KYF-II-50 Silicon Carbide Impeller for Large Flotation Cells In a 50 m³ KYF-II-50 cell, the impeller has to move an enormous volume of pulp while standing up to relentless abrasion. Our silicon carbide composite impeller is built for exactly that duty, holding its profile in the hardest, most demanding circuits. Design highlights Silicon carbide composite for maximum abrasion and corrosion resistance. Profile matched to the KYF-II-50 to preserve air dispersion and pulp