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Ball mill. A typical type of fine grinder is the ball mill. A slightly inclined or horizontal rotating cylinder is partially filled with balls usually stone or metal which grind material to the necessary fineness by friction and impact with the tumbling balls. Ball mills normally operate with an approximate ball charge of 30 .

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How does the ball mill work CR4 Discussion Thread. Jan 17 2011 Ball mill works due to the attrition impinch and impact of the balls on the material to be crushed.When the mill rotates there is a cascading action happening and the balls which have more weight falls on the material to be crushed.

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