Aspiratory capacity, low power consumption.Each tank with suction, suction flotation pulp and its flotation circuit, without any auxiliary equipment, level configuration, easy to process changes.Slurry tank for the next cycle is helpful for coarse grain mineral suspension recovery.Pulp surface with hand-control, self-control and electric control device to regulate the convenience. Impeller cut-off is consisted by the closed double cone, which can have a strong circle of pulp.