#### Loveday/Barratt SAG model

The power numbers that Barratt published are based on mills with 'typical' cone-ends (probably 15° to 25°). A flat-ended (shell-supported) mill is expected to have 5% less power draw. Model Form. Loveday's equation is: Where: P is the power evolved at the mill shell, kW; P N is the empirical power number read from the chart below

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