The Tweco 1440-1146, also identified by the model number WS44-116-25, is a specialized conduit liner engineered for the WeldSkill series of MIG guns. This component is critical for maintaining the integrity of the wire feed system, particularly in applications requiring an extended reach. The liner is manufactured to a length of 25 feet (approximately 7.6 meters), making it suitable for long cable assemblies where minimizing friction is paramount to preventing wire feed issues such as chatter or birdnesting.
Technically, this liner belongs to the 44 Series, a standard classification within the Tweco ecosystem designed to balance flexibility with column strength. It is specifically wound to accommodate wire diameters ranging from 1/16 inch (1.6mm) to 5/64 inch (2.0mm). The internal diameter is precision-controlled to support these heavier gauge wires without allowing excessive play, which can lead to erratic arc characteristics. The construction utilizes zinc-plated music wire, a high-carbon steel alloy known for its tensile strength and resistance to deformation. The zinc plating serves a dual purpose: it provides corrosion resistance during storage and use, and it offers a smoother surface finish compared to bare steel, thereby reducing the coefficient of friction against the welding wire.
In the context of MIG welding maintenance, the conduit is often the most overlooked yet vital variable in the wire feeding equation. Over time, the internal surface of the liner accumulates copper flaking, drawing lubricants, and shop dust, which increases drag. For a 25-foot assembly, this drag is amplified significantly compared to standard 10 or 15-foot guns. The WS44-116-25 is designed to mitigate these effects through its spiral-wound geometry, which allows for consistent wire support even when the cable is flexed. Proper installation requires precise trimming to ensure the liner seats correctly against the gas diffuser and the drive rolls, maintaining a continuous path for the electrode.
| Additional Information |
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| Brand:Tweco |
| Item:Liner |
| Length:25 ft |
| Wire Size:1/16" |
| Series:WeldSkill |
| Part Number:WS44-116-25 |
| Material:Zinc Plated Music Wire |
| Wire Diameter Range:1/16" (1.6mm) - 5/64" (2.0mm) |
| Packaging Description:pack of 1 |
