DN2-40X Portable Spot Welding Machine: 1.reasonable design,good performance 2.compact construction 3.portable movement DN2-40X Portable Spot Welding Machine: Frequency (Hz) 50/60 Fixed input capacity (Kva) 40 Secondary unload voltage ( V ) 6Max. short circle current ( KA) 19Type of welding arm X typeDistance between the arms (mm) 168-328Max. thickness of electrodes ( mm ) 2400Max. Welding ...