This robot type with its 50 mm opening in the arm and wrist allows the arc welding dress package to be routed in the protective interior of the arm. This not only shields the dress package from mechanical influences, but also prevents undesirable whiplash motion during reorientation of the robot. Both torsion type dress packages and infinitely rotating arc welding dress packages are possible. A focused effort to minimize the amount of material used saves costly raw materials and helps to preserve the environment. Another benefit is that material costs are reduced.