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
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
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
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.
Quality Control
Quality assurance is essential for reliable mold manufacturing.
Our facility operates under certified quality systems including:
ISO9001 certification
ISO13485 certification
Inspection equipment such as coordinate measuring machines (CMM) ensures high dimensional accuracy of mold components.
Contact Our Injection Mold Manufacturing Team
If you are developing a plastic product and need reliable injection mold manufacturing services, our engineering team can provide professional support from mold design to mass production.
Contact CNMOULDING today to start your injection mold project.





