THE KNELSON CONCENTRATOR: APPLICATION AND OPERATION
minus 300 mm. On the surface the ore passes through a jaw and a cone crusher, both of which are in open circuit, after which the minus 40 mm ore enters two fine ore bins, providing 8000 tonnes of storage. The Rosebery concentrator operates on a 12-hour, seven day, continuous shift roster. Throughput varies from 75 to 85 tonnes per hour.