stone color sorter could distinguish impurities from good mineral by means of the color sorting technology. Details Stone colour sorterâs unique modular design of automatic dust removal combined with automatic spray from the maintenance function, ensure the equipment continuous working condition for a long time. Body parts ng with materials are equipped with a protective layer, the protective layer is characterized with wear-resisting, corrosion resistance, easy to change, to ensure that the service life of the machine for a long time.