Harnisch+Rieth Spot Blaster F-S 40 pneumatically driven mixing chamber system saves as much as 70 percent in blasting materials. Interior is spacious and well lit and uses a precise sealing technique. Controller provides abrasive jet pressure and volime, which the gauges display. User can easily switch between blast containers right in the cabin. Maximum airflow ensures a dust free environment. The unit provides reliable and steady sandblasting (Beginning with 0,5 bar working pressure)