The foundry has at its disposal a continuous-duty drum shotblasting machine CT-4-45 in line with the casting shakeout plant, capable of operating at the same speed as the casting plant. Each of its four 55kW powerful turbines feeds 600kg/min of shots at a rate of 85 m/s, guaranteeing an extremely high quality surface finish both externally and inside the complex castings. The rotation speed of the internal conveyor belt can be regulated according to the volume of the castings that pass through the machine. Our operators, posted at the sand blaster delivery point, receive perfectly sandblasted castings ready for shipment and finishing and painting operations