Injection Mold Manufacturing Services in China
Injection mold manufacturing is a critical step in producing high-quality plastic components. The precision of the mold determines product dimensions, surface finish, and production stability.

At CNMOULDING, we specialize in custom injection mold manufacturing and plastic injection molding services. Our Shanghai factory has been producing high-precision molds since 1997 for customers worldwide.

With decades of engineering experience and advanced manufacturing equipment, we provide reliable mold solutions for industries that demand precision and durability.


Our Injection Mold Manufacturing Process
Producing a high-quality injection mold requires careful engineering and precise machining.

Our typical mold manufacturing process includes the following steps.

Product Design Review
Before mold production begins, our engineers analyze the customer’s 3D product design.

Design review focuses on:

wall thickness distribution

draft angles

gate location

parting line position

This step helps identify potential molding problems early.

Mold Design
Once the product design is confirmed, our engineers create a complete mold structure design.

The mold design includes:

cavity and core structure

runner and gate system

cooling channel layout

ejection mechanism

Advanced CAD and simulation tools help ensure optimal mold performance.

Injection Mold Manufacturing Services in China
Injection Mold Manufacturing Services in China

Precision Machining
Our mold workshop uses high-precision equipment including:

CNC machining centers

EDM machines

wire cutting machines

These machines ensure that mold components meet strict dimensional tolerances.

Injection Mold Manufacturing Services in China
Injection Mold Manufacturing Services in China

Mold Assembly and Testing
After machining is completed, mold components are assembled and tested using injection molding machines.

Trial production verifies:

filling performance

cooling efficiency

part quality

Any necessary adjustments are made before final mold delivery.

Types of Injection Molds We Manufacture
Our factory manufactures a wide range of injection molds.

Automotive Molds
Precision molds for automotive connectors, housings, and functional components.

Medical Device Molds
High-precision molds used in medical equipment and healthcare products.

Electronics Molds
Injection molds for electronic housings and structural components.

Industrial Molds
Durable molds designed for engineering plastics used in industrial applications.

Injection Mold Manufacturing Services in China
Injection Mold Manufacturing Services in China

Real Case Study: Automotive Sensor Housing Mold
A European automotive supplier needed a high-precision mold for a sensor housing used in engine control systems.

Project details
Material: PBT
Production volume: 500,000 parts annually

Engineering Solution
Our engineering team designed a multi-cavity mold with optimized cooling channels to maintain dimensional stability during high-volume production.

Results
The final mold achieved:

stable mass production

excellent dimensional accuracy

consistent product quality

The customer continues to use the mold for long-term production.