Mfr: Champion. one(1) used 15 hp Champion Products Hammermill 12" x 24" inlet Does not include a feed hopper. Outboard roller bearings. 4 rows of blades, 6 arms in each row. ... Hammer mill, carbon steel product contact parts, driven by 25 HP 208/230/460 volt, 3-phase, 60 Hertz,1725 RPM main motor drive. Unit s 12" x 14" feed hopper.