What is the distance that most saves sandblasting materials?

What is the distance that most saves sandblasting materials?
During the splashing process, the closer the white corundum processing surface is to the part, the worse the effect and the more sand is wasted. This is because the working distance interchanges the size of the blasting area, increases the cycle time, and can crush the sand more easily, thereby shortening its refractive index. This idea is somewhere between the two, allowing you to find a good balance between sand abrasion rate and sand abrasion rate. Manual placement and injection system, 6 to 8 inches. When using direct injection system pressure, you should be at a distance of 10 to 14 inches. Also remember that no matter what blasting method you use, the closer you are to thin workpieces, the more likely they are to deform. In addition, find a suitable distance, be sure to avoid deformation of the sprayed part.