PTFE Wiper Seals
Also available in PU, NBR and POM

What Is A Wiper Seal?

Often referred to as scrapers, wiper seals need to provide stability and reliability in applications where solid particles and liquids need to be kept out of hydraulic or lubrication systems.

We can design and manufacture wiper seals in a range of profiles and materials. In the table below you’ll find more information on operating temperature ranges and surface speeds. 

Our Wiper Seals:

Types of Wiper Seal Materials and Their Benefits

The material used in the construction of a wiper seal plays a crucial role in its performance. 

PU (Polyurethane):

• High abrasion resistance and flexibility
• Ideal for heavy-duty applications like construction and mining
• Performs well in dynamic sealing environments

NBR (Nitrile Butadiene Rubber):

• Excellent resistance to oils and fuels
• Ideal for use in hydraulic cylinders and piston rods
• Common in automotive and industrial machinery

POM (Polyoxymethylene):

• Low friction and high stiffness
• Excellent wear resistance for tight tolerances
• Used in automotive and industrial applications

PTFE (Polytetrafluoroethylene):

• Exceptional chemical resistance and low friction
• Ideal for high-temperature and aggressive chemical environments
• Common in aerospace, food processing, and pharmaceuticals

These materials are chosen for their ability to withstand a variety of operating conditions, ensuring that the wiper seals perform well in both light and heavy-duty applications.

How Wiper Seals Work:

In hydraulic systems, the wiper seal plays a crucial role in maintaining the system’s integrity. It works in conjunction with other components, like scraper seals, to protect vital components. Here's how it functions:

Inner Bore: The wiper seal helps prevent contaminants from entering the inner bore of the hydraulic cylinder, which is critical for maintaining system cleanliness and functionality.

Piston Rod: As the piston rod moves through the cylinder, the wiper seal clears away dust and debris, preventing them from entering the system and causing damage. Dust seals play an important role in this process, ensuring contaminants are kept out.

Hydraulic Cylinders: The wiper seal ensures a tight fit around the rod diameter, effectively preventing contaminants from entering and extending the life of the hydraulic cylinder. It works alongside scraper seals to maintain a clean environment for the reciprocating ram rod, which is integral to hydraulic operations.

By ensuring a clean, debris-free environment, wiper seals contribute significantly to the performance and longevity of hydraulic systems.

Selecting the Right Wiper Seal for Your Needs

Choosing the right wiper seal is crucial for the performance of your hydraulic system. The right choice depends on several factors, including the rod diameter, operating conditions, and the overall sealing system. At AFT, we offer custom solutions to meet your specific needs, whether you are working with a standard hydraulic system or need something more tailored for complex applications.

Here are some key factors to consider:

• Rod Diameter: Ensuring the wiper seal fits the rod diameter correctly is essential for creating a tight fit and preventing contaminants from entering.
• Operating Conditions: Whether your system operates in high temperatures, high pressures, or harsh chemicals, selecting the right material for the wiper seal is critical to its longevity.
• Sealing System Specifics: It’s important that the wiper seal integrates seamlessly with other seals, like scraper seals, to ensure complete protection for the system.

With AFT, you can be confident that we will provide a wiper seal tailored to your exact specifications, ensuring maximum protection for your system.

Advantages of Using AFT’s Wiper Seals

At AFT, we are committed to delivering high-quality wiper seals that provide exceptional performance. Here are some of the key advantages of choosing our products:

• Precision Engineering and Quality: Our wiper seals are made to the highest industry standards, ensuring superior reliability and longevity.
• Custom Solutions for Diverse Industries: Whether you need seals for automotive, aerospace, or food processing applications, we offer tailored solutions for every sector.
• Fluoropolymer Expertise: Our expertise in advanced materials like PTFE and PEEK ensures that our wiper seals are built for durability and performance in even the most demanding environments.
• End-to-End Production Capabilities: From the design phase to final delivery, we manage every aspect of the production process to ensure the highest quality in every seal we produce.