Injection Mold & Molding Service

Custom injection molding services for plastic prototypes and on-demand production parts. Get a free injection molding quotation and design feedback within hours.
  • Low Volume Production
  • Rapid Tooling Production as fast as 2 weeks
  • Worldwide Delivery

Start Your Injection Molding Tooling Quote


Need mold-making supplies for mass production parts? We are known as the best mold maker in China. With mold making facilities in-house and resources from our partners, we are able to provide plastic injection molds for both rigid plastics and rubbers, metal injection molds for all types of precision stainless steel parts, and pressure die casting molds for aluminum, magnesium and zinc. We offer low-cost local production molds and high-quality exported molds for all your project needs.
 Whether you need prototype molds for short-run production, or mass-production molds for millions of shots, we can handle them for you smoothly.


Our versatility allows us to develop prototype tools and production molds at affordable prices. With the fastest possible lead times, our capabilities help us optimize production and bring your products to market faster. Are you ready to take plastic part production to the highest level? We are always ready to assist you in the production process.


Our Injection Molding Capabilities

From plastic prototyping to production molding, our custom injection molding services are ideal for manufacturing high-quality molded parts at competitive prices with fast lead times. Robust manufacturing facilities and sophisticated machines ensure that the same mold tools are used to manufacture consistent parts. Even better, we offer free expert consultation for each injection molding order, including mold design recommendations, end-use material and surface treatment options, and shipping methods.

Plastic Injection Molds

With our experience and advanced machinery, we excel at designing and manufacturing a series of plastic injection molds adjusted to your tolerance and cost.

Plastic Injection Molding

Our plastic injection molding process uses precise machinery to shoot molten resin into a mold to become a final production-grade thermoplastic part.


Covering plastic, metal, and rubber over each other via chemical bonding, our overmolding reduces assembly time and gives our parts greater strength and flexibility.

Insert Molding

Insert molding is the process of molding thermoplastic material around a preformed component to create a finished part that incorporates multiple materials.

Our Injection Molding Processes

See how we process your orders, from quotation to tooling, as our machines and efficient team ensure you receive your molds and parts within the scheduled lead time.

Request for Quote

Request your quote from our ionline quotation platform and our dedicated engineers will provide a response within 24 hours, ensuring the process goes on smoothly.

DFM Report

To ensure we can produce functional molds, we offer feasibility reviews of your design to ensure we can fulfill requirements before starting production.

Mold Flow Analysis

Predictive modeling software helps us look at the way molten material moves and acts within the mold, which helps us deliver improvements.

Mold Tooling Production

Start the production of mold tooling according to your specific application needs by using the materials and finishs of your choice.

T1 Sample Verification

T1 sampling will be delivered for you to review prior to manufacturing plastic parts to ensure precision and quality.

Low Volume Production

After completing the trial production phase, we proceed to low volume production, utilizing advanced machining techniques to manufacture parts quickly and efficiently.

Strict Inspection

A strict inspection process, including the inspection of function, dimension, and appearance, ensures that the parts meet the required specifications and are of high quality.


After a thorough inspection, we will deliver your products to you as quickly as possible while ensuring their safety.

Surface Finishes of Injection Molding

Injection molding includes injection mold tooling, plastic injection molding, and more. The surface treatment of the mold is usually completed during the production process. After the injection molding is completed, we will carry out certain surface treatments on the finished product as per your requirement.


A grade finishes are made using a diamond buffing process and yield shiny and glossy surfaces on injection molded parts.


B grade finishes use grit sandpaper to produce parts with a slightly rougher finish than grade A parts. Custom molded plastic parts that undergo B grade finishing have a matte surface texture.


C grade finishes use grit sanding stones to produce a rough, uneven surface. Injection plastic parts that undergo C grade finishing have a matte surface texture.


D grade finishes use grit and dry glass beads or oxide to produce a very rough textured finish. Depending on the type of material used, products can have a satin or dull finish.

Why Choose Us for Custom Injection Molding Services


No minimum order requirement helps move plastic molded parts from design to production in a fast turnaround and supports your on-demand molding manufacturing needs with reduced injection molding cost.

High Efficiency

With certified domestic factories and a strong supply chain system, we accelerate the product development cycle and bridge the production of your injection molded parts as fast as possible.

Consistency and High Quality

Owing certified factories, conducting in-process inspections and dimensional verification after production, guarantee the custom molded parts are consistent in quality regardless of the complex shape with high precision.

Injection Molding Specialists

Working with our experts having 10+ years of experience in the injection molding industry, efficiently complete a turnaround from prototyping to production.

Injection Molding from Prototyping to Production

Take advantage of our professional manufacturing services throughout the production cycle, from prototyping and design validation to functional testing and product launch. We deliver high-quality and precise flight-worthy components with fast turnaround and at low costs. With our quality control process, you can be sure of getting parts that meet your unique requirements.
Rapid Mould Tooling

Get easy design feedback and validation through superior quality prototype tooling. Create small batches of plastic molded parts with excellent injection molding prototypes. We excel at manufacturing prototype molds within days to ensure you perform functional tests and validate market interest.

Production Mould Tooling

We create high-quality production molds for high-volume plastic parts production. With high-strength, durable tool steel material, our production tooling is suitable for producing hundreds of thousands of parts. We can vary materials and construction methods according to your unique requirements.

Materials for Injection Molding

These are commonly molded plastics that our injection molding service provides. After knowing the basics of materials, like common grades, brands, advantages, and disadvantages, choose the right injection molding material depending on your application requirements.

Gallery of Injection Molding Parts

Dive into ours extensive gallery that showcases some of our completed injection molded parts and take confidence that we can create your injection molding project according to your strict specifications.

Class of Injection Molding Mold

At out site, we design and create precise custom injection molds from high-quality materials. Our processes ensure unmatched consistency and repeatability at fast lead times and affordable pricing. Every plastic injection molding we fabricate meets international standards. From one-off projects to small batches and production tooling, we provide durable and reliable mold tools.

Mold Class


Shot Life



Lead Time

Class 105

Prototype Testing

Under 500 cycles

± 0.02mm


7-10 days

Class 104

Low-volume Production

Under 100.000 cycles

± 0.02mm


10-15 days

Class 103

Low-volume Production

Under 500.000 cycles

± 0.02mm


10-15 days

Class 102

Medium-volume Production

Medium to high production

± 0.02mm


10-15 days

Class 101

High-volume Production

Over 1,000,000 cycles

± 0.02mm


10-18 days

Our Injection Molding for Various Industrial Applications

We works with leading manufacturers from different industries to support growing demands and streamline their supply chain. The digitalization of our custom injection molding services helps more and more manufacturers bring their idea to products.
Consumer Goods
Medical Devices


Frequently Asked Questions

No minimum order quantity, but the oder pricing will be more competitive if qty is higher.
Our mold-making process includes 6 steps:
Step 1: Production arrangement: Determine all of the requirements and arrange the production.
Step 2: DFM report analysis: Provide free but detailed production DFM report for further feasibility analysis.
Step 3: Production of the mold: Put the mold into production and provide the Tooling Schedule form for the whole cycle for clients to check the process at any time.
Step 4: Free sample to test: Put the mold into production and provide the Tooling Schedule form for the whole cycle for clients to check the process at any time.
Step 5: Mass production: The client confirms the samples are qualified, then officially proceeds with the subsequent production.
Step 6: Mold saving: Production is completed and delivered after quality inspection. Mold will be cleaned and properly stored for the next round of parts production.
Tolerance is very important, and if not correctly specified and controlled, assembling will fail. RapidDirect uses ISO 2068-c standard for injection molding tolerances unless tighter tolerance required.
After you place order, it takes about 35 days for mold designing and making, and more 3-5 days for molded parts production.
Generally, we generate the quote after our platform must have considered several factors, including the size of the component, mold complexity, number of injection cavities, materials, post-processing needs, etc.
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