262705 - Miller Universal Teflon Liner Kit for Spoolmatic & XR Guns (5-Pack)

Miller Universal Teflon Liner Kit 262705: Precision Aluminum Feeding

The Miller 262705 Universal Teflon Liner Kit is a critical maintenance package designed specifically for fabricators utilizing Miller's advanced aluminum wire feeding systems. Aluminum welding presents unique challenges due to the softness of the wire, which lacks the column strength of steel and is prone to buckling or "birdnesting" if it encounters friction. This kit addresses those challenges by providing high-lubricity Teflon liners that significantly reduce drag within the gun neck. These liners are engineered to facilitate the smooth transfer of aluminum wire from the drive rolls to the contact tip, ensuring a stable arc and consistent weld bead profile.

Broad Compatibility and Versatility
Miller has designed this kit to be a universal solution for their most popular aluminum application tools. The liners are compatible with a wide range of equipment, including all Spoolmatic® 15A and 30A spool guns, as well as the entire line of XR™ pistol-grip and gooseneck style push-pull guns. The liners are sized to accommodate wire diameters ranging from 3/64 inch (1.2 mm) to 1/16 inch (1.6 mm), covering the vast majority of industrial aluminum welding applications. Each liner in the kit measures 14 inches in length, providing ample material to fit the neck assemblies of these various gun models.

Essential Installation Tool Included
One of the standout features of the 262705 kit is the inclusion of a specialized liner cutter. In aluminum welding, the interface between the liner and the contact tip or diffuser is a critical failure point. If a liner is cut with standard side cutters, the tube can be crushed or crimped, creating a restriction that shaves the wire. These shavings accumulate and eventually cause burn-backs or erratic feeding. The included cutter is designed to slice through the Teflon tubing cleanly and squarely, ensuring the liner retains its round shape and seats perfectly within the gun head. This attention to detail helps maximize the lifespan of your consumables and reduces downtime.

Maintenance for High Performance
This package contains five individual liners, allowing shops to maintain a ready stock of replacements. Regular liner replacement is a best practice in aluminum welding, as even small amounts of aluminum oxide buildup or dirt inside the liner can degrade performance. By utilizing genuine Miller parts, operators ensure that their equipment continues to operate at factory specifications, delivering the reliability and quality that professional welders demand.