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High Pressure Hydraulic Rod Seal Solutions | Polypac

High Pressure Hydraulic Rod Seal Solutions

Overview

Polypac manufactures high pressure hydraulic rod seal products designed for critical sealing tasks in heavy machinery, construction equipment, and industrial hydraulics. As a scientific and technical seal producer, we combine decades of seal expertise with modern production capability to provide rod seals that resist extrusion, wear, and leakage under extreme pressures.

Performance and Materials

Our high pressure hydraulic rod seal range uses advanced materials including filled PTFE (bronze, carbon, graphite, MoS₂, glass), high-performance elastomers (NBR, FKM, EPDM, silicone, FFKM) and engineered composites. These materials are selected and compounded to optimize friction, hardness, and chemical compatibility for long service life and minimal stick-slip in high-pressure rod applications.

Customization and Precision Manufacturing

Polypac’s custom rubber ring and O-ring factory spans over 10,000 m² with 8,000 m² of production space and industry-leading equipment. We provide tailored sealing geometries, tolerances, and material formulations for bespoke high pressure hydraulic rod seal designs—especially for special working conditions such as high temperature, aggressive fluids, or abrasive media.

Quality Control and R&D

Quality is core to every high pressure hydraulic rod seal we produce. Our in-house testing facilities and collaborations with universities and research institutes ensure rigorous dynamic, leakage, and fatigue testing. Continuous R&D on sealing materials and surface interactions ensures each seal meets or exceeds performance specifications.

Applications and Why Choose Polypac

Typical applications include hydraulic cylinders for construction, mining, marine, and industrial presses. Choose Polypac for proven expertise in filled PTFE seals, a broad elastomer portfolio, fast prototyping, and scalable production. Our engineering team supports material selection, simulation, and on-site troubleshooting to deliver reliable sealing solutions that reduce downtime and total cost of ownership.

Contact and Next Steps

For specification sheets, custom quotes, or sample evaluations of high pressure hydraulic rod seal options, contact Polypac’s technical team. We turn demanding sealing challenges into durable, certified solutions.

high pressure hydraulic rod seal Display

FAQ:

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.

Can I reuse a seal?

We strongly recommend never reusing seals. Once compressed and used, a seal takes a "set" and its elastic properties are degraded. Reusing it almost always results in a leak. Always install a new seal during any maintenance or repair.

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 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.

Table of Contents

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High Pressure Hydraulic Rod Seal Solutions
Overview
Performance and Materials
Customization and Precision Manufacturing
Quality Control and R&D
Applications and Why Choose Polypac
Contact and Next Steps
high pressure hydraulic rod seal Display

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