Related to the concept of user devices and equipment, as well as to consider for hand welding and  Welding Electrode for different purposes, the selection and design of welding positioner, in addition to the freedom of the main transformer, but also consider increasing the auxiliary bit degrees of freedom. Large, such as Welding Rod, to increase lift freedom of movement, such as many of the United States, Germany this product.
 In addition, some of the weldment, weld simple distribution of a rotary degree of freedom can solve most of the weldment and weld ship welding, a small amount of the remaining non-important weld, though, can not be implemented ship fillet weld but implementation of the fillet weld. To simplify the cost of equipment, the process will consider the single degree of freedom or functional degradation of the welding machine, that is, a single rotary positioner. According to application requirements, can also increase the auxiliary degrees of freedom. For example, the lift and the tailstock mobile and so on. There are some position change bit machine applies to welders bit technology requirements, and some degrees of freedom of the welding machine and welding. There from the station design and stability considerations, two or more welding joint design, so there have been a variety of stations transform and modular multi-degree of freedom welding positioner products.