Hasung vacuum gold bullion casting machine is for making bright gold bars, high quality gold bullions, no oxidation, no pores, no shrinkage. full automatic operation, easy for operators. melting under vacuum with inert gas atmosphere. With Germany IGBT induction heating technology, using world famous brands components such as Japan AirTec, SMC, Shimaden, Germany Siemens, Omron, Taiwan Weinview, etc. to ensure high quality machines.