The air spring is mainly composed of a rubber bag and air.Its principle is very simple, in a sealed container filled with compressed air, using the compressibility of the gas to achieve its elastic effect. This spring has a very good nonlinear elastic characteristics, adding height adjustment device, the body height will not change with the increase and decrease of the load.In other words, the air spring design is lower, ride comfort will be better.But now we see the air spring, the structure is more complex, the manufacturing cost is higher.

Its first feature is very good sound insulation because it can absorb high-frequency vibration. In the process of vibration, the rubber bag due to the characteristics of expansion and warping, resulting in it has a very small internal friction, so the transmission force of high-frequency vibration is small. With rubber and air, it is not easy to transmit sound, so the air spring has a very good sound insulation performance. If it is other steel springs, easy to carry out the transmission of high-frequency vibration, but also easy to transmit the sound out.

The second characteristic of the air spring is that as long as the total volume of the air spring increases, the natural frequency of the vibration isolation system will be reduced, which is a very special advantage of the air spring.You know, the original volume air spring, due to the size of the structure of the space problem, is subject to certain restrictions, it is difficult to is too big, but in order to reduce the natural frequency of vibration isolation system can set the auxiliary air chamber, the air chamber can be placed on the comparison, thus increasing the total volume of the air spring, eventually reduce the natural frequency of vibration isolation system.