420 AMP Welding Machine MMA IGBT Inverter Welder Arc Force With Clamp Mask Posted on October 30, 2023 by admin High frequency inverter, features quick arcing and less welding splash. 1 x Inverter Welding Machine. For Welding rod:? 3.2mm. 1 x Welding clamp. AdvancedIGBT technology, ensures a stable and large power welding work.