"Introduction to Knelson concentrators was in Peak Gold Mines, Cobar NSW, where 3 30" machines were used, the first of their kind to be painted deep blue. This circuit was treating SAG discharge -2mm, and saved a lot of money in reduced cyanide consumption and improved recovery. For the last number of years, major effort has been placed in testing, designing and installing one of the world's biggest single time installations of KC-XD48, 12 in total, at PT Freeport, West Papua, Indonesia. In this circuit, the gravity circuit has been installed within the primary ball milling circuit, treating cyclone underflow. The new 70" Knelson, if available at the time of design, would have been seriously considered for installation. Look forward to having the opportunity of taking the next step and experiencing the 1000 t/hr machine, having already worked with the 2 predecessors, 48" and 30"."
- Adrian Zarantonello, Superintendent Metallurgy - Projects - PT Freeport, Indonesia
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