The process of high pressure zinc die casting can be divided into two methods. Cold chamber die casting and hot chamber die casting, and the major difference between them is the different type of machines that are employed. Usually, hot chamber machines are more suitable for small and light zinc products, while cold chamber die casting machine are usually used to manufacture large heavy die casting products.

The hot chamber die casting process has been around a bit longer than the cold chamber die casting process, and it is ideal for the casting of copper, lead and zinc alloys. The hot chamber type of machine is more suitable for for casting small size die products, and very commonly the hot chamber process will have a much faster speed than the cold chamber process. The hot chamber process is not really suitable for large and heavy die cast products.