Three sand version. Possibility of sanding with aluminum oxide and/or glass microspheres from 25 μm to 250 μm. When placing the order, the operator can select the modules to be installed according to his needs among three different sizes (25/50 μm nozzle d. 0,5 - 50/100 μm nozzle d. 0,8 - 110/250 μm nozzle d. 1,3). Preset for connecting the outside aspirator. Pedal control.