Custom injection molding services for plastic prototypes and on-demand production parts. Get a free injection molding quotation and design feedback within hours.
Molding Machine
Surface Finishes
MOQ
Tolerances
From plastic prototyping to production molding, cncjsd custom injection molding service is ideal for the manufacturing of competitive pricing, high-quality molded parts in a fast lead time. Strong manufacturing facilities with powerful, precise machines ensure the same mold tool for creating consistent parts. Better yet, we provide free expert consultation on each injection molding order, including mold design advice, materials&surface finishes selection for your end-use applications, and shipping methods.

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

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 is the process of molding thermoplastic material around a preformed component to create a finished part that incorporates multiple materials.
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 your quote from our online quotation platform and our dedicated engineers will provide a response within 24 hours, ensuring the process goes on smoothly.

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

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

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

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

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

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.
Die casting is a highly effective method for producing top-quality prototypes and small-batch parts, making it an excellent choice for a wide range of applications. Our team is here to assist you in achieving your manufacturing objectives by providing expert die casting services.

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.

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.
| Standards | Description |
| Maximum Part Size | 1200×1000×500 mm47.2×39.4×19.7 in. |
| Minimum Part Size | 1×1×1 mm0.039×0.039×0.039 in. |
| Part to Part Repeatability | +/- 0.1 mm+/- 0.0039 in. |
| Mold Cavity Tolerances | +/- 0.05 mm+/- 0.002 in. |
| Available Mold Types | Steel and aluminum tooling. Production grade we provide: Under 1000 cycles, under 5000 cycles, under 30,000 cycles, and over 100,000 cycles |
| Machines Available | Single cavity, multi-cavity, and family molds,50 to 500 press tonnage |
| Secondary Operations | Mold texturing, pad printing, laser engraving, threaded inserts and basic assembly. |
| Inspection and Certification Options | First Article Inspection, ISO 9001, ISO 13485 |
| Lead Time | 15 business days or less for most orders,24/7 quotation response |
At cncjsd, 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 |
Purpose |
Shot Life |
Tolerance |
Cost |
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 |
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.
Dive into cncjsd 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.





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.

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.

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.

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

Learn what you need before requesting for quotes for your injection molding projects at cncjsd. Help you get wonderful molded parts made effectively, easily.
A customer’s words have a more substantial impact than a company’s claims – and see what our satisfied customers have said regarding how we fulfilled their requirements.

cncjsd has been our molding partner for over 2 years. Since then, cncjsd has regularly provided us with top-notch molded parts. In addition, cncjsd has offered assembly services for various models of our multi-bit screwdrivers up until the final finished product. I am pleased to recommend cncjsd to anyone looking for top-notch molded products.

The staff at cncjsd has assisted us in turning our ideas into finished parts for several years now. The process from conception to manufacturing has been smooth, thanks to their knowledge, skills, and “can-do” attitude. This is one of our most fruitful business partnerships because of cncjsd emphasis on customer satisfaction.

cncjsd has consistently proved to be a top supplier of injection molded parts for our company. They have constantly impressed us with their professionalism, fairness, and reasonable prices. We’ve hired cncjsd to create molds for us, fix and adapt existing molds to suit our demands, and deliver items that consistently meet or surpass our strict specifications.
CNCjsd works with leading manufacturers from different industries to support growing demands and streamline their supply chain. The digitalization of our custom CNC machining services helps more and more manufacturers bring their idea to products.

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.

Before injection molding process starts low or high-volume production, a high tolerance CNC machined tooling is needed. Most commonly used materials include:
Tool Steel: P20, H13, S7, NAK80, S136, S136H, 718, 718H, 738
Stainless Steel: 420, NAK80, S136, 316L, 316, 301, 303, 304
Aluminum: 6061, 5052, 7075

Plastic injection molding service comes with a wide range of materials with different properties, including impact strength, rigidity, thermal resistance, chemical resistance, etc.
| ABS | Nylon (PA) | PC | PVC |
| PU | PMMA | PP | PEEK |
| PE | HDPE | PS | POM |

Standard plastic materials may not meet custom injection molding parts requirement. In this case, additives and fibers can be added to improve aesthetic and functional properties, providing additional features for your injection molded parts.
| UV absorbers | Colorants |
| Flame retardants | Glass fibers |
| Plasticizers |







