August 2017 marked 20 years of GCA operations, and 20 years of a dedicated Knelson® Concentrators agent servicing the entire African continent - GCA (Gravity Concentrators Africa) having [...]
In 1976, Benjamin Virgil (Byron) Knelson changed the face of the gravity concentration industry to what mining professionals know it as today. This was the year the the first Knelson Concentrator [...]