• Gas spring oil seal,Gas Spring Oil Seal - Metal Skeleton NBR Seals Design
  • Gas spring oil seal,Gas Spring Oil Seal - Metal Skeleton NBR Seals Design
  • Gas spring oil seal,Gas Spring Oil Seal - Metal Skeleton NBR Seals Design
  • Gas spring oil seal,Gas Spring Oil Seal - Metal Skeleton NBR Seals Design

Gas spring oil seal

PQK oil seal of the gas spring innovatively adopts an integrated design of dynamic and static sealing. Through a unique lip structure, it takes into account both flexible adaptability and excellent sealing performance. The metal skeleton and high-performance rubber are bonded at the molecular level with high strength through a precise molding process, providing stable support for the lip and ensuring an ideal pressure distribution under complex working conditions.

This oil seal has excellent wear resistance and pressure resistance. With a scientifically optimized sealing structure, it can calmly handle long-term high-frequency friction and continuous vibration, effectively resisting wear, fatigue, and aging. In the static sealing state, it can maintain a stable high-pressure holding force, completely preventing medium leakage. During dynamic operation, it can achieve smooth opening and closing with extremely low starting resistance, ensuring the precise response and long-term operation of the gas spring. This sealing solution that combines dynamic and static sealing provides a solid guarantee for the reliable operation of the gas spring in various mechanical equipment. 
  • Gas spring oil seal,Gas Spring Oil Seal - Metal Skeleton NBR Seals Design
  • Gas spring oil seal,Gas Spring Oil Seal - Metal Skeleton NBR Seals Design

Description

Dynamic-Static Sealing for Industrial Gas Springs

This gas spring oil seal is engineered primarily for equipment manufacturers and maintenance specialists seeking a high-reliability sealing system in gas spring assemblies. It effectively integrates dynamic and static sealing elements, targeting applications that require continual piston rod movement alongside stationary cylinder walls. The seal suits sectors demanding durable long-term operation with minimal leakage, including automotive gas struts and industrial machinery gas springs. Designed to complement existing systems, it supports operational efficiency while minimizing downtime for routine servicing.


Advanced Material Composition and Structural Features

Constructed from premium NBR seals or FKM rubber elastomers bonded firmly to a metal skeleton, the seal features a unique protruding lip geometry with sealing beads on both inner and outer surfaces. This design ensures optimal compression upon installation, providing effective contact with both moving and static parts. The built-in anti-extrusion and oil-scraping elements enhance resistance to high pressures and wear, extending service life beyond ten years. The seal exhibits low starting resistance, promoting smooth operations under diverse load and speed conditions, critical for reducing mechanical stress in industrial assemblies.


Broad Industry Applications and Operational Benefits

Widely applicable in automotive gas struts, furniture gas springs, and high-cycle mechanical devices, this gas spring oil seal contributes to maintaining gas containment under fluctuating pressures and vibration. Its robust design reduces leakage and wear, essential for systems exposed to high-frequency movement. By ensuring a consistently reliable seal, it reduces maintenance frequency and improves overall equipment availability. This solution is especially beneficial where long-term durability and airtight sealing are required in confined or vibration-prone environments within manufacturing and OEM applications.




Product Advantages


Design and Structural Integrity Enhancements

The gas spring oil seal incorporates a metal skeleton bonded with NBR seals, providing structural rigidity while maintaining elasticity essential for sealing performance. The specialized protruding lip geometry with sealing beads optimizes material compression and ensures an even distribution of load, enhancing sealing reliability. Integrated anti-extrusion features prevent deformation under high pressure, critical for applications where gas springs operate at variable loads. This combination of materials and design elements aids smooth integration into gas spring assemblies without compromising fit or function, meeting stringent industrial standards.


Operational Efficiency and Maintenance Reduction Benefits

From a performance perspective, the seal’s low starting resistance reduces operational friction, minimizing wear on both the seal and moving piston rods. This leads to extended component life and less frequent service intervals. The reliable dynamic-static sealing delivered by the NBR seals ensures gas retention under high-frequency cycles, promoting consistent force control in gas springs. This product’s long service life, exceeding ten years, supports cost-effective maintenance planning and ROI improvement for facility managers and engineers. It offers dependable sealing that meets industrial expectations for seal longevity and functional stability.




A high-performance gas spring oil seal is not just a simple rubber ring, but a combination of multiple functional elements. Key design features include:

Composite Main Material: Usually made of rubber elastomers (e.g., Nitrile Rubber / NBR, or Fluorocarbon Rubber / FKM) to provide the primary compression force and sealing stress.

Special Protruding Lip Geometry (Sealing Beads): The inner and outer surfaces of the seal typically feature multiple annular "beads" or "lips" with specific radii protruding in defined directions.

Function: After installation, these beads are compressed to create a defined contact stress, allowing the seal to firmly grip the moving piston rod and the stationary cylinder wall.

Built-in Anti-extrusion / Oil-scraping Element:


Function: Its main purpose is to prevent gas molecules from permeating through the rubber material itself, which is essential for achieving a service life of 10 years or more.


Use Scenarios


Seal Replacement in Automotive Gas Strut Systems

In automotive manufacturing and repair workshops, gas springs require precise sealing to maintain controlled motion and gas retention. This gas spring oil seal serves as a reliable replacement part for worn or damaged seals in vehicle gas strut assemblies, restoring performance and preventing leakage that could impair functionality. Its advanced sealing bead geometry and anti-extrusion system accommodate the dynamic stresses of daily vehicle use. The seal’s compatibility with NBR seals ensures it meets OEM specifications, integrating seamlessly within the gas spring infrastructure to uphold consistent operating pressures in various temperature and load scenarios.


Application in Industrial Machinery with High-Frequency Movement

Industrial equipment involving gas springs subjected to high-frequency cycling, such as packaging machines or mechanical presses, demands seals that withstand continuous friction and vibration. This gas spring oil seal reduces leakage and wear by combining dynamic and static sealing functions while supporting low friction at start-up. Its robust material construction, including NBR seals, ensures prolonged service life even under harsh operational conditions. By providing tight sealing under variable pressures, it maintains system efficiency and reduces downtime in production environments where reliability is paramount for sustained throughput and equipment integrity.




FAQ 


What materials are used in your gas spring oil seals?

We manufacture our gas spring oil seals using premium rubber elastomers, specifically NBR seals or FKM, bonded with a durable metal skeleton. This combination ensures high wear resistance and reliable sealing performance under dynamic and static conditions, suitable for demanding applications.


Can you customize seals for specific gas spring applications?

Yes, we can customize seals to meet particular technical requirements. Our advanced production facilities and R&D expertise allow us to adapt lip geometry, materials, and dimensions, ensuring compatibility with specialized gas spring designs or OEM needs, including those requiring high pressure or vibration resistance.


How do I install your gas spring oil seal to ensure optimal sealing?

Proper installation requires compressing the special sealing beads onto the piston rod and cylinder wall to achieve firm grip. Our seals incorporate anti-extrusion and oil-scraping elements to maintain lubricant retention and prevent leakage under stress, enhancing service life and performance consistency.


Do you provide logistics and support for bulk orders of seals?

We support industrial buyers with reliable logistics and professional customer service for orders of all sizes. As a leading China seals manufacturer with efficient ERP-based management, we ensure timely delivery and technical consultation for high volume purchases of high pressure oil seal products.

ABOUT US

Zhejiang Shangyu Oil Seal Co., Ltd. was founded in 1969  in China. PQK mainly produces oil seals ,O-rings ,Adhesive bonded seals,rubber products for the domestic and foreign automotive industry, household appliances, industrial machinery,  Technical Committee  PQK has obtained 46 national invention and utility model patents.
PQK has ISO 9001:2000 and IATF16949  certification. internal management system by ERP.  products are used as supporting products for many domestic and foreign companies.PQK has the entire production capacity for rubber seals, including product R&D.  Automatic high-speed punching machines for the production of rubber seals, numerically controlled metal processing , automatic injection vulcanizing machines, numerically controlled cutting , digital testing equipment, etc

Our Certificate

We firmly adheres to the concept of compliance, ensuring every product is reliable and safe to use.

CONTACT US

If you have any queries, get in touch today! Don't hesitate. We try to take the extra step for our customer satisfaction.
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