The hot chamber die casting machine, applied by EUROMAG SA, consists of two furnaces connected by a transport tube. In the first furnace (melting furnace) magnesium ingots are charged and melted. The task of the other furnace (machine holding furnace) is to maintain liquid magnesium at an appropriate temperature which is dependent on the alloy being cast (between approximately 630 and 690°C).

A hot chamber machine injection mechanism, consisting of an injection chamber and plunger, is submerged in the machine holding furnace. The injection chamber along with the channel is called a gooseneck. Intake ports in the injection chamber, which are below the molten metal surface, allow the molten metal to fill the chamber. As the plunger moves downward it seals the intake ports, and then forces the molten metal through the gooseneck and nozzle delivering it directly to the die.

The die is fixed in the machine’s clamping system, which enables rapid opening and closing of the die. After the magnesium has solidified in the die, the plunger is withdrawn, the die opens, and the resulting casting is removed.

A mixture of protective gases is continually supplied to both furnaces, to control oxidation of the surface of the liquid magnesium. The entire process is electronically controlled and monitored which ensures the highest level of safety and quality.