### A General Model for Semi-autogenous and Autogenous Milling

an 8 m diameter SAG mill with LID = 0.5 grinding a copper ore, and predicted maximum .... by. [6] where ~ is fraction of critical speed and c. A g ... Also, by definition Ji+l(dP/dr)dr=w i., so it ..... Bond work index of 19 kWh/ton metric. These tests...