If it is not cut by the workpiece, cut it into a rectangle with 0. Lmm thick cold-rolled steel strip or copper skin, the length of which is equal to the circumference of the outer diameter of Y-ring, is used to wrap the sealing ring tightly, and then it is sent to the cylinder barrel of the hydraulic cylinder bit by bit, and then it is taken out after the outer lip is completely put into the cylinder barrel. The installation effect is good.

Y-shaped sealing ring made of polyurethane is widely used in hydraulic cylinders because of its high hardness, high elasticity, oil resistance, wear resistance and low temperature resistance. Its inner and outer lips can be made into unequal height shapes according to the shaft or hole, which plays the role of sealing and self-protection. Y-ring with unequal lips, whose short lips are in contact with the sealing surface, has small sliding friction resistance, good wear resistance and long service life; Long lips and non-relative moving surfaces have large pre-compression and are not easy to move when working.