Following advice on this forum I recently changed the Swirl Ring for a different part number
My machine uses a machine torch and the Hypertherm manual recommends a 220327 swirl ring with finecut consumables.
I used it like this for over a year before changing to a 120925 swirl ring as recommended.
The difference in cut quality and consumable life is amazing!
The cut quality was OK before but I used to have to clean parts up afterwards.
With the different swirl ring fitted the cut quality is now good enough so I don't have to clean up the parts!
The consumable life has also improved by at least 3 times!
The only downside of using the 120925 swirl ring is that it uses about 3 times as much compressed air, my 200 litre 5.5hp three phase compressor is definitely earning its keep!
Andy