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Polypac High Pressure Rod Seal — Reliable Hydraulic Sealing Solution

Polypac High Pressure Rod Seal offers durable, low-friction sealing for hydraulic cylinders. Engineered for extreme pressure and long life, available in custom materials and sizes. Trusted manufacturing and advanced testing ensure consistent performance.

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Product Information

Product Overview

The Polypac High Pressure Rod Seal is designed to provide dependable sealing in hydraulic cylinders exposed to high pressure and demanding conditions. Engineered for low friction, excellent wear resistance, and stable performance over long service life, this rod seal minimizes leakage and reduces maintenance downtime.

Key Benefits

High Pressure Performance

Specifically formulated for high-pressure environments, the seal keeps tight contact with the rod to prevent fluid loss even under peak loads.

Low Friction & Energy Efficiency

Optimized geometry and advanced materials reduce friction, improving system responsiveness and lowering energy consumption.

Long Service Life

With superior wear and extrusion resistance, Polypac rod seals extend maintenance intervals and deliver consistent operation in tough conditions.

Materials & Custom Options

Wide Material Selection

Polypac offers seals in PTFE variants (bronze-, carbon-, graphite-, MoS₂-, and glass-filled) along with elastomers like NBR, FKM, EPDM, silicone, and High Quality FFKM. This lets you match seals to fluid types and temperatures.

Custom Sizes & Special Conditions

Our factory supports custom dimensions and design tweaks for special working conditions. Whether you need high temperature stability, chemical resistance, or tight tolerances, we can deliver tailored solutions.

Why Choose Polypac

Founded in 2008, Polypac is a scientific and technical hydraulic seal manufacturer with a 10,000+ m² facility and advanced production/testing equipment. We collaborate with universities and research institutes to ensure continuous innovation. Our commitment to quality and custom manufacturing makes us a preferred partner for OEMs and maintenance teams.

Easy Ordering & Support

Fast sample availability, flexible batch sizes, and responsive technical support make it simple to get the right seal for your project. Contact Polypac for specification help or to request a quote.

Choose Polypac High Pressure Rod Seal for reliable sealing, reduced downtime, and optimized hydraulic performance.

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Question you may concern

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.

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.

How do I choose the right material for my sealing application?

Material selection depends on four key factors: Media: What fluid or gas will the seal contact? (e.g., petroleum oil, water, chemicals, steam) Temperature: What is the minimum and maximum operating temperature? Pressure: What is the system's operating pressure? Are there pressure spikes? Application: Is it a static, dynamic, or rotary seal? Example: NBR (Buna-N) is excellent for standard hydraulic oil, while FKM (Viton®) is needed for high temperatures or aggressive chemicals.

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.

If you have any questions or concern, please 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.

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