We just added a water table on our cutter that has a Hypertherm 1650 and have noticed shorter consumable life in both nozzles and electrodes. The torch has never been dunked but it does sit over the water at night, is this a possible spot for water contamination? What are the general thoughts on air plasma over water? An interesting coincidence is I purchased a bunch of "surplus" OE electrodes on ebay and they arrived stuffed in a box and pretty dinged, I have to check each one for nicks before installing
Thanks for any input.
Unless water is actually getting inside the torch...then it should have no effect to consumable life. The "Surplus" electrodes.....if they truly are Hypertherm consumables they will have a Hypertherm part number and date code....and on some of them, a system designation or amperage rating laser etched on them. Consumables are manufacturered to some pretty tight tolerances....nicks and scratches will affect operation and life.