Panasonic 500A welidng Torches: 1.welding current 500A at 60% duty circle 2.welding wires from 1.2mm to 1.6mm 3.air cooled Panasonic 350A welidng Torches: 1.welding current 500A at 60% duty circle 2.welding wires from 1.0mm to 1.2mm 3.air cooled Panasonic 180A welidng Torches: 1.welding current 200A at 60% duty circle 2.welding wires from 0.8mm to 1.0mm 3.air cooled Panasonic15AK welidng Torches: 1.welding current15AK at 60% duty circle 2.welding wires from 0.8mm to 1.0mm 3.air cooled