Polypac Nitrile (NBR) Piston Rod Seal — Reliable Hydraulic Sealing

Polypac Nitrile (NBR) Piston Rod Seal — Reliable Hydraulic Sealing

High Quality Material and Performance

Polypac's Nitrile (NBR) piston rod seal is formulated for excellent resistance to hydraulic oils, fuels and lubricants while providing low friction and long wear life. NBR compounds offer stable performance across typical hydraulic ranges (approximately -30°C to +120°C), good compression set resistance and proven dynamic sealing against contaminants and pressure spikes. The result: reduced leakage, extended cylinder life and dependable field performance.

Precision Design and Manufacturing

Every Nitrile (NBR) piston rod seal from Polypac is produced with precision tooling and CNC molding to ensure consistent lip geometry, controlled interference and optimal contact pressure. Our 8,000 m² production facility uses advanced molding, extrusion and finishing equipment to guarantee tight tolerances, smooth sealing lips and repeatable dimensional accuracy for both standard and bespoke sizes.

Applications and Industry Use

These piston rod seals are ideal for hydraulic cylinders in construction equipment, agricultural machinery, material handling, industrial presses and mobile hydraulics. Polypac Nitrile (NBR) piston rod seal performs well in medium-pressure systems and environments where oil compatibility and abrasion resistance are critical. For special chemical or high-temperature applications, alternative compounds are also available.

Customization and Material Options

Polypac specializes in customized sealing solutions: shore hardness, compound additives, lip profiles, and integrated back-up or scraper rings can be tailored to your working conditions. We can also supply complementary products—O-rings, rubber wipers, PTFE-filled seals and backup rings—to create a full sealing system optimized for life and performance.

Quality Assurance and Testing

Founded in 2008, Polypac combines extensive R&D with rigorous testing—aging, tensile, hardness, friction and dynamic leak tests—carried out on industry-leading equipment. Long-term partnerships with universities and research institutions ensure material formulations and test protocols meet evolving hydraulic standards.

Why Choose Polypac

As one of China’s largest seal manufacturers, Polypac offers competitive lead times, scalable production and technical support for OEMs and distributors. Choose Polypac's Nitrile (NBR) piston rod seal for proven reliability, customizable designs and expert sealing engineering. Contact us for samples, specifications or a custom quotation.