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Polypac Rod Seal Repair Kit — Reliable Hydraulic Rod Seal Kit

Polypac Rod Seal Repair Kit provides a complete, high-quality solution for repairing hydraulic rod seals. Durable materials, easy installation, and custom options reduce downtime and extend cylinder life.

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Product Details

Polypac Rod Seal Repair Kit — Fast, Durable Hydraulic Repair

Get your hydraulic systems back to peak performance with the Polypac Rod Seal Repair Kit. Designed for technicians and maintenance teams, this kit contains carefully selected seals and O-rings that fit common rod sizes and working conditions. Polypac combines advanced materials and manufacturing expertise to deliver a reliable, long-lasting repair solution.

Why Choose Polypac?

Proven materials: PTFE variants (bronze-, carbon-, graphite-, MoS2-, and glass-filled) and elastomers like NBR, FKM, silicone, EPDM, and FFKM for different temperatures and chemicals.
Built to last: High wear and extrusion resistance reduces leakage and extends service life.
Precision made: Manufactured in a modern facility with strict quality control and testing.

What's in the Kit

Each kit includes rod seals, backup rings, wipers, guide rings, and a selection of O-rings sized for typical cylinder rods. Components are grouped and labeled for quick identification, so technicians can complete repairs faster with fewer errors.

Benefits

Quick installation: Clear labeling and matched components speed up field repairs and minimize downtime.
Versatile compatibility: Works with many hydraulic cylinders and is suitable for harsh environments.
Custom options: Polypac supports custom seal design and material selection for special working conditions.

Trusted Manufacturing Partner

Founded in 2008, Polypac is a scientific and technical hydraulic seal manufacturer and oil seal supplier. With over 10,000 m² of facilities and advanced production/testing equipment, Polypac collaborates with universities and research centers to keep improving seal performance.

Choose the Polypac Rod Seal Repair Kit to reduce leaks, prevent repeated failures, and extend the life of your hydraulic systems. Contact Polypac for standard kits, size charts, or custom sealing solutions.

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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.

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.

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.

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.

If you have any questions about our goods or services, please feel free to contact us.

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