12601736 - Tweco PMW24-50 PulseMaster Water-Cooled MIG Nozzle, 1/2" Bore (2-Pack)

Technical Overview of the Tweco PMW24-50 Nozzle

The Tweco 1260-1736 (Model PMW24-50) is a specialized gas nozzle designed exclusively for the Tweco PulseMaster series of water-cooled MIG guns. Engineered to withstand the rigorous thermal demands of pulsed GMAW applications, this nozzle features a 1/2-inch (12.7 mm) bore orifice, which provides a balanced shielding gas envelope suitable for a wide range of wire diameters and transfer modes. The nozzle is manufactured from a high-grade copper alloy, selected for its exceptional thermal conductivity and resistance to mechanical wear.

In water-cooled systems, the interface between the nozzle and the front-end consumables is critical for heat dissipation. The PMW24-50 is designed to seat securely onto the PulseMaster head assembly, ensuring efficient thermal transfer away from the arc zone. This cooling capability is essential for preventing the overheating of the contact tip and nozzle insulation, thereby extending the service life of the entire front-end consumable stack. The 1/2-inch bore size is particularly versatile, offering adequate access to tighter joints while maintaining sufficient gas flow to prevent porosity in the weld pool.

This product is supplied in a package of two, allowing for immediate replacement and inventory maintenance. The precision machining of the nozzle's interior surface promotes laminar gas flow and minimizes the accumulation of spatter, reducing the frequency of cleaning intervals. For industrial environments utilizing high-amperage pulsed MIG welding, the PMW24-50 ensures consistent performance and reliability.