What is a single-acting hydraulic cylinder?
There is only one oil port, the movement in one direction is realized by oil pressure, and the return depends on external force such as self-weight or spring. This type hydraulic cylinder two chambers only one end has oil, and the other end is in contact with air.
Single-acting cylinders include single-rod cylinders, double-piston rod cylinders, plunger cylinders, and telescopic cylinders.
For example, plunger hydraulics are referred to as plunger cylinders, which rely on hydraulic pressure to rise and their weight to fall (return). They are mostly used in vertical lifting applications, and are better than hydraulic plunger cylinders.
What is a double-acting hydraulic cylinder?
The double-acting hydraulic cylinder has two oil inlet and outlet ports. Both the extension and retraction of the cylinder can be realized by pressure oil.