12401240 - Tweco 24-50 Heavy Duty MIG Nozzle - 1/2 Inch Bore - 2 Pack

Tweco 24-50 Heavy Duty MIG Nozzle (1240-1240)

The Tweco 1240-1240, commonly referred to as the 24-50 nozzle, is a staple consumable for professional fabricators using Tweco MIG gun systems. This package contains two heavy-duty slip-on nozzles designed to provide consistent gas shielding and robust performance in industrial environments. The "24" designation indicates compatibility with the standard Tweco 24 Series consumable line, while the "50" denotes a 1/2-inch (12.7mm) bore diameter, which is the industry standard for a wide range of wire sizes and amperage applications.

Engineered with a heavy-duty wall thickness, these nozzles are built to withstand the intense heat generated during high-amperage welding. The added mass of the copper alloy construction aids in rapid heat dissipation, preventing the nozzle from overheating and deforming during prolonged duty cycles. This structural integrity ensures that the nozzle maintains its shape and concentricity, which is critical for laminar gas flow and porosity-free welds.

The slip-on design of the 1240-1240 allows for efficient maintenance and changeovers. It is designed to friction-fit securely over the Tweco 34A series insulator, ensuring a tight seal that prevents gas leakage while remaining easy to remove for cleaning spatter or replacing contact tips. This nozzle is fully compatible with a broad spectrum of Tweco MIG guns, including the Classic No. 2, No. 3, and No. 4 air-cooled guns, as well as the Spray Master 250, 350, and 450 series. Whether you are running standard solid wire or flux-cored wires requiring gas shielding, this nozzle provides the reliability needed for continuous production.

Compatibility Reference:

• Tweco Classic Series: No. 2, No. 3, No. 4
• Tweco Spray Master Series: 250, 350, 450
• Requires 34A Series Insulator for proper fitment