The varb is a fully automated variant of the vstw-rbi-rba for pipe bends with a maximum dimension of 200 mm (8") in diameter. Depending on the requirement the prefabricated half shells can be placed manually or automatically by a robot into the tools. The weld operation is fully automatic and has consistent quality. The varb is best suited for applications with a high degree of automation and high production runs which need to be produced in a cost-efficient manner. The varb requires a separate clamping and holding tool for each pipe bend diameter. No more than 10 minutes are normally needed for retooling, including time for changing of material and adjustment of parameters.