working principle:
By mechanically shooting the shot (steel shot or sand) at a high speed and a certain angle on the movement trajectory of the working surface, the impact energy of the shot is made to achieve the roughened surface of the shot, removing the residual impact, and at the same time, There will also be a negative pressure filter and blasting dust recovery after the airflow impurities are cleaned, the cleaned materials will be recovered as a complete lens, and impurities and dust will fall into the dust box.