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Experience the difference a fresh liner makes with the Tweco 45H-764-15 MIG Gun Liner. For professional welders, the condition of the conduit liner is often the difference between a perfect bead and a frustrating day of troubleshooting. This specific liner (Part No. 1450-1143) is built for the heavy hitters—designed to handle substantial wire diameters of 1/16" and 5/64". Whether you are running flux-cored wire for outdoor structural work or solid wire for heavy plate fabrication, this liner provides the rigid support and smooth path your wire needs to travel 15 feet from the feeder to the puddle without interruption.
Tweco's "H" designation stands for Heavy Duty, and this liner lives up to the name. The spiral-wound steel construction is tough enough to withstand the twisting and bending of the MIG gun cable during daily use without collapsing. The zinc coating serves a dual purpose: it protects the steel liner from rust caused by shop humidity and provides a slick surface that minimizes drag on the welding wire. This reduction in drag puts less strain on your wire feeder motor and drive rolls, ensuring that the wire speed you set is the wire speed you get at the contact tip.
Installing the 45H-764-15 is straightforward. Simply remove the old liner, unroll the new one, and slide it into the gun cable assembly. Ensure the liner is fully seated before trimming any excess at the front end, following the specific instructions for your MIG gun model. A properly trimmed liner prevents gaps between the liner and the gas diffuser, which is a common cause of micro-arcing and wire shaving accumulation. Keep your welds clean and your arc steady by keeping a spare Tweco 1450-1143 liner in your toolbox.
| Additional Information |
|---|
| Brand:Tweco |
| Packaging Description:1 Per Ea |
| Series:45 Series, Heavy Duty (H) |
| Wire Diameter Capacity:1/16" (1.6mm), 5/64" (2.0mm) |
| Length:15 ft |
| Material:Zinc Plated Spring Wire |
| Part Number:45H-764-15 |
