Polypac Piston Seals for Hydraulic Cylinders

Polypac Piston Seals for Hydraulic Cylinders

Product overview

Polypac offers a comprehensive range of piston seals for hydraulic cylinders engineered for leak-free performance, low friction and long service life. Our piston seals are developed for mobile hydraulics, industrial presses, construction equipment and specialty applications where reliability and tight tolerances matter. We combine traditional elastomers with advanced filled PTFE options to meet demanding operating pressures, speeds and temperatures.

Materials and design options

Choose from a wide palette of sealing materials including NBR, FKM, EPDM, silicone and High Quality FFKM for aggressive fluids and high temperatures. Our PTFE-based portfolio includes bronze-filled, carbon-filled, graphite PTFE, MoS2-filled and glass-filled grades for superior wear resistance and low friction. Polypac engineers optimize cross-section, lip geometry and back-up rings to deliver piston seals for hydraulic cylinders that minimize extrusion and maintain dynamic stability.

Why Polypac

Founded in 2008, Polypac is a scientific and technical hydraulic seal manufacturer and oil seal supplier. Our custom rubber ring and O-ring factory covers more than 10,000 square meters, with 8,000 square meters of production space and industry-leading testing equipment. We collaborate with top universities and research institutions to continually advance sealing materials and testing methods, ensuring every piston seal for hydraulic cylinders meets strict performance criteria.

Performance and testing

Polypac piston seals undergo rigorous testing for pressure cycling, wear, chemical compatibility and temperature stability. Our quality control ensures low leakage rates, consistent friction coefficients and predictable service life. This translates to reduced downtime, longer maintenance intervals and improved system efficiency for our customers.

Customization and support

We specialize in custom sealing solutions for special working conditions. Whether you need large bore piston seals, specialty compounds or rapid prototyping, Polypac provides engineering support, material selection guidance and scalable production. Contact our team for quotations, CAD drawings and sample programs to validate performance in your hydraulic systems.

Ordering and applications

Polypac piston seals for hydraulic cylinders are ideal for construction, agriculture, marine, mining and industrial equipment. Request a consultation to match the optimal seal design to your operating profile and discover how our advanced materials and manufacturing can extend the life of your hydraulic systems.