LM3A-10 - Miller AccuLock MDX Liner .035-.045 10ft LM3A-10

Hassle-Free Liner Replacement for Smoother Welds

Every welder knows the frustration of a bad liner. The stuttering wire, the unpredictable arc, and the dreaded birdnest at the drive rolls can ruin your rhythm and your weld. The Miller AccuLock™ MDX™ MIG Gun Liner (LM3A-10) is designed to solve these headaches once and for all. If you are running .035" or .045" wire through a 10-foot MDX gun, this is the upgrade that will make your day easier. The genius of this liner is in how it installs. Forget about pulling the gun off the machine, laying it out straight on the floor, and trying to measure the new liner against the dirty, kinked old one. With the AccuLock system, you load the liner right from the front of the gun.

The installation process is practically foolproof. You lock the liner in place at the front, and then at the back of the gun, you simply trim it flush with the power pin cap. No measuring tape, no guessing, and no "close enough" cuts. If you trim it flush, it fits perfectly. This perfect fit means there are no gaps inside the gun for the wire to wander or snag. The result? The wire feeds smoothly from the machine to the puddle. You get a consistent, stable arc that goes exactly where you point it. This reduction in friction also means your drive rolls don't have to work as hard, reducing wear on your feeder.

By aligning the contact tip directly with the liner, Miller has eliminated the misalignment that causes so many burnbacks. You spend less time clearing jams and changing tips, and more time dropping dimes. Whether you are fabricating in the shop or doing repairs in the field, the reliability of the LM3A-10 liner gives you the confidence that your equipment won't let you down in the middle of a bead. It’s a small part that makes a massive difference in how your torch feels and performs.