The dustless sandblasting machine uses compressed air to move the abrasive from one end to the other. During the movement, the abrasive washes the surface of the object and cleans the surface of the object. Sandblasting improves the adhesion between it and the coating, extending the durability of the coating film. At the same time, the impurities and oxide layer on the surface is removed to roughen the surface of the medium. Sandblasting is a widely used process in machinery manufacturing. For forging, casting, and heat-treated parts, sandblasting is required to remove the oxide layer on the surface.