It is used by preferring to prevent the cargo loaded and to provide the driving safety by preventing the negative effects like shaking, tilting, jumping, and outing to be arisen due to the structure of the road. In addition to this, it is proven that the air suspension bellows protect the vehicle and load better than steel leaf spring systems.

In general, there are two air springs at each axle, while there is generally a lifting bellows to protect the tires when the vehicle is idle.