Piston cylinder

The piston is a component installed on the plunger (piston rod), larger than the diameter of the plunger (piston rod), which divides the cylinder into two chambers, bears the hydraulic pressure and transmits the force to the plunger (piston rod) for work. Both ends of the piston can be stressed. One end is pushed out and the other end is pushed back. The piston oil cylinder can be divided into single rod type and double rod type structures. Its fixing methods are cylinder block fixation and piston rod fixation. According to the action of hydraulic pressure, there are single acting type and double acting type. In the single acting hydraulic cylinder, the pressure oil is only used for one chamber of the hydraulic cylinder. The hydraulic pressure enables the cylinder to move in one direction, while the reverse movement is achieved by external forces (such as spring force, dead weight or external load); The movement of the piston in both directions of the double acting hydraulic cylinder is completed by the action of hydraulic pressure by alternately feeding oil into the two chambers.