The AUTOOL M518 welding machine applies the most advanced inversion technology.
The principle of inversion is to transform the power frequency of 50Hz/ 60Hz into direct current and invert it into high frequency through high-power device IGBT, then perform voltage-drop and
commutation with the output high-power D.C power supply via Pulse Width Modulation (PWM).
Since the switch power inversion technology is adopted, the weight and volume decrease greatly while the conversion efficiency increase of more than 30%.
The machine is self-shielded flux cored welding machine, which is equipped with unique electronic reactor circuit, which can precisely control the short-circuiting transfer and mixed transfer resulted in better performance than other machines. Compared with silicon controlled welding machine and tapped welding, our products have the following advantages: stable wire feed rate, portable, energy-saving, electromagnetic noise free.
Power supply??V?? 1 phases 120V??15%
No-load voltage(V) 55
Rated input current(A) 20
Output current adjustment
range(A) 30 – 90
Output voltage(V) 15.5 – 18.5
Duty cycle 25%
Power factor >0.7
Type of the wire feeder Internal
Welding-wire diameter (mm) 0.8
Insulation grade F
Protection grade IP21S
Weight without wire roller(kg) 5.5
(L*W*H mm) 360*135*240