What does a double acting actuator do in a pneumatic system?

In a pneumatic system, a double acting actuator functions by utilizing air pressure to move the actuator in both directions—both extending and retracting. This design allows the actuator to be more versatile compared to a single-acting actuator, which typically moves in only one direction and returns to its original position via a spring or another external force.

The mechanism of a double acting actuator involves air entering two different ports, allowing for controlled movement. When air is supplied to one side of the piston, it extends; when air is supplied to the other side, it retracts. This capability is essential in many applications where precision control of both extension and retraction is necessary, such as in automation and robotic systems.

This dual movement capability makes the double acting actuator ideal for jobs requiring significant force in both directions, improving overall efficiency and functionality in pneumatic processes.