The SKY type hydraulic seal is a high-performance U-shaped sealing component engineered for reciprocating hydraulic cylinders, suitable for piston and rod dynamic sealing applications. Featuring a refined U-lip profile, this SKY hydraulic seal can automatically activate sealing tension under hydraulic pressure. As pressure rises, the lip expands and closely attaches to the sliding metal surface to stop fluid leakage, delivering consistent sealing performance under cyclic working conditions.
Constructed from premium polyurethane raw material, the SKY hydraulic seal boasts remarkable wear resistance, low compression set and strong anti-extrusion capability. It maintains low friction during repeated back-and-forth movement, reducing friction heat and minimizing wear on mating metal surfaces. The PU material is compatible with most standard hydraulic oils and exhibits stable performance across a common operating temperature range. Its compact structure matches standard sealing grooves, enabling simple installation and direct replacement without modifying cylinder housings.
SKY hydraulic seals are widely adopted in construction machinery, forklifts, agricultural equipment and hydraulic power units for medium-duty hydraulic systems. It effectively controls internal and external oil leakage, protects cylinder assemblies and cuts down unexpected equipment downtime. For OEM cylinder manufacturing and aftermarket spare parts distribution, the SKY type hydraulic seal provides a reliable and budget-friendly dynamic sealing solution for fluid power systems.
Original text from: Hydraulic and Pneumatic Seals https://www.bszzseal.com/
