Polypac Custom Rotary Shaft Seals — Engineered for Performance

Polypac Custom Rotary Shaft Seals: Precision Sealing for Demanding Applications

Engineering-Led Seal Design

Polypac specializes in custom rotary shaft seals designed to meet tight tolerances, high speeds, and aggressive media. Our engineering team combines decades of PTFE and elastomer expertise to create seals that reduce leakage, extend service life, and improve machine uptime. Whether a one-off prototype or a long production run, we tailor designs to your shaft geometry and operating conditions.

Advanced Materials & Compound Options

We offer a broad portfolio of materials including NBR, FKM, silicone, EPDM, FFKM, and filled PTFE variants (bronze, carbon, graphite, MoS₂, glass). Material selection is driven by temperature, chemical exposure, hardness, friction and wear requirements to ensure optimal sealing performance under dynamic rotary conditions.

Manufacturing Capacity & Quality Assurance

Polypac’s custom rubber ring and O-ring factory spans over 10,000 m² with 8,000 m² of production floor and industry-leading equipment for molding, machining and testing. Founded in 2008, we leverage long-term cooperation with universities and research institutes to validate designs and materials. Every lot undergoes dimensional, hardness and performance testing to meet customer specifications and international standards.

Applications & Performance Benefits

Our custom rotary shaft seals serve hydraulic motors, pumps, gearboxes, turbines and rotating shafts across industries including oil & gas, mobile hydraulics, marine and industrial machinery. Benefits include lower friction, improved contamination resistance, extended maintenance intervals and reliable sealing in harsh environments.

Why Choose Polypac

As an award-winning seal manufacturer and oil seal supplier, Polypac combines scientific R&D with manufacturing scale to deliver cost-effective, high-reliability sealing solutions. From filled PTFE heritage to modern elastomer blends, we provide fast prototyping, strict quality control and global support—making Polypac the partner of choice for custom rotary shaft seals.