11401113 - Tweco 14A-364 Aluminum Contact Tip 3/64 Inch (25 Pack)

Tweco 14A-364 Standard Contact Tip for Aluminum Wire

The Tweco 14A-364 is a specialized contact tip designed specifically for welding with 3/64" (1.2mm) aluminum wire. Part of the industry-standard 14 Series, these tips are engineered to address the unique challenges of feeding soft aluminum wire through a MIG gun. Unlike standard steel tips, the 14A-364 features a slightly oversized internal bore tolerance. This critical design element accommodates the higher rate of thermal expansion found in aluminum, ensuring smooth wire feeding and preventing the wire from binding or seizing inside the tip as it heats up.

These contact tips are compatible with a wide range of Tweco MIG guns, including the classic No. 2, No. 3, and No. 4 series, as well as the Spray Master and Mini-MIG product lines. They utilize the standard 1/4"-28 UNF thread for easy installation into standard gas diffusers (such as the 52 and 54 series). Manufactured from high-grade copper alloy, they provide excellent electrical conductivity, which is essential for maintaining a stable arc and producing high-quality aluminum welds.

Supplied in a convenient package of 25, these tips are an essential consumable for any fabrication shop working with aluminum. Regular replacement of contact tips is vital for maintaining weld quality, as worn tips can lead to micro-arcing, poor current transfer, and erratic wire feeding. By choosing the correct "A" style tip for your aluminum projects, you significantly reduce downtime caused by burn-backs and bird-nesting.

Key Compatibility:

• Tweco Professional No. 2, 3, & 4 Guns
• Tweco Spray Master Series
• Tweco Mini-MIG Guns
• Compatible with 52, 52-23, 52FN, and 54A gas diffusers