Plastic Injection Mold Manufacturer in China
Choosing the right plastic injection mold manufacturer is a critical step for companies developing plastic products. The quality of the injection mold directly affects product precision, production efficiency, and long-term manufacturing costs.
Many international companies choose China for mold manufacturing because of its advanced machining capabilities, competitive tooling costs, and experienced engineering teams.
At CNMOULDING, we specialize in custom plastic injection mold manufacturing and injection molding services. Our factory is located in Shanghai and has been serving global customers since 1997.
With more than 25 years of experience and certifications including ISO9001 and ISO13485, we provide reliable mold manufacturing solutions for customers in automotive, medical, electronics, and industrial industries.
Our Plastic Injection Mold Manufacturing Services
We provide complete services from product design analysis to mold manufacturing and mass production.
Mold Design and Engineering
Our engineers analyze customer product designs using advanced CAD software and Moldflow simulation tools.
This helps identify potential manufacturing issues before mold production begins, such as:
shrinkage
warpage
filling imbalance
gate location problems
Early design optimization significantly reduces development time and tooling risks.
Precision Mold Manufacturing
Our mold workshop in Shanghai is equipped with advanced machining equipment including:
high-precision CNC machining centers
EDM machines
wire cutting systems
precision grinding machines
These technologies ensure high dimensional accuracy and stable mold performance.
Injection Molding Production
In addition to mold manufacturing, we also provide plastic injection molding services for production runs.
This allows customers to move quickly from mold development to mass production without needing multiple suppliers.
Industries We Serve
Our injection mold manufacturing services support customers across multiple industries.
Automotive Industry
Precision molds for automotive connectors, functional components, and interior plastic parts.
Medical Devices
High-precision molds for diagnostic equipment housings and medical components. Our production follows strict quality systems under ISO13485 certification.
Consumer Electronics
Injection molds for device enclosures, connectors, and structural components requiring excellent surface quality.
Industrial Products
Durable molds designed for engineering plastics used in industrial equipment.
Real Case Study: Industrial Connector Mold
A European industrial equipment manufacturer contacted our Shanghai engineering team to develop a mold for a PA66 reinforced connector housing.
Project requirements
Material: PA66 GF30
Production volume: 400,000 parts annually
Engineering Challenge
The product required tight dimensional tolerances and strong mechanical strength.
Glass fiber reinforced materials can cause significant mold wear if the wrong mold steel is selected.
Our Solution
Our engineers recommended:
H13 hardened mold steel
optimized cooling channel design
balanced gate system
Final Results
After mold manufacturing and testing:
stable injection molding production was achieved
mold durability improved significantly
production cycle time was reduced
The customer successfully launched the product and continues mass production with the same mold.
Why Choose Our Shanghai Mold Manufacturing Factory
Our injection mold manufacturing facility offers several advantages:
more than 25 years of mold manufacturing experience
complete services from mold design to production
strict quality control systems
advanced machining equipment
These capabilities allow us to provide reliable mold solutions for global customers.
Start Your Injection Mold Project
If you are looking for an experienced plastic injection mold manufacturer in China, our engineering team can review your design and provide professional manufacturing solutions.
Contact us today to discuss your project and receive support for injection mold design and plastic injection molding production.




