Going through electrodes like crazy!

[Oldsarge]

Things are working good on the table now but I seem to be using electrodes way too fast. I'm following the settings in the book. But after 3 to 5 patterns or so the center of the electrode is gone, recessed back inside the tip.. The funny thing is that the nozzle seems to be okay. The cut quality is pretty good, but I think the electrode should be lasting much longer. I do notice a bit of angularity on the cut, and more than I think should be on 11 gauge.

Hypertherm 1250 with a Duramax machine torch.

Using 45 amp fine cut consumables
Very dry clean air.

Any thoughts or suggestions are greatly appreciated.

Oldsarge

[BrianMick]

Can you post a picture? of the tip.....they will always wear inside a little right away as the halfnium melts.
Brian

[jimcolt]

Pictures will help diagnose...also details regarding how many starts, approximate average cut duration (seconds), what power level, etc.

The things that cause rapid electrode life:

1. Cut gas (air) pressure is too high.
2. Moisture, oil, or particulates in air supply.
3. Using incorrect consumables for power level and air pressure settings. example: 60 amps through a 40 amp nozzle will cause the electrode (and nozzle) to wear rapidly.
4. Aftermarket consumables. Note that there are some chinese copies of Hypertherm consumables....same packaging, laser marking, part numbers, etc. If you bought "genuine parts" real cheap...be suspicious.


Jim Colt Hypertherm