Industrial Piston Seals by Polypac

Industrial Piston Seals by Polypac

High-performance materials for demanding environments

Polypac's Industrial Piston Seals combine decades of material science and field experience. Starting from filled PTFE such as bronze, carbon, graphite, MoS₂ and glass-filled PTFE, we now offer elastomers including NBR, FKM, silicone, EPDM and High Quality FFKM. These options provide low friction, high wear resistance and chemical compatibility for a wide range of temperatures and media.

Precision manufacturing and capacity

Our custom rubber ring and O-ring factory spans over 10,000 m² with 8,000 m² of dedicated production area, equipped with industry-leading CNC molding and testing systems. As one of China’s largest seal manufacturers, Polypac ensures consistent tolerances, repeatable quality and scalable volumes to meet both prototype and high-volume production needs.

Custom solutions for special working conditions

Polypac specializes in tailored Industrial Piston Seals for unique operating conditions—high pressure, high speed, abrasive fluids, or vacuum. We collaborate with clients to select compound formulations, backup rings and composite constructions to optimize service life and performance.

R&D partnerships and technical expertise

Founded in 2008, Polypac maintains long-term cooperation with universities and research institutes domestically and internationally. Our engineering team supports material development, finite element analysis and seal design verification to reduce development cycles and improve field reliability.

Comprehensive testing and quality assurance

Every piston seal undergoes rigorous physical and chemical testing—hardness, tensile, compression set, dynamic wear and leak rate tests—backed by traceable documentation. Our quality systems ensure each batch meets customer specifications and international standards.

Applications and customer value

Polypac’s Industrial Piston Seals are used across hydraulic cylinders, mobile equipment, presses, injection molding machines and heavy machinery. We deliver lower downtime, reduced maintenance costs and improved machine efficiency—backed by responsive technical support and global logistics.

Get started with Polypac

Contact Polypac for material selection, prototype runs or full-scale supply agreements. Our team will assess your requirements and recommend optimized Industrial Piston Seals to extend service life and enhance system performance.