21447 - ESAB PT-20 / PT-21AMX 50A Plasma Shield Cup

Keep Your PT-20 Torch Cutting Like New

If you are running an ESAB plasma cutter with a PT-20 or PT-21AMX torch, the 21447 Shield Cup is the part you need to keep your cuts clean and your torch safe. This 50-amp shield cup is the outer shell that protects the business end of your torch. It takes the brunt of the heat and sparks so your more expensive internal parts don't have to. When you are out in the shop or on a job site, the last thing you need is a wandering arc or a nozzle that burns out halfway through a sheet because of a cracked or clogged shield cup.

This genuine ESAB part is built tough. It handles the heat of 50-amp cutting without warping or melting under normal conditions. It screws on easily and fits perfectly, ensuring that the shielding gas flows exactly where it needs to go. This gas flow is what blows the molten metal away and keeps your cut lines straight. If you notice your cuts are starting to look bevelled or you are getting a lot of dross buildup, check your shield cup. If the tip is burned away or the hole is no longer perfectly round, it's time to swap it out for a fresh 21447.

Don't risk your torch head with cheap knock-offs that might cross-thread or not insulate properly. The 21447 Shield Cup provides the electrical insulation you need to prevent shorting out against the metal plate. Whether you are doing HVAC work, automotive repair, or general fabrication, keeping a few of these spares in your toolbox ensures you are never stuck waiting for parts when you should be cutting metal.