Chengxin Leads the Way—Anti-Extrusion O-Ring Sealing Elements

Chengxin Sealing King’s anti-extrusion rings provide professional-grade sealing solutions. Our superior technology and precise design ensure that your equipment operates stably and efficiently even under extreme working conditions. We are committed to protecting your critical equipment, significantly enhancing its performance and service life, so you can focus on your core business with complete peace of mind.

High Pressure Extrusion

Are O-rings deforming and being squeezed out under high pressure, causing frequent leaks and downtime?

The lifespan is too short

Are you facing frequent seal replacements and persistently high labor and downtime costs?

Pressure Loss

Is poor sealing causing system inaccuracies and significantly reducing production efficiency?

When faced with high-pressure challenges, Chengxin Sealing King provides you with professional High-Performance Support Rings and Anti-Extrusion Solutions . By combining high-strength materials with a precision cross-sectional design, we effectively fill gaps between hardware components, completely preventing O-rings from being squeezed out or deformed under high pressure. Not only does this double the service life of the seals and significantly reduce downtime and replacement costs, but it also ensures stable system pressure, allowing your hydraulic equipment to consistently maintain peak precision and production efficiency.

Precision Manufacturing Technology

Manufactured using imported high-precision CNC equipment, with precise and meticulous control of dimensional tolerances, ensuring that every anti-extrusion ring fits your equipment perfectly. Strict quality control processes are in place, with checks at every stage from raw materials to finished products.

Selection of High-Quality Materials

We offer a variety of material options, including PTFE, nylon, and POM, with a temperature range of -40°C to +200°C, making them suitable for a wide range of demanding operating environments. All materials are internationally certified and comply with environmental standards such as RoHS and REACH.

Extensive Inventory of In-Stock Items

We maintain over 1,000 SKUs in stock, with standard items shipped the same day and expedited delivery for custom specifications. We understand the cost of downtime, which is why we’ve established a comprehensive inventory management system to ensure availability whenever you need it.

Professional Technical Support

Our engineering team, with 20 years of experience in sealing technology, provides comprehensive services including product selection consulting, installation guidance, and troubleshooting. We don’t just sell products—we’re your partner in sealing technology, helping you optimize your sealing system design.

Chengxin Sealing King anti-extrusion rings have been successfully applied across a wide range of industries, providing reliable sealing protection for thousands of pieces of equipment. No matter how harsh the operating conditions your equipment faces, we have the right solution for you.

Machine Tool Industry

The hydraulic systems of precision machine tools—such as CNC machining centers, lathes, and milling machines—require high-precision sealing solutions to ensure machining accuracy. Our anti-extrusion rings can withstand frequent reciprocating motion, maintain long-term sealing performance, and reduce machine downtime for maintenance.

Plastic Injection Molding Machine

The hydraulic systems of injection molding machines operate at high pressures and experience significant temperature fluctuations, placing extremely stringent demands on seals. Chengxin Sealing King provides high-temperature and high-pressure resistant anti-extrusion rings to ensure the stable operation of injection molding machines and improve product yield.

Construction Equipment

Construction machinery such as excavators, cranes, and concrete pump trucks operates in harsh environments, where sealing systems face multiple challenges, including dust, vibration, and temperature fluctuations. Our heavy-duty anti-extrusion rings are specially designed to provide long-term, reliable performance under severe conditions.

Automation Equipment

Pneumatic and hydraulic drive systems, robot joints, lifting platforms, and other components in automated production lines all require precision sealing assemblies. We provide sealing solutions that meet Industry 4.0 standards to help you achieve smart manufacturing.

Technical Specifications

Material Selection

PTFE, filled PTFE, nylon, POM

Hardness Range

Shore D 60–85

Temperature range

-40°C to +200°C

Pressure resistance

Up to 700 bar

Specification Range

Inner diameter: 4 mm to 500 mm

Surface treatment

Precision grinding, Ra ≤ 0.8 μm

Product Features

Low coefficient of friction, reducing system energy consumption
Excellent chemical resistance; suitable for a wide range of media
Excellent dimensional stability; does not warp even with long-term use
Customizable designs to meet specific needs

Recommendations for Material Selection

PTFE

Excellent chemical resistance; suitable for corrosive media.

Nylon

High strength and high wear resistance, suitable for high-pressure dynamic seals.

POM

Excellent mechanical properties and optimal cost-effectiveness.

01Professional Consultation

Our engineers will provide a free assessment of your application needs and recommend the most suitable solution.

02Sample Testing

We will provide samples for actual testing to verify that their performance meets your expectations.

03Rapid delivery

We’ll quickly arrange production after your order is confirmed to ensure your project stays on schedule.

04Installation Support

Detailed installation instructions and live online support

05Ongoing Services

Long-term technical support and regular follow-ups ensure the system runs smoothly

Cheng Hsin Seal King not only provides high quality products, but also emphasizes the long-term cooperation relationship with customers. Our technical team is always on standby to assist you in solving all kinds of sealing-related technical problems, ensuring that your equipment always maintains the best running condition.

Let Chengxin Sealing King help you solve your sealing challenges

No matter what sealing challenges you face, Chengxin Sealing King can provide professional solutions. Our technical team is always ready to assist you, offering comprehensive support from needs analysis to product delivery.

Contact us now to take advantage of the following offers: