Double-acting Cylinders

industrial hydraulic cylinder, doble acting hydraulic cylinder
This type of cylinder is also called a differential cylinder. Differential cylinders are designed to work on the two opposite surfaces of the piston; this means that they can work in two directions: outwards and inwards. In the presence of a piston, the pressure acts on two different surfaces, which generally produce two different speeds and two different forces: a push force and a pull force.

Double-acting cylinders are used in a variety of applications and are definitely the most commonly used type of cylinder.