### How to Size a Ball Mill -Design Calculator & Formula

Apr 08, 2018· Mill Selection. The first step in mill design is to determine the power needed to produce the desired grind in the chosen ore. The most used equation, for this purpose, is the empirical Bond equation (Bond, 1960, 1961; Rowland and Kjos, 1978). ... Ball milling – a ball mill with a diameter of 2.44 meters, inside new liners, grinding wet in ...

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