3 Types Of Plastic Injection Molds

Injection molding is one of the most versatile plastics manufacturing processes in use today. A large number of plastic and polymer products that consumers use on a daily basis are created using plastic injection molding.

To really appreciate the versatility of the plastics injection molding manufacturing process, it helps to understand how the process itself works. Here are three types of molds used by manufacturers when creating plastic items.

1. Single Cavity Injection Molds

A single cavity mold has one chamber into which liquid plastics are injected. This allows a single cavity mold to produce one product at a time. Manufacturers will often use single cavity molds when generating products with a low production volume.

Single cavity molds are cost-efficient and can produce high-quality products. Workers are able to monitor each mold for air bubbles or other deformities since only one product is manufactured per mold.

You will also see single cavity molds used to manufacture products that have awkward specifications or are bulky in nature.

2. Multi-Cavity Injection Molds

Multi-cavity injection molds are essentially a series of single-cavity molds that have been fused together to form a single mold.

There are multiple cavities that are identical in nature. Liquid plastics are injected into these cavities to allow manufacturers to produce multiple items simultaneously.

Manufacturers are able to produce higher numbers of products within a shorter matter of time when using multi-cavity molds. This increases productivity and helps to keep production costs low.

3. Family Injection Molds

A family injection mold is similar to a multi-cavity mold. The major difference is that the cavities within a family injection mold each feature a different design. It is common for manufacturers to use family injection molds when producing prototypes or creating multiple products that will be sold together in a single pack.

It takes longer to create a family injection mold because the individual cavities need to be arranged carefully to ensure the mold remains balanced at all times. An unbalanced family injection mold will result in uneven fluid injection that might compromise the quality of the finished products.

Injection molding has revolutionized the way that modern manufacturers work with plastics. A variety of molds are available to help meet the needs of manufacturers.

Using single-cavity molds, multi-cavity molds, and family injection molds allows manufacturers to create a wide range of plastic products for the consumer market. 

For more information, contact a company that offers plastics injection molding in Mexico.


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