Injection Molding: Types and Applications

Injection molding is a process for making parts from plastic material. Molten plastic is injected into a mold cavity, where it is cooled and solidified to form the part. There are many types of injection molding, and the process and applications vary depending on the type. Some common types of injection molding are injection blow molding, injection stretch blow molding, and injection compression molding. 

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Types of Injection Molding

Injection molding is a process for manufacturing parts by injecting molten polymer into a mold. There are a variety of different types of injection molding, each with its own advantages and disadvantages. There are various types of injection molding like Metal injection molding, Thin-wall injection molding, Injection molding of liquid silicone rubber, Reaction injection molding, Micro injection molding, and Gas-assisted injection molding, and Cube mold technology.

1. Metal injection molding (MIM)

Metal injection molding (MIM) is a manufacturing process that combines the benefits of both plastic and metal manufacturing. In this process, metal powder is mixed with plastic and then injected into a mold. The result is a strong, durable product with the intricate detail of plastic injection molding.

2. Thin-wall injection molding TWIM

Thin-wall injection molding is a process used to create thin-walled plastic parts. It is similar to conventional injection molding, but the process uses lower injection pressures and temperatures to produce parts with thinner walls. Thin-wall injection molding is used to produce parts such as food containers, medical devices, and electronic housings.

3. Reaction injection molding RIM

RIM is a versatile process that can be used to create parts with a wide range of properties. Parts can be made from a variety of materials, including metals, glass, and ceramics. RIM is often used to create parts with a high level of detail and a smooth surface finish. The RIM process is relatively fast and efficient, and it can be used to create parts with very complex shapes. RIM is an effective way to produce parts with a high level of detail and a smooth surface finish.

4. Micro injection molding

Micro injection molding is a process that uses very small needles to inject small amounts of plastic into a mold. This process is typically used to create small parts or micro-sized parts.

5. Gas-assisted injection molding

This type of molding is typically used for products that have complex shapes or require a high degree of precision. The gas helps to support the mold during the injection process and prevents the plastic from collapsing.

6. Cube mold technology

Cube mold technology is a casting process that uses a mold in the shape of a cube. This technology is commonly used to create concrete blocks or pavers. The mold is filled with concrete and then vibrated to remove any air bubbles. Once the concrete has been set, the mold is removed and the blocks or pavers are ready to use.


Products made by injection molding are found in a variety of industries, from automotive to medical. Injection molding is a process that uses a thermoplastic material to produce a part or product. Injection molding is a versatile process that can create a variety of parts, from small to large.  Injection molding is often used to create objects such as bottles, cups, and toys. Injection molding is also a fast process, which can create parts in minutes.

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