After the liquid is usually pressurized cylinder cover, cylinder, piston, piston assembly, the front cover and other major components; in order to prevent oil leakage to the outside or by a hydraulic cylinder high-pressure chamber to the low pressure chamber leaks, in the cylinder and cover, piston and piston rod, piston and cylinder, piston rod and the front cover are set to a seal between the front outer cover, is also equipped with dust-proof device; To prevent the piston stroke end quickly back to the cylinder when the impact cover, also set the end of the hydraulic cylinder cushion device; sometimes need to set the exhaust. Mainly from the Bottom of the hydraulic cylinder, cylinder, cylinder head, piston, piston rod and the guide sleeve, etc; Bottom welding cylinder at one end and the other end and cylinder head with screw connection. Piston and piston rod with card key access, in order to ensure a reliable gas and liquid pressure cylinder seal, set in the appropriate position and the dust ring seals.
(This article reproduced from http://www.dgybl.com)