Since 1987 Peacocke & Simpson has been proudly associated with FLSmidth-Knelson, recognised world leader in gravity concentration. Our Knelson-certified lab is equipped with Knelson 3, 4.5 and 7.5 semi-batch concentrators, all of which have variable speed drives to provide up to 200g of centrifugal force. We undertake all forms of Knelson testing for precious metal recovery, from stream tests on coarse crushed ore or placers to high-G testing of products at less than 15 micron particle size.

Our Gravity Recoverable Gold (GRG) test procedures allow us to simulate and model Knelson circuits at plant scale, to enable optimal circuit design and/or to optimise existing circuits.



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