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The pieces to be grit-blasted are hung from the conveyors hook in clusters and are transported automatically into the tunnel where they are blasted by the grit fired at them from the turbine blowers. The onward movement of the clusters occurs step-by-step through the chamber that is equipped with opposing automatic doors.
The turbine's particular setup and the automatic movement of the clusters in two different points during the operation, ensures that the pieces are totally and uniformly grit-blasted