Single Acting Cylinder in Pneumatic

With single-acting cylinders compressed air is applied on only one side of the piston face.The other side is open to atmosphere.The cylinder can produce work in only one direction.The return movement of the piston is effected by a build-in spring or by the application of an external force.The spring force of the build-in-spring is designed to return the piston to its start position with a reasonably high speed under no load conditions.
For single-acting cylinder with build-in spring,the stroke is limited by the natural length of the spring.Single-acting cylinder are therefore only available in stroke lengths of up to approximately 80mm.