Pneumatic Cylinder - Single-action Design With Dual Valve Operation | Enhanced Control For Inward And Outward Movement

Operation of a pneumatic cylinder
GECO Special pneumatic cylinders can be moved both inwards and outwards by compressed air. Cylinders of this type are called "double-action cylinders". Cylinders also exist which can only be moved pneumatically in one direction. The return movement is caused by a spring. Cylinders of this type are called "single-action cylinders".

The compressor cylinder is a single-action cylinder. In order to move a fischertechnik cylinder in both directions two of the valves contained in the kit are required.

* To move the cylinder outwards valve V1 must be open (the coil is supplied with
electric current) and valve V2 closed (no current flowing).
* To move the cylinder inwards valve V2 is open and valve V1 closed