China Injection Molding Supplier

With an area of 20 000 square meters, Holly is a professional injection molding supplier with 20+ years industrial experience.

  • Custom plastic injection molding for your unique parts

  • Custom rapid prototyping service including 3D printing, CNC machining, and Vacuum Casting.

  • 60000+ plastic part projects delivered in the past 20 years

  • Supplier for EPSON, BMW, HONDA, HP, Honeywell, etc.

Featured Injection Molding Services

Plastic Injection Molding

Plastic Injection Molding

Plastic Rapid Prototyping

3D Printing Service

Plastic Rapid Prototyping

CNC Machining Service

Plastic Rapid Prototyping

Vacuum Casting Service

10+ Injection Molding Engineers Team

We have a 10+ injection molding engineers team, who has handled thousands of projects, and our technique absorbed from Taiwan and Europe.

Plastic Injection Molding Manufacturer

As a professional China plastic injection molding manufacturer, we provide high-quality plastic part manufacturing services for different industries.

  • Turn your 3D CAD design into production parts within a few weeks

  • Our technique was absorbed from Taiwan and Europe

  • More Than 40 sets of Injection Machines

Call Us

+86 183-2438-9805

Our Email

[email protected]

Featured Injection Molding Process

Insert Injection Molding

2K Injection Molding

Gas Assist Injection Molding

Clean Room Injection Molding

In-Mold Decorating Labels Molding

Thin-walled Injection Molding

Recent Injection Molding Solutions

Electronics Plastic Injection Molding2025-05-29T06:14:42+00:00
Electronics Plastic Injection Molding
Gallery

Electronics Plastic Injection Molding

Medical Plastic injection Molding2025-07-01T07:17:42+00:00
Medical Plastic Injection Molding
Medical Plastic injection Molding
Gallery

Medical Plastic injection Molding

Automotive Plastic Injection Molding2025-05-29T06:14:30+00:00
Automotive parts plastic injection molding
Automotive Plastic Injection Molding
Gallery

Automotive Plastic Injection Molding

Why 500+ Customers Choose Us

Long History

20 years of injection molding experience, working with brand companies like EPSON, BMW, and HONDA, Holly has provided high-quality plastic injection model projects for 1000+ clients from 42+ countries.

High Quality

All of our mold steel have a certificate with longer mold life, mold produced by advanced equipment, the tolerance can reach +-0.01mm, the molded product has a good appearance without any flash, and a good fit with other products.

Competitive Price

The place where the factory is located belongs to Holly Plastic, without factory rent cost, we can provide a more competitive price to support low volume runs.

Design Consultant

With 5+ years of experience, Holly engineer team provides free mold design analysis and part optimization before tooling, our technique is absorbed from Taiwan and Europe.

One-stop Service

From tooling to injection molding production and assembly, Holly provides full service, that facilitates less production cycle time, saving cost, and reduced time-to-market on projects.

Fast Delivery

On-time delivery of quality products rate>99.7%, we can finish the mold and injection molding parts in a few weeks.

China Injection Molding Supplier FAQ

Many factors will influence the mold cost, such as mold material, cavity number, structure complexity, size and weight, surface finish, etc. If your part design is simple and only needs a small quantity, the mold cost can be around 1-2 thousand dollars; but if your part design is complex and need a large quantity, it will need hundreds of thousands of dollars. If you want to know all the plastic injection molding pricing details about China molding cost, you can check this article: A Completely Pricing Guide for China Plastic Injection Molding

It depends on the part design, the more features on the part will make more time building an injection mold, from weeks to months. We will do our best to finish the mold production within our customer demand.

Each material has a different specific application, performance, molding properties, mechanical properties, and cost of the resin, you can check this material selection guide. If you are not sure which material should be used, pls feel free to ask us.

Our customer! Mold belongs to our customer property, it will only be used to produce plastic parts for you, and handled by you.

Yes, if you are not satisfied with T1 samples and want to change some structures, just provide a newly changed CAD file, then we will check again, and tell you some necessary mold modification cost.

Yes, it is called a family mold. If these parts are the same color, material, it is a good way to reduce the mold cost and make these parts in one mold.

Our preference is the 3D CAD files, such as STP, STEP, X-T, IGS.

Send us CAD files (such as STEP format), and tell us the quantity, material, surface finish, color, or other requirements you need, then we will check and evaluate, and give you a suggestion for the part design and quote you.

What Our Clients Say Us

Our Promise

  • A very competitive price to help you cut costs and increase profits or improve your market competitiveness.
  • From drawings to prototypes, then be economical injection molded parts, we provide a one-stop service to make your unique idea be the reality.
  • With our plastic rapid prototyping, you can test your business ideas before your final decision.
  • No matter how complicated the part, how the order quantity you need, Holly will bring your product to market.

As part of our development of a new sampling device, we needed to test multiple prototype parts – from hardware-software integration and ergonomics of handheld operation, through to snap strength verification for housing snaps. Holly Plastics provided us with a full set of functional prototypes using 3D printing and vacuum casting in only five days, all to an outstanding standard with appearances closely matching those found in mass-produced parts, hardness, dimensions all being within tolerances. Jackie consistently understood our design intent quickly and provided improvement suggestions based on our feedback after each validation round. In total, four iterations rounds were completed by Holly on this project – both their rapid prototyping ability and smooth communication are reasons we continue to entrust them with our work.

Emma Caldwell, Project Manager

Holly Plastics stood out among three evaluated suppliers by manufacturing aluminum CNC prototype parts that met our design tolerance of +-0.02mm with excellent anodized surface finish that had no burrs or scratches, even with only basic requirements provided to Jackie’s engineering team. Jackie quickly filled in all necessary manufacturability details without needing multiple revisions back and forth; one standout feature was their prompt turnaround – we required test parts within 4 days and received them three days early- perfect timing! For an R&D team like ours where timing is critical, Holly Plastics proved itself as an indispensable partner!

Michael Thompson, Engineer

Over the last three years, Holly Plastics and I have successfully created three wearable products together. From initial 3D printed functional prototypes and CNC-machined housings for strength validation to small batch vacuum cast testing and injection mold design and mass production, they have provided professional and reliable support at every stage. On a recent occasion, we needed 10 high-quality display units quickly for an international trade show. Jackie took it upon herself to expedite this process and ship all 10 units within two days–resolving an important issue with just enough time left before its deadline. Working alongside Holly made clear they don’t just complete orders–they genuinely think from customer perspective and find solutions.

Luca Romano, CEO

Are You Looking For China Injection Molding Suppliers?

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