Main data: Wire O.D range: 0.05� 1.2mm Armature O.D range: 20� 100mm Stack length: 10� 100mm Commutator bar number: random Commutator O.D range: 8� 70mm Air pressure: 5-7kg/ cm2 Welding power: 10-30kw Voltage: single phase 220v, 50/ 60Hz Total weight: 350kg