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The Tweco 1140-1248 (Model WS14AH-364) is a premium contact tip designed for welders who demand precision and durability. Part of the trusted WeldSkill line, this contact tip is specifically engineered to accommodate 3/64-inch (1.2 mm) welding wire. This wire size is particularly common in aluminum MIG welding, where the softness of the wire requires a tip with specific internal geometry to prevent shaving and feeding issues. The "AH" designation and the specific bore sizing ensure that the wire feeds smoothly while maintaining the tight electrical contact necessary for a stable, hot arc.
Constructed from a robust copper alloy, these contact tips excel at thermal conductivity. In the harsh environment of the welding arc, the contact tip is subjected to extreme heat. Inferior tips can soften and deform, leading to "keyholing" (where the exit hole becomes oval-shaped), which destroys arc directionality. Tweco's manufacturing process ensures that the WS14AH-364 retains its shape and hardness longer, providing a consistent center point for the wire. This is critical for automated or semi-automated processes where bead placement must be exact. The standard 1/4"-28 UNF thread ensures a universal fit with Tweco 52 and 54 series gas diffusers, making it a drop-in replacement for standard 14-series tips.
Supplied in a pack of 25, this SKU is tailored for industrial environments where uptime is money. Frequent tip changes are a reality of MIG welding, especially when working with aluminum or at high amperages. By stocking the 25-pack, you reduce administrative overhead and ensure that your welding operators always have the necessary consumables at their station. These tips are compatible with a wide array of MIG guns, including the classic Tweco Spray Master and the WeldSkill gun series. When your application calls for 3/64" wire, trust genuine Tweco consumables to deliver the performance your projects require.
| Additional Information |
|---|
| Brand:Tweco |
| Item:Contact Tip |
| Wire Size:3/64" |
| Packaging Description:25 in a pack |
| Series:WeldSkill 14 Series |
| Material:Copper Alloy |
| Thread Size:1/4"-28 UNF |
| Bore Diameter:0.047" (1.2 mm) |
| Product Type:MIG Welding Contact Tip |
