Equipment selection for crushing, grinding, screening, preliminary concentration is inseparably associated with the necessity to study physical and mechanical properties of raw materials.

When conducting studies and developing concentration technologies JSC «Uralmekhanobr» determines:

  • Ore hardness by Protodyakonov;
  • Crushability;
  • Grindability;
  • Bulk weight depending on size grades;
  • Water absorption;
  • Bond index;
  • Crushability for mass crushing conditions;
  • Crushing uniformity;
  • Ores inclination to spontaneous combustion;
  • The least concentration limit for flame distribution in dust air mixtures.