Split Wear Ring Solutions by Polypac

Split Wear Ring Solutions by Polypac

Overview

Polypac offers high-performance Split Wear Ring products engineered to protect hydraulic cylinders, pistons, and rotary shafts from metal-to-metal contact. Our Split Wear Ring designs minimize friction, control fluid leakage paths, and extend the life of primary seals in demanding environments.

Materials & Compatibility

Available in filled PTFE grades and engineered polymers, Polypac's Split Wear Ring lineup includes bronze-filled PTFE, carbon-filled PTFE, glass-filled PTFE and high-performance elastomer-backed options. We match material selection to media, temperature, and pressure requirements to ensure compatibility with hydraulic fluids and aggressive environments.

Design & Customization

Each Split Wear Ring can be customized for split diameter, cross-section, and finish to suit retrofits or new designs. Polypac's in-house R&D and collaboration with universities enable tailored solutions—whether you need stepped rings, segmented designs, or integrated anti-extrusion features.

Manufacturing Capability

Our 10,000+ m² facility and advanced production equipment allow precision machining, molding, and finishing of Split Wear Rings at scale. Polypac's quality-controlled processes deliver consistent tolerances and repeatable performance for large and small production runs.

Testing & Quality Assurance

Rigorous testing protocols, including dimensional inspection, hardness verification, and simulated-service wear testing, validate each Split Wear Ring before shipment. Long-term partnerships with research institutions support ongoing material qualification and life-cycle improvement.

Applications & Benefits

Split Wear Rings from Polypac are ideal for hydraulic cylinders, pumps, compressors, and rotary equipment. Benefits include reduced friction, lower heat build-up, improved seal life, easier maintenance (split installation), and cost savings from extended equipment uptime.

Why Choose Polypac

Founded in 2008, Polypac combines decades of seal expertise with modern manufacturing. As a leading seal manufacturer and oil seal supplier, we provide turnkey solutions—material development, prototyping, and volume production—backed by technical service and fast lead times.

Get Started

Contact Polypac for application review, sample evaluation, or custom Split Wear Ring design. Our specialists will recommend materials and geometries to optimize performance and reduce total cost of ownership.

Split Wear Ring Display

FAQ:
What is the difference between NBR and FKM materials?

NBR (Nitrile/Buna-N): A general-purpose, cost-effective material with excellent resistance to petroleum-based oils and fuels. It has a standard temperature range of -30°C to +100°C (-22°F to +212°F). FKM (Fluoroelastomer/Viton®): A premium material with excellent resistance to high temperatures (up to 200°C+), chemicals, and oils. It is used in more severe environments but is more expensive than NBR.

When should I use a spring-energized seal instead of a standard elastomeric seal?

Consider a spring-energized seal (e.g., GSF, SPN types) for demanding applications involving: Extreme Temperatures (below -30°C or above +200°C) Aggressive Chemicals that elastomers can't handle Very Low Leakage or "Zero Leakage" requirements Poor Lubricity or dry running conditions The internal spring maintains constant sealing force, compensating for wear and system variables.

How important is surface finish on the metal parts that contact the seal?

Extremely important. A rough surface will abrade and wear out the seal quickly, causing leaks. A finish that is too smooth can prevent a lubricating film from forming. A typical recommended surface finish for dynamic applications is 0.2 to 0.8 μm (8-32 μin) Ra.

Can I reuse a seal?

We strongly recommend never reusing seals. Once compressed and used, a seal takes a "set" and its elastic properties are degraded. Reusing it almost always results in a leak. Always install a new seal during any maintenance or repair.

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