Screw Feeder DDSR20 2.0 (DC-Smart) Volumetric and gravimetric General Information The DDSR20 feeder is ideal for difficult flowing, sticky or floodable 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 twin screw, a screw tube, a 3 phase DC smart motor and an extension hopper with volumes of 5 dm³ (0.18 cuft), 10 dm³ (0.35 cuft) or 20 dm³ (0.71 cuft). The smart motor is characterised by an extremely high adjustment range of 1:100. The horizontal agitator works to consistently fill the screw and prevents hopper bridging while providing mass flow. This results in optimal feeder accuracy and control. The DDSR20 is easily disassembled for wet or dry cleaning by releasing three quick release clamps from the gear motor assembly. All service is from the front or rear. The gravimetric version includes the weighing systems MD2 und MD3 featuring a high-resolution digital load cell with serial data transmission as well as MS2 and MS3, with strain gauge load cell with advanced filtering technology. The unit conforms to CE directives. Model Specification Screw drive Drive power Screw speed Screw speed optional Trough agitator Separate agitator drive * not necessary, due to extremely high adjustment range of 1:100 Control Modules Control and speed modules are offered either mounted onto the feeder (Congrav® CM-E) or are available for mounting in a separate control panel (Congrav® CB-E or Congrav® CB-S ). Controls can communicate directly to most host/ PLC systems or to Brabender Technologie Congrav® Operator Interfaces. Technical Drawings and Dimensions volumetric feeders gravimetric feeders Control module CB 5 dm³ (0.18 cuft) Hopper 10 dm³ (0.35 cuft) Hopper Kubota Brabender Technologie GmbH, Kulturstr. 49, 47055 Duisburg, Tel.: +49(0)203 9984-0, [email protected] Changes reserved status:

Screw Feeder DDSR20 2.0 (DC-Smart) Volumetric and gravimetric Available Screw Sizes and Feed Rates Designation Ø / p [mm] Tube designation Control range Screw drive Double spiral Screw (SS) Screw type * Theoretical values at 100% screw filling level and motor speed. Depending on the flow characteristics the screw filling level may decrease to 50%. Further limitations must be considered for gravimetric feeding as max. speed should be reduced to allow for bulk density variations. The values in brackets refer to optional motors. How to read the table of screws Technical Specification Ambient temperature:...