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

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Polypac Rod Guide Ring — Durable Hydraulic Guide Ring

Polypac Rod Guide Ring provides reliable guidance and low-friction support for hydraulic cylinders. Made from advanced filled PTFE and engineered polymers, it reduces wear, extends seal life, and fits demanding applications. Backed by Polypac’s R&D and precision manufacturing.

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Product Details

Product Overview

Polypac Rod Guide Ring is a high-performance guide ring designed to support piston rods and prevent metal-to-metal contact in hydraulic cylinders. Built from advanced filled PTFE and engineered polymer blends, this guide ring delivers low friction, excellent wear resistance, and stable performance under heavy loads and side thrust.

Key Features & Benefits

Low friction surface reduces heat and energy loss, improving system efficiency.
High wear resistance extends service life and lowers maintenance frequency.
Excellent dimensional stability maintains tight tolerances and smooth rod guidance.
Resistant to common hydraulic fluids and additives for reliable operation.
Available in custom sizes and materials to match special working conditions.

Applications

Ideal for hydraulic cylinders in construction equipment, industrial machinery, mobile hydraulics, and marine systems. The Polypac Rod Guide Ring performs well wherever rod guidance, load distribution, and long-term reliability are required.

Why Choose Polypac

Founded in 2008, Polypac is a specialist in hydraulic seals and sealing materials. Our factory spans over 10,000 square meters with an 8,000-square-meter production space, equipped with advanced production and testing equipment. We started with filled PTFE seals and now offer a wide material range, including bronze-filled, carbon-filled, graphite PTFE, MoS2-filled, glass-filled PTFE, and elastomers like NBR, FKM, silicone, EPDM, and FFKM. Long-term partnerships with universities and research institutes ensure continuous innovation and quality.

Customization & Quality Assurance

Polypac provides custom rod guide rings tailored to your dimensions and operating conditions. Our in-house testing and strict quality controls ensure each guide ring meets performance standards. Quick prototyping and volume production capabilities make Polypac a reliable partner for OEMs and aftermarket needs.

Choose Polypac Rod Guide Ring for smoother rod motion, longer seal life, and fewer breakdowns. Contact us to request samples, technical data, or a custom quote.

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Question you may concern

What is the purpose of the metal spring in a rotary shaft seal?

The garter spring in a shaft seal (e.g., FSKR, SPGO types) provides a constant radial force on the sealing lip. This ensures consistent contact with the rotating shaft, compensating for minor wear, eccentricity, and vibration to prevent lubricant leakage.

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.

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.

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.

Get In Touch With Us

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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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