Product Overview Models covered: LGK-60S The LGK-60S is a dual-voltage air plasma cutting machine built around an advanced single-tube IGBT inverter. It delivers high efficiency in a lightweight package, automatically detecting whether it is connected to single-phase 220V or two-phase 380V mains power. Non-contact high-frequency pilot arc ignition makes it simple to start cuts on workpieces of varying thickness, while excellent arc stiffness produces clean, smooth cut edges