BOC launches CryoClean Snow+ cleaning process

CryoClean Snow+ from BOC combines dry ice blasting (using CO2 dry ice crystals) with sand blasting to provide a method for cleaning industrial products such as machinery, process equipment and conveyor belts. It is also useful in additive manufacturing, where it can be used to remove oxides from the surfaces of metal materials, and to clean polymers. By changing the ratio of CO2 and abrasive material, the operator can adjust the intensity of the cleaning process to match the condition of the surface.

CryoClean is a dry cleaning process in which liquid CO2 is pressurised to 60 bar, creating tiny dry ice crystals known as ‘snow’. When the snow is accelerated on to the component using compressed air, the contaminant becomes brittle. The gas jet then permeates cracks and lifts the contaminant off the surface, after which it is expelled through exhaust systems.