Get a free quote for Roskamp Mill Roller (Mill) 9 X 12 Machine Equipment for Sale, Rent, or Lease. ... 5grooves per inch top pair and 14grooves per inch lower pair, belt driven powered by 15hp motor. Control panel has A/B 1305 AC Drive. 6" OD flanged charging port. 13" x 12" bottom discharge and has 181/2" ground clearance.