Mode of operation of piston rod cylinders
In a piston rod cylinder, there is always a piston rod with an drive piston, the movement of which is controlled by compressed air. The energy applied to the piston is then transferred by the piston rod to the parts to be moved. Cylinders with piston rod are available as double-acting and single-acting piston rod cylinders.
Single-acting cylinder with piston rod has only one supply port. Compressed air is introduced through the port, causing the piston to move in one direction. When the cylinder releases the air again, the piston returns to its initial position with the help of a spring.
Double-acting cylinders, on the other hand, have two supply ports and are controlled exclusively with compressed air. The compressed air causes and controls the extension and retraction by supplying compressed air to either one or the other port.