Custom Injection Molding Manufacturer

RJCMOLD is a factory-direct plastic injection molding manufacturer based in Shenzhen, China, providing DFM support, in-house mold manufacturing, finishing, assembly, and custom production automation.

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Engineering DFM Support

In-House Mold Manufacturing

Custom Production Automation

10,000 m² Manufacturing Facility

ISO 9001 & ISO 13485 Certified

Manufacturing Capacity

Injection Molding Capacity

Equipment, production range, and material compatibility for low-volume and production molding.

Engineering support
Before Production

Engineering Support

Practical engineering review from part design through mold trials and sample validation.

We review wall thickness, draft, ribs, bosses, undercuts, parting lines, and molding risks before tooling starts.

Materials are reviewed against mechanical, appearance, temperature, environmental, and molding requirements.

We evaluate mold structure, cavity layout, gating, cooling, ejection, and production requirements before toolmaking.

Machining, fitting, assembly, mold trials, and adjustments are handled by our internal tooling team.

Initial molded samples are reviewed for dimensions, appearance, assembly, and function before production approval.

Process Control

Quality Control

Inspection checkpoints help maintain consistency from project requirements to final shipment.

Drawings, specifications, critical dimensions, appearance standards, and inspection requirements are confirmed before production.

Initial parts are checked against agreed requirements before stable production proceeds.

Production conditions and critical part characteristics are monitored at defined stages during molding.

Finished parts are inspected for dimensions, appearance, quantity, and packaging before shipment.

ISO 9001Quality Management
ISO 13485Medical Device Quality
CMM Inspection of Mold Components
Industries We Serve

Custom Injection Molding for Different Industries

Why Choose Us

Why Choose RJCMOLD as Your Injection Molding Manufacturer?

Factory-direct production, engineering support, precision tooling, and long-term experience with global customers.

Factory-Direct Manufacturing

Work directly with the factory for tooling, injection molding, finishing, and assembly.

DFM Engineering Support

Our engineers review part design, material choice, and molding risks before tooling starts.

Precision Tooling Capability

Mold machining accuracy up to ±0.01 mm for selected tooling features.

15+ Years with Global Customers

Experience supporting customers in Europe, North America, and other global markets.

RJC Cooperating Customers

Experts in Manufacturing

RJCMOLD has served for tool making, injection mold manufacturing, plastic injection molding and cnc machining.

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An injection molding company with over 20 years of experience

RJC was established in 2002, in-house molding workshop is equipped with a full manufacturing system, including CNC machining centers, EDM, and wire cutting. We use certified steel grades such as P20, S136, and H13, and build molds to DME and HASCO standards. Our team provides complete mold design, manufacturing, testing, and pre-shipment verification. We also offer precision plastic injection mold manufacturing and global mold export services.

RJC American factory
injection mold manufacturer in china

RJC operates a 107,580 sq ft industrial facility in Shenzhen, China, along with a 10000 sq ft office and manufacturing site in California, USA.

We are certified to ISO 9001, IATF 16949, and ISO 13485 standards, and comply with FDA regulations.

Our CNC machining workshop is equipped with over 80 machines, achieving precision up to ±0.01mm.

The molding workshop includes more than 50 machines ranging from 100 to 1000 tons to meet different production requirements.

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Four simple steps

Custom Prototypes and Parts Delivered on Time with Four Simple Steps