Friction Stir Welding (FSW) has been proven an excellent method for joining of non-ferrous alloys in several industrial areas. The introduction of industrial robots in FSW has extended the possibilities, now also including complex 3-dimesional structures to be joined. There is however issues regarding the robot system’s performance as well as how to really benefit from the extended flexibility features. This paper presents how the FSW robot system ROSIOTM is intended to be used to fully explore its potential usage in production and laboratory applications. This include presenting the system’s performance in a set of case studies, but also defining in which way this system may be a subject for increased productivity in FSW.