The stones are loaded on Rubber Belt Conveyor System. These stones are transferred into work chamber. The work chamber houses 1 No. horizontally mounted blast wheel station in line with rubber conveyor which fire abrasive on stones. The stone duly shot blast cleaned while they are Passing through blast stream zone. The stone come out from the outlet portion of the machine and removed manually. The conveyor speed is variable. The machine is provided with inlet and outlet vestibules. Sufficient No. of rubber curtain are provided to trap escaping shots. The entire machine is ventilated by powerful Fabric Bag Type Dust Collector