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Polypac Single Lip Wiper — Reliable Hydraulic Wiper Seal

Polypac Single Lip Wiper is a high-performance hydraulic wiper seal designed to protect rods and cylinders from contaminants. Available in PTFE, NBR, FKM and custom compounds. Manufactured and tested in Polypac's advanced facilities for lasting reliability.

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Product Information

What is the Single Lip Wiper?

The Single Lip Wiper from Polypac is a compact, efficient wiper seal designed to remove dirt, dust and moisture from piston rods and shafts before they enter hydraulic cylinders. Its single lip design offers low friction while providing reliable protection for seals and system components.

Key Features

Durable Materials

Polypac supplies Single Lip Wipers in a range of materials to match working conditions: PTFE variants for low friction and chemical resistance, elastomers such as NBR and FKM for general hydraulic use, and specialty compounds for high temperature or aggressive media.

Precision Manufacturing

Produced in Polypac's modern factory (over 10,000 m² site and 8,000 m² production space), each wiper is made with strict dimensional control and quality testing. Our processes reduce variability and ensure consistent sealing performance.

Benefits for Your Equipment

Protects primary seals by preventing contaminants from entering the cylinder.
Reduces wear and downtime with a low-friction profile.
Available in standard and custom sizes to fit existing grooves and shafts.

Typical Applications

Single Lip Wipers are ideal for hydraulic cylinders, pneumatic rods, construction machinery, agricultural equipment, and industrial actuators — any application where rod cleanliness extends component life.

Why Choose Polypac?

Founded in 2008, Polypac is a scientific and technical hydraulic seal manufacturer and oil seal supplier. We specialize in seal production, sealing material development, and customized sealing solutions. With advanced production and testing equipment and collaboration with universities and research institutes, Polypac delivers reliable seals backed by expertise.

Customization & Testing

We offer custom profiles, special compounds, and small-batch runs. Every product undergoes dimensional and material tests to meet performance expectations. Samples are available for validation before production.

Installation Tips

Ensure the rod surface is clean and free of burrs, use the correct groove dimensions, and select the material suited to temperature and media. Contact Polypac for design guidelines if needed.

For samples, technical drawings, or custom requests, contact Polypac’s seal specialists for fast, professional support.

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Q&A

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.

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.

Why did my O-ring fail prematurely?

Common causes of O-ring failure include: Chemical Incompatibility: Swelling, softening, or cracking due to fluid exposure. Improper Sizing: Using an incorrect size leads to over-compression or inadequate sealing force. Abrasion: Wear and tear from rough surface finishes or contaminated fluid. Extrusion: The seal is forced into the gap between metal parts under high pressure. Installation Damage: Nicks, cuts, or twists during assembly.

If you have another questions, please feel free to contact us.

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PRODUCTS

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.

UL Industrial Rod Wiper for Pneumatic and Hydraulic Cylinders

Polypac's UL Industrial Rod Wiper is a durable single lip wiper designed for pneumatic and hydraulic cylinders. Engineered as a reliable hydraulic wiper seal, it ensures superior rod protection and contaminant exclusion, enhancing cylinder performance and longevity. Ideal UL wiper seal solution.

UL Industrial Rod Wiper for Pneumatic and Hydraulic Cylinders