M1429 - Miller Teflon Liner for .047-.062 Aluminum Wire

Miller M1429 Teflon Liner Overview

The Miller M1429 is a specialized Teflon liner designed to facilitate the smooth feeding of aluminum welding wire. Engineered for wire diameters ranging from .047 inches (3/64") to .062 inches (1/16"), this liner is an essential component for fabricators working with soft alloys. Aluminum wire lacks the column strength of steel, making it prone to buckling (bird-nesting) and shaving when pushed through standard steel coiled liners. The M1429 utilizes a high-grade Teflon material that provides a slick, low-friction path, significantly reducing drag and ensuring consistent wire feed speeds.

This liner is particularly suited for applications requiring precision and reliability. By minimizing friction, it reduces the strain on the wire feeder motor and drive rolls, prolonging the life of your equipment. The liner is compatible with specific Miller MIG guns, potentially including tight access (Tight Acs) configurations where smooth wire pathing is critical. Proper installation of a Teflon liner is key to achieving high-quality aluminum welds, as it prevents the contamination that can occur if aluminum wire rubs against a steel liner.

Industrial MROs and welding professionals rely on genuine Miller consumables like the M1429 to maintain productivity and weld quality. Whether you are welding thin gauge aluminum sheet or heavier structural components, ensuring your MIG gun is equipped with the correct liner for the wire type and size is the first step towards a defect-free weld. This product is sold individually.