dbde24e1-4012-47b6-8db4-e89ee4ca5a70 - Polypac

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Polypac Precision Rod Seal

Polypac Precision Rod Seal delivers reliable, low-friction sealing for hydraulic and pneumatic cylinders. Engineered from advanced materials and produced in our modern factory, these rod seals offer long life, tight sealing, and easy customization for demanding conditions.

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Product Description

Product Overview

Polypac Precision Rod Seal is designed to provide dependable sealing performance for hydraulic and pneumatic cylinders. Built with advanced materials and precision manufacturing, these rod seals minimize leakage, reduce friction, and extend component life under a wide range of pressures, speeds, and temperatures.

Key Features

High wear resistance for long service life
Low friction design to improve efficiency and reduce heat
Excellent extrusion and pressure handling
Available in multiple materials (PTFE-filled variants, NBR, FKM, EPDM, silicone, FFKM)
Precision dimensions for a tight, reliable fit

Materials & Custom Options

Originating from a background in filled PTFE technology, Polypac offers Precision Rod Seals in bronze-filled, carbon-filled, graphite, MoS2-filled, and glass-filled PTFE, plus a full range of elastomers for varied applications. Our factory supports custom sizes, compound formulations, and special coatings to suit extreme temperatures, chemical exposure, or abrasive environments.

Why Choose Polypac

Founded in 2008, Polypac combines modern production equipment, rigorous testing, and close R&D partnerships with universities and research institutes. Our 10,000+ m² facility and advanced testing lines ensure consistent quality and fast delivery. As a leading seal manufacturer and oil seal supplier, we focus on practical sealing solutions that reduce downtime and maintenance costs.

Applications

Ideal for hydraulic cylinders, construction equipment, mobile machinery, industrial presses, and any system requiring robust rod sealing under pressure. Our seals perform well in both low-speed high-load and high-speed applications.

Benefits at a Glance

Reduced leakage and maintenance
Improved energy efficiency
Customizable to special working conditions
Delivered with strict quality control and testing

Choose Polypac Precision Rod Seal for dependable sealing performance backed by decades of material expertise and large-scale, quality-driven production.

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Frequently Asked Questions

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.

How do I choose the right material for my sealing application?

Material selection depends on four key factors: Media: What fluid or gas will the seal contact? (e.g., petroleum oil, water, chemicals, steam) Temperature: What is the minimum and maximum operating temperature? Pressure: What is the system's operating pressure? Are there pressure spikes? Application: Is it a static, dynamic, or rotary seal? Example: NBR (Buna-N) is excellent for standard hydraulic oil, while FKM (Viton®) is needed for high temperatures or aggressive chemicals.

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.

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.

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dbde24e1-4012-47b6-8db4-e89ee4ca5a70

Polypac Industrial Technology Co.,Ltd

+86 189 2463 6168

rose@dmsseals.com

No. 5, Hegui Mid Road, Hegui Industrial Park, Lishui Town, Nanhai District, Foshan City, Guangdong Province, P.R. China.

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