Plastic Injection Molding Service

China custom plastic injection molding company. Get prototypes and custom plastic injection molding parts in a few days at competitive prices.

High-quality plastic injection molding parts
On-demand manufacturing from design to production
Stock 30+ plastic materials

Get a Quote

Get a quote for tooling and the first batch production.

DFM

DFM report will be provided for production confirmation if needed.

Tool Making

You get a sample per part for your approval.

Sample Test

Your parts go into production after samples are approved.

Production & QC

We use the sample to verify future orders and provide QC checks.

Delivery

Zhongde-Your Reliable China Plastic Injection Molding Factory

As a reputable custom molds plastics inc in China, With over 40 years of experience, Zhongde offers plastic injection molding services for both rapid prototyping and on-demand manufacturing. We manufacture all injection molds & tooling in-house which start at $500 and have our own technical team to support the entire process from mold design to production.

At Zhongde, we help our customers bring their ideas to reality. Our strict quality control system ensures plastic injection components meets standards, while our competitive pricing helps you save costs. Choose Zhongde for reliable production, on-time delivery, and exceptional service to give your project a competitive edge!

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What is Plastic Injection Molding？

Plastic injection molding is the most common manufacturing process to fabricate large quantities of plastic parts. Due to its low material waste and low cost per part, It is an ideal method to produce plastic components molded in the same shape with consistent quality, and custom plastic molding can be used to create various plastic parts which vary broadly in size, complexity, and application. Such as medical devices, consumer products, and automotive.

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Injection Molding From Prototyping to Production

Rapid Prototype

Our rapid prototyping service uses 3D printing and CNC machining manufacturing processes to quickly prototype within days. Ensure your molded products are launched as quickly as possible.

On-demand Manufacturing

Zhongde on-demand production meets your needs and allows your custom products to be produced efficiently and quickly at competitive prices.

Plastic Injection Mold and Tooling Services

As a plastic injection molding company, Zhongde makes all the plastic injection mold in-house, from mold design to mold production and mold maintenance. We not only increased the accuracy of custom plastic injection molded parts, and met the customized requirements of complex-shaped parts, but also improved production efficiency.

Item	Details
Injection Mold Service	Prototype tooling & production tooling
Injection Mold Material	Steel P20, H13, S136, 2316, 2344, 083, 718H, SKD618, etc.
Injection Mold Type	Family molds, Single cavity molds, multi-cavity molds, two plate molds and three plate molds
Mold Storage	Stored for 5 years in inactivity
Mold Life	3 million to 5 million shots for production tooling
Mold Guarantee	Free mold if the last one worn out
Mold Remachining	We can re-machine the molds if there are any changes required, basis on mold structure

Plastic Injection Molding Size Chart

The below table shows the regular size of the custom plastic injection molding parts we make. If you need large size injection molding service or have unique requirements, contact us for help.

Size	Metric	Inch
Length	2500	98.4
Width	2000	78.7
Height	1500	59

Plastic Injection Molding Materials

At Zhongde, we not only offer a wide range of injection molding plastic materials but also provide additives to meet special requirements. Our professional material expert can customize the most cost-effective materials to meet your specific needs. Here is our injection molding materials and additives list for your reference.

Plastic Materials

The general materials are listed below for custom plastic injection molding.

ABS
HDPE
PA
PTFE
PP

PC
PE
PS
PA6
UHMWPE

POM
PMMA
LDPE
PVC
PU

Additive & Fibers

If the standard materials can’t meet your custom injection molding parts requirements, the additives and fibers can improve the material properties.

UV absorbers
Flame retardants
Colorants

Plasticizers
Vulcanizing ageent
Tackifiers

Plastic Injection Molding Surface Finishing

Proper surface finishing will improve the injection molded parts’ quality. Zhongde offers a wide range of surface treatment options. These efficient surface finishes improve the part’s functions and aesthetic appeal.

Glossy

A-grade finish is smooth and highly reflective, giving the product a shiny appearance. It’s often used for products where aesthetics are important.

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Semi-glossy

The B-grade finish is less reflective than glossy but still has a smooth and somewhat shiny appearance.

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Matte

C-grade finish is non-reflective and has a dull appearance. It’s often chosen for parts where glare or light reflection is undesirable.

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Textured

D-grade finishes are intentionally rough or patterned. They can provide a better grip or a unique appearance to the product.

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Plastic Injection Molding Process

Plastic injection molding is the process of filling a mould or mold tool with molten plastic resin under certain pressure. The injection tool may comprise a single cavity, multiple cavities, or family cavities in order to make indefinite numbers of parts. The plastic injection molding process consists of the following four basic steps:

1. Clamping
The first step of the injection molding process is clamping. Injection molds are typically made in two pieces. In the clamping phase, the two metal plates of the mold are pushed up against each other in a machine press.

2. Injection
When the two plates of the mold were clamped together, the molten plastic was injected into the mold.

3. Cooling
Put the mold alone, cool and solidify the plastic into the end-use product that can be safely removed from the mold.

4. Ejection
Open the mold, an ejector bar slowly pushes the solidified product out of the open mold cavity.

Related Plastic Injection Molding Resources

What is Rapid Tooling? Everything You Need to Know

2023-07-07

Four Stages of the Injection Molding Manufacturing Process

2023-02-24

The Importance of Injection Molding Holding Pressure

2024-11-01

Why Choose Zhongde for Plastic Injection Molding

With extensive experience, advanced equipment and technique team, we guarantee to high quality parts in competitive price. Wether you need rapid prototyping or on-demand manufacturing, Zhongde is your trusted partner for custom rubber injection molding solutions.

Cost Effective

Our injection molding tooling start at $500, easy for you to step into a new injection molding project. We always finding better solutions to lower overall custom molding costs, and let our customers have a more competitive advantage in the market

Consistency and High Quality

We take care of mold making and injection molding. That means we take full control from material to production. The experienced experts combined with scientific molding technology, ensure the custom products' quality and consistency.

Proven Success

Zhongde has accumulated thousands of happy clients all over the world. Over the 40 years since established, we’ve helped our customers develop and shipped out millions of custom molding parts.

Complete Range of Service

More than tool making and molding service, Zhongde complete production line include every manufacturing process you need for a new project development solution, such as secondary finishing, custom package, finish product assembly, etc.

Start A New Project Right Now!

Our sales team will contact you within 24 hours. We are glad to answer your questions.

Plastic Injection Molding Products Display

Our plastic injection molding services for addressing the various demands of different industries, including automotive injection molded parts, marine custom molded parts, consumer electronics custom plastic parts, home appliances molded parts, food production plastic parts, etc.

FAQs of Plastic Injection Molding Service

View our FAQ center for more questions.

Can you provide design assistance or feedback on my part design?

Yes, our expert team can offer deisgn assistance, ensuring your part is optimized for manufacuturability and cost-effectiveness.

Can I receive updates on the production progress?

Yes, we provide regular updates on the production progress, keeping you informed about the status of your order.

Can modifications be made to the order after it has been placed?

Depending on the stage of production, modifications may be possible. We will work with you to accommodate any necessary changes.

What is your policy for handling intellectual property and confidentiality?

We prioritize the protection of your intellectual property and maintain strict confidentiality. We are open to signing non-disclosure agreements (NDAs) to safeguard your designs and project information.