Tweco 1240-1121 Mig Nozzle 5/8 Inch Bore Recessed Tip

Product Description

The TWECO 1240-1121 is a Short Stop copper MIG welding nozzle designed for use with Tweco No. 4 MIG guns rated up to 450 amps. Machined from 122 DHP copper alloy tubing, this nozzle measures 3.48 inches in length with a 5/8-inch (0.625-inch) bore and a 0.875-inch outer diameter. The recessed contact tip relationship of 0.125 to 0.156 inches makes it well suited for higher heat applications that require longer electrical stick-out or situations where the nozzle may contact the work piece. The part number is rolled and stamped on the outer surface for quick field identification. Sold in packs of 2.

This nozzle is rated for medium to heavy duty MIG welding applications up to 450 amps. It slides over the standard nozzle insulator and is engineered for use with standard gas diffusers on Tweco No. 4 MIG gun platforms. Recessed tip configurations are appropriate for tack welding, spot welding, stitch welding, and other processes where the nozzle is likely to contact the work piece or where longer electrical stick-out is operationally required.

Key Features

• 122 DHP copper alloy construction for reliable conductivity and heat resistance
• 5/8-inch (0.625-inch) bore with 0.875-inch outer diameter
• Recessed tip recess of 0.125 to 0.156 inches for high-heat and contact applications
• Part number rolled and stamped on outer surface for easy identification
• Compatible with standard nozzle insulator Part No. 34A (Stock No. 1340-1100)
• Rated for welding applications up to 450 amps

Compatibility

Designed for use with Tweco No. 4 MIG guns rated up to 450 amps and standard gas diffusers. Slides over standard nozzle insulator Part No. 34A (Stock No. 1340-1100).

Installation Notes

Installation should be performed by a qualified welding technician or trained professional. Shut down and de-energize the MIG gun before removing or installing nozzle components. Ensure the nozzle is fully seated over the nozzle insulator before resuming welding operations. Follow applicable AWS and facility safety guidelines when servicing front-end MIG gun components.