Plasma cutting machine with different working gases can cut a variety of oxygen cutting difficult to cut metal, especially for non-ferrous metals (stainless steel, carbon steel, aluminum, copper, titanium, nickel) cutting effect is better; Its main advantage is that when cutting metals with small thickness, plasma cutting speed is fast, especially when cutting ordinary carbon steel sheets, the speed can reach 5 to 6 times that of the oxygen cutting method, the cutting surface is smooth, the heat deformation is small, and there is almost no heat affected zone.
The plasma arc voltage height controller uses the constant current characteristics of some plasma power supplies. In the cutting process, the cutting current is always equal to the set current, and the cutting arc voltage changes with the height of the cutting torch and the plate at a fixed speed. When the height of the cutting torch and the plate increases, the arc voltage rises; When the height between the cutting torch and the steel plate decreases, the arc voltage decreases. PTHC – Ⅱ arc voltage height controller controls the distance between the cutting torch and the plate by detecting the change of arc voltage and controlling the lifting motor of the cutting torch, so as to keep the arc voltage and the cutting torch height unchanged.
The excellent high-frequency arc starting control technology and the separation structure between arc starter and power supply of plasma cutting machine greatly reduce the interference of high-frequency to NC system.
● The gas controller is separated from the power supply, with shorter gas path, stable air pressure and better cutting quality.
● High load persistence rate, reducing the consumption of plasma cutting machine accessories.
● It has the function of gas pressure detection and indication.
● It has the function of gas test, which is convenient to adjust the air pressure.
● It has the automatic protection function of overheating, overvoltage, undervoltage and phase loss.