Hydraulic O-Ring Kits by Polypac — Reliable Sealing Solutions

Hydraulic O-Ring Kits — Polypac Precision Seals for Demanding Systems

Overview

Polypac's Hydraulic O-Ring Kits provide ready-to-install sealing assortments tailored for hydraulic systems across industries. Since 2008, Polypac has specialized in scientific and technical seal manufacturing and oil seal supply, delivering kits that combine industry-standard sizes with custom configurations to meet OEMs, repair shops, and maintenance teams’ needs.

Materials & Compatibility

Our kits include O-rings made from NBR, FKM (Viton®), silicone, EPDM, and high-performance FFKM, plus PTFE variants for exceptional chemical resistance. Each material selection is optimized for fluid compatibility, temperature range, pressure resilience, and wear life—ensuring the right compound for mineral oils, hydraulic fluids, glycol-based systems, and aggressive media.

Custom Manufacturing & Quality Assurance

Polypac's custom rubber ring and O-ring factory spans over 10,000 m² with 8,000 m² of production space and advanced production and testing equipment. We collaborate with universities and research institutes to refine formulas and test methods. Every kit undergoes dimensional control, hardness testing, and compression set evaluation to meet stringent hydraulic sealing standards.

Performance & Application Areas

Designed for cylinders, pumps, valves, and rotary actuators, our Hydraulic O-Ring Kits deliver leak-free performance under high pressure, dynamic motion, and fluctuating temperatures. Ideal for construction machinery, industrial hydraulics, marine systems, and mobile equipment, Polypac seals extend service intervals and reduce downtime.

Why Choose Polypac

As one of China’s largest dedicated seal producers, Polypac blends material science with manufacturing expertise. Our early PTFE development (bronze, carbon, MoS₂, graphite, glass-filled) informs modern elastomer choices, enabling hybrid solutions for severe service. We provide traceability, batch testing, and technical support to ensure reliable field performance.

Ordering, Kits & Technical Support

Polypac offers stocked standard kits and tailored sets by size, material, and quantity. Technical datasheets, compatibility guidance, and custom formulation assistance are provided to simplify selection. Contact Polypac for sample kits, CAD specs, and engineered sealing recommendations for your hydraulic applications.