Adopt optimization design ideas, control is more simple and reliable.
Important component adopt import device.
IGBT inverter, high dynamic speed, stabilized arcs   .
Adopt thrust circuit to make welding electrode and workpiece is not easy adhesion.
With TIG function.
Small size , light weight, high efficiency.
ZX7-315ST              ZX7-400ST            ZX7-500ST
Power
3-phase AC(380V)50Hz
Rated input capacity (KVA)
14                             19                          27
Voltage of no load
59V                           60V                        75V
Input current
21A                           30A                        42A
Welding current
21A                           30A                         42A
Welding voltage
32V                            36V                         40V
Current Adjust Range
30-315A                  30-400A                 50-500A
Duty Cycle
35%                         35%                        60%              
Weight
26kg                         28kg                        32kg
Insulation
F                                F                              F
Dimensions             
560*300*500        560*300*500                560*300*500