Achieve highest coarse and fine gold recovery with a Knelson gravity concentrator

Compare our gravity concentrators

Key equipment features of our gravity concentrators

GX concentrating cone

Our patented GX concentrating cone lies at the heart of our latest-generation Knelson QS concentrators, an innovative step in metallurgical performance. Zone separator nozzles provide effective control and distribution of fluidisation water across the entire cone, facilitating the highest possible recovery of coarse and fine gold.

Tangential water distribution

The GX cone features tangential introduction of fluidized water into the concentrating rings, avoiding ratholing and dead spots. It also allows thorough flushing of the unit without the need for expensive and unnecessary variable frequency drives.  

Designed to eliminate vibration

We designed the Knelson gravity concentrator with a low centre of gravity and to be hung rather than supported from below, eliminating overall vibration. In contrast, similar products on the market can face problems with vibration if the feed is not properly diluted. 

Low number of parts

Knelson gravity concentrators are designed to reduce component parts, simplify construction, and reduce manufacturing time. These measures cut maintenance costs without impacting recovery rates or capacity.  

Complete gravity circuit operations

Downstream processing of gravity-produced concentrate involves leaching. For a seamless gravity circuit operation, we recommend the Consep Acacia intensive cyanidation system. Featuring an up-flow fluidised reactor specifically designed for the leaching of Knelson concentrates, the Consep Acacia system creates the ideal solid-liquid interaction, maximising gold leaching reaction kinetics without the need for mechanical agitation, and typically achieving recoveries of more than 95%, often over 98%. Over 20 years, it has become the market leader in its field, maintaining an unblemished installation success rate with its reliability, simplicity and productivity.