... 3.Continuous rotation 4.Automatic operation Spiral Machine/Screen Centrifuge Machine Model PWC centrifuge is a type of ... filtrating medium and is discharging out of the machine, while the solid-phase material is retained inside ... phosphate, potassium sulfate, polyvinyl alcohol, PVC, pyrazole, halite, reclaimed rubber, silver nitrate, sodium acetate, sodium bisulphate, sodium carbonate, sodium ...