Estimated investment and operating costs
Fragmentation applied to metallic ores

Two methods are possible: an analytical one involving the cost of each piece of equipment, and a global comparative one based on the cost of an existing workshop of known capacity.

• The first method, which is a very general Anglo-Saxon method applicable to all industrial processes, involves all costs relating to the various equipment and a factor f_i derived from statistical data. For fragmentation plants, both crushing and grinding, the average value of the f_i factor is around 3.2, due to the specific constraints of the mining industry. The investment cost C follows the relationship :$C={\displaystyle \sum _{i\text{=}1}^{i\text{=}p}{f}_i{C}_i}$

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