Pet Jar Blowing Machine

It is a manufacturing process typically used for creating plastic bottles; however, it can also be used to produce oil cans and larger plastic containers. Blow molding is also used in the mass production of glass bottles and jars. For this article, we will focus on PET plastic blow molding. Bottles. Blow molding is a process that uses heated liquid plastic to create hollow objects, like bottles or other packaging. Pressure forces the material into a mold cavity, which gives the object its hollow shape.