Single-rod hydraulic cylinders only have a piston rod at one end. As shown in Figure 1 is a single-piston hydraulic cylinder. Both the inlet and outlet ports A and B at both ends can pass pressure oil or return oil to achieve bidirectional movement, so it is called a double-acting cylinder.
The piston can only move in one direction, and the movement in the opposite direction needs to be done by external force. However, its stroke is generally larger than that of a piston hydraulic cylinder.
