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The Best Custom Make
Rubber Seals Manufacturer

As a leading custom molded rubber seals manufacturer in China since 2000, Jinpeng Rubber delivers precision-engineered O-rings, X-rings, oil seals, flat gaskets, rubber-to-metal bonded parts, and medical-grade rubber components. Trusted by over 2,675 clients globally.

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18+
Years of Experience
389
Professional Staff
2675+
Satisfied Clients
56,000+
Finished Projects

About Jinpeng Rubber

Established in 2000 and located in Heze City, Shandong Province, China, Jinpeng Rubber is a leading domestic sealing solutions supplier with over 18 years of expertise. Covering an area of 12,000 square meters, we specialize in custom-made rubber products for industries including automotive, mining, agriculture, home appliances, railways, and medical devices.

Our product range includes O-rings, X-rings, wire seals, oil seals, flat rubber gaskets, rubber-to-metal bonded components, and medical rubber seals. We support full customization from material formulation to mold design and mass production.

Medical Rubber Seal Rubber Caps

Our Capabilities

From concept to delivery, we offer end-to-end rubber product development.

Design & Customization

We have strong rubber customization capabilities and provide full-process solutions from material formula R&D, mold design, to finished product production. Using advanced mixing technology and precision machining, we can adjust hardness, elasticity, and weather resistance to meet specific needs in automotive, medical, industrial, and other applications.

Rapid Sampling

Leveraging digital rapid prototyping and high-precision CNC equipment, we deliver first samples within 72 hours. Our vulcanization lines support small-batch trials, and we provide full testing reports (Shore hardness, tensile strength, aging resistance). With a PLM system, we ensure seamless data integration and multiple mold iterations for perfect performance matching.

Our Products

High-performance rubber seals and components for diverse industrial applications.

O-Ring

O-Ring

Available in NBR, FKM, EPDM, CR, and Silicone. Standard or non-standard sizes. Used in hydraulic, pneumatic, and automotive systems.

X-Ring

X-Ring

Double-lip sealing design for enhanced performance. Ideal for dynamic applications requiring low friction and high durability.

Auto Parts Silicone

Auto Parts Silicone

High-temperature resistant silicone rubber components for automotive engines, HVAC, and electrical systems.

Medical Rubber Seal

Medical Rubber Seal

Biocompatible seals for medical devices and catheters. Compliant with ISO 10993 and other medical standards.

Rubber Caps

Rubber Caps

Protective end caps for tubes, rods, and connectors. Custom shapes and durometers available.

Quad Ring

Quad Ring (Q-Ring)

Four-lobed sealing profile for superior performance in reciprocating and rotary applications.

Rubber-to-Metal Bonded

Rubber-to-Metal Bonded

Durable bonded assemblies for shock absorption, vibration damping, and structural sealing in heavy machinery.

Flat Rubber Gasket

Flat Rubber Gasket

Precision-cut gaskets for flange sealing in pipelines, pumps, and compressors. Custom thickness and shapes.

Wire Seal

Wire Seal

Metal-reinforced rubber seals for high-pressure environments. Commonly used in aerospace and oil & gas.

Oil Seal

Oil Seal

Lip-type seals for retaining lubricants and excluding contaminants in rotating shafts. Made from NBR, FKM, or silicone.

Our Work Process

From inquiry to delivery — fast, reliable, and precise.

1

Send Project Info

Share drawings, material specs, quantity, and application details.

2

Confirm Design & Material

We design or adjust based on your input. Drawing approval required.

3

Sampling & Approval

We produce samples and send for your confirmation within 72 hours.

4

Mass Production

Fast turnaround — typically within 20 days after order confirmation.

Latest News

March 26, 2025

Top 10 Chinese Rubber Products Companies

According to the latest industry data in 2025, combined with market share, innovation, and export volume, Jinpeng Rubber ranks among the top 10 rubber product manufacturers in China.

January 10, 2025

Research on Sealing & Friction Characteristics of O-Ring

O-ring is a commonly used sealing device for cylinders. Our latest study improves understanding of friction behavior under dynamic conditions, enhancing seal life and efficiency.

May 23, 2024

Standard for Customized Rubber Parts for Chinese Ships

In China, the standards for customized marine rubber parts are evolving. We comply with CB, GB, and ISO standards for shipboard sealing applications.

Get in Touch

Have a custom rubber seal project? Send us your requirements and get a quote within 6 hours.

Phone: +86 171 3213 0766
Email: sales@jinpeng-rubber.com
Address: 220NO, Jinpeng Rubber Road, Shuangqiao Xiang, Yuncheng County, Heze City, Shandong Province, China 274700
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