Products

Rotary shaft lip seals, commonly known as oil seals, are installed in the bearing housing and move relative to the rotating shaft. A metal skeleton provides support, and a spring applies radial preload to the sealing lip to prevent lubricant leakage and the intrusion of external contaminants.

VAD Type Universal Rod and Bore Seal adopts an innovative lip seal structure. Through the synergistic effect of polyurethane (PU) and nitrile rubber (NBR) composite materials and star rings, it achieves excellent sealing performance in the full range of high and low pressures. It is resistant to vibration, extrusion, low temperature adaptability and ultra-long life. It is designed by Ruichen Seals specifically for harsh working conditions such as forging machines, heavy hydraulic cylinders and mobile equipment.

Ruichen Seals manufactures high-quality, reliable BA-Type Universal Rod and Bore Seals for heavy-duty hydraulic equipment. These symmetrical seals are suitable for the demanding working conditions of forging machines, construction machinery travel devices, and hydraulic cylinder piston rods. They offer excellent resistance to vibration, pressure spikes, extrusion, and low-temperature sealing, maintaining a stable seal even under extreme conditions.

professional piston rod seal manufacturer in China, our symmetrical seals feature a sophisticated cross-section design that allows for direct installation into integral grooves. They excel in combination with retaining rings under high-pressure conditions and are widely used for bidirectional sealing of shafts and bores in construction machinery, hydraulic systems, and heavy equipment.

UN-Cup Seal is a product developed, designed and produced by Ruichen Seal considering the sealing needs of mechanical equipment in multiple fields. It has a symmetrical structure and is widely used in piston and piston rod sealing conditions of automobiles, agricultural machinery, cranes, mining equipment and forestry machinery. It has wear resistance, easy installation and adaptability to working conditions.

Ruichen Seals' Premium Single-Acting U-Cup Lip Seal utilizes high-performance polyurethane (PU) material and an asymmetric structural design. Complying with ISO5597 international groove standards, it was developed for one-way sealing in reciprocating hydraulic applications. It offers excellent sealing performance, wear resistance, and anti-extrusion capabilities, making it suitable for construction machinery, agricultural equipment, and industrial hydraulic systems.