12401202 - Tweco 24A-75 Slip-On MIG Nozzle, 3/4" Bore, Heavy Duty

Genuine Tweco 1240-1202 (24A-75) MIG Nozzle

Optimize your MIG gun's performance with the Tweco 24A-75 Slip-On Nozzle. Identified by stock number 1240-1202, this nozzle is a staple in the heavy fabrication industry, known for its reliability and ease of use. It belongs to the Tweco 24 Series, which utilizes a slip-on connection method rather than threads. This design choice eliminates the risk of seized threads caused by thermal expansion and spatter accumulation, a common issue with threaded nozzles in high-heat environments. The nozzle simply slides over the gas diffuser (compatible with part numbers 54A and HD54A), held securely in place by a machined internal ring or spring tension, ensuring concentric gas flow.

Superior Shielding for High-Amp Welds

The defining feature of the 24A-75 is its large 0.750-inch (3/4") bore orifice. While 1/2" or 5/8" nozzles are sufficient for short-circuit MIG welding, they often restrict gas flow too much for spray transfer or globular transfer modes. The 3/4" opening ensures a low-velocity, high-volume stream of shielding gas, which is critical for preventing atmospheric contamination in the weld pool. This makes the 24A-75 the nozzle of choice for welding thicker plates, structural beams, and applications requiring high deposition rates.

Rugged Construction

Manufactured from a specialized copper alloy, the Tweco 24A-75 is built to withstand the radiant heat generated by arcs up to 450+ amps. The heavy-duty wall thickness helps dissipate heat rapidly, keeping the front end consumables cooler and extending the life of your contact tips and diffusers. The nozzle also features a high-temperature fiberglass/silicone insulator that prevents the nozzle from becoming electrically live, protecting the operator and the workpiece from accidental arcing. Trust genuine Tweco consumables to maintain the integrity and safety of your welding operations.

• Stock Number: 1240-1202
• Model: 24A-75 (HD24L-75)
• Connection: Slip-On (Requires 54A Diffuser)
• Application: Heavy Duty / High Amperage