12441026 - Tweco 24A-62 MIG Nozzle, 15.5mm (5/8") Bore, Tapered - Pack of 2

Technical Overview of the Tweco 1244-1026 MIG Nozzle

The Tweco 1244-1026, also referenced by the industry-standard part number 24A-62, is a high-performance MIG welding nozzle designed for professional fabrication environments. This component is engineered to fit Tweco No. 3 and No. 4 air-cooled MIG guns, providing a critical interface for shielding gas distribution. The nozzle features a 15.5mm (approximately 0.61 inch or 5/8 inch) bore orifice, which strikes an optimal balance between gas coverage and gas velocity, suitable for a wide range of amperage settings and wire diameters.

Constructed from a durable copper alloy, the 1244-1026 is built to withstand the intense thermal cycling inherent in semi-automatic arc welding. The material properties of the copper alloy facilitate rapid heat dissipation, preventing overheating of the front-end consumables and reducing the likelihood of spatter bridging. The nozzle utilizes an adjustable slip-on connection mechanism, designed to mate with the 34A series (Stock No. 1340-1125) nozzle insulator. This design allows the operator to adjust the nozzle position relative to the contact tip, accommodating different stick-out requirements and welding preferences.

The defining characteristic of this model is its tapered geometry. Unlike standard cylindrical nozzles, the tapered profile reduces the external diameter at the nozzle tip, thereby increasing the operator's line of sight to the arc zone. This is particularly advantageous when welding in restricted spaces or when precise bead placement is required. This SKU is supplied as a package of two nozzles, providing necessary redundancy for continuous production lines and minimizing downtime associated with consumable replacement.