Acrison’s Model 1015 Series of Volumetric Feeders for dry solids feature a dissimilar speed, dual auger/agitator metering mechanism in a specially contoured feed chamber. Rotation of the larger 'conditioning' agitator produces bi-directional agitation of product within the feed chamber to ensure positive downward flow into the metering auger beneath. When permitted to feed until empty, only a minimal amount of residual product will remain in the feeder.