Hydraulic Cylinder Piston Rod BS Seal

Professional Grade Polyurethane BS Type Seal for Heavy Duty Hydraulic Cylinder Applications

Our BS type hydraulic cylinder piston seals represent the pinnacle of sealing technology for heavy-duty hydraulic applications. BS is primarily designed to seal piston rods and plungers in heavy duty applications in mobile and stationary hydraulic systems. Manufactured from premium polyurethane material with Shore A hardness of 90-95, these seals deliver exceptional durability and reliable performance under extreme operating conditions.

The comprehensive size range from 8mm to 250mm accommodates diverse hydraulic cylinder specifications across industrial, construction, and mobile equipment applications. Each seal features precision-engineered grooved design with Y/U configuration that ensures optimal sealing performance while maintaining smooth piston rod movement. The double lip construction provides superior sealing capability against both internal pressure and external contamination.

It is the most critical seal on any type of fluid power equipment preventing leakage of fluid from within the cylinder to the outside. Operating effectively within temperature ranges from -20°C to 100°C and pressure capabilities up to 30MPa, these seals maintain consistent performance across demanding operational environments. The polyurethane construction offers excellent resistance to hydraulic oils, water-based fluids, and common industrial lubricants.

Installation is straightforward thanks to standard groove dimensions that match conventional hydraulic cylinder designs. The green polyurethane material provides visual identification and professional appearance while delivering long-term reliability. Whether for equipment maintenance, system upgrades, or new installations, these BS type seals ensure leak-free operation and extended service life for your hydraulic cylinder systems.