. 

10. What are the payment terms?

Payment terms are negotiable and will improve for long term customers.
During the initial stages, we request 50% of tooling fee in advance with the balance payable on acceptance of samples.
Production orders can be negotiable. We prefer 50% deposit and the balance by T/T before sails. But sometimes T/T 30 days after sails would also acceptable. 

11. Which currency can we buy in?

We can deal in USD / Euro currency / GBP.

12. How long does it take to ship goods from China by sea?

It takes about 5 weeks to European ports plus 1 week customs clearance, so you can get the container within 6 to 7 weeks. It takes about 2 weeks to east coast and 3 weeks to west coast US ports. All sea goods are shipped from HangZhou Port. 

13. How long does it take to ship goods from China by air?

It takes about 7 days to all major destinations. 

14. Can we visit the factory to conduct an audit?

Yes, you are welcome to visit our partner factory by prior agreement. 

15. How do we retain client confidentiality?

We are happy to sign Confidentiality Agreements with customers and will honor them.

16. Which languages do we do business in?

Although we do business with many countries around the world, we can only communicate effectively in Chinese English.
All information supplied should therefore be supplied in this form. 

17. Is there a minimum volume of business required to conduct international purchasing?

There are no minimum volumes, but the prices of the goods, plus the fixed costs of importing makes it more economical to buy in high volumes. All potential customers will be assessed on an individual basis to determine if it appears a viable option for all parties to develop a relationship. 

18. What type of parts you are specialized in?

Our business contains 2 areas, 
one is for construction precast including lifting system, rigging hardware metal parts. 
 
Another is customized metal business of quality sand castings, investment castings, lost foam castings, hot forgings, cold forgings, stampings, machined parts, injectionmolded plastics parts, etc. 

19. Which kind of equipments do you have?

Forging friction press 160Ton, 300Ton, 630Ton, 1200Ton
Casting CZPT of 200kg, 500kg,1000kgs, 2000kgs
Press of 63ton, 120tons
CNC Machining center
CNC Vertical Lathe
CNC Lathe center
Boring machine
Drilling machine

 

Calculate the ideal mechanical advantage of pulleys

The basic equations for pulleys can be found in this article. It will also cover the different types of pulleys, the ideal mechanical advantages of pulleys, and some common uses of pulley systems. Read on to learn more! After all, a pulley is a simple mechanical device that changes the direction of a force. Learn more about pulleys and their common uses in engineering.
pulley

pulley basic equation

Pulleys work the same way as gravity, so they should withstand similar forces. Newton’s laws of motion can be used to calculate the forces in a pulley system. The second law of motion applies to forces and accelerations. Similar to this is Newton’s third law, which states that the directions of forces are equal and opposite. The fourth law dictates the direction of force. The Fifth Law states that tension is in equilibrium with gravity.
A pulley is a simple mechanism that transmits force by changing direction. They are generally considered to have negligible mass and friction, but this is only an approximation. Pulleys have different uses, from sailboats to farms and large construction cranes. In fact, they are the most versatile mechanisms in any system. Some of their most common applications and equations are listed below.
For example, consider 2 masses m. Those of mass m will be connected by pulleys. The static friction coefficient of the left stop is ms1, and the static friction coefficient of the right stop is ms2. A no-slip equation will contain multiple inequalities. If the 2 blocks are considered to be connected by a pulley, the coefficient of kinetic friction is mk. In other words, the weight of each block carries the same mass, but in the opposite direction.

Types of pulleys

A pulley is a device used to pull and push objects. Pulley systems are ropes, cables, belts or chains. The “drive pulley” is attached to the shaft and moves the driven pulley. They are available in a variety of sizes, and the larger they are, the higher the speed of power transmission. Alternatively, use small pulleys for smaller applications.
Two-wheel pulleys have 2 mechanical advantages. The greater the mechanical advantage, the less force is required to move the object. More wheels lift more weight, but smaller pulleys require less force. In a two-wheel pulley system, the rope is wound around 2 axles and a fixed surface. As you pull on the rope, the shafts above slowly come together.
Compound pulleys have 2 or more rope segments that are pulled up on the load. The mechanical advantage of compound pulleys depends on the number of rope segments and how they are arranged. This type of pulley can increase the force by changing the direction of the rope segment. There are 2 main types of pulleys. Composite pulleys are most commonly used in construction. The ideal mechanical advantage of pulleys is 2 or more.
Construction pulleys are a basic type. They are usually attached to wheel rails and can be lifted to great heights. Combinations of axes are also common. Construction pulleys can be raised to great heights to access materials or equipment. When used in construction, these pulleys are usually made of heavy materials such as wood or metal. They are secured with ropes or chains.

The ideal mechanical advantage of pulleys

The pulley system is a highly complex system with high mechanical advantages. Use a single pulley system to reduce the force required to lift an object by cutting it in half. The mechanical advantage increases as you add more pulleys, such as 6 or seven. To calculate the mechanical advantage of a pulley system, you need to count the number of rope segments between the pulleys. If the free end of the rope is facing down, don’t count it. If it’s facing up, count. Once you have your number, add it up.
The required mechanical advantage of a pulley is the number of rope segments it has to pull the load. The more rope segments, the lower the force. Therefore, the more rope segments the pulley has, the lower the force. If the rope segments are four, then the ideal mechanical advantage is four. In this case, the composite pulley quadrupled the load force.
The ideal mechanical advantage of a pulley system is the sum of the mechanical force and the force required to lift the load at its output. Typically, a single pulley system uses 2 ropes, and the mechanical force required to lift the load is multiplied by the 2 ropes. For a multi-pulley system, the number of ropes will vary, but the total energy requirement will remain the same. The friction between the rope and pulley increases the force and energy required to lift the load, so the mechanical advantage diminishes over time.
pulley

Common uses of pulley systems

A pulley system is a simple mechanical device typically used to lift heavy objects. It consists of a rotating wheel attached to a fixed shaft and a rope attached to it. When the wheel moves, the force applied by the operator is multiplied by the speed of the pulley, and the force is multiplied by the weight of the object being lifted. Common uses for pulley systems include pulling, lifting, and moving heavy objects.
The oil and petroleum industries use pulley systems in a variety of applications. Most commonly, pulleys are used in drilling operations and they are installed on top of the rig to guide the cable. The cable itself is attached to 2 pulleys suspended in the derrick, where they provide mechanical energy to the cable. Using a pulley system in this application provides the force needed to move the cable safely and smoothly.
The main advantage of the pulley system is that it minimizes the force required to lift an object. The force used to lift the object is multiplied by the desired mechanical advantage. The more rope segments, the lower the force required. On the other hand, a compound pulley system can have many segments. Therefore, a compound pulley system can increase the force a worker can exert on an object.
Safety Precautions to Take When Working on Pulley Systems

There are many safety precautions that should be observed when working on a pulley system. The first is to wear proper protective gear. This includes hard hats that protect you from falling objects. Also, gloves may be required. You should limit the amount of movement in the penalty area, and you should also keep the area free of unnecessary people and objects. Also, remember to wear a hard hat when working on the pulley system.
Another important safety precaution when working on a pulley system is to check the Safe Working Load (SWL) of the pulley before attaching anything. This will help you understand the maximum weight the pulley can hold. Also, consider the angle and height of the pulley system. Always use safety anchors and always remember to wear a hat when working on a pulley system.
Safe use of chain hoists requires training and experience. It is important to read the manufacturer’s manual and follow all safety precautions. If you’re not sure, you can actually inspect the hoist and look for signs of damage or tampering. Look for certifications for sprocket sets and other lifting accessories. Look for the Safe Working Load (SWL) marking on the chain hoist.
pulley

Example of a pulley system

Pulley systems are often used to lift items. It allows you to reduce the effort to lift and move the load by applying force in 1 direction. Pulley systems can be built and modeled to fit any type of project. This resource focuses on pulley systems and is designed to support the new GCSEs in Engineering, Design and Technology. There are also many examples of pulley systems suitable for various applications.
In the study, participants who read easy text took longer to manipulate the pulley system than those who read challenging text. In general, this suggests that participants with prior scientific experience used their cognitive abilities more effectively. Additionally, students who read simple texts spent less time planning the pulley system and more time on other tasks. However, the study did show that the time required to plan the pulley system was similar between the 2 groups.
In everyday life, pulley systems are used to lift various objects. Flagpoles are 1 of many pulley systems used to raise and lower flagpoles. They can also be used to raise and lower garage doors. Likewise, rock climbers use pulleys to help them ascend and descend. The pulley system can also be used to extend the ladder.

China wholesaler Tensioner Pulley for Audi V6 046115136 / 077115136A for V. W. V/Skoda/Seat     with Hot sellingChina wholesaler Tensioner Pulley for Audi V6 046115136 / 077115136A for V. W. V/Skoda/Seat     with Hot selling

Recent Posts