Products Description
U-Cup & Y-Rings are self-energizing lip seals engineered for dynamic reciprocating motion in hydraulic and pneumatic cylinders. By harnessing system fluid pressure to progressively flare the sealing lips against mating walls, they deliver dependable, low-friction sealing across both piston and rod assemblies.
Product Features
Pressure-energized self-sealing
Internal fluid pressure automatically expands the flexible lips against mating surfaces, creating tighter sealing as system pressure escalates.
Symmetrical & asymmetrical profiles
Available in universal symmetrical styles, or specialized asymmetrical cuts engineered specifically for rod (internal) or piston (external) sealing.
High-wear Polyurethane & FKM
Precision molded in tough Polyurethane (PU) for maximum tear and extrusion resistance, or FKM/NBR for high temperature and oil stability.
Low breakout friction & smooth travel
Optimized knife-edge lip geometry minimizes stick-slip and friction-induced heat, ensuring smooth stroke operation and long service life.
As one of the most professional u-cup & y-rings manufacturers and suppliers in China, we're featured by good service and competitive price. If you're going to wholesale customized u-cup & y-rings made in China, welcome to get more information from our factory.
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