Product Overview Built around a second-generation medium frequency inverter (MFDC) power source, this 160kVA sink seam welding machine produces a fast rising, highly stable DC welding current with minimal spatter. It consumes roughly 30 percent less energy than conventional AC welding machines while delivering the airtight seams required for stainless steel kitchen sinks. Key Features Medium Frequency Inverter Power Source: Second-generation MFDC technology gives fast DC