Product Name:

Air Suspension, Air Shock Absorbers, Air Struts, Air Spring, Air bag Spring, air suspension system, Air shocker

Item name:

For Audi Q7 Front left air suspension

OEM number:

7L86~839D 7L6616039D 7L6616039 7L5616039E 7L86~839D 7L86~840D 7L6616039D 7L5616039E 7L6616040D 7L5616040E 955343571

Application

For Audi A7 4L 239D 7L86~840D 7L6616039D 7L5616039E 7L6616040D 7L5616040E 955343571

L5616403E 7L6616403B 7L86~803B Audi 7L8 616 039 Audi 7L8 616 039 A Audi 7L8 616 039 B Audi 7L8 616 039 D Audi 7L8 616 039 G Audi 7L8 616 039 H, 7L5616404E 7L6616404B 7L86~804B Audi 7L8 616 040 Audi 7L8 616 040 A Audi 7L8 616 040 B Audi 7L8 616 040 D Audi 7L8 616 040 G Audi 7L8 616 040 H, 7L6 616 039D, 7L86~839D, 7L6616039D, 7L5616039E, 7L6616039E, 7L6616039, 7L6 616 040D, 7L86~840D, 7L6616040D, 7L5616040E, 7L6616040, 955358403 7L6616403B 7L6616403 7L5616403E 7L5616403B 7L5616403 7L86~8 137L86~839A 7L86~839B 7L86~839D 7L86~839G 7L86~839H, 955358404 7L6616404B 7L6616404 7L5616404E 7L5616404B 7L5616404 7L86~8 137L86~840A 7L86~840B 7L86~840D 7L86~840G 7L86~840H

Shock absorbers and how they work:

The shock absorbers reduce and slow down the vibrations from the springs, which is why technically they are correctly referred to as vibration dampers. Vibration dampers convert kinetic energy into thermal energy through fluid friction. This involves the flow of oil being slowed down by the valve passages inside the damper.

Most air suspension systems now come with an on-board compressor. The compressor is an electric pump feeding air to the bags through a series of compressed air lines. The compressor is generally mounted on the vehicle’s frame, or in the trunk. The vast majority of compressors come with an attached drier. The compressor works by drawing outside air into the pump, compressing it and moving it to the bags. Outside air is often laden with moisture, and moisture can wreak havoc in a closed system. The drier uses a substance known as a desiccant to absorb as much moisture from the air as possible before the air is sent through the system.

Features

1.Vulcanized, heavy-duty rubber air springs at each of the vehicle’s wheels
2.An air compressor in the vehicle’s trunk or under the hood of the vehicle
3.A storage tank for compressed air, which allows you to store air at around an average of 150 PSI
4.Valve blocks which direct air to the 4 springs from the storage reservoir through a set of solenoids, valves, and o-rings
5.CZPT computer that communicates between the vehicle’s main computer to calculate where to direct air pressure
6.Air pipes connecting from the storage tank to the air springs that channel the flow of air throughout the suspension system
7.A desiccant-filled drier canister to keep the internal recesses of the system dry.

8.Front Left air suspension spring 7L86~839D for Audi Q7 is protected by an aluminum can and dust baffle to keep out debris and is assembled 9.with heavy-duty crimping rings, seals, bump stop and connector valve.

What is an air suspension struts?

Air suspension is a type of vehicle suspension powered by an electric or engine-driven air pump or compressor. This compressor pumps the air into a flexible bellows, usually made from textile-reinforced rubber. Unlike hydropneumatic suspension, which offers many similar features, air suspension does not use pressurized liquid, but pressurized air. The air pressure inflates the bellows, and raises the chassis from the axle.

As a starting point, it is important to discuss what is air suspension and how does it differ from traditional suspension systems? The main difference between a traditional shock or strut is that they have a dampening mechanism set to a certain ride control feel while an air suspension system uses an air compressor in combination with air struts and suspension air bags to control the feel of the ride.

Air suspension has several advantages over traditional shocks and struts. The first is that the ride quality is often controlled by the driver of the vehicle. Therefore, if you want a softer ride you can set your air suspension system to deliver that and vice versa if you are looking for a stiffer, rougher ride. The second advantage is that you can control ride height, some systems are advanced in that they automatically control this for you. The final advantage of an air suspension system is weight management. If you load the back of your SUV with a large amount of groceries from the store, the air suspension system either automatically adjusts to handle it or you can manually adjust it. For traditional shocks and struts the level of rebound is set and therefore no matter what the weight of your load is, you have to stick with it. This often creates a sagging rear end when carrying a heavy load.

While an air suspension system is more complex, the advantages are clear. The system is comprised of a central air suspension compressor as well as air struts within an air bag at each wheel. The air compressor pressurised the air struts as needed to control the feel. Other components can be seen in the diagram above, all of which are mainly air lines to transfer pressure and driers (filter) to complete the system.

Hot Products

Company Profile

HangZhou Xihu (West Lake) Dis. Xihu (West Lake) Dis. Auto Parts Manufacturing Co., Ltd.,The company mainly engaged inautomotive chassis components, engine accessories,spray series products. The company provide design, research and development,production, sales, for the domestic and foreign automotive assembly plant and the global after-sales market to provide high quality automotive parts. The company now provides supporting services for Mercedes Benz,Audi,BMW,Volkswagen,Por-sche,Land Rover,Bentley,Jaguaretc. Through brand positioning, the company provides high-quality original parts and cost-effective post-market brand parts for the global automotive sector.Now, it has set up agents and distributors in more than 35 countries around the world,XIHU (WEST LAKE) DIS. brand is the first batch of manufacturers approved by the Chinese ministry of commerce tomeet the export requirements.The company through the stable quality, the reliable prestigeand the customer first principle obtains the customer’s support.
Company purpose: people-oriented, customer first, integrity first! Company philosophy:mutual benefit and common developmentl Company direction: develop quality products,adhere to the brand strategy.Trust and integrity are the cornerstones of our long-lastingrelationships and is essential in fostering loyalty and teamwork. We care about our people,our customers,suppliers and communities and about creating a sustainable future together.

FAQ

Warranty:

1. 12 month warranty: If the product fails, cracks, stops working or any other problems, please contact us for a free replacement.
2. 100% quality testing before shipping, 100% money refund about damaged product and within 24h online answer.

Notice:

Please double confirm the compatibility as well as the applied OEM number before purchasing.

Instruction is not included.Professional installation is recommended.

Performance:

1. Ensuring the steering and braking functions of the vehicle and improving the safety of the vehicle.
2. To prevent the heavy vehicles from damaging other parts.

3. The off-road performance of the vehicle can be improved even in extreme weather, and the noise is low, the friction is small, and the service life is long.

Why do you need an sir suspension shock and it’s advantages.
1. Every time you add or take away weight to a vehicle, speed up or slow down, or turn left or right, this challenges what the shock absorbers and springs are capable of. Traditional stock shocks and springs are designed and installed with only a fixed set of situations in mind.
2. Air suspension systems essentially replace a vehicle’s coil springs with air springs. The air springs are simply tough rubber and plastic bags inflated to a certain pressure and height to mimic the coil springs. But the similarities end there. By adding in an on-board air compressor, sensors and electronic controls, today’s air suspension systems provide several advantages over all-metal, conventional springs, including near-instant tuning, and the ability to adapt handling to different situations and vary load capability.
3. Whether the system is manual or electronic, or installed by a weekend mechanic or a seasoned tech, air suspension can lower a car to improve its street cred, even out a heavy payload, or simply improve the ride of a vintage Detroit metal street monster.

We possess:

1. Long experience in air suspension industry;

2. Strong and reliable factory with stable supply capacity;

3. Various air suspension products, covering many car models;

4. Continuous new products development;

5. Professional sales team for every customer.

If you want long-term cooperation, you can also contact us to get our latest product catalogue and more information.

Features

One of the main benefits of air suspension cars is the improved comfort behind the wheel, making it good for daily driving. The adjustable air suspension makes for a more comfortable ride on poor quality roads and can improve control when off-roading.

Air suspension is a type of vehicle suspension powered by an electric or engine-driven air pump or compressor. This compressor pumps the air into a flexible bellows, usually made from textile-reinforced rubber. Unlike hydropneumatic suspension, which offers many similar features, air suspension does not use pressurized liquid, but pressurized air. The air pressure inflates the bellows, and raises the chassis from the axle.

Instead of the metal spring mechanism, strong rubber bags act as air containers. The bags are then connected to an air compressor and an air reservoir. The compressor does the job of inflating and deflating the bags, which is how the car gets raised and lowered. The resulting effects are a smoother ride and versatility in performance. These systems come with a control unit that’s located inside the car to give the driver complete control over the system. As this set-up is just a modification of a traditional system, changing how your car performs is just a matter of purchasing a kit.

First, struts perform a shock damping function like shock absorbers. Internally, a strut is similar to a shock absorber. A piston is attached to the end of the piston rod and works against hydraulic fluid to control spring and suspension movement.

Company Information:

For over 12 years, HangZhou Xihu (West Lake) Dis. Xihu (West Lake) Dis. Auto Parts Manufacturing Co., Ltd. has been the innovator in air suspension replacement products. Today, Xihu (West Lake) Dis. is the global industry leader in manufacturing quality aftermarket replacement air suspension products and accessories. Xihu (West Lake) Dis. nearly 20,000 square foot manufacturing plant is located in Xihu (West Lake) Dis. HangZhou ZheJiang .The bustling facility includes a brand new 500 sq. ft. Research & Development center with test equipment, multiple auto lifts, a video and photography studio, In addition, Xihu (West Lake) Dis. houses an air-conditioned production facility which includes multiple Mazak Integrex series CNC machines. The Integrex series offers the most advanced and sophisticated 5-axis CNC machines on the market, and is an integral part of Xihu (West Lake) Dis.’s unparalleled production capabilities. These impressive, fully robotic machines eliminate multiple setups, improving and ensuring part integrity and efficiency.

Advantage

1. we are top 3 of professional air suspension manufacturer in China.
2. our factory has 120 staff, and we only produce 100% newly air suspension products for 10 years.
3. we have cooperated with 80 overseas companies with stable relationships. many are also brands or big sellers at Amazon or EBAY websites.
4. we have our own cars to test our products,except normal test machine and IATF16949:2016 certificate standard.
5. we have complete production line, Mercedes Benz,BMW Audi,Land Rover,Volkswagen-these are our products,we has complete products line.
6. Our air suspension/air compressor/air strut/air suspension parts 100% NEWLY manufactured to instead OEM
7. We manufacture air suspension/air strut/air compressor to instead OEM ;
8. Constant temperature workshop for core parts;
9. Japan automatic welding machine to weld.

OEM/ODM Service:

– If you want to show your own brand LOGO on the goods such as cable, package bag, label or any where. Our OEM and ODM service is always ready to do it. Please contact with our sales team to get best support.

Packing:
– According to Standard Export Packing.
– Carton box, wooden box, wooden pallet.

Shipping:
– International express such as UPS, TNT, DHL, etc
– International air: CA, AA, EA, etc
– By sea
– Standard export sea port: Xihu (West Lake) Dis., Hongkong, Xihu (West Lake) Dis.
– Standard export airport: HangZhou, Hongkong, HangZhou

How to Repair and Maintain an Air Compressor

A compressor is a device used to move air from 1 place to another. Air enters the air compressor through the intake valve. Inside the compressor, the vanes on the inner rotor rotate within an eccentric cavity. The self-adjusting length arm divides the space into multiple cavities of different sizes. As the rotor rotates, air fills the cavity. As air flows around the cavity, it builds pressure and is squeezed out of the compressor output.

Positive displacement

Positive displacement air compressors use reciprocating pistons to compress air. Gas is drawn in during the suction stroke and compressed by moving the piston in the opposite direction. It then discharges the compressed air by moving it in the opposite direction. This type of air compressor is most commonly found in automobiles, refrigerators, and other applications that require high pressure. However, it is not as efficient as a centrifugal compressor.
Most modern air compressors use positive displacement. Positive displacement models capture a volume of air in the compression chamber and distribute it when the pump is operating at maximum capacity. They are more economical than their negative displacement counterparts. Reciprocating screw air compressors are the most common positive displacement compressors. The reciprocating screw air compressor adopts a water jacket around the cylinder and is often used in processes such as oil drilling.
A bicycle pump is an example of positive displacement compression. Air is drawn into the cylinder and compressed by the moving piston. A piston compressor works on the same principle, but it uses a rotating crankshaft or connecting rod to complete the movement of the pistons. There are 2 types of positive displacement compressors: single-acting and double-acting. Both types work on the same principle, both are positive displacement compressors. The difference between the 2 types is the pressure ratio.
In air compression, positive displacement compression reduces the volume of the fluid and reduces its viscosity. This results in higher pressure ratios and is used in centrifugal, axial, and scroll compressors. Positive displacement is a common feature of most air compressors. Positive displacement compressors offer the same benefits and are more energy-efficient when applied to oil-free and gas applications. This type of compression is usually the best choice for low-pressure applications.

oil free

If you’re looking for an air compressor for your business, consider an oil-free air compressor. These models offer cleaner, quieter operation than traditional air compressors and require less maintenance. They also meet ISO Class 0 or Class 1 air purity requirements. Oil-free air compressors are also quieter, with fewer moving parts and less noise. These advantages make oil-free air compressors an ideal solution for many commercial applications.
Air purity is critical in many industries. Even the tiniest drop of oil can damage production equipment or damage products. The best way to find an oil-free air compressor for your business is to consider the process and end product. As air quality improves, more and more businesses are turning to oil-free compressors. Some of the advantages and disadvantages of these air compressors are:
When choosing an oil-free air compressor, it is important to understand the terminology used in the industry. Knowing these terms will make it easier for you to choose the right compressor for your needs. ACTFM, or actual cubic feet per minute, is an industry term for measuring the amount of air pumped in 1 minute under rated conditions. Although a simple number, it can be very useful in determining which type of air compressor is best for your application.
The ISO 8573-1 international standard defines air quality and provides air purity classifications. The strictest classification is air purity class 0. Many manufacturers claim that oil-free air compressors meet this standard. However, a class 0 oil-free air compressor does not necessarily mean that the air is free of contaminants. In fact, Class 0 is the benchmark for air purity. While zero air quality is the highest level, that doesn’t mean it’s completely oil-free.

double acting

A double-acting air compressor is a device that uses compressed air to generate electricity. Its working principle is based on piston and connecting rod. The connecting rod connects the crankshaft to the piston through pins and caps. The piston moves as the piston moves. Rods are usually made of forged carbon steel. In terms of service and maintenance, double-acting compressors require regular vise maintenance and proper cleaning.
The displacement of the compressor is a measure of the displacement that the piston can produce in a certain period of time. Displacement is usually expressed in actual cubic feet per minute. The exact calculation depends on the type of cylinder and the configuration of the compressor. Single-acting cylinders can have head-end or crank-end displacement, both of which can be measured using the displacement equation. A double-acting air compressor will use this equation. 4 and 6 calculate the displacement.
Double-acting air compressors have multiple cylinders and are made of cast iron. They are water-cooled and have a mechanical connection between the piston and connecting rod. A double-acting compressor compresses air twice per revolution of the motor. One cylinder moves up, while the other cylinder moves down. The piston moves down, allowing air to enter through valve #1. During the operation of the compressor, the temperature of the air and gas increases.
Double-acting air compressors typically have high pressure and are considered workhorses. Double-acting compressors also feature intercooling and double compression. As a result, these machines tend to last longer than single-acting compressors. Its low speed and dual compression make it a workhorse in the compressor industry. Double-acting air compressors are workhorses and versatile devices.

fuel tank pressure switch

You can adjust the pressure in the air compressor tank by adjusting the differential pressure. You can turn the mainspring clockwise or counterclockwise to increase or decrease the pressure. This valve will open when the pressure is low enough to start the compressor. If the pressure is too low, the valve should be closed. The cut-in and cut-out pressures should be set to appropriate values. After adjusting the tank pressure, check the hysteresis of the tank pressure switch and set the desired shutoff pressure.
If the pressure in the tank falls below the cut-in level, the tank pressure switch must be replaced. You can test the switch with a multimeter. Make sure the switch is not damaged. If you can’t find the switch, you can look at the other sections. If you find any damaged or missing parts, you should replace them. Otherwise, it may be time to check the tank pressure switch. You may need to disassemble the compressor and remove the switch.
The fuel tank pressure switch is an important part of the air compressor. It keeps you informed of the amount of air delivered by the compressor. If your tank or tank is damaged, your readings will be wrong. If the pressure switch is damaged, it will not function properly and result in incorrect readings. Fortunately, there are some easy ways to fix this. To prevent this from happening, keep the tank pressure switch in good condition.
When the air pressure in the tank drops to the cut-in pressure setting, the switch allows power to flow through it. This will start the motor and pump of the air compressor. Then, if the pressure in the tank rises above the cut-off level, the switch will trip and stop the compressor. This will prevent it from being over-pressurized. Power flow will continue to flow to the motor. Depending on your compressor model, you can change the cut-in and cut-out pressures as needed.

energy source

The power supply of the air compressor is very important. Most air compressors run on 12 VDC, which is ideal for automotive use. Alternatively, you can buy a switching power supply for around $20. No matter which power supply you choose, you must ensure that it can support the maximum current of the compressor. You can find power supplies in all sizes, from quarter-horsepower to five-horsepower.
The voltage required for a three-phase air compressor will vary. Three-phase air compressors require 3 separate power cords and a three-phase electrical service panel. This is because a standard 120/240-volt electrical service panel is not sufficient to power a three-phase compressor. Additionally, three-phase compressors require 3 separate isolated wires for the engine and motor circuits. Three-phase compressors do not require a neutral wire.