HJ and XQB Series adopt high-efficient blast wheel with world-advanced unit and throw high-speed and dense shots; when entering cleaning chamber through roll table and hit by shots from all directions, workpiece could be cleaned solid and full-directionally, rust layers, welding slag, roll scale and their feculence on the surface of steel will shed quickly, obtaining smooth surface with certain roughness, increasing fatigue strength and prolonging its use life; and customers could select according to their own demands;