June 19, 2023
The plastic material that will be used for the case (usually polyethylene) is first melted down and then injected onto a core pin. As this core pin rotates over a molding station the material is inflated with air so that a hollow area is created in the middle. The plastic is then given time to cool. Once it has cooled down, the plastic is removed from the mold and it remains formed to the exact shape of the case mold. The same mold can be used over and over again to create a case with the exact same specifications.
Injection molding is an ideal manufacturing process for large volume runs in a major manufacturing facility where hundreds or even thousands of injection molded cases may be manufactured at the same time. This is because once the mold has been designed and the equipment has been programmed, the injection molding process itself is very quick and easy to repeat.
