Tweco 1240-1414 Mig Nozzle 1/2 Inch Bore 1.75 Inch 450A

Product Description

The TWECO 1240-1414 is a coarse-threaded copper MIG welding nozzle engineered for standard gas diffuser applications in medium to heavy duty welding environments. Machined from solid 145 tellurium copper alloy bar stock, the nozzle delivers consistent dimensional stability and efficient heat dissipation at currents up to 450 amps. The two-piece design features a nozzle housing that threads onto a separate nozzle insulator. The bore measures 0.5 inches with an outer diameter of 1.07 inches and an overall length of 1.75 inches. The part number is roll-stamped on the outer surface for quick field identification. Sold in a pack of 2.

This nozzle is suited for medium to heavy duty MIG welding applications requiring a recessed contact tip relationship of 0.125 to 0.156 inches. That recess geometry is well matched to higher heat applications where longer electrical stick-out is needed, or in situations where the nozzle may contact the work piece, such as tack, spot, and stitch welding. The coarse thread mount mates with a standard gas diffuser. The nozzle housing and nozzle insulator are sold separately and must be ordered independently.

Key Features

• Machined from solid 145 tellurium copper alloy bar for dimensional stability and heat dissipation
• 0.5 inch bore, 1.75 inch length, 1.07 inch OD
• Recessed tip geometry (0.125 to 0.156 inch recess) for longer electrical stick-out and work piece contact situations
• Rated up to 450 amps for medium to heavy duty welding
• Coarse thread design for standard gas diffuser compatibility
• Part number roll-stamped on outer surface for easy identification
• Sold as 2 per pack

Compatibility

Designed for use with standard gas diffusers in MIG welding torch assemblies requiring a coarse-threaded copper nozzle. Nozzle housing and nozzle insulator are sold separately.

Installation Notes

Installation is performed by a qualified welder or welding equipment technician. Disconnect and de-energize the welding power source before servicing front-end consumables. Thread the nozzle housing onto the nozzle insulator by hand until seated; do not overtighten, as this can damage the insulator threads. Inspect the contact tip recess relationship after assembly to confirm proper stick-out for the intended welding process.

Technical Specifications

• Bore Size: 0.5 inches
• Nozzle Length: 1.75 inches
• Outer Diameter: 1.07 inches
• Contact Tip Recess: 0.125 to 0.156 inches
• Current Rating: 450 amps
• Thread Type: Coarse thread
• Material: 145 tellurium copper alloy
• Design: Two-piece (housing and insulator)
• Pack Quantity: 2 per pack
• Weight: 0.14 pounds

Standard Information

• Brand: TWECO
• Manufacturer Part Number: 1240-1414