DXY (ZX7) series of mine IGBT Inverter DC welding machine, 
 Input voltage: AC 380V / 660V/1140V; 
 Features and uses: 
 1, high reliability: complete power protection, overload protection, automatic dynamic magnetic bias correction circuit, effectively preventing the main transformer saturation, anti-interference ability, unique soft-switching drive circuit reduces the switching losses and to ensure a reliable active IGBT power devices run. 2, high stability: the machine on the network can automatically compensate for voltage fluctuations and maintain hot and cold when the welding current state of stable welding current drift is less than 0.5%. 3, energy efficient: a high-power IGBT modules for inverter circuit, inverter frequency up to 30KHZ, high power factor greater than 95%, no-load power consumption less than 100W, comprehensive energy than traditional welder 40%. 4, process quality: with the arc welding current and reasoning capabilities of anti-adhesion, conducive to all-position welding, weld backing, weld appearance, control wounds no holes, slag. 5, high-capacity ratio: compact design, small size, light weight, easy to carry. 6, using a wide range: for welding of various grades, especially for important basic electrode welding of mild steel, medium carbon steel and low alloy steel components and common pressure vessel.