Used Stainless steel hopper, approximately 50 cubic feet. Top section measures 4' X 5' X 1' and pyramid section measures 4' X 5' X '3'. Manufactured by Rietz, Model C-12-K7208-6. Top opening measures 4' X 6'. 12" diameter screw discharge with open top. 3 HP motor, 3-phase, 460 V, 1160 RPM. Last used as ore hopper. Good condition.