A shot blasting machine is easy to operate and requires very little training. All you need to do is install a control valve and set the parameters for the optimum blasting pattern. You can check the ejection pattern in the machine's manual. By adjusting the directional sleeve, you can adjust the shot ejection pattern to get the best results. After the shot material feeds into the impeller, it shatters the metal rust on the steel plate.The shot blasting machine is designed to direct an abrasive stream of material onto the surface to be blasted. Its primary component is the blast wheel, which consists of an impeller wheel and a spindle. During the blasting process, iron shots fall into the wheel's impeller, which causes it to rotate. The spinning wheel hurls the steel shot toward the surface.