The DSR28 is a feeder ideal for poor or difficult flowing bulk ingredients at low feed rates. The feeder has the following main components: a stainless steel screw trough, an agitator in the screw trough, a screw, a screw tube, a 3 phase AC motor and extension hopper with volumes of 5 dm³ (0.18 cuft), 10 dm³ (0.35 cuft) or 20 dm³ (0.71 cuft).