Metric Piston Seals — Precision Sealing Solutions by Polypac

Metric Piston Seals — Precision Sealing Solutions by Polypac

Overview

Polypac's Metric Piston Seals are engineered for reliable, low-friction sealing in hydraulic cylinders and reciprocating applications. Designed for metric dimensions and manufactured to exacting tolerances, these piston seals provide consistent contact, reduced wear and extended service life. Whether for OEM production or aftermarket replacement, our Metric Piston Seals balance sealing efficiency with energy-saving performance.

Materials & Technology

We leverage decades of expertise in PTFE compounds and elastomers. Our product range includes bronze-, carbon-, graphite-, MoS2- and glass-filled PTFE variants, plus elastomeric options such as NBR, FKM, EPDM, silicone and FFKM. This material diversity enables us to tailor friction, chemical resistance and temperature performance for each application—ensuring Metric Piston Seals perform in high pressure, high temperature, abrasive or chemically aggressive environments.

Customization & Manufacturing

Polypac's custom rubber ring and O-ring factory spans over 10,000 m² with 8,000 m² of production space and industry-leading equipment. We offer precision machining, compound formulation and bespoke seal geometries to meet special working conditions. From metric standard sizes to fully customized piston seal profiles, our manufacturing process supports high-volume consistency and rapid prototyping for qualification runs.

Applications & Performance

Our Metric Piston Seals are optimized for hydraulic cylinders in mobile hydraulics, industrial presses, agricultural equipment and heavy machinery. They ensure minimal leakage, stable sealing under side loads and excellent resistance to extrusion and wear. The result: higher system reliability, reduced maintenance intervals and improved operational uptime.

Quality Assurance & R&D

Polypac maintains rigorous testing and quality control with advanced inspection and simulation tools. Since 2008 we’ve partnered with universities and research institutes to develop sealing materials and validate performance. Every batch undergoes dimensional checks, material verification and functional testing to meet international standards.

Why Choose Polypac

Choose Polypac for Metric Piston Seals when you need proven materials science, large-scale manufacturing capability and flexible customization. We deliver OEM-grade seals, technical support and fast supply chains to solve demanding sealing challenges—contact us to specify materials, tolerances and delivery for your next project.