In sand and gravel production, 0-4.75mm machine-made sand is formed after crusher, sand-making machine and vibrating screen. The machine-made sand contains certain powder. If used directly in concrete, the quality of concrete will be affected. In order to improve the quality of concrete, the powder content of manufactured sand must be reduced. Powder Separator also is known as powder concentrator is a kind of machine to separate the powder from sands.

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