The traditional preparation of lightly burned magnesia ball is to add 80% lightly burned magnesia powder into the binder, then put it into the mixer for rolling, stirring and mixing for 15 to 20 minutes to form the mixture. The product is prepared by the belt conveyor and sent to the ball press, and then stacked. The finished product of light burnt magnesia ball is dried in shade for 48 hours and forms strength for sale.

This kind of magnesia ball is common in steel enterprises in the northeast and coastal areas, because there are rich magnesite resources in the northeast and brucite in the coastal areas. Especially in some chemical enterprises, the residue after chlorine gas preparation by electrolysis is basically an industrial waste, which can be prepared into magnesia ball with low price and good quality. The ranking of magnesia ball is higher, and it can reach more than 65%.

In addition, the content of MgO in the spheres used by other enterprises is basically between 45% and 65%.