Bench dual micro-welder for the contemporary welding of the resistance on the glow plug. The platinum resistance is positioned over the mobile electrode and the plug unit on the fixed electrode. At start, the electrode brings the resistance into the plug and welds the positive, while the other mobile electrode welds the other terminal of the resistance (negative) to the plug unit. Double electronic control to adjust independently the 2 welding operations. Power 2x2KVA- feeding voltage 230 V.