The mining process can be extremely effective with Sturtevant’s mills, crushers and air classification equipments. Jet mills, air classifying impact mills and pin mills are used in various degrees of impact and agitation to grind
and classify the minerals. The crushers are best-suited for controlling the reduction of friable materials to
granules where fines are undesirable. Crushers also reduce particle size for fine grinding to coarse crushing capabilities.

Air classification provides the most effective means for separating a product from a feed stream, for dedusting,
or when used in conjunction with grinding equipment for increasing productivity.

Aggregates, crushed stones, hydrates lime, pigments, sodium bicarbonate, titanium dioxide, clay, diatomaceous earth, gypsum, limestone, silica sand, talc, coal, phosphate ore, sodium bicarbonate, trona, salt, perlite ore and gem stones are great examples of types of minerals that often need to be size reduced or air separated in the mining industry.

These products air classify and size reduce minerals: