The working principle of the stainless steel grading wheel: Under the action of the fan's suction force, materials move with the rising airflow to the grading area. Due to the strong centrifugal force generated by the high-speed rotating grading turbine, coarse and fine materials are separated. Fine particles meeting the required particle size pass through the grading wheel and enter the cyclone separator and dust collector for collection, while coarse particles fall to the crushing area for further crushing.

The motor drives the stainless steel grading wheel to rotate at high speed within the grading housing (speed can be adjusted freely), generating strong centrifugal force in the grading machine.

The gas-powder mixture entering the classifier first goes into the classifier wheel, where, under the force of centrifugal force, larger or heavier particles are subjected to greater centrifugal force and are thus ejected to the outer edge of the classifier wheel and to the side wall of the classifier, no longer influenced by the centrifugal force, and naturally fall into the crushing main body for further crushing or drop to the discharge port for collection; smaller or lighter materials experience less centrifugal force, hover inside the classifier wheel, and are carried to a higher position by the induced draft fan's force, then flow through the pipeline to the next component for classification or collection. By adjusting the speed of the classifier wheel through variable frequency regulation, the size of the centrifugal force in the classifier can be controlled, thereby achieving the goal of separating particles to the desired size.