Pebble Mill Grinding - Mineral Processing & Metallurgy
The media charged to a pebble mill should be between 50% to 55% of the mill volume. The desirable characteristics of such grinding media are that they should be tough, hard, heavy, and resistant to any chemical action, with the material to be ground. Pebble consumption generally averages 2# per ton with a wide variation of between ½# to 9# per ton.