Polypac Heavy Duty Seal System

Polypac Heavy Duty Seal System

Overview — Engineered for Extreme Conditions

Polypac’s Heavy Duty Seal System integrates decades of sealing expertise into a product family built for heavy-duty hydraulic and oil sealing applications. We specialize in seals that resist high pressure, aggressive media, wide temperature swings, and abrasive environments—delivering reliable performance where standard seals fail.

Materials & Manufacturing Capabilities

Our factory spans over 10,000 m² with 8,000 m² of production space equipped with advanced molding and testing systems. Starting in 2008 with filled PTFE (bronze, carbon, graphite, MoS₂, glass), Polypac now offers comprehensive elastomer solutions including NBR, FKM, silicone, EPDM, and FFKM. These materials are selected and blended through our material development program to optimize friction, wear resistance, and chemical compatibility.

Performance Benefits

The Heavy Duty Seal System minimizes leakage, lowers frictional heat, and extends mean time between maintenance (MTBM). Designed for axial and rotary motion, dynamic and static interfaces, our seals improve system efficiency, reduce contamination ingress, and protect critical components in mobile hydraulics, industrial presses, and offshore equipment.

Custom Design & Testing

Polypac collaborates with universities and research institutes to develop tailored sealing solutions for special working conditions. We provide custom O-rings, rubber rings, and PTFE components with rapid prototyping, endurance testing, and dimensional validation to meet strict OEM specifications and international standards.

Quality Assurance & Supply Strength

As one of China’s largest seal manufacturers, Polypac enforces rigorous quality control across production and testing. Our in-house lab and inspection capabilities ensure consistency, traceability, and compliance—supporting global supply with reliable lead times and scalable production runs.

Why Choose Polypac

Choose the Heavy Duty Seal System for engineered longevity, material expertise, and responsive customization. Contact Polypac to specify seals that reduce downtime, optimize performance, and withstand the toughest operating environments.