Abstract: A magnetizing device, including an electric circuit composed of one or more branches arranged in series or in parallel, joined by nodes, so as to form multipolar magnetic geometries, powered directly or by means of a transformer by a capacitor-discharge magnetizer. Differently from the prior art, which provides for a single winding composed of a series of many turns wound specifically to form even more than one pole, the present invention combines multiple connections in series and in parallel which are localized, so as to minimize the leakage inductance of the system. The windings can therefore have even a low number of turns or even a single machine-made turn.