Hypertherm Duramax Hyamp Robotic Torch - Manual (Page 45)

Duramax/Duramax Hyamp Robotic Torches Service Manual 807460 45
2 – Torch Setup
Using the cut charts
The cut charts for each set of mechanized consumables can be found in the Torch Setup section of the Operator Manual
that shipped with the system. The manuals also can be downloaded from Hypertherm’s website ( www.hypertherm.com )
using the “Downloads library” link. A consumable diagram with part numbers precedes each set of charts. For each
consumable type, there are Metric and English charts for mild steel, stainless steel, and aluminum.
Each chart contains the following information:
 Material Thickness – Thickness of the workpiece (metal plate being cut).
 Torch-to-Work Distance – For shielded consumables, the distance between the shield and the workpiece during
cutting. For unshielded consumables, the distance between the nozzle and the workpiece during cutting.
 Initial Pierce Height – Distance between the shield (shielded) or the nozzle (unshielded) and the workpiece when
the torch is triggered, prior to descending to the cut height.
 Pierce Delay Time – Length of time the triggered torch remains stationary at the pierce height before the torch
starts the cutting motion.
 Best Quality Settings (cut speed and voltage) – Settings that provide the starting point for finding the best cut
quality (best angle, least dross, best cut-surface finish). Adjust the speed for your application and table to obtain the
desired result.
 Production Settings (cut speed and voltage) – 70% to 80% of the maximum speed ratings. These speeds result in
the greatest number of cut parts, but not necessarily the best possible cut quality.

The arc voltage increases as the consumables wear, so the voltage setting may need to
be increased to maintain the correct torch-to-work distance. Some CNCs monitor the arc
voltage and adjust the torch lifter automatically.
Each cut chart lists hot and cold air flow rates.
 Hot air flow rate – Plasma is on, the system is operating at running current, and the system is in a steady state at
the default system pressure (automatic mode).
 Cold air flow rate – Plasma is off and the system is in a steady state with air flowing through the torch at the default
system pressure.

Hypertherm collected the cut chart data under laboratory test conditions using new
consumables.