Double Acting Scotch Yoke Pneumatic Actuator OEM ODM Customized

What is Double Acting Pneumatic Actuator?

Double-acting pneumatic actuator cylinders are equipped with inlet ports at both ends, through the external reversing valve alternately to the two chambers of the compressed gas input: a cavity inflatable pressure, the other cavity exhaust pressure relief, the formation of bidirectional pressure difference, to promote the piston back and forth movement.
Compared with the single-acting actuator (relying on spring reset), its advantage lies in the bidirectional controllable force, higher movement speed and reliability, and no spring fatigue problem, suitable for the need for accurate bidirectional control or high-frequency cycling scenarios, such as the industrial valve opening and closing, robotic arm clamping and so on.

Double Acting Pneumatic Actuator Working Principle

1. Bidirectional pneumatic drive
 Both ends of the cylinder are connected to the compressed gas, through the reversing valve to switch the direction of the gas circuit, alternately supplying gas to the two chambers and exhausting the gas synchronously, using the pressure difference to realize the piston bi-directional movement.
2. No spring forced reset 
   The piston round trip is completely controlled by air pressure without spring assisted reset, avoiding the performance degradation caused by spring fatigue and enhancing long-term reliability.  
3. Independent thrust adjustment
   The air pressure in both chambers can be adjusted independently, allowing different thrust outputs in push and return, which is suitable for load changes.