Used Sturtevant Sample Grinder, Model O-6, Carbon Steel. Approximate capacity 50 to 200 pounds per hour, product size 20 to 100 mesh. (1) 6" grinding disc, driven by a 2 hp, 1/60/115/208-230 volt, 1725 motor. Hinged door with (1) stationary 6" grinding disc. Approximate top inlet 4-1/4" x 3", bottom outlet 5" x 2-1/2". Mounted on a carbon steel frame. Serial #1167.