Since 2001, HONGJIE has specialized in the manufacturing of rubber O-rings, seals, washers, diaphragms, grommets, and custom molded rubber components for industrial and OEM applications worldwide.
YEARS OF EXCELLENCE
HONGJIE was established in 2001, with an 11,000 square meters facility and existing 150 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 rubber O-rings to custom molded sealing components, Hongjie continues to expand its manufacturing capabilities, quality control, and global industry support.
HONGJIE combines rubber molding experience with scalable production capability to support both prototype and mass production requirements.
Rubber injection molding for precision O-rings, seals, grommets, and custom molded rubber parts using multiple rubber compounds.
Compression molding solutions for rubber washers, diaphragms, thick-wall seals, and large rubber components.
Die-cut rubber washers, flat gaskets, rubber discs, and diaphragm components for sealing and insulation applications.
Material options include NBR, EPDM, FKM, HNBR, Silicone, Fluorosilicone, Neoprene, SBR, ACM, and AEM compounds.
Production inspection includes dimensional checking, hardness testing, appearance inspection, and material control throughout manufacturing.
Engineering support for custom drawings, sample development, and rapid prototype production for OEM sealing projects.
Take a closer look inside our rubber manufacturing facility, where molding, inspection, and production processes support industrial sealing applications worldwide.
Standard Profiles
Own Factory
Parts Delivered
Defect Standard
HONGJIE follows standardized production management and quality control processes to support stable rubber product manufacturing for industrial applications.
Automotive and industrial rubber component production control
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
HONGJIE supports OEM and industrial customers with flexible manufacturing capability, custom rubber molding support, and stable production management.
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.
