Automatic tracked sand blasting machine 1..Automatic control .automatic blasting sand with regular blasting sand.jog positioning etc functions 3.Novel design ,elegant ,simple structure,and easy to operation 4.Front drum .easy to change and take work pieces 5. The machine recovered sand by transmission/bucket elevator method ,can use any sand (like steel grit ,steel shot etc hard sand) 6 With same nozzle diameter ,the efficiency of pressure sandblasting machine is 3-5times than common suction sand blasting machine