Compactly built to welding without protective gas, the MMA | ARC welding devices to the strongest and lightest in their class. Integrated overheating protection and high performance cooling enable continuous access to the maximum performance. State-of-the-art IGBT technology ensures first-class efficiency with reduced power consumption. Most models have an IGBT double board, which keeps the welding current thermally stable with an increased switching frequency and thus enables significantly longer work cycles. An automatic voltage increase when starting the welding process ensures the best scouring results. The standard-based anti-stick function automatically drives down the welding current when the electrode sticks to the workpiece and prevents it from glowing. Optionally, the inverters can be expanded to a DC WIG welding machine by using a compatible lift-ty burner. The MMA | ARC welding is possible under almost all conditions and the waiver of protective gas and the low weight make the mobile use of the devices easier. The compact inverters are delivered with extensive accessories and of course in the usual steelworks quality with a 7 -year guarantee!