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A rectangle with a piston and rod showing how it acts.
Also known as: Ram symbol, Actuator symbol, Double acting cylinder
A cylinder is drawn as a rectangle containing a piston and rod. Whether the rod leaves one end or both, and whether ports appear on one side or both, says whether it is single or double acting — which determines whether it can push and pull or only push.
Denotes a linear actuator, drawn as a rectangle containing a piston line and a rod leaving one or both ends.
Contexts: Technical drawing
Distinguishes single-acting from double-acting by the number of ports, which decides whether the cylinder is driven in both directions or returned by spring or gravity.
Contexts: Technical drawing
A rectangle divided by a line across its middle, with a straight rod leaving one short end and small ports on the long sides.