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Polypac OEM Hydraulic Cylinder Rod Seals — Precision Sealing Solutions

Polypac OEM Hydraulic Cylinder Rod Seals: Reliable Sealing for Demanding Systems

Overview

Polypac specializes in OEM hydraulic cylinder rod seals engineered to protect cylinders from contamination and fluid leakage while optimizing efficiency and lifetime. As a scientific and technical hydraulic seal manufacturer and oil seal supplier, Polypac combines decades of material science with modern production to supply robust rod seals for mobile hydraulics, industrial presses, and custom machinery.

Materials & Technical Expertise

Our seals begin with proven polymers and composites—NBR, FKM, EPDM, silicone, FFKM and filled PTFE variants such as bronze-, carbon- and MoS₂-filled PTFE—selected to withstand abrasion, extrusion and chemical attack. Polypac’s deep partnerships with universities and research institutions ensure OEM hydraulic cylinder rod seals are formulated to match temperature ranges, pressures and media specific to your application.

Customization & OEM Capability

With a 10,000 m² facility and 8,000 m² production floor, Polypac provides scalable OEM services from prototype tooling to large-volume runs. We specialize in customized sealing solutions—tailoring cross-sections, lips, spring-energized geometries and compound blends—to deliver rod seals that reduce friction, extend service intervals and integrate seamlessly into your assemblies.

Quality Assurance & Testing

Polypac deploys advanced production and testing equipment to validate wear, leakage, compression set and dynamic life. Every batch of OEM hydraulic cylinder rod seals undergoes rigorous dimensional inspection and performance testing to meet international standards and the specific reliability metrics required by OEMs and aftermarket suppliers.

Applications & Benefits

Polypac rod seals are proven in construction equipment, agricultural machinery, marine hydraulics and industrial actuators. Benefits include enhanced contamination resistance, lower downtime, improved energy efficiency and predictable replacement intervals—translating to lower total cost of ownership for OEMs.

Why Choose Polypac

Founded in 2008, Polypac’s integration of material innovation, large-scale manufacturing and R&D cooperation makes us a preferred partner for OEM hydraulic cylinder rod seals. Contact Polypac for consultation, custom samples and accelerated development to solve your toughest sealing challenges.

OEM hydraulic cylinder rod seals Display

FAQ:

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.

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 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.

Table of Contents

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Polypac OEM Hydraulic Cylinder Rod Seals: Reliable Sealing for Demanding Systems
Overview
Materials & Technical Expertise
Customization & OEM Capability
Quality Assurance & Testing
Applications & Benefits
Why Choose Polypac
OEM hydraulic cylinder rod seals Display

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