China Injection Mold Manufacturer

 

Custom Plastic Injection Mold Solutions from Shanghai

China has become one of the world’s leading destinations for plastic injection mold manufacturing. Many international companies choose Chinese suppliers because of strong engineering capabilities, competitive tooling costs, and efficient production capacity.

However, selecting the right China injection mold manufacturer is critical. The quality of the mold directly affects product performance, production stability, and long-term manufacturing costs.

At CNMOULDING, we have been manufacturing custom injection molds in Shanghai since 1997. With more than 25 years of industry experience, our team supports global customers with reliable mold design, mold manufacturing, and plastic injection molding production.

Our factory operates under strict quality management systems including ISO9001 and ISO13485 certification, ensuring consistent quality for demanding industries such as automotive, medical devices, electronics, and industrial equipment.

Why Choose a China Injection Mold Manufacturer

Over the past two decades, China has built a highly advanced mold manufacturing industry. Many companies worldwide rely on Chinese mold suppliers for product development and mass production.

Competitive Tooling Cost

Compared with Europe and North America, injection mold manufacturing in China typically costs 30–50% less, while maintaining high manufacturing standards.

Efficient supply chains and experienced engineers allow Chinese manufacturers to deliver high-quality molds at competitive prices.

Strong Engineering Experience

Many Chinese mold manufacturers have extensive experience in plastic mold design and injection molding processes.

Experienced engineers can optimize product structures and mold designs to prevent common manufacturing problems such as:

• shrinkage

• warpage

• flash

• short shots

Early engineering analysis helps reduce development risks and shorten production lead times.

Fast Production Lead Time

Advanced machining equipment and mature manufacturing processes allow Chinese mold factories to produce molds quickly.

For most projects, mold manufacturing can typically be completed within 4 to 6 weeks, depending on mold complexity.

This helps companies accelerate product development and enter the market faster.

About Our Shanghai Mold Manufacturing Factory

[caption id="attachment_4800" align="alignnone" width="300"] Automotive Injection Molding & Tooling[/caption]

CNMOULDING is a professional plastic injection mold manufacturer located in Shanghai, China.

Founded in 1997, our factory has accumulated decades of experience in mold manufacturing and injection molding production.

Our capabilities include:

• custom injection mold design

• precision mold manufacturing

• plastic injection molding production

• mold testing and quality inspection

Our engineering team works closely with customers to ensure that mold design and manufacturing meet both product requirements and production efficiency goals.

Industries We Serve

Our injection mold manufacturing services support customers across multiple industries.

Automotive Industry

Precision molds for connectors, sensor housings, and interior plastic components.

Medical Devices

High-precision molds used in diagnostic equipment, medical housings, and healthcare components. Our manufacturing processes follow strict quality standards under ISO13485 certification.

Consumer Electronics

Injection molds for electronic housings, connectors, and structural plastic parts requiring excellent dimensional accuracy and surface quality.

Industrial Equipment

Durable plastic components manufactured using engineering plastics for industrial applications.

Real Customer Case: Automotive Connector Mold

A European automotive supplier contacted our Shanghai team to develop a mold for a high-precision connector housing used in vehicle electronics.

Project requirements

Material: PA66 GF30
Production volume: 500,000 parts per year
Tolerance requirement: high dimensional precision

Engineering Solution

Our engineers reviewed the product design and optimized the mold structure to improve filling balance and cooling efficiency.

Key improvements included:

• optimized gate location

• improved cooling channel design

• selection of durable mold steel

Production Results

After mold testing and process optimization:

• stable injection molding production was achieved

• product dimensional accuracy met customer specifications

• mold durability supported long-term production

The customer continues to use the mold for ongoing mass production.

Quality Control and Certifications

Reliable mold manufacturing requires strict quality control throughout the production process.

Our factory operates under certified quality systems including:

• ISO9001 quality management system

• ISO13485 medical manufacturing certification

Advanced inspection equipment such as coordinate measuring machines (CMM) ensures that mold components and molded parts meet precise dimensional requirements.

Work With a Reliable China Injection Mold Manufacturer

Choosing the right injection mold manufacturer can significantly improve product development efficiency and production reliability.

With more than 25 years of experience, CNMOULDING provides professional support from product design evaluation to mold manufacturing and injection molding production.

If you are looking for a reliable China injection mold manufacturer, our engineering team can help review your design and recommend the most efficient manufacturing solution.

Contact us today to discuss your project and receive expert support for mold manufacturing and plastic injection molding.

 

Professional Insert Molding Services in China

 

Insert molding is a plastic injection molding process where a pre-formed component is placed into a mold and plastic is injected around it to create a single integrated part.

At CNMOULDING, we provide high-quality insert molding services in China, helping customers produce strong, reliable, and cost-effective components.

What is Insert Molding?

Insert molding involves placing inserts such as metal components into a mold cavity before injection.

During the process:

• Inserts are positioned in the mold

• Molten plastic is injected around them

• The plastic solidifies, forming a single integrated part

This eliminates the need for secondary assembly.

Advantages of Insert Molding

Insert molding offers key structural benefits:

Strong Mechanical Bonding

Plastic tightly surrounds the insert, creating high strength.

Reduced Assembly Cost

Multiple parts are combined into one, reducing labor.

Improved Product Reliability

Fewer assembly steps mean fewer failure points.

Better Structural Performance

Ideal for components requiring strength and durability.

Applications of Insert Molding

Insert molding is widely used in engineering and industrial applications.

Automotive

• Electrical connectors

• Sensor components

• Threaded parts

Medical Devices

• Precision instrument components

• Embedded connectors

Electronics

• Connectors

• Cable assemblies

Industrial Products

• Fasteners

• Structural plastic parts

Materials Used in Insert Molding

Common materials include:

• ABS

• PC

• Nylon (PA)

• POM

Insert materials include:

• Brass

• Stainless steel

• Aluminum

Insert Molding vs Overmolding

Insert molding is often confused with overmolding, but they serve different purposes.

 Overmolding is used to combine multiple plastic materials, often for improved grip, sealing, or appearance.

For a full explanation, visit:

Overmolding Process

Our Insert Molding Capabilities

We provide complete insert molding solutions:

• Insert mold design

• Precision mold manufacturing

• Automated insert placement

• High-volume production

Our team ensures stable production and consistent quality.

2K Injection Molding Service

 

2K Injection Molding (Two-Shot Molding)

Combine Multiple Materials in One Process to Reduce Assembly & Improve Performance

2K Injection Molding (Two-Shot Molding)

Are You Facing These Problems?

• Multi-material parts require manual assembly
• Poor bonding between materials → delamination
• Inconsistent product quality
• Too many production steps → high cost
• Difficult to achieve soft-touch + rigid structure

These are common issues when using traditional manufacturing instead of 2K injection molding

What Is 2K Injection Molding?

2K injection molding (two-shot molding) is a process where two different materials are injected sequentially in one mold to form a single integrated part.

• First shot: rigid plastic (ABS, PC, Nylon)
• Second shot: soft or functional material (TPE, TPU, etc.)

Key advantages:

• Strong bonding between materials
• No secondary assembly required
• Improved product consistency
• Enhanced design flexibility

2K Injection Molding vs Overmolding

Many customers are unsure which process to choose.

Key Difference:

• 2K Injection Molding: two materials molded in one cycle using a specialized mold
• Overmolding: second material molded over a pre-molded part in a separate step

When to Choose 2K?

Scenario	Recommended Process
High-volume production	2K Injection Molding
Complex multi-material design	2K Injection Molding
Lower tooling cost needed	Overmolding
Flexible production required	Overmolding

Not sure which is right?
➡️ Learn more: https://www.injectionmoldchina.com/overmolding/

Engineering Challenges in 2K Injection Molding

1. Material Compatibility

Not all materials bond effectively:

• PC + TPE
• ABS + TPU

Poor compatibility leads to weak bonding or separation

2. Complex Mold Design

• Rotary platen or index system
• High precision alignment
• Dual injection system

2K molds are significantly more complex than standard molds

3. Process Control

• Injection sequence
• Temperature management
• Cooling balance

Poor control results in defects or deformation

Our 2K Injection Molding Solution

Injection Mold Design

• 2K mold structure design (rotary / index)
• DFM analysis
• Moldflow simulation

Mold Manufacturing

• High-precision machining
• Durable mold materials
• Tight tolerance control

Material & Structure Optimization

• Material compatibility analysis
• Bonding strength improvement
• Mechanical interlock design

 Injection Molding Production

• Stable process control
• Consistent quality in mass production

From mold design to production — fully integrated

Typical Applications

2K injection molding is widely used in:

• Consumer electronics
• Tool handles
• Household products
• Industrial components
• Soft-touch functional parts

 Ideal for products requiring multi-material integration and high consistency

Results You Can Expect

• Reduce assembly cost by 20–50%
• Improve product consistency
• Enhance product durability
• Achieve better appearance quality

 Also Consider Overmolding

If your project:

• Requires lower tooling investment
• Needs more flexible production
• Uses pre-molded parts

Overmolding may be a better option

➡️ Learn more:
https://www.injectionmoldchina.com/overmolding/

Get Free Engineering Evaluation

We help you:

• Determine if 2K molding is suitable
• Optimize your design
• Reduce production cost
• Improve manufacturability

Contact Us Now

Send your 3D files and get within 24 hours:

• DFM analysis
• Process recommendation
• Quotation

Upload your design now

Medical Injection Molding

 

Medical Injection Molding

 

Professional Medical Plastic Injection Molding Manufacturer in China

Medical injection molding is a highly specialized manufacturing process used to produce precision plastic components for medical devices and healthcare applications. Compared with standard plastic manufacturing, medical injection molding requires higher standards in terms of precision, material safety, cleanliness, and quality control.

At CNMOULDING, we provide professional medical plastic injection molding services for global medical device manufacturers. With more than 20 years of experience in injection mold manufacturing and plastic molding production, we support customers from product development to mass production.

Our engineering team works closely with medical companies to ensure that every component meets strict requirements for precision, reliability, and performance.

Medical Plastic Parts We Produce

Injection molding technology is widely used in the medical industry because it allows the production of complex plastic components with excellent consistency and high production efficiency.

We manufacture a wide range of medical injection molded parts, including:

• Medical device housings

• Syringe components

• IV connectors and fittings

• Diagnostic equipment components

• Laboratory consumables

• Drug delivery device components

• Surgical instrument components

• Medical electronic housings

These products require tight dimensional tolerances, high surface quality, and reliable production stability.

[caption id="attachment_4758" align="alignnone" width="300"] Medical Injection Molding | Medical Plastic Injection Molding Manufacturer[/caption]

Medical Grade Plastic Materials

Selecting the correct material is critical in medical injection molding. Medical components must often meet strict requirements for biocompatibility, chemical resistance, and sterilization compatibility.

Common materials used in medical injection molding include:

• Polycarbonate (PC) – high strength and transparency

• Polypropylene (PP) – widely used for disposable medical products

• Polyethylene (PE) – chemical resistance and flexibility

• POM (Polyoxymethylene) – high precision and low friction

• Medical-grade ABS – good mechanical performance

• TPE (Thermoplastic Elastomer) – soft-touch and sealing applications

Material selection depends on the specific medical application and product requirements.

Precision Medical Injection Mold Design

Medical parts often require extremely tight tolerances and high dimensional accuracy. Our mold engineers carefully design each mold to ensure optimal performance during production.

Key aspects of medical mold design include:

• Mold flow analysis for balanced filling

• Precision cavity and core machining

• Optimized gate and runner systems

• Efficient cooling channel design

• Reliable part ejection systems

These design strategies help reduce defects such as warpage, sink marks, and short shots during production.

Clean Manufacturing Environment

Medical products often require a controlled manufacturing environment to ensure product safety and quality.

Our medical injection molding production can support clean manufacturing requirements to ensure:

• Reduced contamination risk

• Stable production conditions

• High product consistency

Strict process control and clean production practices help ensure that medical plastic components meet industry standards.

Quality Control for Medical Injection Molding

Quality control is critical in the production of medical plastic parts. At CNMOULDING, we implement comprehensive quality management procedures throughout the manufacturing process.

Our quality control measures include:

• Mold design verification

• Precision inspection of mold components

• Mold trial testing and validation

• Dimensional inspection using precision equipment

• Production process monitoring

These procedures ensure consistent product quality and reliable production performance.

Medical Injection Mold Manufacturing Capabilities

Our factory is equipped with advanced mold manufacturing equipment and injection molding machines to support the production of high-precision medical components.

Our capabilities include:

• High-precision CNC machining

• EDM and wire cutting

• Multi-cavity mold manufacturing

• Hot runner mold systems

• Mirror polishing for optical parts

• Mold testing and validation

These capabilities allow us to produce molds that support stable and efficient mass production.

Medical Product Development Process

We provide full support throughout the medical product development cycle.

Our typical development process includes:

1. Product design review

2. DFM (Design for Manufacturability) analysis

3. Mold design

4. Mold manufacturing

5. Mold trial and validation

6. Injection molding production

This process ensures that each project moves efficiently from concept to production.

Why Choose CNMOULDING for Medical Injection Molding

• Over 20 years of injection mold manufacturing experience

• Professional engineering and mold design team

• Advanced precision machining equipment

• Strict quality control procedures

• Competitive manufacturing cost

• Reliable production and fast lead times

We are committed to helping medical device manufacturers develop reliable plastic components with efficient and stable production.

 

Request a Quote for Medical Injection Molding

If you are developing medical devices or healthcare products and need a reliable medical injection molding manufacturer, CNMOULDING can provide professional mold design and injection molding production services.

Contact our team today to discuss your project and receive a quotation.

Medical Injection Mold

  

[ Medical Mold[/caption]

Professional Medical Plastic Injection Mold Manufacturer in China

Medical plastic injection molds are used to manufacture high-precision plastic components for medical devices and healthcare products. These molds require extremely high standards in terms of precision, material safety, and manufacturing consistency.

At CNMOULDING, we specialize in the design and manufacturing of medical plastic injection molds for global medical device manufacturers. With more than 20 years of mold manufacturing experience, our engineering team is capable of developing complex molds that meet strict medical industry requirements.

Our molds are used to produce a wide range of medical plastic components with reliable quality and stable production performance.

Medical Plastic Parts We Manufacture

Injection molding is widely used in the medical industry because it allows the production of complex plastic parts with high precision and excellent repeatability.

Typical medical plastic components include:

• Medical device housings

• Diagnostic equipment components

• Syringe components

• Laboratory plastic consumables

• Medical connectors and fittings

• Surgical instrument parts

• Drug delivery device components

These products often require tight tolerances, high surface quality, and strict dimensional control.

Medical Injection Mold Design

Medical injection mold design requires extensive engineering expertise to ensure both product performance and manufacturability. Our mold design engineers carefully analyze product structures and production requirements to optimize mold design.

Key design considerations include:

• High precision cavity and core machining

• Proper gate and runner system design

• Balanced filling and mold flow analysis

• Efficient cooling system design

• Reliable ejection mechanisms

Through advanced mold design techniques, we ensure consistent part quality and stable production.

Materials Used in Medical Injection Molding

Medical plastic components are typically manufactured using high-performance materials that meet strict safety and durability requirements.

Common medical plastics include:

• Polycarbonate (PC)

• Polypropylene (PP)

• Polyethylene (PE)

• Polyoxymethylene (POM)

• Medical-grade ABS

• Thermoplastic elastomers (TPE)

Material selection depends on the specific medical application, sterilization requirements, and mechanical properties needed for the product.

Precision Manufacturing for Medical Molds

Manufacturing medical injection molds requires high precision machining and strict quality control procedures. At CNMOULDING, our mold manufacturing process uses advanced equipment to ensure excellent accuracy and durability.

Our capabilities include:

• High-precision CNC machining

• EDM and wire cutting

• Mirror polishing for optical surfaces

• Multi-cavity mold manufacturing

• Hot runner mold systems

• Mold testing and validation

Each mold undergoes thorough inspection and testing before production.

Quality Control for Medical Mold Production

Medical products require extremely strict quality control standards. Our team follows comprehensive quality procedures throughout mold manufacturing and injection molding production.

Quality control measures include:

• Mold design verification

• Dimensional inspection of mold components

• Mold trial testing

• Product measurement and inspection

• Production process monitoring

These steps ensure that the molds meet customer specifications and produce consistent medical components.

Applications of Medical Injection Molds

Medical injection molding is widely used in healthcare and medical device manufacturing.

Applications include:

• Diagnostic equipment

• Drug delivery systems

• Laboratory testing devices

• Medical consumables

• Surgical devices

Injection molding provides the precision, reliability, and scalability required for modern medical product manufacturing.

Why Choose CNMOULDING for Medical Injection Molds

• Over 20 years of injection mold manufacturing experience

• Professional engineering and mold design team

• Advanced mold manufacturing equipment

• Reliable quality control procedures

• Competitive cost and efficient production

We work closely with customers to develop high-quality medical injection molds that support efficient and reliable manufacturing.

Request a Quote for Medical Injection Molds

If you are looking for a reliable medical injection mold manufacturer in China, CNMOULDING can provide professional mold design and manufacturing services for your medical products.

Injection Mold Cost Guide

 

How Much Does a Plastic Injection Mold Cost?

One of the most common questions product developers ask when starting a manufacturing project is:

How much does an injection mold cost?

The cost of a plastic injection mold can vary widely depending on part complexity, mold size, material requirements, and production volume. Some molds may cost only a few thousand dollars, while complex molds for automotive or medical applications can exceed $50,000 or more.

Understanding the factors that affect injection mold cost can help companies better plan their manufacturing budget and avoid unnecessary expenses during product development.

At CNMOULDING, a Shanghai-based mold manufacturer established in 1997, we have produced hundreds of plastic injection molds for global customers in automotive, electronics, and medical industries. Through years of mold design and manufacturing experience, we have seen how smart engineering decisions can significantly reduce tooling costs.

In this guide, we explain typical injection mold price ranges and the key factors that influence mold manufacturing cost.

Typical Injection Mold Cost Range

Injection mold costs vary depending on mold complexity and production requirements. The following ranges reflect common pricing in the manufacturing industry.

Prototype Mold

Typical cost:

$1,000 – $5,000

Prototype molds are designed for product testing or small production runs. These molds often use simplified structures and may be made from aluminum or softer mold steels.

They allow companies to verify product design before investing in a full production mold.

Standard Production Mold

Typical cost:

$5,000 – $30,000

This is the most common mold type used for consumer products and industrial components.

Production molds are usually made from durable steel materials such as P20 or H13 and are designed for long-term manufacturing.

High-Precision or Multi-Cavity Mold

Typical cost:

$30,000 – $100,000+

Complex molds may include multiple cavities, sliding mechanisms, or high precision requirements.

These molds are often used in industries such as:

• automotive components

• medical devices

• electronics housings

Although the initial investment is higher, multi-cavity molds can significantly reduce per-part production costs.

6 Key Factors That Affect Injection Mold Cost

Several engineering factors determine the final cost of an injection mold.

1 Part Complexity

The geometry of the plastic part has the biggest impact on mold cost.

Features that increase mold complexity include:

• undercuts

• side holes

• complex ribs

• tight tolerances

These features often require additional mold mechanisms such as sliders or lifters, which increase both design and manufacturing time.

2 Mold Size

Larger plastic parts require larger molds and larger injection molding machines.

A bigger mold means:

• more steel material

• longer machining time

• more complex assembly

As mold size increases, manufacturing cost rises accordingly.

3 Mold Steel Selection

The type of steel used in mold manufacturing significantly affects tooling cost and mold durability.

Common mold steels include:

Steel Type	Typical Use
P20	General production molds
H13	High-temperature or abrasive materials
S136	Medical or high-polish applications

Higher-grade steels increase tooling cost but extend mold life and improve product quality.

4 Number of Cavities

Multi-cavity molds allow manufacturers to produce several parts in one injection cycle.

Advantages include:

• higher production efficiency

• lower per-part cost

However, increasing cavity numbers also increases mold complexity and tooling cost.

5 Surface Finish Requirements

Products that require high cosmetic quality—such as consumer electronics housings—often need mirror polishing or textured surfaces.

These finishing processes require additional machining and polishing work, increasing mold manufacturing cost.

6 Production Volume

Production volume strongly influences mold design decisions.

For example:

• small production runs may use simpler molds

• high-volume production requires stronger mold materials and more robust structures

Choosing the right mold structure for the expected production volume helps optimize tooling investment.

Real Case Study: Automotive Connector Mold

A European automotive supplier contacted our Shanghai engineering team to develop an injection mold for a PA66 glass-fiber reinforced connector housing.

Project Requirements

Material: PA66 GF30
Production volume: 600,000 parts per year
Tolerance requirement: high precision

Initial Cost Estimate

The customer initially planned to use a standard mold design with P20 steel.

Estimated tooling cost:

$22,000

However, because the material contained glass fiber reinforcement, mold wear would likely occur quickly with P20 steel.

Engineering Optimization

Our engineering team recommended several improvements:

• upgrading the mold steel to H13

• optimizing gate design for balanced filling

• improving cooling channel layout

Although these upgrades increased the initial tooling cost slightly, they significantly improved mold durability.

Final Results

The final mold cost was approximately $27,000, but the mold life increased dramatically and production stability improved.

The mold successfully produced over 500,000 parts with minimal maintenance.

In the long term, the customer saved significant costs by avoiding frequent mold repairs and production downtime.

How to Reduce Injection Mold Cost

Companies can reduce tooling costs by optimizing product design and manufacturing strategy.

Some effective methods include:

Simplify Part Design

Reducing unnecessary undercuts or complex features lowers mold complexity.

Maintain Uniform Wall Thickness

Uniform wall thickness improves molding stability and reduces the need for complex mold structures.

Use DFM Analysis Early

Design for Manufacturing analysis helps identify potential problems before mold production begins.

Choose the Right Mold Steel

Selecting the appropriate steel based on production volume helps balance tooling cost and mold durability.

Why Work With an Experienced Mold Manufacturer

Injection mold manufacturing requires specialized engineering expertise. An experienced mold manufacturer can help optimize mold design, reduce production risks, and ensure stable mass production.

At CNMOULDING, our Shanghai factory provides complete services including:

• injection mold design

• mold manufacturing

• plastic injection molding production

• mold testing and quality inspection

Our facility operates under strict quality systems including:

• ISO9001 certification

• ISO13485 certification for medical device manufacturing

With more than 25 years of experience, we support global customers with reliable mold manufacturing solutions.

Start Your Injection Mold Project

If you are planning a new plastic product and want to estimate injection mold cost, our engineering team can review your design and provide professional recommendations.

Contact our Shanghai team today to discuss your project and receive expert support for injection mold manufacturing and plastic injection molding production.