21481 - ESAB SwirlJet SJ-3A Plasma Nozzle for PT-31 Torch

Restore Your Cut Quality with the SJ-3A Orifice

If you are running an ESAB machine with a PT-31 torch, you know that the quality of your cut depends entirely on the condition of your consumables. The ESAB 21481 SwirlJet SJ-3A Orifice is the direct replacement nozzle you need when your arc starts to sputter or your cuts become beveled and messy. Over time, the intense heat and high-velocity gas of plasma cutting erode the orifice hole, turning it from a perfect circle into an oval. Once that happens, your arc loses focus, and you start seeing excessive dross and slanted edges.

Swapping in a fresh 21481 orifice brings your torch back to life. This isn't just a piece of copper; it's part of ESAB's SwirlJet design which spins the air to keep the arc tight and straight. This means you get cleaner cuts with less cleanup work afterward. Whether you are cutting thin gauge sheet metal for HVAC work or doing auto body repairs, a fresh nozzle ensures you aren't fighting the machine to get a straight line.

We recommend checking your orifice every time you change your electrode. If the hole looks damaged, burnt, or out of round, it's time to replace it. Keeping a few of these SJ-3A orifices in your toolbox ensures you never have to stop a job halfway through because of poor cut performance. Stick with genuine ESAB parts to protect your torch head and ensure the threads and seating surfaces match perfectly every time.