WARPP LGK-40, Инструкция по эксплуатации

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Introduction
The cutting machine applies the advanced technology of inversion. Its
principle is making the 50/60Hz line frequency inverted to high frequency
(more than 100 kHz) with the V-MOSFET high power binistor, and then
stepping down and rectifying to attain high power DC source through the
pulse width modulation (PWM) technology. Thus the weight and size of the
transformer is greatly decreased and the efficiency is improved up 30%. The
principle of high frequency oscillation (HFO) is applied in the arc striking
system and makes it easy to arcing. Furthermore, the gas pre-flow and
post-flow function is available. It is stable, reliable, portable, energy saving,
noiseless, fast cutting speed, smooth scarfing and free of burnishing.
The cutting machine can be widely used. It can cut stainless steel, low carbon
steel, copper and other non-ferrous metals. The conversion efficiency of the
whole machine is over 85%.