12641130 - Tweco 26-75 Thread-On MIG Nozzle | 3/4" Bore | 1264-1130

Technical Overview of the Tweco 26-75 MIG Nozzle

The Tweco 26-75 (SKU: 1264-1130) is a high-performance gas nozzle designed for heavy-duty industrial MIG welding applications. Engineered by Tweco, a leader in arc welding accessories, this nozzle belongs to the 26 Series of thread-on consumables. It features a substantial 3/4-inch (19.1 mm) bore orifice, which is specifically optimized for high-amperage procedures where a large volume of shielding gas is required to protect the weld pool from atmospheric contamination. The nozzle is constructed from a robust copper alloy, selected for its excellent thermal conductivity and resistance to spatter adhesion.

Mechanically, the 26-75 utilizes a coarse thread design to attach directly to the gas diffuser. This thread-on mechanism ensures that the nozzle remains concentrically aligned with the contact tip, promoting a stable arc and consistent gas flow. It is compatible with standard Tweco gas diffusers, specifically the 54A and 56A series. The internal geometry of the nozzle is designed to position the contact tip in a recessed location relative to the nozzle exit. This recess helps protect the contact tip from radiant heat and reduces the likelihood of the tip shorting against the workpiece during tight-access welding.

This nozzle is rated for use with air-cooled and water-cooled MIG guns found in the Tweco Spray Master and Professional series. Its heavy wall thickness allows it to withstand the intense heat generated during spray transfer modes and flux-cored arc welding (FCAW-G). The 1264-1130 is an essential consumable for fabricators requiring reliable performance and durability in demanding manufacturing environments.