It's suitable for the Heating of the pieces of medium/large diameters (40-120 mm) with low output rates (max 200 pieces/h) and automatic piece loading beginning from aligned bar magazine. The slide for the piece loading in the three coils translates in sequence from one to another coil: the introduction of a cold piece let go out the piece in temperature. It' s suitable for applications like forging of axle shafts and similar pieces.