text: The Falcon semi batch centrifugal concentrator is primarily used for the recovery of free (liberated) precious metals such as gold, silver and platinum. The machine generates forces up to 200 times the force of gravity (200 Gs) and makes use of a two-stage rotating bowl for mineral separation. The smooth-walled lower portion is for particle stratification and then a fluidized upper portion is used for the collection of the heavier particles. The machine is stopped periodically to rinse and collect the valuable concentrate from the bowl. The Falcon SB concentrator is used for gold recovery at many mines around the world, including Quadra FNX Minings Robinson mine in the United States, Newcrest's Telfer Gold Mine in Australia and the Sadiola Gold Mine (owned principally by AngloGold Ashanti and Iamgold) in Mali.