driven by 2-speed motor, 0.75 kw, 3/50/380-420/220-240 volt, 1400 rpm or 0.90 kw, 3/60/440-480/250-280 volt, 1690 rpm, hopper chamber also has lump breaker, shaft driven by same motor as the screw, openings top 1-300 mm (feed), 1-200mm (with bursting disc),