Prototype Injection Molding | Custom Plastic Parts Molding

Mold manufacturing injection processing services

Use epoxy, polyester, or filled with metal, quartz sand and other reinforcements or low/medium melting point alloys to make simple structural molds. This type of mold has a simple manufacturing process, short cycle, and low price. It can only be produced in small and medium batches. Used for sample manufacturing.

How does the injection molding work?

The thermoplastic injection molding process is a standard process that involves an aluminum mold and no heating or cooling lines pass through it, which means a longer cycle time. It allows our molds to monitor the filling pressure, appearance issues, and the basic quality of the parts.

The resin particles are put into a bucket, where they will eventually be melted, compressed, and injected into the runner system of the mold. The hot resin is injected into the mold cavity through the gate to form the part. The ejector pin facilitates the removal of the part from the mold, where the part falls into the loading bin. When the run is complete, the part (or initial sample run) will be boxed and delivered soon.

Advantages of injection molding

Injection molding is a good choice for mass production of plastic parts.
After all, so many high-tech companies around the world use it to produce parts and components for a reason.
But what makes injection molding so popular?

The following are its biggest advantages:

High efficiency

The mold injection process is of highly efficience for small-batch prototyping service with the quantity of 500~5000PCS.
Excellent details

High-pressure injection ensures that the molten material reaches every gap in the mold before it solidifies. This allows design engineers to incorporate complex geometries and complex elements into their designs.
Cost-effective

Fast and efficient production ensures low cost of each part, while high production yields further economies of scale. Aluminum is a cost-effective, readily available material that can be used as a cost control tool.
Mass production

The use of steel molds for injection molding can facilitate the mass production of millions of parts.
High tensile strength

Adding fillers to the liquid resin can enhance the tensile strength of injection molded parts.
rapid prototyping

Through proper treatment, the injection molded parts have a smooth finish when they come out of the mold, and no further refinement is required.

Material selection of injection molding

Below is a list of our standard materials that can be used for injection molding. If you need customized information, please contact us.

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Acetal polyoxymethylene (POM)
ABS polycarbonate (PC-ABS)
Acrylonitrile butadiene styrene (ABS)
Polyethylene terephthalate (PET)
Nylon 66 (PA66)
Polymethyl methacrylate (acrylic) (PMMA)
Glass-filled, polyamide (PA-GF)
Polyphenylene sulfide (PPS)
High-density polyethylene (HDPE)
Polypropylene (PP)
Low-density polyethylene (LDPE)
Polystyrene (PS)
Polybutylene terephthalate (PBT)
Polystyrene + polyphenyl ethers (PS-PPE)
Polycarbonate (PC)
Thermoplastic elastomer (TPE)
Glass-filled polycarbonate (PC-GF)
Thermoplastic vulcanizates (TPV)

Surface treatments of Injection Molding

Injection molded parts usually do not undergo post-processing, but the mold itself can be completed, which affects the surface finish of the molded parts. This way can meet aesthetic needs or technical requirements.