PLASMA TORCH ELECTRODE FOR HYPERTHERM POWERMAX 30 XP – 420120
A pack of 5 genuine Hypertherm plasma torch electrodes for the Duramax torch as used with the Powermax 30XP plasma cutter.
This electrode, part number 420120 is one of the most commonly changed parts when using a plasma torch. The electrode provides power to the plasma arc. An insert at the tip of the electrode is made from a material with a very high melting point, such as Hafnium. As the electrode wears, the insert will slowly erode away, forming a small hole in the electrode tip.
WHEN TO REPLACE: Hypertherm recommend changing the electrode once the pit in the tip reaches approx 1mm in depth. Failure to replace an electrode can cause a blowout which will damage both the electrode and nozzle. If you need to slow down the cutting speed, are experiencing green discolouration of the arc or the arc is misfiring it is time to change the electrode. Hypertherms video guide on electrode lifespans, can be found here.
The 420120 electrode is for use between 15 and 30A for the following processes:
- Drag cutting
- Fine feature cutting