(PDF) Fine grinding in a horizontal ball mill
The feed top size determines the largest ball size required for particle breakage. Bond found that for a given feed size the largest size ball required could be estimated using Equation 1. According to this equation, and the mill conditions in Table 3, the top ball size for the 55, 100, 500 and 1000 µm feeds are 10, 14, 30 and 43 mm respectively.