Pto Driven Feed Roller Mill (40T) Tractor powered type feed roller mill machines are used to crush cereals as connected to tractor from 3 points and runs via tractor PTO shaft. Flaking mills are composed of corrosion resistant roller balls which are hardened under heat treatment, feed hopper and construction. Advantages Feed at Desired Fineness thanks to two Setting Handles High Capacity and Efficiency with Large Diameter Roll Balls