| A21 PRB and PRC Tube Welding Tools The tools are based on the tried and tested clamp-on principle, which offers a user-friendly and time saving method of working. For easier handling the tools are small, flexible and light. The operating ranges of the tools are 17-170 mm, external ISO tube diameter. The PRB tools are available as water-cooled or air-cooled. They offer benefits in a number of application areas for welding stainless tubes in the food industry, process industry as well as heavy-duty engineering such as the energy and power industries. The PRC tools are water-cooled. They are available in two configurations with arc length control or with arc length control and weave control of the arc. A tool equipped with arc length control can be quickly fitted with a weave unit. The wire setting on the PRB and PRC tools facilitates controlled wire feed at the correct angle to the weld pool. The tool jaws are manufactured from stainless steel to avoid contamination to sensitive materials. With the PRB tool it is possible to position the wire angle and electrode as in the case of fillet welding tube to a flange. In this case, an angular support is mounted between the electrode block arm and the wire holder. The PRB tools can be used together with ESAB's TIG power source Aristo™ MechTig C2002i or power source Aristo™ MechTig 4000i combined with control box Aristo™ MechControl 2 or 4. The PRC tools can be used together with ESAB's TIG power source Aristo™ MechTig 4000i combined with control box Aristo™ MechControl 4. |