The railway field has extremely high requirements for reliability and safety. Pneumatic components are adapted to complex outdoor environments (high and low temperatures, wind and sand, vibration), and play a key role in train operation and track maintenance. The train braking system is a core application scenario. Pneumatic components serve as the control unit, transmitting signals through compressed air to achieve precise charging and venting of the brake cylinder, adapting to braking requirements of different speeds and loads. The braking response is rapid and the force is uniform, which is a core link to ensure train operation safety. In the bus door system, the cylinder drives the door to open and close smoothly, and the limit switch precisely controls the opening and closing amplitude and speed, taking into account both passenger convenience and safety. In terms of track operation and maintenance, pneumatic tools (pneumatic wrenches, grinders) provide efficient power for the tightening of bogie bolts and the disassembly of track components, making them suitable for field operations without power sources. In track tamping machines and grinding equipment, pneumatic motors provide stable torque to ensure the smoothness and stability of the tracks. In addition, in the railway signal system, pneumatic actuators control turnout switching to achieve precise track changes for trains. Their anti-interference and low failure rate characteristics ensure efficient and orderly railway transportation, providing comprehensive power and control support for the safe operation of trains and track maintenance.