CDN80 Ac spot & projection welding machine changes 380V power supply into low-voltage high instantaneous power welding supply throug the welding transformer and further transmits this low voltage heave current hence-generates high temperature resistance heat at the connection part for pressurized fusion welding. 1.Strong Stressof CDN80 Ac spot & projection welding machine:We precisely make the transformer with the high magnetic conductivity silicon steel imported,therefore,the stress of the welder is 15% higher than of the same kind product. 2.Secondary Discharge of CDN80 Ac spot & projection welding machine:Double section discharge enables it with preheating,trimming or flashback treatment onto special materials,which solves defects like de-soldering and coldsoldered joint resulted in shunt current on multi-spot projection welding,especially,it also suits for welding of high-carbon steel and special sandwich metal sheet. 3.Safe Operation of CDN80 Ac spot & projection welding machine adopts 24V low voltage control and designed as strictly abide by relevant gulations in EEC CE safety standards. 4.Application Industry of CDN80 Ac spot & projection welding machine :metals products,hardware,lamps and lanterns,tableware and cookware, small home appliances and metal fittings,etc.