The N-DODO Series automatic resistance welding machine are newly improved products (80 cans/min Series) produced by Shantou Light Industry Mechanics (Group) Company. As for this kind of machine, a lot of advance technology is applied, such as human-machineinterface control and programmable controller. The holding control of the complete appliance uses a sort of digitalization input. The newly accessory inversion welding power supply, can carry out an electric source compensate control for any location of the welding line. And a series of frequency control is adopted to replace the mechanical stepless transmission. Products produced by the company are of high quality, with related devices, advanced and reliable. Besides, this kind of can is of good accommodation; This kind of machine uses a system of DODO-S welding, therefore, it increases the welding speed and adapts well to the special can manufacturing need of spray can and height can. It is a special facility for spray and empty can