HBTU type piston rod seal is a single-acting reciprocating hydraulic rod seal engineered for hydraulic cylinder piston rods. It adopts a precisely optimized asymmetrical lip profile with pressure self-energizing sealing mechanism. As hydraulic pressure rises, the sealing lip closely clings to the rod surface to block internal hydraulic fluid leakage and prevent external dust, dirt and moisture from invading the cylinder interior.
Fabricated from high-grade polyurethane material, the HBTU piston rod seal delivers excellent wear resistance, superior tear strength and low friction coefficient. Its special cross-section structure provides strong anti-extrusion capacity under high pressure, effectively avoiding extrusion damage and deformation during long-term reciprocating motion. It can maintain stable sealing performance at working pressure up to 35 MPa, with operating temperature ranging from -30℃ to 100℃.
Compatible with mineral hydraulic oil and most common hydraulic fluids, HBTU hydraulic rod seals are widely used in excavators, forklifts, injection molding machines and other industrial hydraulic cylinders. It conforms to standard seal groove sizes for easy installation and direct replacement. Featuring low leakage rate and extended service life, the HBTU piston rod seal provides a reliable and cost-effective dynamic sealing solution for heavy-duty hydraulic systems.
Original text from: Hydraulic and Pneumatic Seals https://www.bszzseal.com/
