Pneumatic jacks are commonly used for car maintenance, mainly for car jacking operations. The working principle of pneumatic jack includes air supply, cylinder and piston, air control valve, etc; The structural features include an internal stable cylinder, dual safety valves, and a split structure.

The structure of the pneumatic jack is equipped with a stabilizing cylinder to prevent the jack from swinging as much as possible during use. Adopting a dual safety valve design can effectively prevent excessive expansion and uncontrolled deflation. The pneumatic jack component and the air pump component are of a separate structure, connected by a valve plate and a single air pipe bolt.

Pneumatic jacks have been widely used in industrial and maintenance fields due to their unique working principles and structural characteristics. It utilizes compressed air drive, cylinder and piston structure, and a simple control method, making it easy to operate and safe and reliable.