A low-grade (40% Fe) iron ore mining operation is using a 38.3 m CAT 7295 shovel under the conditions summarised in Table 1. Table 1 - Operating conditions for 38.3m CAT 7295 shovel at low grade iron ore mine. Parameter Material Bank Material Density Swell factor Average Cycle Time (Swing Angle = 90) Active Operating Time Value well-blasted rock, medium hard digging conditions 2.96 t/m 1.613 53 s 55 min/h Angle of swing 45 60 75 90 120 150 180 1.20 1.10 1.05 1.00 0.91 0.84 0.77 Swing Angle Factor (S) Figure 1 - Shovel swing angle factor