It is the machine where it is used to separate dust bran like materials are carried by air which was produced in air fan.
The air that transports with dust or bran enters from the top of the cyclone in the center and it creates form a kind of vortex. In this vortex, the materials which heavier than the air, move downward by rubbing though the cyclone wall. The air separated from the dust is discharged from the top of cyclone.