Pierce a workpiece – Hypertherm Powermax30 XP Service Manual User Manual

Page 51

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Powermax30 XP Service Manual 808150 Revision 1

51

4 – Operation

Pierce a workpiece

If the metal is thinner than 6 mm (1/4 inch), use piercing to cut an interior feature. Piercing shortens the life of the
consumables.

The type of pierce to perform depends on the thickness of the metal. Hypertherm recommends:

Straight pierce – For cutting metal that is thinner than 3 mm (1/8 inch).

Rolling pierce – For cutting metal that is 3 mm (1/8 inch) or thicker.

1. Attach the ground clamp to the workpiece.

2. Straight pierce: Hold the torch perpendicular (90°) to the workpiece.

Rolling pierce: Hold the torch at an approximate 30° angle to the workpiece with the torch tip within 1.5 mm
(1/16 inch) of it before firing the torch.

3. Straight pierce: Press the torch trigger to start the arc.

Rolling pierce: Press the torch trigger to start the arc while still at an angle to the workpiece, then slowly rotate the
torch to the perpendicular (90°) position.

4. Hold the torch in place while continuing to press the trigger. When sparks exit from the bottom of the workpiece, the

arc has pierced the metal.

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