229891 - Miller 229891 XR-Aluma-Pro Nylon Liner 25ft (.035-.045)

Optimize Your Aluminum Feeding with Miller 229891 Liner

Experience smoother wire delivery and reduced downtime with the Miller 229891 Replacement Liner, specifically engineered for XR-Aluma-Pro Series MIG guns. Aluminum welding presents unique challenges, primarily due to the softness of the wire which makes it susceptible to buckling and shaving inside the gun cable. This 25-foot conduit liner addresses these issues with a specialized nylon construction that drastically reduces friction, allowing the wire to travel freely from the feeder to the contact tip.

The 229891 liner is rated for aluminum wire sizes between 0.035" and 0.045". Using the correct liner size is vital; a liner that is too large can cause the wire to snake, leading to an unstable arc, while a liner that is too tight increases drag on the drive rolls. This product offers the precise internal geometry required for optimal support of the wire column over a 25-foot distance. It is the standard replacement part for Miller's push-pull systems, which are the industry standard for feeding aluminum over long distances.

Welders know that feed problems are the number one cause of frustration in MIG welding. Symptoms like bird-nesting at the feeder, stuttering arcs, or irregular bead profiles are often traced back to a worn or dirty liner. The nylon material of the Miller 229891 not only facilitates smooth feeding but also resists the buildup of contaminants better than steel coil liners when used with aluminum. It is a non-metallic conduit, ensuring there is no contamination of the aluminum wire with iron particles, which is critical for code-quality welds.

Don't let a compromised liner stall your project. This genuine Miller part restores your gun's performance to like-new condition. It is compatible with XR-Aluma-Pro guns often paired with Millermatic and AlumaFeed systems. For professional results and reliable operation in demanding environments, choose the Miller 229891 liner from Welders Supply. Ensure your equipment is ready for any aluminum fabrication task with high-quality consumables that deliver consistent results.