Since 2001, Hongjie has manufactured custom molded and extruded rubber components for electrical equipment OEMs, including grommets, bushings, gaskets and protective covers. Parts are developed around the equipment’s cable-routing, insulation and protection requirements.
Production follows IATF 16949:2016 and ISO 13485:2016 quality systems, with UL-certified material options for electrical applications. Precision-molded components are supplied to buyers in more than 45 countries.
Electrical and electronics OEMs specify rubber parts wherever insulation, sealing, or vibration control affects safety and equipment life:
Material selection depends on insulation requirements, operating temperature, weather exposure and expected seal life. Common options include EPDM, silicone (VMQ), neoprene (CR) and NBR, with each compound suited to different equipment conditions.
Across the available compounds, Hongjie covers a service range from −60°C to +325°C. Resistance testing against more than 500 fluids, gases and chemicals helps confirm material performance in the actual equipment environment before tooling begins.
From standard profiles to drawing-based components, Hongjie supports electrical equipment programs with in-house tooling, material development and production control.
More than 3,500 existing tools support standard grommet and gasket profiles, while custom parts are molded from customer drawings in the same facility.
The compound library includes options for electrical insulation, heat resistance, weather exposure and chemical contact.
Functional prototypes can typically be shipped within 3–5 business days after the drawing and material requirements are approved.
More than 25 engineers support CAD and FEA review, material selection and groove or sealing geometry development.
More than 50 million precision-inspected parts are delivered annually to Tier-1 suppliers in more than 45 countries.
For outdoor, wet or ozone-exposed panels, EPDM rubber grommets provide a material-specific option.
For enclosure lids, doors and housings that need protection against water ingress, see waterproof rubber seals.
Upload a drawing or sample for an OEM quote, or start a project discussion with Hongjie's engineering team to confirm materials and certification fit for your equipment.
Explore complementary sealing solutions from our comprehensive product catalog.
