Polypac Rotary Seal Solutions for Hydraulic and Oil Sealing

Rotary Seal Solutions by Polypac

Precision Rotary Seals for Demanding Applications

Polypac specializes in rotary seal solutions designed to protect hydraulic systems and oil circuits from leakage, contamination, and wear. Our rotary seal designs combine decades of sealing expertise with modern materials science to deliver consistent sealing performance under rotational motion, high pressure, and extreme temperatures.

Materials & Customization

We offer a broad materials palette including bronze-filled PTFE, carbon-filled PTFE, graphite PTFE, MoS2-filled PTFE, glass-filled PTFE, and a wide range of elastomers—NBR, FKM, silicone, EPDM, and FFKM. Polypac tailors compound selection and geometry to each rotary seal application, ensuring optimal friction, wear resistance, and fluid compatibility for oil, hydraulic fluids, and specialty media.

Manufacturing Capacity & Quality Assurance

Our custom rubber ring and O-ring factory spans over 10,000 m2 with 8,000 m2 of production space and industry-leading equipment. As one of China’s largest seal manufacturers, Polypac integrates precise molding, fabrication, and rigorous testing protocols to meet ISO-level quality and customer specifications. Long-term partnerships with universities and research institutes ensure our rotary seal technology evolves with the latest advances.

Performance in Real-World Conditions

Polypac rotary seals are engineered for dynamic sealing where rotation and oscillation create unique challenges. Typical benefits include reduced leakage, extended component life, low torque, and resistance to extrusion and thermal degradation. We deliver solutions for pumps, motors, rotary unions, slewing rings, and other rotary equipment across industrial, mobile hydraulic, and offshore sectors.

Custom Engineering & Technical Support

From prototype development to large-volume production, Polypac provides end-to-end support: material selection, finite element analysis, wear testing, and on-site troubleshooting. Our team works closely with clients to develop custom rotary seal designs that reduce downtime and lower total cost of ownership.

Why Choose Polypac

Choose Polypac for proven rotary seal expertise, advanced materials, and scalable manufacturing. We combine scientific R&D with practical sealing know-how to deliver reliable, high-performance seals tailored to your toughest working conditions.