The main reason for the noise of the pass-through shot blasting machine is the friction between the steel shot and the blade, because the steel shot will quickly enter the root of the blade during cleaning, but it is inevitable that the steel shot and the blade will slide during this process. Friction, and also rolling friction, because these frictional forces with a high coefficient of friction create a noise, and these noises are also very uncomfortable to hear. The noise of the pass-through shot blasting machine is also caused by friction, but it is the friction between the shot wheel and the steel shot and the directional sleeve. If the gap is not large, the sound of friction will be more violent. If it is serious, it is likely to crush the steel shot, and in more serious cases, it can also destroy the components. , so that cracks appear, which is also the main reason for the friction noise of the pass-through shot blasting machine.