12641133 - Tweco WC2675R Heavy Duty MIG Nozzle 3/4 Inch Bore Recessed

Technical Overview of the Tweco WC2675R MIG Nozzle

The Tweco WC2675R (SKU: 1264-1133) is a high-performance gas nozzle designed for heavy-duty industrial MIG welding applications. Part of the WC series, this nozzle is engineered to withstand the thermal stresses associated with high-amperage welding arcs, including spray transfer modes and flux-cored arc welding (FCAW-G). The unit features a substantial 0.750-inch (19.1 mm) bore orifice, which provides a broad umbrella of shielding gas, essential for maintaining weld pool purity and preventing atmospheric contamination in aggressive welding environments.

Constructed from a robust copper alloy, the WC2675R offers excellent thermal conductivity, rapidly dissipating heat away from the front end of the MIG gun. This thermal management extends the service life of both the nozzle and the internal consumables, such as the contact tip and gas diffuser. The 'R' in the model designation indicates a Recessed tip relationship. In this configuration, the contact tip sits back inside the nozzle, providing a physical standoff that reduces the risk of the tip shorting out against the base metal during tight maneuvering. This geometry is particularly beneficial for high-heat applications where radiant heat can damage exposed tips.

This nozzle is compatible with specific Tweco MIG gun platforms that utilize the WC series consumable system. It is manufactured to precise tolerances to ensure a secure fit over the nozzle insulator, minimizing gas leaks and ensuring laminar flow. Industrial fabricators rely on the WC2675R for its durability and its ability to maintain consistent shielding gas coverage during long weld runs.