From Japa Diecasting Association
Diecasting machine can be separated by 2 different category. One is called "Cold chamber", another is "Hot chamber. Cold chamber means that chamber (=plunger unit) is not soaked in molten metal, but the furnace and machine put separately, and using ladle or other way, molten metal is delivered to pure into sleeve.
Generally toggle unit is used for die locking of die casting machine. Recent years, 2 plates locking unit is used for large die casting machine such as over 1250ton machine.