... 3.Continuous rotation 4.Automatic operation Spiral Machine/Screen Centrifuge Machine Model PWC centrifuge is a type of ... in such industries as chemical, salt making, alkali making, environmental protection, etc, for example: adipic acid, AH-salt, ... acid, citric acid, coal slurry, frozen concentrated coffee, coffee bean shiver, copper sulphate, velveteen, crystal soda, nutlet, dimethyl terephthalate ...