Paint removal, rust removal, cement slurry concrete roughening, small advertisements removal, pavement zebra crossing, of course, 500 kg sandblasting machine completely ended the serious problem of dry sandblasting pollution, and dust was well controlled. Different from the current wet sandblasting equipment, the water sandblasting machine requires very little water and can quickly evaporate, so it will not cause large areas of water accumulation. The spraying pressure can be adjusted at will between 0.8 Mpa. Under the same working condition, the amount of sand it uses is only five times that of dry sandblasting.