OperatiOn
HPR400XD Auto Gas – 806160 4-33
The use of stall force sensing is not as accurate as ohmic contact sensing, so operators may need to optimize the stall
force setting and/or the cut height setting (or torch-to-work distance) to compensate for possible workpiece deflection.
That is, the stall force value should be set high enough to avoid false stall detection but not so high that the excess force
causes a deflection of the workpiece and inaccurate IHS operation. In this example, the cut height value can be adjusted
from the cut chart, while the stall force value can be adjusted from the THC setup parameters.
Refer to the instruction manuals for your Hypertherm CNC and THC systems for more details on setting the stall force
threshold or on disabling ohmic contact. Alternative CNCs and THC systems can also be set up for underwater cutting.
Cut charts
The underwater cut charts are listed by amperage with the other mild steel cut charts.
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