Principle of stainless steel grading wheel operation: Under the force of the fan's suction, materials move with the ascending air flow to the grading area. Driven by the strong centrifugal force generated by the high-speed rotating grading turbine, coarse and fine materials are separated. Fine particles meeting the particle size requirements pass through the grading wheel into the cyclone separator and dust collector for collection, while coarse particles descend to the crushing area for further crushing.

The motor drives a stainless steel grading wheel to rotate at high speed (speed is adjustable) within the grading housing, generating a strong centrifugal force within the grading machine.

The gas-powder mixture entering the grading machine first goes into the internal grading wheel. Under the force of centrifugal force, larger or heavier particles are subjected to greater centrifugal force and are thrown to the outer edge of the grading wheel and the side wall of the grading machine, where they no longer feel the effect of centrifugal force and naturally fall into the crushing main unit for further crushing or drop to the discharge port for collection. Smaller or lighter materials are subjected to less centrifugal force and hover within the grading wheel. Influenced by the suction force of the induced draught fan, they are carried to a higher position and then smoothly moved along the pipeline to the next component where they are graded or collected. By adjusting the speed of the grading wheel through frequency conversion, the size of the centrifugal force in the grading machine can be controlled, achieving the goal of separating particles to the required size.