hopper welded top, feed has s/steel rotary lock valve driven by 2-speed motor, 0.5 kw, 3/50/380-420/220-240 volt, 1400 rpm or 0.5kw, 3/60/440-480/250-280 volt, 1690 rpm, openings top 1-200mm (feed), 1-50mm, side 1-50mm, 1-25mm (sensor), bottom 1-250mm, with insulation and cladding