* Use IGBT high power module and full-bridge inverter main circuit structure; the main engine with superior resistance to overloads and with ourstanding welding performance.
* Core control chip is the new-style current pulse width modulator; double loop feedback control; the more excellent static and dynamic characteristics; the smaller current drift.
* The digital table can preset welding current and the accuracy is ±1A.
* With the arc force adjustment function, and adapt to all grades of welding electrodes.
* The power factor is 0.98; the power consumption with no-load is less than 100W; it can save above 50% energy more than ordinary welding machines.
* Short-current protection function and the special standby operating circuit; it will not damage the welding machine's life while no-load, and the whole welding machine's life is one time longer than similar products.
* Suitable for coal mine workings.