24A-37-SS - Tweco 24A-37SS Slip-On MIG Nozzle, 3/8" Bore, Recessed Tip, 2-Pack

Technical Overview of the Tweco 24A-37SS Nozzle

The Tweco 24A-37SS (Part No. 1240-1101) is a high-performance MIG welding nozzle designed for professional industrial applications. Engineered to support medium to heavy-duty welding cycles, this component is rated for use with amperages up to 450 A. It belongs to the widely utilized 24A Series, ensuring broad compatibility with Tweco-style MIG guns that utilize the standard 34A (Stock No. 1340-1100) nozzle insulator. The nozzle features a slip-on connection mechanism, allowing for rapid removal and replacement without the need for threading, which significantly reduces downtime during maintenance intervals.

Material composition is a critical factor in the performance of the 24A-37SS. The housing is cut and formed from 122 DHP (Deoxidized High Phosphorus) copper alloy tubing. This specific alloy is selected for its exceptional thermal conductivity and resistance to annealing at high temperatures, ensuring the nozzle maintains its structural integrity even during prolonged welding operations. The 3/8-inch (9.5 mm) bore diameter provides a focused gas column, ideal for applications requiring precise shielding gas coverage or access to tighter joints. The "SS" designation and design indicate a recessed tip configuration, where the contact tip sits deeper within the nozzle bore. This geometry is advantageous for reducing the accumulation of spatter on the contact tip and preventing electrical shorts when the nozzle is rested against the workpiece.

Identification and inventory management are simplified thanks to the roll-stamped part number located on the outside surface of the nozzle. This permanent marking remains legible even after use in harsh industrial environments. Supplied in a convenient pack of two, the Tweco 24A-37SS offers a balance of durability, precision, and ease of use for professional fabricators requiring reliable gas shielding solutions.