Special procedures for the production of special sand are required besides the conventional procedures for the processing of glass resp. foundry sand. Sometimes specified grain sizes as well as mixtures of different grain fractions are demanded that do not allow the tolerance threshold of the grain-size distribution curve to be exceeded. A constantly good and steady classification as well as an absolutely efficient desliming and washing have to be assured. Special sands are used in various fields, and MAB Special Sand Devices adapt to these individual requirements.
