
If you are running an HW-27 TIG torch, you know it's a beast designed for heavy-duty work. But even the toughest torch relies on delicate internal components to deliver that perfect stack of dimes. The ESAB 57N58 Gas Lens Screen is the unsung hero of your shielding gas setup. Located inside your gas lens assembly, this 250-mesh stainless steel screen is responsible for smoothing out the flow of argon before it hits your workpiece. When your gas flow is smooth and laminar, you get better coverage, less turbulence, and a much lower chance of porosity ruining your weld.
Over time, these screens get beat up. They trap fumes, get clogged with soot, or warp from the extreme heat of high-amperage welding. When that happens, your gas coverage gets choppy, and you might start seeing erratic arc behavior or dirty puddles. Swapping out the screen is a quick and cheap fix that restores your torch's performance instantly. This pack comes with three screens, so you can keep a couple of spares in your toolbox. Don't let a clogged dollar-part ruin a thousand-dollar weldment.
Installation is straightforward for anyone familiar with the HW-27 assembly. Simply disassemble the front end, remove the old, clogged screen from the gas lens body, and seat the new 57N58 mesh in its place. The 250 mesh count is fine enough to create a super-stable gas column, allowing you to stick your tungsten out further when you need to reach into tight corners without losing coverage. Keep your welds clean and your arc stable with these essential replacements.
| Additional Information |
|---|
| Brand:ESAB |
| Packaging Description:3 Per Ea |
| Torch Compatibility:HW-27, Heliarc 27 |
| Part Type:Gas Lens Screen, Diffuser Mesh |
| Mesh Size:250 Mesh |
| Material:Stainless Steel Mesh |