Hypertherm Powermax65 Service Manual Rev.1 - Manual (Page 71)

Torch SeTup
powermax
65/85 Service Manual 3-23
Using the cut charts
The following sections provide cut charts for each set of mechanized consumables. 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) – 80% of the maximum speed ratings. These speeds result in the
greatest number of cut parts, but not necessarily the best possible cut quality.
Note: The arc voltage increases as the consumables wear and the voltage setting should be increased to
maintain the correct Torch-to-Work Distance.
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.
Note: Hypertherm collected the data under laboratory test conditions using new consumables.