Polypac Wiper Seal — Reliable Hydraulic Dust Protection

Polypac Wiper Seal keeps hydraulic cylinders free of dust and contaminants. Made with advanced materials and strict testing, it delivers dependable protection and long service life in tough environments.

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Product Details

Polypac Wiper Seal — Reliable Protection for Hydraulic Systems

The Polypac Wiper Seal is designed to protect hydraulic and pneumatic cylinders from dust, dirt, and moisture. Built by Polypac, a trusted seal manufacturer with over a decade of experience, this wiper provides consistent performance and helps extend the life of your equipment.

Why choose Polypac Wiper Seals?

Polypac combines skilled engineering, high-quality materials, and advanced production equipment to produce wiper seals that are both durable and cost-effective. With a factory area exceeding 10,000 square meters and close ties to research institutions, Polypac focuses on reliable sealing solutions tailored to real working conditions.

Key features

Durable material options: available in various rubbers like NBR, FKM, EPDM, silicone, and high-performance FFKM for demanding applications.
Effective contaminant exclusion: designed to scrape away dirt and moisture from piston rods, preventing seals and bearings from premature wear.
Precision manufacturing: tight tolerances ensure a secure fit and consistent sealing action.
Wide operating range: suitable for different temperatures and environments depending on material choice.

Benefits for your operation

Using Polypac Wiper Seals reduces maintenance costs and downtime by keeping contaminants out of critical components. Their reliable performance improves system efficiency and helps maintain stable operation over time. Polypac’s quality testing and material development mean you get seals that meet higher durability standards.

Applications

Ideal for hydraulic cylinders, mobile equipment, construction machinery, agricultural machinery, and industrial automation. Custom sizes and material blends are available to fit specific conditions and special operating requirements.

Quality assurance and customization

Polypac offers strict testing and quality control, plus custom solutions for challenging environments. Whether you need filled PTFE variants or rubber O-rings in specific compounds, Polypac delivers tailored sealing solutions backed by research and advanced production lines.

Choose Polypac Wiper Seal for simple, effective protection that helps your hydraulic systems last longer and perform better.

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Frequently Asked Questions

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.

What is the difference between a static seal and a dynamic seal?

A Static Seal is used between two surfaces that do not move relative to each other (e.g., pipe flanges, end caps). O-rings and gaskets are common static seals. A Dynamic Seal is used between surfaces that do move (e.g., piston and cylinder, rotating shaft). Rod seals, piston seals, and rotary shaft seals are designed for this purpose.

How can I prevent seal damage during installation?

Use Tools: Always use dedicated installation tools (e.g., picks, cones, guides). Lubricate: Always lubricate the seal and the contact surface. Protect Sharp Edges: Cover sharp threads and edges with tape or use an installation sleeve. Check the Groove: Ensure the installation groove is clean, deburred, and undamaged.

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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