Can Pneumatic Actuators Only Move in A Straight Line?

Pneumatic actuators can generally only move in a straight line. The working principle is that when compressed air enters the pneumatic actuator, the gas pushes the double pistons to move in a straight line at both ends, and the rack on the piston drives the gear on the rotating shaft to rotate 90 degrees counterclockwise, and the valve is opened; conversely, when compressed air enters both ends of the pneumatic actuator, the gas pushes the double pistons to move in a straight line in the middle, and the rack on the piston drives the gear on the rotating shaft to rotate 90 degrees clockwise, and the valve is closed.
Pneumatic actuator
Pneumatic actuators are currently widely used in various automation industries, and are also widely used in harsh working environments such as flammable, explosive, dusty, strong magnetic, radiation and vibration. Compared with electric actuators, it has the following main characteristics:
1. Large load, can adapt to high torque output applications.
2. Quick action and fast response.
3. Good adaptability to the working environment, especially in harsh working environments such as flammable, explosive, dusty, strong magnetic, radiation and vibration, it is better than using hydraulic, electronic and electrical control.