Extrusion allows even complex shapes of aluminum profiles to be manufactured. It is what makes this process so powerful. When manufacturing aluminum profiles, a billet is heated to the forming temperature of approx. 500 °C is pushed through a mold with an extrusion die. A recipient encloses the billet. The outer shape of the extruded profile is determined by the mold.
Mandrels are shaped in various ways making the production of hollow spaces and multi-chamber profiles possible as well. The extruded profiles of lengths up to 55 meters are then stretched, sawed to manufacturing lengths, and then generally aged artificially in order to increase strength and stability.