With the prevalence of quantitative trends in recent years, air suspension has become increasingly common in freight vehicles, especially with the promotion and enforcement of relevant regulations, making air suspension a major selling point for many car companies. At the same time, compared to traditional leaf springs, air suspension does have incomparable advantages in many aspects. Although there are some flaws in strength and durability, its popularity still remains unchanged.

The air suspension is mainly composed of elastic elements, shock absorbers, and guiding mechanisms. This is similar to the traditional suspension system. The biggest difference lies in the upgrading of its elastic elements. Air springs are used as elastic elements. At the same time, electronic control functions, air pumps and other components are added, so that the suspension has the ability of active adjustment.

The advantages of air suspension mainly lie in the following points:

1. Excellent shock absorption effect

Air suspension uses compressed air as an elastic medium, which has a better isolation effect than leaf springs. It can greatly absorb bumps and impacts from the road surface, improve driving comfort, and enhance the protection ability of goods. Especially when transporting dangerous chemicals or fragile and high value-added goods, it can ensure that the height of the cargo compartment is constant as much as possible, reducing or avoiding cargo damage caused by bumps.

2. Lighter self weight

Lightweight is the most obvious advantage of air suspension, especially its lightness compared to traditional leaf spring suspension. In the current situation where traffic management departments strictly control vehicle load, a lighter self weight means that more goods can be loaded, and it can also improve fuel economy and reduce comprehensive vehicle costs.

3. Height can be freely adjusted

Air suspension can achieve the lifting and lowering of a single axle or the entire vehicle, and can lift the single axle when the vehicle is idle, further reducing tire wear and saving fuel; On the other hand, freight vehicles often need to stop in front of the cargo dock to load and unload goods. The height of the cargo dock in different yards may not be uniform. The air suspension can adjust the height of the vehicle body to match different cargo docks, making it easier to load and unload goods.

4. Reduce tire wear and tear

The connection between the air suspension and the wheels and frame is a soft connection. When the vehicle encounters poor road conditions, the adhesion between the tires and the road surface is softer, unlike the hard impact of leaf spring suspension, which is more conducive to reducing tire wear and saving the cost of tire replacement. On the other hand, air suspension not only protects the tires, but also has a certain protective effect on the road surface.

5. Protecting chassis components

This is also due to the excellent shock absorption effect of air suspension, which reduces the impact and turbulence from the road surface, greatly reduces the loosening of fasteners on the vehicle chassis, and improves the wear and tear of chassis components to a certain extent, extending their service life.

How should air suspension be maintained during use?

1. Strict control of working air pressure

In general, the design pressure of airbags is about one-third of the burst pressure. It is worth noting that whether the working air pressure is too high or too low, it can lead to premature damage to the airbag, so it is necessary to control it within a strict range during use.

2. Do not exceed the usage range

In order to ensure the service life of the air suspension, it is important to remember not to exceed the specified operating range in the performance parameter table during use.

3. Pay attention to the usage environment

Try to use the air suspension in a dry, cool, and ventilated environment, avoid exposure to sunlight and contact with acids, alkalis, oils, organic lubricants, etc., and do daily cleaning work to reduce damage to the airbag surface. When facing complex road conditions, try to slow down and avoid splashing sand and stones that may damage the airbags or precision components inside the suspension.

4. Attention when parking vehicles

When parking a vehicle equipped with air suspension, ensure that the vehicle is stationary before applying the handbrake to prevent the airbag from rebounding. In addition, try to park the car on a stable road surface, and do not park the car on rough roads or uneven areas in the front, back, left, and right. Otherwise, the force on the airbag is uneven, which can easily cause damage in the long run.

5. Daily inspection and regular maintenance

It is recommended to regularly check the pump, distribution valve, and pipeline interface for faults and hidden dangers. If there are no hidden dangers but a fault code prompt appears, a dedicated computer should be used for comprehensive troubleshooting, and the airbag should also be checked for abnormalities. If found, it is necessary to contact a professional maintenance point for repair or replacement.

The air suspension is easy to use, but it also needs to correspond to the operating conditions. If the car owner usually pulls a heavy load of goods and often runs on bumpy mountain roads or downhill roads, then do not follow the air suspension. Even if you reluctantly use it, the subsequent damage and repair frequency will also be necessary. Additionally, it is not beneficial for safety. Traditional leaf spring suspension is the first choice:

For green links, flowers, glass ceramics, electronic instruments, hazardous chemical goods, or regular transportation on highways or national highways, using air suspension is more suitable. However, it is important to choose a legitimate brand and not seek petty profits. Only by passing the quality standards of air suspension can it bring more safety and benefits.