Package Price:
$27.39/pack of 1Usually ships within 3-5 business days
The Tweco 1400-1134 (Model 35-40-20) is a premium standard conduit liner designed to facilitate the smooth transfer of welding wire from the feeder to the contact tip. Engineered specifically for 0.035-inch to 0.045-inch (0.9mm - 1.2mm) welding wires, this liner is a critical component for maintaining arc stability and preventing feed issues in industrial MIG welding applications. The conduit is manufactured from high-grade, zinc-plated spring steel, which provides an optimal balance of flexibility and rigidity while offering resistance to corrosion and minimizing friction against the welding wire.
With a generous length of 20 feet (6.1 meters), this liner is suitable for use with extended-length MIG gun cable assemblies or can be easily trimmed to fit standard 10, 12, or 15-foot guns. It is part of the Tweco 35 Series, making it directly compatible with Tweco No. 3 and No. 4 air-cooled MIG guns, as well as the popular Spray Master series (350A and 450A). The precise internal diameter is calibrated to support the wire without excessive drag, ensuring that the drive rolls do not slip and the wire does not buckle inside the cable.
Proper liner maintenance is essential for high-quality welds. A worn or kinked liner is a leading cause of erratic arcs and birdnesting. The Tweco 35-40-20 is designed for easy replacement, featuring a standard stop that seats securely in the gun's rear adapter. Whether you are fabricating structural steel, performing automotive repairs, or working in heavy manufacturing, this genuine Tweco component ensures your equipment operates at peak efficiency. It is specifically recommended for solid mild steel and flux-cored wires; for aluminum applications, a polymer or nylon liner should be used instead.
| Additional Information |
|---|
| Brand:Tweco |
| Product Type:MIG Gun Liner, Conduit |
| Wire Diameter:0.035", 0.045" |
| Length:20 ft |
| Packaging Description:1 Per Ea |
| Material:Zinc Plated Spring Steel |
| Compatible Series:Tweco No. 3, Tweco No. 4, Spray Master |
| Part Number:35-40-20 |
| For Material Type:Steel, Mild Steel |
