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Ball mill

A ball mill uses steel (or rubber) balls to grind material.  A rotating drum carries balls up the rising side of the rotating shell, where they the fall upon the raw material below.

Ball millls provide a relatively efficient method of grinding in terms of power requirements, speed of grinding, and capacity for continuous operation. Ball change is often in the order of 30% of mill volume. Ball mills are typically smaller in diameter than SAG mills. Compare also rod mills.




(animation courtesy Lưu Ly)


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