The formulated raw powder is poured into the Blender sequentially to shorten on the blending time and achive better blend to the powder. Upon finishing the blending, the machine operator may open the sliding door located at the bottom of the Blender to discharge the blended powder to the Conveyor A and transfer to the Silo. The Silo will store the blended powder and act as a buffering station to control the feed rate over the Siever. The Rotary Valte at the bottom of the Silo is to control the stored powder to be transferred to the Siever orderly. Siever is then sieving the incoming powder and separates the fine and coarse powder apart. And the screw conveyor at the bottom of the Siever will then transfer the siever powder for packing and ready for coils production.