Permanent Media Gravity Drum Filtration System adopts single stage working pattern for broken/fine chips and swarf sludge. The Gravity Drum Filtration System is efficient in difficult machining application where many fine chips are present. The Gravity Drum Filtration System is facilitated with self cleaning drum system for maintenance free operation. Permanent Media Gravity Drum Filtration System can also adopt dual stage working pattern for bushy, stringy and high chip load application.