Polypac Urethane O-Rings — Durable Polyurethane Seals for Hydraulic Systems

Overview

Polypac Urethane O-Rings are precision-molded polyurethane seals designed to meet demanding hydraulic and industrial sealing needs. Combining robust material properties with meticulous manufacturing, these O-rings provide consistent performance under pressure, dynamic motion, and abrasive conditions.

Why Choose Polypac Urethane O-Rings

Polypac specializes in sealing solutions with decades of material development and production experience. Our urethane O-rings stand out for:

Key Benefits

• High abrasion and tear resistance — ideal for rod and piston applications.
• Excellent load-bearing and resilience — maintains seal under repeated cycles.
• Good chemical compatibility with common hydraulic fluids.
• Broad temperature range for varied working environments.
• Custom sizes and compound options to fit special conditions.

Applications

These O-rings are well suited for hydraulic cylinders, pumps, valves, and other moving parts where wear and pressure are concerns. Typical industries include construction equipment, agricultural machinery, mining, and industrial automation.

Quality and Manufacturing

Polypac's custom rubber ring and O-ring factory covers over 10,000 m² with 8,000 m² of factory space, equipped with advanced production and testing equipment. Since 2008, we have expanded from filled PTFE seals to a wide range of elastomers including NBR, FKM, silicone, EPDM, FFKM, and polyurethane.

Testing and Assurance

Every batch of urethane O-rings undergoes dimensional checks, hardness testing, and performance validation to ensure long-term reliability. We collaborate with universities and research institutes to continuously improve materials and processes.

Customization and Support

Polypac offers tailored solutions for special working conditions. Provide your dimensions, pressure, temperature, and fluid type, and our engineers will recommend the optimal urethane compound and design. We support small runs to large-scale production with fast lead times.

Choose Polypac Urethane O-Rings for proven durability, precise manufacturing, and trusted technical support—seals engineered to protect your equipment and reduce downtime.