The linearity of the coil spring is determined by the material characteristics and manufacturing process, while the linearity of the air spring is determined by the volume of the air chamber and the structural design of the air chamber.
Single positive air chamber structure
Generally, the linearity of the single main air chamber structure is determined by the size and volume of the positive and negative air chambers. After the preload is set, the linearity of the initial and middle strokes is basically fixed, but only the bottoming force of the final stroke The air chamber block can be used for fine adjustment. When the stroke is consumed too fast, you can increase the air chamber cushion; when the end of the stroke is too strong, you can reduce the cushion as appropriate, and finally get a compromise.