New and used feed grinders, which make grains easier for livestock to digest, are available as grinder mixers, rollermills, andhammer mills. Peerless RollerMillOn Wheels,540 PTO, Has Corn & Milo Rollers, 20" Opening, Milo Rollers Are 30" & 40" Long, Serial 122402167. The Up Tight Auger Is Not Attached Now But Is Shown In Pictures.