Polypac Extreme Service Rod Seal

Polypac Extreme Service Rod Seal provides heavy-duty sealing for hydraulic rods in harsh environments. Advanced materials, low friction design and customizable sizes reduce downtime and extend cylinder life.
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Product Details

Polypac Extreme Service Rod Seal — Reliable, Long-Life Protection

The Polypac Extreme Service Rod Seal is engineered to deliver durable, high-performance sealing for hydraulic rods operating in the toughest conditions. Built with proven materials and precision manufacturing, this rod seal reduces leakage, resists wear, and keeps your equipment running longer with less maintenance.

Key Features

  • High wear and abrasion resistance for extended service life.
  • Low friction profile to improve efficiency and reduce heat.
  • Wide temperature and pressure compatibility for various working environments.
  • Available in standard sizes and fully customizable dimensions and materials.
  • Reliable sealing against contaminants, dust, and moisture.

Benefits for Your Equipment

Using Polypac Extreme Service Rod Seals reduces downtime and maintenance costs by increasing seal life and protecting hydraulic cylinders from early failure. The low-friction design improves system responsiveness and can contribute to lower energy use. Custom options mean you get the right seal for unique grooves, special fluids, or extreme temperatures.

Applications

Ideal for mobile and industrial hydraulics including construction machinery, mining equipment, agricultural hydraulics, offshore systems, and high-pressure cylinders. Whenever rods face heavy loads, abrasive particles, or harsh environments, these rod seals are the practical choice.

About Polypac

Polypac is a scientific and technical hydraulic seal manufacturer and oil seal supplier focused on seal production, sealing material development, and custom sealing solutions. Our custom rubber ring and O-ring factory covers more than 10,000 m² with 8,000 m² of factory space. Founded in 2008, Polypac began with filled PTFE seals (bronze, carbon, graphite, MoS₂, and glass-filled PTFE) and now offers O-rings in NBR, FKM, silicone, EPDM, and FFKM. We use advanced production and testing equipment and collaborate with universities and research institutions to ensure quality and innovation.

Why Choose Polypac?

We combine industry-leading materials, precision manufacturing, and custom engineering to deliver rod seals that meet demanding specifications. Fast turnaround, consistent quality, and practical sealing solutions make Polypac the partner of choice for operators who need dependable performance in extreme service conditions.

Picture Show

  • FSVI-X 平面图

FAQ

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.
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.
How important is surface finish on the metal parts that contact the seal?
Extremely important. A rough surface will abrade and wear out the seal quickly, causing leaks. A finish that is too smooth can prevent a lubricating film from forming. A typical recommended surface finish for dynamic applications is 0.2 to 0.8 μm (8-32 μin) Ra.
Get In Touch With Us
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Polypac Industrial Technology Co.,Ltd
No. 5, Hegui Mid Road, Hegui Industrial Park, Lishui Town, Nanhai District, Foshan City, Guangdong Province, P.R. China.
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Tags
Wear Resistant U-Cup
Wear Resistant U-Cup
Heavy Duty Piston Seal
Heavy Duty Piston Seal
rotary seal​
rotary seal​
Hydraulic Cylinder Seals
Hydraulic Cylinder Seals
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Whether you need product details, technical support, or a custom solution, we’re here to assist.

Your privacy matters to us. We handle your data securely, in compliance with international quality and safety certifications.

With over 10 years of sealing expertise, we are ready to provide you with reliable solutions.

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How Can We Help You?

Whether you need product details, technical support, or a custom solution, we’re here to assist.

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Your privacy matters to us. We handle your data securely, in compliance with international quality and safety certifications.

With over 10 years of sealing expertise, we are ready to provide you with reliable solutions.

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