The micro-feederis is used to mix the additives in the material. The micro-feeder MZMC is a module designed for high-precision volumetric proportioning of micro-ingredients. Its throughput rate can be selected across a very wide range. For accurate control of the gravimetric addition of micro-ingredients in a continuous product stream, Bühler offers its micro-differential proportioning scale MSDC. Operating in the batch mode, this differential-weight scale based on the “single-screw” principle weighs small batches defined by the product recipe.