Air suspension has so many benefits, it’s useless without maintenance

How Air Suspension Works What It's Made Of

The appearance of the air suspension is similar to a large leather bucket. The air spring is used as the elastic element and the air is used as the elastic medium. Compressed air is filled in the airtight container. height adjustment.

Cars equipped with air suspension are generally equipped with a control handle under the driver's seat to facilitate the driver to adjust the height. In layman's terms, air suspension is to replace the traditional leaf spring with an airbag, and the airbag is mainly composed of inner and outer rubber, cord layers and steel rings.

Although there are flaws, the advantages are still incomparable

Although the air suspension has flaws in terms of cost, reliability and durability compared with the traditional steel plate suspension, and it is also one of the most easily damaged parts in the event of an accident, it does not matter whether it is in the field of passenger cars or in the field of commercial vehicles. , the limelight of the air suspension is still gradually overshadowing the steel plate suspension. In comparison, the air suspension mainly has the following advantages:

1. The shock absorption effect is good, which can greatly reduce cargo damage

Because the air suspension utilizes the compressibility of the air, the deformation of the airbag is faster and better than that of the steel plate, which can bring a good shock absorption effect to the vehicle. In addition to greatly improving the driving comfort, it is also suitable for transporting dangerous goods or When it comes to high value-added cargo, it can significantly reduce cargo damage caused by turbulence.

2. Lighter in weight and more fuel-efficient

Lightweight is one of the major trends in the upgrading and improvement of truck products. Its benefits are that it can increase the load capacity and improve fuel economy. Light weight is a major advantage of air suspension. The relevant provisions of GB 1589 have relaxed the restrictions on the total mass and axle load of vehicles equipped with air suspension. For example, the maximum total mass limit of a three-axle vehicle is 25t, but it is equipped with The total mass limit of the air suspension is relaxed to 26t.

At the same time, when encountering bumpy road sections, vehicles equipped with air suspension can pass without deceleration or with a small deceleration, because large speed changes can be avoided, so it will be more fuel-efficient when passing bumpy road sections.

3. Protect chassis parts

Thanks to the good shock absorption effect of the air suspension, the damage caused by the vibration from the ground to the chassis components is also greatly reduced, prolonging the service life of the components, and the loosening of the screws on the chassis is also greatly reduced.

4. It is convenient for connecting and hanging, adapting to platforms of different heights

If the vehicle is equipped with an air suspension, the user can use the ECAS control handle to quickly adjust the height of the airbag, quickly realize the connection and hanging, effectively reduce the number of shaking the trailer legs, and improve work efficiency.

Trucks often need to stop on the platform to load and unload goods. The platform heights of different freight yards are often different. It will be very inconvenient to use forklifts or ground cattle to load and unload goods. For vehicles equipped with air suspension, the height of the airbag can be adjusted to keep the height of the cargo box consistent with the height of the platform, which is convenient for loading and unloading cargo.

5. Reduce tire wear and protect the road surface

Because the air suspension is a "soft connection", when the vehicle encounters a road section with poor road conditions, the tires and the ground will fit more gently, and it will not hit the ground hard like the steel plate suspension, so the air suspension can effectively reduce the pressure of the tires. At the same time, the damage of the tire to the ground will be much smaller, which can protect the road surface and reduce the maintenance cost of the road.

 Be careful when using it to avoid early "retirement"

1. The working air pressure needs to be strictly controlled

In order to avoid premature damage to the air suspension due to too low or too high air pressure, the working air pressure of the air suspension needs to be controlled within a strict range. Generally speaking, the design pressure of the air suspension is one-third of the burst pressure.

2. It is not allowed to exceed the allowable stroke during use

Each air suspension has its allowable stroke specified in the performance parameter table. In order to ensure the service life of the air suspension and avoid its early "retirement", it is not allowed to exceed the allowable stroke of the air suspension during use.

3. Strict installation and replacement adjustment

When installing the air suspension, try to avoid the offset and inclination of the center line of the air suspension, and reserve enough installation space. The air suspension should not rub or interfere with any parts during installation and use.

4. Pay attention to the use environment

During the use of the air suspension, care should be taken to keep the environment dry, cool and ventilated as much as possible, avoid exposure to the sun, and avoid contact with acids, alkalis, oils, and organic lubricants to avoid corrosion. damage.