Haiwang LXA spiral chute is the separation equipment of dividing concentrate and tailing in accordance with the difference of density and particle size. When the slurry flows to spiral chute, the combined effection of gravity, centrifugal force,friction and water flow pressure forced by the light and heavy particles inside of spiral chute is different, the material with different particle size and density moves under different tracks inside of the spiral chute. Finally, concentrate of big density and big particle size gets discharged from the inside edge of spiral chute. The tailing of small density and small particle size gets discharged from the spiral chute. The spiral chute is the common equipment for the classification and separation of fine particled minerals in the beneficiation factory.