XJK-A series flotation machine is suitable for the flotation process, the ferrous metal mineral, also available in non-metallic mineral classification; it is suitable specially for the ore ,which is contaminated of fine grain, and ingredient complex, as the mineral separation process is able to obtain the good separation effect. The merit : The air input and the productivity are big; its structure is simple, thus the service is convenient; the impeller and the lap are composed of the wear-resisting rubber, which may carry on the design according to the user.