Hypertherm HPR800XD Auto Gas Rev.2 - Manual (Page 134)

OperatiOn
4-28 HPR800XD Auto Gas – 806500
wARNINg
the “rooster tail” of molten material and hot gases produced by this moving pierce technique can
result in injury, fire, and damage to equipment if appropriate precautions are not taken.
you may be required to use guards to protect operators and to prevent the molten metal from reaching
any flammable materials.
Requirements
• This stainless steel moving pierce technique is specific to the HPR400XD and HPR800XD systems.
• Using this technique with the HPR400XD requires an automatic gas console.
• The “pierce complete” (or “pierce control”) signal must be turned off for these processes when the shield gas
preflow pressure is lower than the shield gas cutflow pressure.
• This moving pierce technique requires a torch height control (THC) system that is controllable through
the CNC.
Moving pierce cut charts
The moving pierce cut charts are listed by amperage with the other stainless steel cut charts. They show the
consumable parts, the segment lengths and speeds, and the torch, motion, and plasma current settings that are used to
perform the moving pierce for each process.
Once the pierce is complete, cutting can continue with the standard cut chart settings for the 400 A or 800 A stainless
steel process as defined in the Operation section of your HPR400XD Instruction Manual or HPR800XD Instruction
Manual.