... Arc Start 4.AC Bias/AC Balance adjust 4IN1 Multi-process Machine TC-205AC/DC Features:1) IGBT inverter system,Soft ... /Plasma cutting.5) HF pilot arc start for plasma cutting process.6) HF Arc Start, Arc Force, Anti-Stick.7) Professional ... -flow/Retard Time0.1-15SDimension(LxWxH)517x230x451mmWeight23.5KG 4IN1 Multi-process Machine TC-205AC/DC