HL-Q69 series roller conveyor type shot blasting machine is mainly used for the surface treatment of the plate, profile, pipes, bars and structural parts, etc. Wide range of uses, cleaning variety of the workpiece, effective, easy to operate, environmental protection and other indicators to meet the national standards. Especially suitable for continuous and uninterrupted working, the main working principle is by the conveying system (frequency surface of the workpiece, to remove the rust, oxide skin and dirt from the workpiece surface, then use the high strength rolling brush, shots collecting screw and high pressure blowing pipe to clean up the shots and the dust on the surface of the workpiece. Presence of the natural metal color, out by the conveyor roller. So that the workpiece can be achieved the purpose of cleaning and strengthening.