Hot-chamber die casting

Hot-chamber die casting, also known as gooseneck machines, rely upon a pool of molten metal to feed the die. At the beginning of the cycle the piston of the machine is retracted, which allows the molten metal to fill the "gooseneck". The pneumatic- or hydraulic-powered piston then forces this metal out of the gooseneck into the die. The advantages of this system include fast cycle times (approximately 15 cycles a minute) and the convenience of melting the metal in the casting machine. The disadvantages of this system are that it is limited to use with low-melting point metals and that aluminum cannot be used because it picks up some of the iron while in the molten pool. Therefore hot-chamber machines are primarily used with zinc-, tin-, and lead-based alloys.

Cold-chamber die casting

These are used when the casting alloy cannot be used in hot-chamber machines; these include aluminum, zinc alloys with a large composition of aluminum, magnesium and copper. The process for these machines start with melting the metal in a separate furnace. Then a precise amount of molten metal is transported to the cold-chamber machine where it is fed into an unheated shot chamber (or injection cylinder). This shot is then driven into the die by a hydraulic or mechanical piston. The biggest disadvantage of this system is the slower cycle time due to the need to transfer the molten metal from the furnace to the cold-chamber machine.

Die casting workshop

No Die casting machine Specifications Quantity manufacturer
1 280T DCC280 1 LK 
2 180T JS180A 1 LK 
3 500T DCC500B 1 LK
4 630T DCC630B 1 LK
5 800T DCC800 1 LK
6 1250T DCC1250 1 LK
7 1600T DCC1600 1 LK