basic characteristics: Folding arm portable flat plate spot welding special machine use mechinary arm principle. design of multi-machine arm elbow activities can use mechinary automatic moving or manually moving. make sure welding point predestine position accuracy. welding power can selected common AC pulse welding power, three-phase secondary rectifying welding power, MF inverter power. material configuration: 1. Folding arm portable flat plate spot welding machine can selected manually moving way, CNC mechinary automatic moving way. 2. Manually moving the way structure is simple.manually moving light,flexible. Production positioning simple. the adaption is very strong to complicated products. 3. Automatic moving way use encoding servo motor. match fine fishing qualified slide rack, ball screw and automatic checking system to finished automatic moving of electrode.fast reaction speed, high control precision. automatic equipment design use X’Y axis portable working plate. use PLC stored setting moving program. setting simple and convient. 4. Use double face single point welding way. down electrode whole flat plate design. adapt to flat plate surface products welding. it can guarantee products surface flat and welding point consistency. suitable industry: It is major used in sheet metal welding technology. it have good effect to computer box, control cabinet, office cupboard and automobile sheet metal.