Attritor mill, complete with 304 stainless steel jacketed can, measures 9″ diameter x 8-1/2″ deep, with 2 piece top cover. Unit has carbon steel jacket with 2″ side bottom outlet. Unit is driven by 2 Hp Reeves variable speed motor, 276 minimum RPM, 2,000 maximum RPM. Mounted on mild steel frame. No nameplate but appears to be Union Process model Q1.