14501113 - Tweco 45-116-15 MIG Conduit Liner 1/16 15ft

Tweco 1450-1113 (45-116-15) Technical Overview

The Tweco 1450-1113 is a standard 45 Series Conduit Liner (Model 45-116-15) manufactured to meet the rigorous demands of industrial MIG welding. This component is a critical element of the MIG gun assembly, specifically sized for 1/16-inch (1.6mm) diameter wires. Proper liner selection is paramount for achieving stable electrical conductivity and arc performance; a liner that is too large can cause the wire to wander, while one that is too tight increases drag and wear on the drive rolls.

Constructed from high-grade zinc-plated spring steel, this wound conduit offers superior durability compared to bare steel liners. The winding process creates a flexible yet crush-resistant tube that protects the welding wire as it traverses the cable. The zinc coating serves a dual purpose: it protects the steel liner from oxidation during storage and use, and it provides a smoother surface finish that lowers friction coefficients. This reduction in drag is essential when pushing 1/16" wire through a 15-foot cable, ensuring the feed motor does not overwork.

This liner is supplied at a length of 15 feet and is designed to be trimmed to fit during installation. It is compatible with Tweco MIG guns configured for 45 Series consumables, such as the Tweco Professional No. 3, 4, and 5, as well as the Spray Master 350 and 450 series. Regular maintenance schedules should include inspecting the liner for kinks or buildup of wire shavings and lubricant, which can impede performance. Replacing the liner with the Tweco 45-116-15 ensures your equipment continues to operate at factory specifications.