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Welding aluminum can be a headache if you don't have the right setup. If you've ever struggled with wire burnback, erratic arcs, or the dreaded "birdnest" at your wire feeder, your contact tip might be the culprit. The Tweco Style 14AH-364 Contact Tip is built specifically to solve these problems. Designed for 3/64" (1.2mm) aluminum wire, this tip features a slightly larger and smoother internal bore than standard steel tips. This allows the aluminum wire—which expands more than steel when hot—to slide through easily without sticking or dragging.
This isn't just a standard tip drilled out; it's a Heavy Duty version rated for up to 400 amps. This means it has thicker walls to handle the intense heat of high-amperage spray transfer welding often used with aluminum. The copper alloy construction ensures the tip stays cooler for longer, preventing the wire from melting to the tip itself. Whether you are building boat hulls, repairing trailers, or fabricating custom aluminum parts, these tips help keep your arc smooth and your welds clean.
Installation is simple and familiar. These tips screw directly into standard Tweco #4 and #5 style MIG guns using the common 52 or 52FN gas diffusers. They are a direct replacement for the 14AH-364 (Part # 1140-1213). Don't let equipment issues slow down your production. By switching to a contact tip designed specifically for the soft nature of aluminum wire, you ensure better electrical contact and smoother wire delivery, letting you focus on laying down the perfect bead.
| Additional Information |
|---|
| Brand:Tweco Style |
| Item:Contact Tip |
| Wire Size:3/64" |
| Wire Type:Aluminum |
| Amperage:400 A |
| Packaging Description:pack of 25 |
| Material:Copper Alloy |
| Compatibility:Tweco No. 4 MIG Guns, Tweco No. 5 MIG Guns, Gas Diffusers 52, Gas Diffusers 52FN |
| Application:Aluminum Welding |
| Part Reference:1140-1213 |
