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Polypac Pneumatic Cylinder Repair – Reliable Seal Solutions

Polypac offers professional pneumatic cylinder repair seals and kits, including custom O-rings and PTFE components. Advanced production and testing ensure durable, leak-free performance for industrial pneumatic systems.

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Product Description

Professional Pneumatic Cylinder Repair by Polypac

When pneumatic cylinders start to leak or lose efficiency, the right seals make all the difference. Polypac provides dependable pneumatic cylinder repair solutions—custom O-rings, rubber rings, and PTFE seals designed to restore performance quickly and reliably.

Why Choose Polypac Seals?

Polypac is a scientific and technical hydraulic seal manufacturer and oil seal supplier with over a decade of experience. Our factory spans more than 10,000 square meters, and our production and testing equipment are among the industry’s most advanced. We partner with top universities and research institutions to ensure our materials and designs meet demanding working conditions.

Quality Materials and Options

We started in 2008 producing filled PTFE seals (bronze-filled, carbon-filled, graphite, MoS₂, glass-filled) and have expanded to offer O-rings and rubber rings in NBR, FKM, silicone, EPDM, and FFKM. This range lets us match seals to your application—temperature, pressure, and media—so repairs last longer and operate safely.

Repair Kits and Custom Solutions

Polypac supplies ready-made pneumatic cylinder repair kits for fast maintenance and custom seal solutions for unusual or harsh environments. Our kits include high-quality O-rings, wipers, guide rings, and backup rings to ensure complete restoration of cylinder function.

Reliable Performance, Tested

Every seal undergoes strict inspection and performance testing. That means fewer surprises after installation and a lower risk of downtime. Our experienced engineers can recommend the right material and tolerance to match your cylinder specifications.

Easy Ordering and Support

We simplify the repair process with clear product specs, fast lead times, and technical support. Whether you need a standard repair kit or a fully customized sealing solution, Polypac delivers professional service and long-term reliability.

Choose Polypac for pneumatic cylinder repair you can trust—advanced materials, expert design, and proven durability to keep your systems running smoothly.

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Q&A

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 does "AS568" mean?

AS568 is the Aerospace Standard that defines the dimensions for over 360 standard O-ring sizes. It is the most widely accepted sizing system in North America and globally. An AS568 number (e.g., AS568-214) specifies a precise inside diameter and cross-section.

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.

If you have any questions about our goods or services, please feel free to contact 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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