... a certain angle, it touches the limit switch and cute of f the time relay and thus the feed value is shut ... off the material, which is discharged out of the machine by means of gravity.APPLICATIONSModel PPC centrifuge is a type scraper ... industry, food, pharmacy, metallurgical and other industries for the separating of hundreds of materials such as thiamine, nickel sulfate, ferrous sulfate, starch ...