Direct immersion heating; compact design, two low-pressure machine sharing a holding
chamber, saving space; unique safety valve open and close structure, keep the chamber and heating chamber separated; while adding liquid while casting, to realize continuous production and improve casting efficiency. Keeping the Non-ferrous metal liquid in the room can be refined.Due to the small volume of the pressurized chamber, the amount of gas required for filling is reduced, the temperature is uniform, and the slag cleaning frequency is reduced.