The welding heads have been developed to be incorporated in any type of machine. It allows welding wire or profile with an angle to the axis of the strip of 0 to 90 °. Moreover, it is not limited in depth edge bank thanks to its design gooseneck. It is cooled by water at the electrode gates and braids welding. It is equipped with a DC generator with a frequency of 1000hz with different mode of control and regulation, avai-lable and visible on a computer or pocket adjustment. It is equipped with two security checks, one for the control end in advance and the second electrode is a piece be-fore welding presence. There are kits that allow profiles to change the size or type of material to be welded. The pressurizing is carried out using a compression spring with a large stroke.