1, depending on the size of the workpiece, choose box sandblasting machine, mobile sandblasting machine, and automatic sandblasting machine;  
2, depending on the shape of the product, choose the specifications of the sandblasting machine. Generally, there are fixed specifications below one meter. Especially large ones should be customized or choose open ones.  
3, the surface requirements of the product, the specific depends on the use of dry spray or wet spray, if it is dry spray, abrasive choice is a lot, wet spray is generally glass sand and so on.  
4, some parts of the sandblasting machine to be familiar with, sandblasting gun and sandblasting gloves are often changed, because sandblasting is actually very badly worn.