AC arc welding machine mine hand 

 Introduction 
 Mine 380V or 660V AC welding machine can be used single-phase 50Hz AC for welding operations. The machine is small, light weight, easy to move, the current adjustment range, steep drop characteristics of a good, weld spatter, arc stability characteristics. Very suitable for mining, coal mine or on the ground 380V, 660V power supply where operations. Mine portable welding machine dual voltage AC for inclined, belt and other liquidity Lane maintenance. 

 Mining rail welding technology exchange parameter table 
 Welding Type AKH-315 C / D AKH-400 C / D AKH-500 C / D 
 Technical parameters 
 AC input voltage (V) C-type 380 (± 10 ℅) D-type 380 ~ 660 (± 10 ℅) 
 Rated output current (A) 315 400 500 
 Current Range (A) 50-315 50-400 50-500 
 Rated no-load voltage (V) 75 75 75 
 Rated duty cycle (%) 60 60 60 
 Thermal protection (℃) 65 65 65 
 Duty cycle (min) 10 10 10 
 Efficiency (%) 90 90 90 
 Power factor (%) 85-92 85-9285-92 
 Insulation class FFF 
 Protection class IP21 IP21 IP21 enclosure 
 Forced air cooling forced air cooling forced air cooling 
 Dimensions (mm) 450 * 280 * 290 450 * 280 * 290 480 * 314 * 330 
 Weight (kg) 23 23 28