... with XPTHC-300, user no need to worry about torch head crashing.C, Freeze Auto Height Control on ... Corner SignalXPTHC-300 would freeze Auto Mode on receiving corner signal from CNC system to ... than Set Arc Voltage over 30V, THC Auto Control Mode freezes to avoid torch head diving, until ... laser cutting;2009 started to co-design THC with Messer China, and developed XPTHC-200; Koike ...