### bond work index - an overview | sciencedirect topics

Equations (4.47) and (4.48) can be used to replace P80 and F80 in Equation (4.49) to give the power drawn in terms of the crusher dimensions of gape, closed set and throw: (4.50) Power = W i Q 10 1 700, 000 (L MIN + L T) − 1 630, 000 G Simplifying Equation (4.50), the power required for …