16MPa pressure below the low-pressure cylinder is known as the hydraulic

16MPa pressure below the low-pressure cylinder is known as the hydraulic cylinderPressure 16MPa or less are called low-pressure hydraulic cylinder hydraulic cylinder , which is widely used bulldozers, loaders , graders and cranes and other construction machinery . Such  Hydraulic hose fittings  cylinder seals used oil and rubber as a material , such as nitrile rubber, rubber cloth and ternary Nigerian rubber. Hydraulic cylinder seals since the beginning of the outer two parts: the outer seal portion includes cylinder between the cylinder head and cylinder head static seal between the piston rod guide sleeve and dynamic seals, the role is to ensure that the two do not produce the outer cylinder leakage ; inner sealing portion comprises a piston and cylinder diameter moving between seals and piston rod of the static seals. Performance status of these seals is to determine whether the hydraulic cylinders designed capacity of the key.