This is a specialized variant of the Knelson Concentrator 3-inch Lab Model, operating on the same principles of enhanced centrifugal gravity separation for mineral recovery. The key distinction is its use of air for fluidization instead of water. This modification makes it suitable for dry processing applications, offering a solution for mineral separation in environments where water is scarce or where dry processing is preferred to avoid issues like clay dispersion or dewatering challenges. It is designed for laboratory-scale testing and research into dry gravity concentration methods.