Air spring is an advanced product of the automotive industry, which is much more practical than steel springs. The air spring contains an air valve and its location is between the car body and the tires. This part absorbs the vibrations of the truck or trailer wheel by compressing the air. The use of air spring in new trucks and trailers usually has one air bag installed on each side.
The important thing is that if your trailer is empty. You can use the ability to raise the axles to reduce the use of tires. Also, the possibility of changing the height of the bus by using an air spring in its suspension system has taken a huge step towards increasing the comfort of passengers.
