Solution Description

AT industry is 1 supplier  with more than thirteen several years experience on forging parts,Brass Parts,Car Elements,Machining Components

 
1.customized cnc machining part 
two.OEM & ODM by buyer design 
three. Excellent look working 
four. Complex CNC Elements
 
one.OEM & ODM by customer layout
2.Solution image revealed right here just for reference, we never ever market them to other customers
three.Custom made-produced according to customer’s drawings
four. Manufacturing facility custom made manufacture hight precision turning part
 

 
 

 
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 
layout 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

one. Exactly where is your spot?

We are located in HangZhou Metropolis of China and are shut to Airport. It takes 30minuts by car from Liuting Airport our business.

2. How long has the firm been recognized?

AT Business was proven in 2009. There is 6 several years exporting experiences.

3. How many employees do you have?

Administration / sales    four
Engineering / design as our partner     eight
Production as our companions a hundred and twenty
Good quality assurance / inspection   10

4. Which nations around the world do you export to?

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

5. What proportion of your goods are exported?

a hundred% of our manufacturing are exported to all above the entire world.

six. How prolonged does it consider to receive samples?

a) Sample:30-45days right after order 
b) Sample:30days right after pattern finishing.
c) The direct time is the basic manufacturing interval and does not consist of the transportation time.

7. New solution growth approach

Obtained tooling purchase and sample get with fifty% deposit—Maintain a conference with the relation dept. to guarantee the establishing plan—Style pattern, fixture and gauge and making them in our residence—mildew metal buying—Machining—Inspection—Ship out the sample with first inspection report.

8. How prolonged is the manufacturing guide time?

Mass Creation: 90days after sample approval by yours.
The guide time is the common creation period including the transportation time.
We could make some specific creation arrangement properly if consumer has urgent need.

9. What basis can we acquire goods?

We typically provide clients prices FOB& CIF (Carriage, Insurance policy & Freight). The CIF includes the freight price to your nominated sea port.
We do give clearance of items which wants to be handled by a regional freight forwarder.
All local charges and taxes are the responsibility of the purchaser. We are pleased to provide advisement on shipping if required. 

ten. What are the payment conditions?

Payment terms are negotiable and will increase for long time period customers.
For the duration of the initial levels, we request fifty% of tooling fee in progress with the stability payable on acceptance of samples.
Production orders can be negotiable. We favor fifty% deposit and the balance by T/T just before sails. But occasionally T/T 30 days soon after sails would also acceptable. 

11. Which currency can we purchase in?

We can offer in USD / Euro currency / GBP.

12. How extended does it get to ship items from China by sea?

It will take about 5 months to European ports in addition 1 7 days customs clearance, so you can get the container in 6 to 7 months. It requires about 2 weeks to east coast and 3 weeks to west coast US ports. All sea products are transported from HangZhou Port. 

13. How extended does it consider to ship goods from China by air?

It takes about 7 days to all significant locations. 

14. Can we pay a visit to the manufacturing unit to conduct an audit?

Yes, you are welcome to go to our spouse factory by prior agreement. 

15. How do we keep customer confidentiality?

We are satisfied to signal Confidentiality Agreements with consumers and will honor them.

sixteen. Which languages do we do organization in?

Though we do organization with a lot of nations about the globe, we can only communicate efficiently in Chinese English.
All data equipped ought to as a result be supplied in this type. 

seventeen. Is there a least quantity of enterprise necessary to conduct intercontinental buying?

There are no minimum volumes, but the charges of the goods, in addition the fastened fees of importing tends to make it much more inexpensive to purchase in higher volumes. All likely consumers will be assessed on an individual foundation to determine if it seems a viable selection for all functions to develop a connection. 

18. What type of parts you are specialised in?

Our business is made up of 2 regions, 
1 is for development precast such as lifting program, rigging hardware metallic elements. 
 
Yet another is customized metal organization of quality sand castings, investment castings, lost foam castings, hot forgings, cold forgings, stampings, machined parts, injectionmolded plastics parts, etc. 

19. Which type 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 centre
Unexciting machine
Drilling machine

 

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

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

Types of vacuum pumps

A vacuum pump is a device that draws gas molecules from a sealed volume and leaves a partial vacuum in its wake. Its job is to create a relative vacuum within a specific volume or volume. There are many types of vacuum pumps, including centrifugal, screw and diaphragm.

Forward centrifugal pump

Positive displacement centrifugal vacuum pumps are one of the most commonly used pump types in the oil and gas industry. Their efficiency is limited to a range of materials and can handle relatively high solids concentrations. However, using these pumps has some advantages over other types of pumps.
Positive displacement pumps have an enlarged cavity on the suction side and a reduced cavity on the discharge side. This makes them ideal for applications involving high viscosity fluids and high pressures. Their design makes it possible to precisely measure and control the amount of liquid pumped. Positive displacement pumps are also ideal for applications requiring precise metering.
Positive displacement pumps are superior to centrifugal pumps in several ways. They can handle higher viscosity materials than centrifuges. These pumps also operate at lower speeds than centrifugal pumps, which makes them more suitable for certain applications. Positive displacement pumps are also less prone to wear.
Positive displacement vacuum pumps operate by drawing fluid into a chamber and expanding it to a larger volume, then venting it to the atmosphere. This process happens several times per second. When maximum expansion is reached, the intake valve closes, the exhaust valve opens, and fluid is ejected. Positive displacement vacuum pumps are highly efficient and commonly used in many industries.

Self-priming centrifugal pump

Self-priming centrifugal pumps are designed with a water reservoir to help remove air from the pump. This water is then recirculated throughout the pump, allowing the pump to run without air. The water reservoir can be located above or in front of the impeller. The pump can then reserve water for the initial start.
The casing of the pump contains an increasingly larger channel forming a cavity retainer and semi-double volute. When water enters the pump through channel A, it flows back to the impeller through channels B-C. When the pump is started a second time, the water in the pump body will be recirculated back through the impeller. This recycling process happens automatically.
These pumps are available in a variety of models and materials. They feature special stainless steel castings that are corrosion and wear-resistant. They can be used in high-pressure applications and their design eliminates the need for inlet check valves and intermediate valves. They can also be equipped with long intake pipes, which do not require activation.
Self-priming centrifugal pumps are designed to run on their own, but there are some limitations. They cannot operate without a liquid source. A foot valve or external liquid source can help you start the self-priming pump.

Screw Pump

The mechanical and thermal characteristics of a screw vacuum pump are critical to its operation. They feature a small gap between the rotor and stator to minimize backflow and thermal growth. Temperature is a key factor in their performance, so they have an internal cooling system that uses water that circulates through the pump’s stator channels. The pump is equipped with a thermostatically controlled valve to regulate the water flow. Also includes a thermostatic switch for thermal control.
Screw vacuum pumps work by trapping gas in the space between the rotor and the housing. The gas is then moved to the exhaust port, where it is expelled at atmospheric pressure. The tapered discharge end of the screw further reduces the volume of gas trapped in the chamber. These two factors allow the pump to work efficiently and safely.
Screw vacuum pumps are designed for a variety of applications. In some applications, the pump needs to operate at very low pressures, such as when pumping large volumes of air. For this application, the SCREWLINE SP pump is ideal. Their low discharge temperature and direct pumping path ensure industrial process uptime. These pumps also feature non-contact shaft seals to reduce mechanical wear. Additionally, they feature a special cantilever bearing arrangement to eliminate potential sources of bearing failure and lubrication contamination.
Screw vacuum pumps use an air-cooled screw to generate a vacuum. They are compact, and clean, and have a remote monitoring system with built-in intelligence. By using the app, users can monitor pump performance remotely.

Diaphragm Pump

Diaphragm vacuum pumps are one of the most common types of vacuum pumps found in laboratories and manufacturing facilities. The diaphragm is an elastomeric membrane held in place around the outer diameter. While it is not possible to seal a diaphragm vacuum pump, there are ways to alleviate the problems associated with this design.
Diaphragm vacuum pumps are versatile and can be used in a variety of clean vacuum applications. These pumps are commercially available with a built-in valve system, but they can also be modified to include one. Because diaphragm pumps are so versatile, it’s important to choose the right type for the job. Understanding how pumps work will help you match the right pump to the right application.
Diaphragm vacuum pumps offer a wide range of advantages, including an extremely long service life. Most diaphragm pumps can last up to ten thousand hours. However, they may be inefficient for processes that require deep vacuum, in which case alternative technologies may be required. Additionally, due to the physics of diaphragm pumps, the size of these pumps may be limited. Also, they are not suitable for high-speed pumping.
Diaphragm vacuum pumps are a versatile subset of laboratory pumps. They are popular for their oil-free construction and low maintenance operation. They are available in a variety of styles and have many optional features. In addition to low maintenance operation, they are chemically resistant and can be used with a variety of sample types. However, diaphragm pumps tend to have lower displacements than other vacuum pumps.

Atmospheric pressure is a key factor in a vacuum pump system

Atmospheric pressure is the pressure created by the collision of air molecules. The more they collide, the greater the pressure. This applies to pure gases and mixtures. When you measure atmospheric pressure, the pressure gauge reads about 14.7 psia. The higher the pressure, the greater the force on the gas molecules.
The gas entering the vacuum pump system is below atmospheric pressure and may contain entrained liquids. The mechanism of this process can be explained by molecular kinetic energy theory. The theory assumes that gas molecules in the atmosphere have high velocities. The resulting gas molecules will then start moving in random directions, colliding with each other and creating pressure on the walls of the vacuum vessel.
Atmospheric pressure is a critical factor in a vacuum pump system. A vacuum pump system is useless without proper atmospheric pressure measurement. The pressure in the atmosphere is the total pressure of all gases, including nitrogen and oxygen. Using total pressure instead of partial pressure can cause problems. The thermal conductivity of various gases varies widely, so working at full pressure can be dangerous.
When choosing a vacuum pump, consider its operating range. Some pumps operate at low atmospheric pressure, while others are designed to operate at high or ultra-high pressure. Different types of pumps employ different technologies that enhance their unique advantages.

The screw pump is less efficient in pumping gases with smaller molecular weight

Vacuuming requires a high-quality pump. This type of pump must be able to pump gas of high purity and very low pressure. Screw pumps can be used in laboratory applications and are more efficient when pumping small molecular weight gases. Chemical resistance is critical to pump life. Chemical resistant materials are also available. Chemically resistant wetted materials minimize wear.
Gear pumps are more efficient than screw pumps, but are less efficient when pumping lower molecular weight gases. Gear pumps also require a larger motor to achieve the same pumping capacity. Compared to gear pumps, progressive cavity pumps also have lower noise levels and longer service life. In addition, gear pumps have a large footprint and are not suitable for tight spaces.
Progressive cavity pumps have two or three screws and a housing and side cover. They are also equipped with gears and bearings. Their mechanical design allows them to operate in high pressure environments with extremely low noise. The progressive cavity pump is a versatile pump that can be used in a variety of applications.
Dry screw compressors have different aspect ratios and can operate at high and low pressures. The maximum allowable differential pressure for screw compressors ranges from 0.4 MPa for 3/5 rotors to 1.5 MPa for 4/6 rotors. These numbers need to be determined on a case-by-case basis.