14401012 - Tweco 44N-116-15 Nylon MIG Liner for 1/16 Aluminum Wire - 15ft

Product Overview

The Tweco 1440-1012, also identified by the model number 44N-116-15, is a specialized conduit liner designed for the precise feeding of aluminum welding wire. As part of the Tweco 44 Series of consumables, this liner is engineered to fit compatible Tweco MIG guns, providing a reliable path for wire delivery from the feeder to the contact tip. The liner measures 15 feet in length, making it suitable for standard torch cable assemblies used in industrial and fabrication environments.

Technical Specifications

This conduit is manufactured from high-quality nylon, a material chosen specifically for its low coefficient of friction and non-contaminating properties. Unlike steel liners, which can shave soft aluminum wire and cause clogging or erratic feeding, the nylon surface ensures smooth travel. The internal diameter is calibrated to accommodate 1/16-inch (1.6mm) wire, a common size for structural aluminum welding. The external dimensions and end fittings are designed to mate perfectly with Tweco gun back-ends and diffuser assemblies that accept 44-series liners.

Compatibility and Application

The 44N-116-15 is intended strictly for use with soft wires, primarily aluminum and aluminum alloys (such as 4043 or 5356). It is not recommended for use with hard steel wires, which can rapidly abrade the nylon material. This liner is a critical component for welders operating Tweco MIG guns in aluminum fabrication, ensuring that the wire remains intact and free of defects caused by drag or metal-on-metal contact within the cable. Proper installation requires trimming the liner to the exact length of the gun cable to prevent gaps that could lead to wire buckling.