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

English

Turkish

dbde24e1-4012-47b6-8db4-e89ee4ca5a70

Shock Resistant Seal — Polypac

Polypac Shock Resistant Seal delivers dependable, impact- and vibration-resistant sealing for hydraulic systems and heavy machinery. Engineered with advanced materials and rigorous testing, available in custom sizes and compounds to suit demanding working conditions.

Get a free quote

Product Information

Shock Resistant Seal — Reliable Protection by Polypac

Polypac Shock Resistant Seal is designed to maintain sealing integrity under shock, vibration and rapid pressure changes. Built for hydraulic systems, mobile equipment and heavy machinery, this seal reduces leakage, extends component life and enhances operational safety.

Key Features

Shock and vibration resistant design for dynamic environments
High wear and extrusion resistance for long service life
Stable performance across wide temperature and pressure ranges
Low friction for smooth movement and improved efficiency
Available in custom sizes and compounds to match application needs

Materials & Compatibility

Polypac offers Shock Resistant Seals in a range of proven materials to suit media and temperature demands. Common materials include PTFE-based blends and elastomers such as NBR, FKM, EPDM, silicone and FFKM. We select materials to resist oil, fuel, hydraulic fluids and common industrial chemicals while preserving shock-absorbing characteristics.

Applications

Typical uses include hydraulic cylinders, pumps, valves, construction and agricultural machinery, mining equipment and automotive systems—anywhere repeated impacts or rapid pressure shifts threaten sealing reliability.

Quality & Testing

Polypac operates a 10,000+ sqm facility with 8,000 sqm of factory space and advanced production and testing equipment. Since 2008 we have focused on filled PTFE and now produce a broad seal portfolio. Every Shock Resistant Seal undergoes dimensional checks, material testing and functional trials to ensure consistent performance in real-world conditions.

Custom Solutions

We work closely with clients and research partners to develop seals for special working conditions. From compound selection to precision machining, Polypac delivers tailored seals that meet your operational and regulatory requirements.

Why Choose Polypac

Decades of sealing expertise and R&D partnerships with universities
Wide material range and customized manufacturing capacity
Proven durability for demanding, shock-prone environments

Contact Polypac to specify a Shock Resistant Seal for your application. Our team will recommend material, geometry and testing options to ensure reliable, long-lasting performance.

Product Image

Q&A

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.

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.

What is the difference between NBR and FKM materials?

NBR (Nitrile/Buna-N): A general-purpose, cost-effective material with excellent resistance to petroleum-based oils and fuels. It has a standard temperature range of -30°C to +100°C (-22°F to +212°F). FKM (Fluoroelastomer/Viton®): A premium material with excellent resistance to high temperatures (up to 200°C+), chemicals, and oils. It is used in more severe environments but is more expensive than NBR.

Get in Touch

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.

DSR Series Rod Seal | High-Pressure & Shock Resistant Step Seal Design

Polypac’s DSR Series Rod Seal features a heavy duty step seal design, delivering exceptional performance in high pressure and shock resistant applications. Engineered for durability, it ensures reliable sealing in demanding hydraulic systems. Ideal for long-lasting, high-pressure rod sealing needs.

DSR Series Rod Seal | High-Pressure & Shock Resistant Step Seal Design

HPT Piston Seal | High-Performance Hydraulic Seal for Heavy-Duty Cylinders

Polypac’s HPT Piston Seal is a high-performance hydraulic seal designed for heavy-duty cylinders. This shock resistant, abrasion resistant seal ensures long life and reliable performance in demanding industrial applications. Optimize cylinder efficiency with Polypac’s durable piston seal.

HPT Piston Seal | High-Performance Hydraulic Seal for Heavy-Duty Cylinders