Engineered for demanding hydraulic rod applications, this asymmetric twin lip U-seal delivers superior sealing performance where standard seals fall short. The dual-lip geometry creates a primary sealing lip that wipes the rod clean on the return stroke while the secondary lip retains system pressure — giving you a cleaner, longer-lasting seal in high-cycle environments.
Key Features
Asymmetric twin lip design — independent primary and secondary lips for optimized pressure retention and rod wiping
Urethane construction — exceptional abrasion resistance, high tensile strength, and broad chemical compatibility
Rod seal geometry — precision-molded to maintain consistent contact pressure across the rod surface
Low friction profile — minimizes stick-slip and reduces rod wear for extended service life
Wide operating range — suitable for mineral oils, water-glycol fluids, and most hydraulic media
Typical Applications
Hydraulic cylinders (mobile and industrial)
Linear actuators
Heavy equipment and construction machinery
Agricultural and forestry hydraulics
Machine tool and press applications
Material Properties
Material: Polyurethane (AU/EU)
Hardness: Typically 90–95 Shore A
Temperature range: -30°C to +100°C (-22°F to +212°F)
Pressure rating: Up to 5,000 PSI (345 bar) depending on size
Select the correct rod diameter and groove dimensions to ensure proper fit and sealing performance. Contact us for custom sizes or material specifications.
