0366550887 - ESAB PSF Series Aluminum MIG Liner - 1.2mm Wire - 4.5m Length

Smooth Feeding for Perfect Aluminum Welds

If you have ever welded aluminum, you know the frustration of wire feeding problems. The wire is soft, it kinks easily, and if your liner isn't up to the task, you spend more time clearing bird-nests than you do laying beads. The ESAB PSF Aluminum Liner (0366550887) is designed to solve exactly these problems for welders using ESAB PSF series torches. This 4.5-meter liner is engineered specifically for 1.2mm aluminum wire, providing the low-friction path your wire needs to travel smoothly from the feeder to the contact tip.

Standard steel liners are great for steel wire, but they are a disaster for aluminum. The rough internal surface of a steel spiral liner shaves off micro-particles of aluminum, which quickly clog the liner and cause erratic feeding. This leads to an unstable arc, burn-backs, and frustrating downtime. This dedicated aluminum liner uses a specialized polymer material that is slick and smooth, allowing the soft aluminum wire to glide through with minimal resistance. This is crucial when you are pushing wire through a 15-foot (4.5m) cable, where every bit of friction counts against you.

Installing this liner is a straightforward upgrade that can immediately improve your welding experience. A smooth-feeding wire means a stable arc, consistent penetration, and better-looking welds. It also reduces the wear and tear on your drive rolls, as the feeder motor doesn't have to work as hard to push the wire. Whether you are working on boat hulls, aluminum trailers, or custom fabrication projects, having a fresh, correct-spec liner in your torch is one of the cheapest insurance policies for weld quality.

Don't let feeding issues ruin your day or your workpiece. This genuine ESAB replacement part is built to the exact tolerances required for PSF torches. It fits perfectly, seals correctly at the back end to prevent gas loss, and supports the wire all the way to the diffuser. Keep a spare in your toolbox so you are never caught off guard by a clogged or kinked liner in the middle of a job.