Description Overview 30 to 1 L/D ratio 6 zones air cooled barrel 2 blowers per zone Electrically heated non vented barrel Flender gear reducer with oil recirc system 7.8 to 1 ratio 224 rpm screw speed Specifications Feedthroat has a round opening 3.44” diameter Barrel has hardened liner Xaloy 102 or equal Feedscrew is single flighted dual twisted mixer with Colmonoy 56 on flights 150 hp AB bulletin inverter duty motor 1780 rpm 460 volt Motor is direct drive to gear box for 224 rpm maximum screw speed 3.5” Dynisco slide plate hydraulic screen changer mounted vertically to the barrel