Since 2001, we've been engineering precision rubber seals and custom-molded components for the world's most demanding industries.
YEARS OF EXCELLENCE
HONGJIE was established in 2001, with an 11,000 square meters facility and existing 300 employees. We offer a wide selection of industrial rubber components such as rubber o-rings, backup-rings, washers, diaphragms, grommets and custom molded seals by injection molding, compression molding, and die-cutting. All rubber products are strictly controlled in each process.
From humble beginnings to global recognition, every milestone reflects our unwavering commitment to quality and innovation in rubber sealing technology.
Our vertically integrated facility combines precision engineering with scalable production capacity, ensuring consistent quality from prototype to mass production.
Our engineers collaborate with your team from concept through production, optimizing seal geometry, groove design, and material selection to ensure peak performance in your
Full 3D modeling and FEA simulation capabilities ensure your seal designs are validated before tooling begins. We support STEP, IGES, and all major CAD formats for seamless collaboration.
With access to 200+ rubber compounds, our material scientists help you select the optimal elastomer for temperature, chemical, pressure, and regulatory requirements.
Get functional prototypes in as little as 48 hours using our in-house tooling and molding capabilities. Validate form, fit, and function before committing to production tooling.
Comprehensive in-house testing including hardness, tensile strength, compression set, chemical resistance, and accelerated aging ensures your seals meet all specifications.
Continuous improvement through statistical process control (SPC), Six Sigma methodologies, and lean manufacturing principles to reduce waste and ensure
Take a look inside our 11,000 m² manufacturing facility where precision meets production at scale, every single day.
Standard Profiles
Own Factory
Parts Delivered
Defect Standard
Our certifications demonstrate our commitment to quality, safety, and regulatory compliance across every product we manufacture.
Quality Management System for consistent production excellence
Underwriters Laboratories safety certification for electrical applications
National Sanitation Foundation approval for drinking water contact materials
Water Regulations Advisory Scheme for UK & European water industry compliance
When failure is not an option, manufacturers trust HONGJIE. Here's what sets us apart from the competition.
Prototypes in 5–7 days. Production runs shipped within 15–20 business days. Emergency orders available for critical timelines.
100% inspection on critical dimensions. Statistical process control (SPC) on every production run. C=0 acceptance sampling plans.
ON-TIME DELIVERY
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Our engineering team reviews your specs and responds within 24 hours with material recommendations and competitive pricing.
