The robot should support multiple processes such as MIG/MAG (GMAW), TIG (GTAW), or Plasma welding depending on the material thickness and required bead quality. Ensure the robot controller is compatible with digital communication protocols (like DeviceNet, Profinet, or EtherNet/IP) to integrate seamlessly with high-end power sources from brands like Miller, Lincoln Electric, or Fronius. For heavy-duty applications, verify if the system supports water-cooled torches to prevent overheating during continuous duty cycles.