Abstract: Apparatus for the planetary feeding of electrode wire having means for adjusting the pushing force exerted on the electrode wire by electromagnetic means. Opposed canted rolls are mounted for rotation about their axes upon a first housing part which is rotatable about the axis of an elongated electrode wire which passes between and is fed by the canted rolls. A second housing part, which is disposed coaxially of the first housing part, bears means such as a cam or a cone which interacts with roll adjusting means mounted on the first housing part so as to adjust the force with which the canted rolls engage the electrode wire in accordance with relative motion between the two housing parts. The second housing part is driven for rotation about its axis.