18844 - ESAB PT-31 Plasma Torch Heat Shield Replacement Cup

Maximize Your PT-31 Torch Performance

If you are running a plasma cutter equipped with a PT-31 torch, you know that the front-end parts take a beating. The ESAB 18844 Heat Shield is your first line of defense against the extreme conditions of plasma cutting. This shield cup sits at the very tip of your torch, surrounding the nozzle and electrode. Its job is twofold: it protects those delicate inner parts from the splash-back of molten metal (dross) and heat, and it helps shape the flow of air around the arc. When your heat shield is cracked, clogged, or worn out, you'll notice your cuts getting sloppy, your consumables burning out faster, and your arc wandering off target.

Replacing your heat shield is one of the easiest and most effective ways to restore your machine's cutting power. The ESAB 18844 is built to handle the heat, made from durable materials that resist cracking under thermal stress. A fresh shield ensures that the cooling air flows exactly where it's supposed to, keeping your nozzle cool and your arc tight. This means cleaner cuts with less dross to grind off later, and fewer trips to the supply cabinet for new electrodes. Whether you are working on automotive body panels, HVAC ducting, or general metal fabrication, a healthy torch tip is the secret to professional-looking results.

Don't wait until your torch starts sputtering to check your consumables. Inspect your heat shield regularly for cracks, chips, or heavy spatter buildup that can't be cleaned off. If you see daylight through a crack or if the threads are stripped, swap it out with a new ESAB 18844. It screws on by hand in seconds, getting you back to cutting metal faster. Keep a few of these in your toolbox so you never get stuck in the middle of a project with a busted torch.