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High-Precision Injection Molding & Mold Manufacturing

Dongguan-based expert in plastic & MIM molds for automotive, medical, electronics, and optical industries. From concept to mass production — fast, precise, and cost-effective.

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About HZHeYi Group

Established in 2014, HZHeYi Group is a leading plastic and MIM mold manufacturer based in Dongguan, China. We specialize in high-precision injection molds, precision parts processing, and full assembly services for global clients in Europe, North America, and Japan.

Our mission is to provide one-stop manufacturing solutions — from R&D design and mold making to injection molding and final assembly. We work closely with customers to understand their product requirements and accelerate time-to-market efficiently and cost-effectively.

10+
Years Experience
400+
Annual Mold Output
0.002mm
Dimensional Precision
HZHeYi Factory Interior

Our Capabilities

Precision Mold Making

Cavity dimension precision up to 0.005mm, overall dimensions to 0.002mm. Specializing in 2K, 3K, cold/hot runner, and no-flow-mark molds.

Injection Molding

Full-cycle plastic component manufacturing and assembly. From concept to mass production with optimized cycle times.

Engineering & R&D

Dedicated engineering team for design, simulation, and project management. Customer-focused development process.

MIM Metal Parts

Specializing in metal injection molding for 3C, automotive, and medical precision components.

Optical & Lighting

Complete LED, crystal, and optoelectronic product line with full testing and packaging capabilities.

Quality Assurance

Rigorous inspection, full pre-shipment testing, and certified processes to exceed customer expectations.

Our Products

Automotive Parts

Automotive Parts

High-precision plastic components for vehicles. 8 sets of molds designed and manufactured rapidly with professional expertise.

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Precision Molds

Precision Molds

Cavity precision up to 0.005mm, overall dimensions to 0.002mm. Ideal for medium and small-sized high-accuracy applications.

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Medical Parts

Medical Parts

Cold runner, hot runner, and no-flow-mark molds for sterile and high-reliability medical devices.

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Gears

Gears

Customized precision gears with annual output exceeding 400 sets. Tailored to technical specifications.

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Plastic Parts

Plastic Parts

One-stop production for high-precision plastic and metal-plastic hybrid components.

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Lamp & Lighting

Lamp / Light Products

Complete production line: cleaning, mounting, welding, assembly, testing, and packaging for LED systems.

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MIM Metal Parts

MIM Metal Parts

Precision metal injection molded parts for 3C electronics, automotive, and medical equipment.

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Optical Products

Optical Products

R&D, production, and sales of LED, crystal materials, and optoelectronic components with market-driven innovation.

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Fan Blades

Fan Blades

Aerodynamically optimized fan blade designs for superior performance and customer satisfaction.

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Why Choose HZHeYi?

01

R&D Design

Close collaboration with clients from concept to production. Full understanding of functional requirements ensures optimal design and performance.

02

Precision Machining

Cutting-edge CNC equipment and strict process control ensure molds are completed with exceptional accuracy and consistency.

03

Quality Assurance

Full inspection and testing before shipment. Rigorous quality control team and advanced equipment guarantee excellence.

04

After-Sale Support

Customer success is our goal. We grow together with honesty, innovation, and excellence at the core of our service philosophy.

10+
Years in Business
400+
Molds Annually
0.002mm
Precision Tolerance
30+
Global Clients

Frequently Asked Questions

What types of molds do you specialize in?

What is your dimensional accuracy?

Do you offer MIM metal parts?

Where are you located?

Can you handle full product assembly?

Get in Touch

Ready to start your next project? Contact HZHeYi Group for high-precision molding solutions.

Contact Information

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