Morgardshammar

N = C X W X Rg Xn
where N is gross mill power, W is the weight of grinding media in Kg, n is RPM of the mill, Rg is the distance in meters of the center of gravity from the mill center,
Rg = 0.255Xd where d is the diameter of the mill, and the value of C is 1/1470.

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