One gallon union process "szegvari" attritor, model 1-s, serial #@ 940804. Features jacketed one gallon steel grinding tank, removeable enviorment tight steel cover and gas flushed shaft seal for closed enviorment grinding, grinding shaft with bottom lifter arm, spare agitator shaft (serial # 940804), driven by reeves two horsepower variable speed drive with manual speed control, 280 to 2000 rpm belt driving agitator, ul rated for hazardous locations under class 1/group d & class ii/groups f & g, 230/460/3 phase voltage, 6. 4/3. 2 amps, top mounted mechanical tacometer, electric timer, stop/start, mounted on factory stand 24" wide x 36" deep x 24" table height and 68" oah. Formerly used for dry intert gas grinding. See video demonstration on our you tube channel at https://youtu. Be/4mu3w7c10ye