The basic manufacturing process of injection molding: Plastic is melted in a plastic injection molding machine and injected into a mold under high pressure. There, the material is cooled, solidified, and then released by opening the two halves of the mold. This technique produces plastic products with predetermined, fixed shapes.

For ease of production, the parts that function in the plastic injection molding process must be carefully designed. Products made by plastic injection molding machines are first designed by industrial engineers or designers.

To make a mold, usually made of steel or aluminum, the tool maker takes into account all the basics: the material used for the final product, the characteristics of the product, but also the material of the mold and the performance of the injection molding machine.