A hydraulic cylinder is a hydraulic executive element that transforms hydraulic energy into mechanical energy and performs linear reciprocating motion (or swinging motion). It is simple in structure and reliable in work. When it is used to carry out the reciprocating movement, the decelerator can be avoided, and there is no drive clearance and smooth movement, so it is widely used in various mechanical hydraulic systems. The output force of the hydraulic cylinder is proportional to the effective area of the piston and the pressure difference between the two sides; the hydraulic cylinder is basically composed of cylinder and cylinder cover, piston and piston rod, sealing device, buffer device and exhaust device.
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