The silicon metal powder made by industrial silicon metal lumps can be classified into coarse silicon metal powder, fine silicon metal powder, and ultrafine powder, which can be used as main raw materials for high-temperature refractory materials, iron, aluminum alloy, silica sol, and organic silicon.

The main and most widedly used production method of silicon metal powder are  ball milling method, roller milling method, and punching method. The main equipment: ball mill, roller mill, and punching machine are different in meeting the quality and technical requirements in powder making. . The first two are squeezed, milled and crushed under gravity, and the latter is crushed by impact. All kinds of mills can process and pulverize non-flammable and explosive minerals with Mohs hardness lower than 7.0. The particle size of the finished product is adjusted through the process and controlled within the range of 30 mesh (0.613mm) to 425 mesh (0.033mm).

Brief description of silicon powder production process:

①Silicon lumps in bags → crane or forklift unloading → jaw crusher → bucket elevator → ≤15mm silicon lumps storage bin → electromagnetic vibrating feeder → milling machine → cyclone separator → powder collection bin → sieve Extension (vibrating screen) → finished silicon powder → bag filter → dust collection tank → exhaust fan.

②Silicon lumps →crushing→belt→bucket elevator→milling machine→gas-solid separation→sieving→finished product warehouse