What are the differences between invert DC hand arc welding machine ZX7-200T and ZX7-200?
ZX7-200T generally refers to the ZX7-200 shrink edition, that is, the internal Jerry built machine models, the actual output of less than 200A, only 160A or 140A, so the price is cheaper than ZX7-200!ZX7-200 general can reach 200A, but some black manufacturers also have the deficiency of power, shoddy!
There's no particular difference between this, ZX7-200T and ZX7-200 just say the names of each manufacturer, or the structure of the device is different.
ZX7200 machine output reactor, the output voltage of ZX7200T, there is no market for the reactance, small welding low prices so there are ZX7200T too horrible to look at, this machine is relatively higher price.Inverter type DC arc welding machine is an arc welding machine based on MOSFET field effect power tube as switching element. First of all, the frequency of the 50Hz input voltage is rectified and filtered into DC voltage, and then through the power electronic switch into high frequency (100KHz) AC voltage, the AC voltage into AC voltage for welding process required by the transformer, the rectifier filter into DC voltage welding. The output current is controlled and regulated by the pulse width modulation control (PWM) technique. As the switch power inverter technology is adopted, the weight and the volume of the welding machine are greatly decreased, the efficiency is improved, and the energy consumption is saved.Inverter type DC arc welding machine is widely used in welding stainless steel, alloy steel, carbon steel, low alloy steel, copper and other metal.
