dbde24e1-4012-47b6-8db4-e89ee4ca5a70 - Polypac

English

Turkish

dbde24e1-4012-47b6-8db4-e89ee4ca5a70

Polypac OEM Replacement Part — Reliable Hydraulic & Oil Seals

Polypac OEM replacement seals deliver reliable hydraulic and oil sealing solutions with custom materials, advanced testing, and large-scale production. Durable, OEM-fit seals for harsh conditions and fast lead times.

Get a free quote

Product Description

Product Overview

Polypac OEM replacement parts are precision-made seals designed to match or improve upon original equipment performance. Built for hydraulic systems, oil applications and other demanding environments, these seals provide a dependable, cost-effective replacement that fits directly into existing assemblies.

Key Features

OEM-fit design for easy installation and reliable performance
Wide material range: PTFE variants, NBR, FKM, silicone, EPDM, FFKM
Custom sizes and compounds for special working conditions
Strict testing and quality control for long service life

Why Choose Polypac OEM Replacement Seals

Polypac combines deep sealing expertise with modern manufacturing to deliver parts you can trust. Founded in 2008 with strong roots in filled PTFE technology, we now offer a full suite of rubber O-rings and oil seals. Our seals are optimized for wear resistance, low friction, and fluid compatibility—so your equipment runs longer with less downtime.

Material & Custom Options

Choose from bronze-, carbon-, graphite-, MoS₂- and glass-filled PTFE for demanding sliding applications. For elastomer needs we provide NBR, FKM, silicone, EPDM and High Quality FFKM. If your operation faces extreme temperature, chemical exposure, or high pressure, we tailor compounds and profiles to match.

Quality, Capacity & Testing

Our custom rubber ring and O-ring factory covers over 10,000 m² with 8,000 m² of production space and advanced equipment. We maintain strict QA processes and work with universities and research centers to stay at the cutting edge. Every OEM replacement part goes through performance checks to ensure consistency and reliability.

Ordering & Support

Polypac offers quick quotes, flexible MOQ, and support for reverse-engineering OEM parts. Whether you need a direct replacement or a custom sealing solution, our team will recommend the right material and design. Contact us for samples, technical guidance, and lead-time details.

Choose Polypac for OEM replacement seals that combine proven materials, custom options, and industry-leading quality—engineered to keep your systems sealed and operational.

Product Image

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.

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.

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.

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.

If you don’t find your answer, please E-mail us and we’ll be happy to help you out.

Let's talk

PRODUCTS

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.

DPT1 Piston Seal Kit | Specific Series Bidirectional Seal with Backup Rings

The Polypac DPT1 Piston Seal Kit is an exact replacement seal designed for excavator piston systems. This OEM replacement part features a specific series bidirectional seal with backup rings, ensuring superior durability and performance in heavy-duty applications.

DPT1 Piston Seal Kit | Specific Series Bidirectional Seal with Backup Rings

GSZ Series Heavy-Duty Rod Seals High-Pressure & Contamination Resistance

The GSZ series is a robust sealing solution designed for hydraulic cylinder rod applications, especially in demanding environments.

GSZ Series Heavy-Duty Rod Seals High-Pressure & Contamination Resistance

GSZ2 Piston Seal | Enhanced Bidirectional PTFE Seal for Hydraulic Cylinders

Polypac’s GSZ2 Piston Seal offers enhanced bidirectional sealing for hydraulic cylinders. Made from durable PTFE, it ensures superior wear resistance and low friction, optimizing cylinder performance and longevity. Ideal for demanding hydraulic applications requiring reliable sealing solutions.

GSZ2 Piston Seal | Enhanced Bidirectional PTFE Seal for Hydraulic Cylinders

DPT1 Piston Seal Kit | Specific Series Bidirectional Seal with Backup Rings

The Polypac DPT1 Piston Seal Kit is an exact replacement seal designed for excavator piston systems. This OEM replacement part features a specific series bidirectional seal with backup rings, ensuring superior durability and performance in heavy-duty applications.

DPT1 Piston Seal Kit | Specific Series Bidirectional Seal with Backup Rings