Polypac Piston Seals — Precision Piston Seal Manufacturer

Polypac — Trusted Piston Seal Manufacturer for Hydraulic Systems

Polypac is a scientific and technical hydraulic seal manufacturer and oil seal supplier specializing in piston seals, sealing material development, and customized sealing solutions for special working conditions. Founded in 2008, we combine advanced production equipment with deep R&D collaborations to deliver piston seal performance you can rely on.

Materials & Expertise

As an experienced piston seal manufacturer, Polypac produces seals in filled PTFE variants — bronze-, carbon-, graphite-, MoS2- and glass-filled PTFE — and a wide range of elastomers including NBR, FKM, silicone, EPDM and FFKM. Our materials selection is optimized for friction, wear resistance, chemical compatibility and temperature extremes to meet diverse hydraulic demands.

Manufacturing Scale & Advanced Testing

Our custom rubber ring and O-ring factory covers over 10,000 square meters, with 8,000 square meters of dedicated production space. Polypac utilizes state-of-the-art manufacturing and testing equipment, enabling consistent tolerances, surface finishes and rigorous quality verification — from material analysis to endurance and leakage tests.

Custom Solutions for Extreme Conditions

Polypac specializes in tailored piston seal solutions for harsh or unusual operating environments. Whether you need low-friction seals for high-speed actuators, high-temperature compounds, or chemical-resistant profiles, our engineering team designs and prototypes seals to meet your specification and performance targets.

R&D Collaboration & Industry Credibility

We maintain long-term partnerships with universities and research institutions both domestically and internationally. These collaborations keep Polypac at the technological forefront, enabling continual improvements in sealing materials, tribology and product lifecycle — reinforcing our reputation as a top piston seal manufacturer.

Applications & Benefits

Polypac piston seals serve hydraulic cylinders, mobile machinery, industrial presses and aerospace actuators. Customers benefit from reduced downtime, improved energy efficiency and extended service intervals thanks to our precision manufacturing and rigorous testing protocols.

Contact & Next Steps

Choose Polypac for engineered piston seals, reliable production capacity and responsive customization. Contact our technical team to specify dimensions, materials and testing requirements — and receive a tailored sealing solution designed to perform.