CF-2.20.09.604 - 3/64" Aluminum U-Groove Drive Roll Kit

Smooth Feeding for Flawless Aluminum Welds

If you have ever struggled with aluminum MIG welding, you know that feeding problems are the number one headache. The wire kinks, it burns back, or it turns into a birdnest of tangled metal right at the drive rolls. Often, the culprit isn't your machine or your technique—it's using the wrong drive rolls. The ComParc Drive Roll Kit for 3/64" aluminum wire is designed to solve these exact problems. Unlike steel wire, which is hard and forgiving, aluminum is soft. If you try to push it with the V-groove rolls that came with your welder, you will squash the wire flat. This flattened wire drags inside your liner, causing friction that ruins your feed consistency and makes your arc sputter.

The U-Groove Difference

This kit features rolls with a smooth, U-shaped groove. Think of it like a pulley system that gently grips the wire on the sides without biting into it. This design allows the rolls to push the wire forward effectively without changing its shape. Because the wire stays round, it slides easily through your liner and makes perfect electrical contact at the tip. This means you get a smoother, hissing arc and better puddle control, whether you are welding thin gauge sheet metal or heavy aluminum plate. It also prevents the formation of metal shavings that can clog up your gun, saving you from constantly having to blow out your liner.

Setup Tips for Success

Installing the ComParc U-groove kit is the first step to better aluminum welding, but proper setup is key. When you install these rolls, remember that aluminum needs much less tension than steel. You want to tighten the tensioner just enough so the wire feeds smoothly. A good test is to feed the wire against a non-conductive surface (like a block of wood); the rolls should slip rather than birdnest if the wire is blocked. If they keep pushing and kink the wire, you have too much tension. Pair these rolls with a Teflon or plastic liner and the right size contact tip, and you will be amazed at how much easier aluminum welding becomes. Keep this kit in your toolbox so you are always ready to tackle aluminum jobs with confidence.