Ten years of research and development were needed for the design and refinement of several ranges of high frequency non-ferrous metal separators based on the theory of Eddy currents. Their reliability and efficiency have been proven in high output production units continuously operating for several years. These conditions of manufacturing use enabled our technicians to gain an understanding of technical parameters and physical phenomena. The sensing and separation possibilities are multiple : – metal parts in non-metallic flow. – non-ferrous metals among the flow. We are optimizing the design of our separators from the layout study thanks to this experience feedback. As a result of our thinking and know-how, several Andrin patents have been filed.