• Precision Rubber O-Rings & Seals Manufacturer

    Specializing in high-tolerance rubber sealing solutions. IATF 16949:2016 certified manufacturing for Automotive, Medical, and Industrial sealing systems.

    Request an O-Ring Quote
  • Custom Molded Rubber Components Made Simple

    From CAD design to prototype and mass production. We engineer complex rubber parts to solve your specific leakage and pressure challenges.

    Start Custom Molding Project
  • High-Performance Material Experts

    Precision-molded FKM, FFKM, EPDM, and NBR. FDA & NSF compliant materials engineered for extreme temperatures, high pressure, and harsh chemical resistance.

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  • Large-Scale Factory-Direct Quality Control

    11,000m² facility with advanced injection & compression molding. Delivering 50M+ precision-inspected rubber seals to global Tier-1 suppliers annually.

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Our
Certifications
  • IATF Certificate
  • ISO13485:2016 Certifed
  • UL Certificate
  • FDA Certificate
  • NSF Certificate
ABOUT HONGJIE

Leading Manufacturer
for High-Performance Seals

Established in 2001, HONGJIE operates an 11,000m² facility with 150 employees. After 23 years of continuous improvement, we have transitioned to semi-automated production, reducing manual dependence while increasing precision and efficiency. We specialize in industrial rubber components—including o-rings, washers, and custom seals—ensuring strict quality control at every stage.

  • 3,500+

    Standard Profiles

  • 11,000

    Own Factory

  • 50M+

    Parts Delivered

  • C=0

    Defect Standard

Manufacturing

Direct-from-Factory Manufacturing

From custom mold design to automated production and rigorous in-line testing, our manufacturing process is optimized for precision, batch consistency, and reliable performance in demanding industrial environments.

  • Advanced Automated Rubber Production

    Equipped with state-of-the-art automated injection and compression molding lines, ensuring high-efficiency production and consistent part geometry for large-scale orders.

  • High-Precision Molding Machinery

    Utilizing high-speed automated molding and precision cutting systems, we maintain micron-level accuracy to meet the most demanding engineering specifications.

  • Rigorous Quality Control Systems

    Every batch undergoes rigorous lab testing, including tensile strength, abrasion resistance, compression set, and low-temperature performance analysis to ensure zero defects.

  • Global Supply Chain Logistics

    Seamless supply chain integration with localized warehousing and fast-track shipping options, serving industrial partners across North America, Europe, and Asia.

Customization process

From Drawing to Delivery Custom Your Seals

Our streamlined 4-step process transforms your vision into high-performance reality. We work alongside your engineering team to ensure rapid prototyping, cost-effective tooling, and precision-manufactured results.

Consultation

Share your specifications, CAD drawings, or physical samples.

Engineering

Expert material selection and custom mold tool design by our senior engineers.

Production

High-precision molding with real-time in-line quality inspections.

Delivery

100% inspected, secure industrial packaging, and on-time global shipping.

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Products

Featured Products

High-performance rubber components. IATF 16949-certified O-rings and custom molded parts for demanding industrial applications.

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