Metallurgical Testwork & Recovery • Published September 25, 2026
Comminution & Bond Work Index Testing for Mill Grinding Circuit Optimization
Energy Efficiency in Mine Processing Plants
Grinding circuits account for over 50% of total electrical power consumption in modern gold extraction facilities. Accurately sizing ball mills, SAG mills, and pebble crushers requires standardized comminution testwork.
Bond Ball Mill Work Index (BWi)
Using precision laboratory ball mills calibrated to international standards, RVA Labs calculates the kilowatt-hours per metric tonne required to grind ore from an initial feed size to a specified target product size (typically 80% passing 75 microns).
Abrasion Testing
Coupled with Bond Abrasion Index (Ai) evaluations, comminution data enables plant engineers to accurately forecast liner wear rates, grinding media consumption, and plant operating costs prior to construction.