KWS replaced the existing screw feeder with a 6-inch diameter variable pitch screw feeder. The variable pitch design provides a controlled feed of dextrose to the slurry. The flights of the screw were continuously welded on both sides of the center pipe for extra strength and durability. The inclined screw feeder utilized a split tubular housing to contain the free-flowing dextrose and provide the most efficient design. A purgeable shaft seal was used on the tail end to prevent leakage of dextrose. KWS selected an integral-motor Dodge Quantis drive due to space constraints and to provide lower energy consumption. The screw feeder design included a KWS torque arm trough end to permit the drive unit to “float” on the drive shaft, eliminating any overhung load and stress on the rigidly welded screw. A pillow block roller bearing is located on the drive end to support the screw and function as a thrust bearing.