A paint coating application device for applying a paint medium on metal elements, which comprises a container with the metal elements, an apparatus that supplies paint means intended to be applied on the metal elements, and a device that generates an alternating magnetic field that causes the metal elements to be heated, characterized in that the container is a non-metallic drum (110) having a chamber and an opening that allows access to the interior of the chamber for the elements of metal, which is capable of being closed by a movable cover fixed non-permanently with respect to the non-metallic drum (110), and a non-metallic drum housing (110), in relation to which the non-metallic drum (110) It is rotatably fixed around its axis, while the device that generates the alternating magnetic field that causes the heating of the metal elements, is a heat inductor setting (281) of an induction heater (280) that inductively heats the metal elements by means of the alternating magnetic field and which is located outside the non-metallic drum chamber (110), and therein, the painting means is supplied to the interior of the non-metallic drum chamber (110) using the supply apparatus of the painting medium, so that it is applied on the metal elements, and, within the non-metallic drum chamber (110), is apply a paint coating on the metal elements and the metal elements are heated, and, within the non-metallic drum chamber (110), if necessary, the elements are cooled.
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