Minco Screw Conveyors (also called Auger Conveyors or Helix Conveyors) are engineered to move granular, powder or liquid materials by using a rotating helical screw blade within a trough or tube. They are typically designed to convey bulk materials at 15, 30 or 45-percent trough loading, depending upon material characteristics of the specific bulk material. Typically, trough loading of 45-percent can be used for light, free-flowing and non-abrasive bulk materials. Trough loadings of 15 and 30-percent are typically used for denser, sluggish and more abrasive bulk materials.