Tweco 1240-1580 Mig Welding Nozzle 1/2 Inch Bore

Product Description

The TWECO 1240-1580 is a thread-on MIG welding nozzle designed for use with Tweco Weldskill MIG guns. It features a 1/2 inch bore diameter and a 1/8 inch tip recess with coarse threading. The recessed tip geometry helps protect the contact tip from spatter and heat, extending tip life during continuous welding operations. This nozzle is installed and replaced by welding professionals and fabricators as part of routine gun maintenance to maintain weld quality and arc stability.

This nozzle fits Tweco Weldskill MIG gun setups and is suited for light to medium-duty MIG welding applications in fabrication shops, manufacturing environments, and maintenance welding scenarios. The coarse thread-on design allows for quick field replacement without specialized tooling, minimizing downtime between jobs.

Key Features

• 1/2 inch bore diameter for proper shielding gas coverage
• 1/8 inch tip recess with coarse threading protects contact tip from spatter
• Thread-on design enables fast, tool-free nozzle changes in the field
• Compatible with Tweco Weldskill MIG guns
• Sold individually (UOM: Each)

Compatibility

Designed for use with Tweco Weldskill MIG guns. Verify gun model and nozzle thread specification before ordering to confirm fitment.

Installation Notes

Installation and replacement should be performed by a qualified welder or welding equipment technician. Allow the MIG gun to cool completely and disconnect the welding machine from its power source before removing or installing the nozzle. Hand-tighten the thread-on nozzle securely to ensure a proper gas seal; do not overtighten, as this may damage the coarse threads. Inspect the nozzle and contact tip for spatter buildup regularly and replace as needed to maintain arc performance.

Technical Specifications

• Bore Diameter: 1/2 inch
• Tip Recess: 1/8 inch
• Thread Type: Coarse thread-on
• Length: 3.4 inches
• Width: 1.1 inches
• Height: 1.1 inches
• Weight: 0.15 pounds
• UOM: Each

Standard Information

• Brand: TWECO
• Manufacturer Part Number: 1240-1580