Single-acting cylinder
Pressure produces force in one direction; return is by spring or external load. One port.
ISO 1219-1
Cylinders
Linear actuators that turn hydraulic pressure into motion and force.
Double-acting cylinder
Pressure produces force in both directions via two ports; both extension and retraction are hydraulically driven.
ISO 1219-1
Double-acting cylinder with cushioning
As double-acting, but with end-of-stroke cushioning that slows the piston before the end position.
ISO 1219-1
Telescopic cylinder
Several nested cylinder stages give a long stroke from a short installed length.
ISO 1219-1
Test yourself on these in the symbol trainer.
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