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Maintain the precision and efficiency of your MIG welding operations with the Tweco 1440-1140 Steel Liner. This premium-quality conduit is designed to fit 15-foot MIG gun cable assemblies and is optimized for the most common wire diameters used in industrial applications: 0.035" and 0.045". Compatible with industry-standard Tweco #3 and #4 guns, as well as Lincoln Magnum 300 and 400 amperage models, this liner is an indispensable spare part for professional welders.
The liner is the backbone of your wire feeding system. Even the best welding machine cannot compensate for a liner that is kinked, clogged with debris, or worn out. Symptoms of a bad liner include wire chatter, burn-back, and the wire sticking in the contact tip. By installing a new Tweco 1440-1140 liner, you eliminate these mechanical feed issues at the source. The smooth internal surface of the wound steel coil reduces friction, allowing the drive rolls to push the wire effortlessly to the weld pool.
This liner features a robust steel construction that resists crushing and kinking, common issues in rugged workshop environments. It comes ready to install for 15-foot guns but can easily be measured and trimmed for shorter assemblies if required. The liner includes the necessary insulation at the back end to prevent electrical shorting within the power pin. When installing, it is crucial to ensure the liner is cut to the correct length—too short, and you risk gas leakage or wire shaving; too long, and the gun may not assemble correctly. The 1440-1140 is manufactured to tight tolerances to ensure it seats perfectly in the gas diffuser, providing optimal gas coverage and arc transfer.
Invest in the longevity of your equipment and the quality of your welds with the Tweco 1440-1140 replacement liner.
| Additional Information |
|---|
| Brand:Tweco |
| Item:Liner |
| Length:15 ft |
| Wire Size:0.035" - 0.045" |
| Amperage:300 A, 400 A |
| Fits Which Model:N/A |
| Material:Steel |
| Compatible Brand/Model:Tweco #3, Tweco #4, Lincoln Magnum 300, Lincoln Magnum 400 |
| Part Number:1440-1140 |
| Wire Type:Solid, Flux-Cored |
| Packaging Description:1 per each |
