14501115 - Tweco 45-116-25 Steel MIG Liner for 1/16 Wire - 25ft

Reliable Wire Feeding with Tweco 1450-1115 Conduit

The Tweco 1450-1115 (Model 45-116-25) is a premium standard conduit liner designed to facilitate the smooth transfer of welding wire through your MIG gun cable assembly. Engineered for industrial environments, this liner is specifically sized for 1/16-inch (1.6mm) wire diameters, making it an essential component for heavy fabrication tasks where larger wire sizes are standard. The liner measures 25 feet in length, providing ample reach for extended gun assemblies used in large-scale structural work or manufacturing cells.

Manufactured from high-grade zinc-plated spring steel, this conduit offers an excellent balance of flexibility and rigidity. The zinc coating serves a dual purpose: it protects the steel from corrosion during storage and use, and it provides a low-friction surface that allows the welding wire to slide effortlessly through the cable. This reduction in drag is critical for maintaining a stable arc, as it minimizes wire chatter and speed fluctuations that can lead to weld defects. The wound steel construction is robust enough to resist crushing and kinking, ensuring a long service life even in rugged shop conditions.

This liner is part of the Tweco 45 Series, making it compatible with a wide range of Tweco MIG guns, including the popular Spray Master and Professional series (typically 400A and 500A models). Proper maintenance of your MIG gun includes regular inspection and replacement of the conduit. A worn or clogged liner is a leading cause of feeding issues; replacing it with a genuine Tweco 1450-1115 ensures your equipment operates at peak efficiency. Whether running solid mild steel wire or flux-cored wires, this standard steel liner delivers the consistency professional welders demand.

Installation is straightforward, with a machined brass stop that seats firmly into the gun's rear adapter block. The liner can be trimmed to the exact length required for your specific cable setup, ensuring a perfect fit and optimal gas seal at the diffuser end. Trust Tweco's legacy of quality to keep your welding operations running smoothly.