... based on requirement ! Turnkey project !The vacuum molding machine is suitable for simple pattern, big casting, such as counter weight of ... and adopt singleness dry sand(no water,bond,tagger),then it is hot up,molding,pressurized sand-box,take out the air ... cleanse ,save energy,improve work surrounding ,in the recently years,it is speedy developed. Vacuum molding machine ideal for big casting molding