11601109 - Tweco 16S-564 Contact Tip 5/64" (25-Pack)

Technical Overview of Tweco 16S-564 Contact Tips

The Tweco 16S-564 (SKU: 1160-1109) is a standard-duty contact tip designed specifically for use with 5/64-inch (2.0mm) welding wire. Part of the widely utilized 16 Series, this consumable is engineered to fit heavy-duty Tweco MIG guns, including the Professional No. 5 and No. 6 series, as well as Spray Master 450 assemblies equipped with compatible gas diffusers (such as the 52, 52FN, or 54A). The tip features a robust 3/8"-24 UNF thread, ensuring a secure electrical and mechanical connection to the diffuser, which is critical for minimizing resistance and heat buildup during high-amperage welding cycles.

Manufactured from a premium copper alloy, the 16S-564 offers excellent thermal and electrical conductivity. The internal bore is precision-drilled to strict tolerances to accommodate 5/64" wire with minimal friction while maintaining sufficient contact area for efficient current transfer. This balance is essential for preventing micro-arcing inside the tip, which can lead to premature failure or irregular wire feeding. The "S" designation indicates a standard length profile, providing a known stick-out relationship relative to the nozzle, which assists operators in maintaining consistent arc characteristics.

This product is supplied in a package of 25 units, catering to industrial environments where consumable turnover is expected due to high-volume production. Regular replacement of contact tips is a standard maintenance procedure to ensure weld quality, and the 16 Series design is a proven standard in the fabrication industry for structural steel, heavy equipment manufacturing, and other sectors requiring large-diameter wire welding.