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Chat OnlineBall mills mine engineercom the point where the mill becomes a centrifuge is called the critical speed and ball mills usually operate at 65 to 75 of the critical speed ball mills are generally used to grind material 14 inch and finer down to the particle
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Chat OnlineTechnical notes 8 grinding r p king the critical speed of the mill c is defined as the figure 83 simplified calculation of the torque required to turn a mill to size a ball mill or rod mill
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Chat OnlineTechnical notes 8 grinding r p king the critical speed of the mill c is defined as the figure 83 simplified calculation of the torque required to turn a mill to size a ball mill or rod mill
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