Polypac Hydraulic Piston Seals — Engineered for Performance

Polypac Hydraulic Piston Seals — Engineered for Performance

Product Overview

Polypac's hydraulic piston seals are designed to deliver reliable sealing under high pressures, wide temperature ranges, and aggressive environments. Our piston seals minimize leakage and reduce friction to improve system efficiency, longevity, and maintenance intervals. Whether for hydraulic cylinders, industrial presses, or mobile equipment, our hydraulic piston seals meet rigorous operational demands.

Materials & Technology

We leverage decades of experience with filled PTFE compounds—including bronze, carbon, graphite, MoS₂, and glass-filled PTFE—alongside elastomers such as NBR, FKM, EPDM, silicone, and FFKM. Advanced material selection and proprietary formulations enable low wear, chemical resistance, and stable dynamic performance for hydraulic piston seals in challenging conditions.

Customization & Manufacturing Capacity

Polypac operates a custom rubber ring and O-ring factory spanning over 10,000 square meters, with 8,000 square meters of production space. Our modern production and testing equipment support high-volume manufacturing and precision custom parts. We provide tailored seal geometries, compound choices, and vendor-ready specifications for OEM and aftermarket projects.

Applications & Performance Benefits

Designed for high-pressure cylinders, construction machinery, agricultural hydraulics, and industrial automation, Polypac piston seals ensure dependable sealing under dynamic loads. Benefits include reduced leakage, lower frictional losses, extended service life, improved energy efficiency, and consistent performance across temperature and media variations.

Quality Assurance & R&D Collaboration

As one of China’s leading seal manufacturers, Polypac maintains long-term collaborations with universities and research institutes domestically and internationally. Our quality systems, advanced testing capabilities, and material development labs ensure each hydraulic piston seal meets strict tolerances and performance standards before shipment.

Why Choose Polypac

With a foundation in PTFE innovation since 2008 and a full portfolio of elastomer and PTFE solutions, Polypac blends scientific expertise with industrial-scale production. Choose Polypac for custom hydraulic piston seals that combine proven materials, rigorous testing, and responsive engineering support—delivering the sealing reliability your systems require.