The hydraulic cylinder is one of the most important components in a system hydraulic. The hydraulic fluid transforms the energy in useful work. The input value is the hydraulic fluid pressure acting on the piston of the cylinder. This force produces a linear motion of the piston and hence the rod inside the pipe of the cylinder, the burden is on the opposite side. Thus, hydraulic energy is transformed into a controllable force, acting in a straight line. Hydraulic agent is usually synthetic and emulsion oil or water