Polypac Heavy Duty Piston Seal: Robust Hydraulic Sealing Solutions

Polypac Heavy Duty Piston Seal — Engineered for Reliability

High-Performance Design

The Heavy Duty Piston Seal from Polypac is engineered to provide superior sealing performance in high-pressure hydraulic cylinders. Optimized for minimal extrusion, low friction, and long-term dimensional stability, this piston seal reduces wear and improves system efficiency across heavy machinery, mobile hydraulics, and industrial presses.

Advanced Materials & Construction

Polypac leverages decades of material science expertise to manufacture Heavy Duty Piston Seal configurations using filled PTFE compounds (bronze, carbon, graphite, MoS₂, glass) and elastomers like NBR, FKM, silicone, EPDM and FFKM. These combinations deliver excellent chemical compatibility, thermal stability, and resistance to abrasion and extrusion under dynamic loading.

Precision Manufacturing & Testing

Our custom rubber ring and O-ring factory spans over 10,000 m² with 8,000 m² of production space, equipped with industry-leading production and testing equipment. Each Heavy Duty Piston Seal undergoes rigorous dimensional inspection, material verification, and performance testing to meet ISO and customer-specific standards.

Customized Sealing Solutions

Polypac specializes in bespoke sealing solutions for special working conditions. From unique compound formulations to tailored seal geometries and assemblies, our R&D collaborations with universities and research institutions enable rapid development of Heavy Duty Piston Seal designs for challenging environments, including high temperature, abrasive media, and long-stroke applications.

Applications & Benefits

Typical applications for the Heavy Duty Piston Seal include construction equipment, mining machinery, offshore hydraulics, and industrial automation. Key benefits include prolonged service intervals, reduced leakage, improved energy efficiency, and predictable performance under fluctuating pressures and temperatures.

Why Choose Polypac

Founded in 2008, Polypac combines scientific rigor with production scale to deliver reliable sealing products. As a leading hydraulic seal manufacturer and oil seal supplier, we offer fast prototyping, consistent quality control, and global support—making our Heavy Duty Piston Seal the preferred choice for engineers seeking durable, high-performance hydraulic seals.