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Polypac Low Friction Piston Seal — Durable Hydraulic Seal

Polypac Low Friction Piston Seal offers low wear, smooth operation, and long service life for hydraulic systems. Made with advanced materials and strict testing for reliable performance.

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Product Information

Product Overview

The Polypac Low Friction Piston Seal is designed to deliver smooth, efficient performance in hydraulic cylinders. Built for durability and minimal energy loss, this seal reduces wear on mating surfaces and extends service intervals. It is ideal for mobile equipment, industrial machinery, and any system that requires reliable piston sealing under varying pressures and speeds.

Key Features

Low friction design for reduced energy consumption and smoother movement
Long wear life to lower maintenance frequency and costs
Good resistance to temperature and common hydraulic fluids
Consistent sealing under variable pressure and speed conditions

Materials & Compatibility

Polypac offers these seals in advanced materials including filled PTFE variants and elastomers. Our material options ensure compatibility with a wide range of fluids and temperatures. Common choices include bronze-filled PTFE, carbon/PTFE blends, and elastomers such as NBR, FKM, silicone, EPDM, and high-performance FFKM for demanding environments.

Applications

Suitable for hydraulic cylinders in construction machinery, agricultural equipment, presses, marine systems, and industrial actuators. The Low Friction Piston Seal is a practical choice where smooth piston motion and long-term reliability are priorities.

Why Choose Polypac

Proven Manufacturing & R&D

Polypac is a scientific and technical hydraulic seal manufacturer and oil seal supplier. Our factory spans over 10,000 m² with 8,000 m² of production space, equipped with advanced production and testing machines. Since 2008, we have specialized in PTFE-filled seals and expanded into a full range of O-rings and elastomer seals.

Quality, Testing & Custom Solutions

We maintain close cooperation with universities and research institutes to ensure materials and designs meet high standards. Polypac provides customized sealing solutions for special working conditions, backed by strict quality control and testing to ensure each seal performs reliably in the field.

Choose Polypac Low Friction Piston Seal for dependable, low-maintenance hydraulic performance supported by industry expertise and robust manufacturing capacity.

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Q&A

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 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.

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.

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.

GSD Piston Seal | Bidirectional PTFE Seal for Hydraulic Cylinders

Polypac’s GSD Piston Seal is a bidirectional PTFE seal designed for hydraulic cylinders, delivering low friction performance and durability. Compatible with NBR O-Rings, it ensures efficient sealing and enhanced cylinder life in demanding applications. Ideal for smooth, reliable hydraulics.

GSD Piston Seal | Bidirectional PTFE Seal for Hydraulic Cylinders