Ore crushing and screening, grinding and classification are essential preparatory work before separation to get proper ore size. There is a balance to keep proper ore size neither too rough (insufficient liberalization) and too fine (over-crushed) in order to achieve high recovery rate and high efficiency.

Requirements to ore size is dependent on separation method. For example, it is too difficult for gravity separation with ore size below 19μm and size below 10μm is not preferred by flotation.

Given certain output size requirement and input ore property (hardness, density, adhesiveness, feed size, moisture and clay content, etc.), equipment for crushing and grinding is selected to meet the treatment capacity and input and output requirement. Besides, power, weight, configuration, infrastructure investment, management cost and readiness for operation are the key factors for equipment selection.

Combining field operation experience with data from laboratory test and pilot plant, Metalcess is able to provide customer-tailored crushing and grinding process and high efficient, energy-saving and durable equipment. It guarantees uniform grain size and further better recovery rate in separation.

Metalcess is the expert for ore test, process design and engineering and equipment selection and supply.