ماكينة لحام ديجيتال 3 كرته كهرباء DC MMA-500i INVERTER Welder – Durmiri Brand

Main transformer uses super micro-crystal magnetic material.
Using single tube IGBT, whose quality and price is better than mould IGBT.
Air passage is of designed by protecting against water, dust and wind erosion, increasing the stability of machine inner working.
The fan heat diffusion efficiency can be up to 100%, greatly increasing the duty cycle of welder.
When working under 40 degree environment, the duty cycle is not less than 55%.
The output efficiency can be up to 93%, the max. power factor can be up to 0.95.
Stable welding current in spite of input voltage fluctuation.
With arc force and hot arc starting function, also with VRD function.