Rotary/rolling drum/barrel type shot blasting machine is suitable for surface rust removal of small work pieces(forging or casting parts) in batch production with many varieties. Put the work pieces into the barrel and blasting it in side way.
The high-speed impeller throws the abrasive to the continuous tumbling castings or forgings in barrel, to remove the green sand or scales on the surface. It cleans evenly and its productivity is high, so it is suitable for cleaning the small work pieces whose weight are under 15kg in medium or small-scale casting or forging workshops.
The central feature of the shot blast machine series is the geometry of the rotating barrel. The inside wall of the barrel features specially contoured ridges, while the bottom is shaped in the form of a three-sided pyramid. This unique design creates the innovative "multi-tumbling" action of the different barrel elements: when the drum rotates, the ridges on the internal wall of the barrel tumble and mix the work pieces. At the same time the pyramid causes the parts at the bottom of the barrel to move to the top of the mass. This multi-tumbling action ensures that the blast stream reaches all surface areas, thus producing even and consistent blast results. Brightly cleaned parts surface, free of sand, rust or scale, are achieved in short cycle times with a highly consistent finish.
Application
The high-speed impeller throws the abrasive to the continuous tumbling castings or forgings in barrel, to remove the green sand or scales on the surface. It cleans evenly and its productivity is high, so it is suitable for cleaning the small work pieces whose weight are under 15kg in medium or small-scale casting or forging workshops.
As the machine has individual dust-collecting device, the installation spot is not limited by the ventilation pipelines in workshops. The cleaning condition is fine.
The machine is equipped with auto-stop device, so it is convenient to operate.
Work process
Put the cleaning work piece into the barrel and close the end-cover, and then adjust the cleaning time. First, move the semi-nut needle to the desired position, and then start the machine in turn. After the barrel rotating, the helical ribs on the protecting board tumble the castings continuously, to make each surface cleaned evenly. Through the hole, the abrasive flows into the middle-wall, then through the screw belt conveying to the box-shaped frame, via elevator carrying to the top of the separator. Screen such big core-sand and burrs, etc, the small sand, dust and abrasive are carried away by the airflow. The integrity shot flows into the blast wheels for continuous usage.