A feed that typically goes through a mesh size of 3.62 mm for 80% of its 100 tonnes per hour was shrunk down to a mesh size of 2.47 mm for 80% of the crushed product. 250kW of power was used. The amount of power used will be if 100 tonnes per hour of the same material are similarly crushed from a mesh size of 6.02 mm to 2.60 mm.