Brown PTFE Bronze NBR POM Ring SPGW Back Up Ring For Excavator Hydraulic Cylinders

Sealing ring: filled polytetrafluoroethylene F-PTFE
Elasticity: nitrile rubber NBR
Back-up ring: modified polyoxymethylene POM or modified nylon PA

Features
•Good dynamic and static sealing performance
•Can allow larger extrusion gap, depending on the application, so the processing cost can be reduced
•Due to the larger extrusion gap, it can also be used safely in the medium with dirt
•Low friction, no creeping phenomenon
•Simple groove, can be used for integral piston
•If there are special requirements (pressure, temperature, speed, special media, etc.), please contact our consulting service department to recommend suitable materials to you.

Application range
Hydraulic system, reciprocating motion, heavy-duty bidirectional piston sealing under high pressure, low pressure and high frequency conditions is very good. Applicable to long and short stroke situations, and in a wide range of fluids and high temperature situations, it can be suitable for larger piston gaps. Mainly used for cylinder piston seals of heavy loads or engineering machinery, with good leakage control, extrusion resistance and wear resistance, such as: excavators, heavy hydraulic cylinders, etc.