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Polypac Low Friction Step Seal

Polypac Low Friction Step Seal provides durable, low-wear sealing for hydraulic and oil systems. Made from advanced PTFE blends with customizable sizes and strict testing, it improves efficiency and reduces maintenance in harsh conditions.

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Product Description

Product Overview

The Polypac Low Friction Step Seal is engineered to deliver reliable sealing with minimal resistance. Designed for hydraulic and oil systems, this seal reduces energy loss and wear while maintaining a tight seal under pressure. It is ideal for applications needing smooth movement, long service life, and reduced maintenance.

Key Features

Low friction surface that lowers heat and improves efficiency.
Durable PTFE-based materials, available in filled variants for wear resistance.
Custom sizes and hardness options to fit specific equipment and working conditions.
Stable performance with a variety of hydraulic oils and fluids.
Manufactured and tested with advanced equipment for consistent quality.

Benefits for Your Equipment

Using the Low Friction Step Seal helps extend component life by reducing abrasive wear and seal degradation. Lower friction means less energy loss and smoother operation, which can lead to lower operating costs and less frequent downtime. The seal’s design also improves reliability in both static and dynamic applications.

Applications

This seal is suitable for cylinders, pistons, rods, and other hydraulic or oil-exposed moving parts. It performs well in heavy equipment, industrial machinery, and mobile hydraulics where low friction and long-lasting sealing are required.

Why Choose Polypac

Polypac is a scientific and technical manufacturer specializing in seal production, material development, and tailored sealing solutions. With a factory covering over 10,000 m² and advanced testing equipment, Polypac produces filled PTFE seals and a wide range of O-rings (NBR, FKM, silicone, EPDM, FFKM). Founded in 2008, we collaborate with top universities and research institutes to ensure continuous improvement. Our team values your needs and offers custom solutions to match special working conditions.

Contact Polypac for consultation and custom quotes to ensure the right Low Friction Step Seal for your application.

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Question you may concern

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.

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.

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.

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.

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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.

DSJK Piston Seal Kit | Bidirectional Step Seal with Anti-Extrusion Rings

Polypac’s DSJK Piston Seal Kit features a low friction step seal design with anti-extrusion rings, ideal for mining cylinder seals. Engineered for high pressure piston seal applications, it ensures reliable bidirectional sealing and durability in demanding industrial environments.

DSJK Piston Seal Kit | Bidirectional Step Seal with Anti-Extrusion Rings