An arrangement includes a coil-winding-tool to guide a metallic conductor for the forming of a part of the single-layer-coil. The coil-winding-tool is mounted to rotate around a first axis of rotation for the forming of the part of the coil. A conductor-feeding-drum carries the metallic conductor and is designed to hand over the metallic-conductor to the coil-winding-tool for forming. The conductor-feeding-drum is carried by a fixture. The fixture is mounted to rotate around a second axis of rotation, to allow a rotation of the conductor-feeding-drum around the second axis too. The first axis of rotation of the coil-winding-tool is perpendicular to the second axis of rotation of the conductor-feeding-drum, to allow the execution of the winding by the rotation of the coil-winding-tool and by the rotation of the conductor-feeding-drum.