Urethane Super-Duty Hydraulic Rod U-Seal — Engineered for the most extreme hydraulic rod sealing demands, this Super-Duty Urethane U-Seal delivers unmatched wear resistance, ultra-high-pressure capability, and extended service life in the harshest operating environments. The precision U-shaped lip profile is self-energizing — system pressure activates the seal lips for a tighter, more reliable seal under load — making it the go-to choice for severe-duty, high-cycle hydraulic cylinder applications where Heavy Duty seals fall short.
Key Benefits:
Self-energizing lip design — pressure-activated lips deliver a tighter seal under the most demanding loads
Superior abrasion resistance — premium urethane compound dramatically outperforms rubber in high-cycle rod applications
Ultra-high-pressure performance — rated for severe-duty hydraulic systems with minimal deformation or extrusion
Zero-leak lip geometry — precision profile maintains a consistent sealing film on the rod surface
Extreme temperature range — maintains flexibility and sealing integrity from -40°F to +230°F (-40°C to +110°C)
Typical Applications: Severe-duty mobile and industrial hydraulic cylinders; Heavy construction, mining, and forestry equipment; High-tonnage presses, lifts, and material handling systems; OEM and MRO replacement sealing in demanding environments
Material Properties: Compound: Premium Polyurethane (AU/EU) | Hardness: 92–97 Shore A | Temperature Range: -40°F to +230°F | Pressure Rating: Up to 8,000 PSI | Fluid Compatibility: Petroleum-based hydraulic fluids, mineral oils, water-glycol mixtures
Available in a full range of standard bore and rod sizes. Contact us for custom dimensions or special compounds for elevated temperature or chemical-resistance requirements.
