Tweco 1260-1261 Mig Welding Nozzle Heavy Duty 3/4 Inch Bore

Product Description

The TWECO 1260-1261 is a heavy duty MIG welding nozzle built for the HD26 Series torch, rated for use in applications up to 600 amperes. It features a 3-piece construction with a 3/4 inch bore and uses air cooling. The nozzle housing is cut-formed from red brass alloy 230, the insert is machined from solid brass and crimped in place to slide over the gas diffuser spring, and the insulator is molded from G7 silicone material to provide electrical isolation. The part number is roll-stamped on the exterior for fast identification in the field. This nozzle is sold individually.

This nozzle is intended for heavy duty MIG welding operations where high amperage output demands robust consumable components. It is suited for industrial welding environments running continuous or high-cycle applications up to 600 amps. The 3-piece design integrates the insulator directly into the assembly, eliminating the need for a separate insulator component during installation or replacement. Welding professionals working with HD26 Series torches will find this a direct-fit replacement consumable.

Key Features

• Rated up to 600 amps for heavy duty MIG welding applications
• 3/4 inch bore diameter for proper shielding gas flow and wire clearance
• Nozzle housing cut-formed from red brass alloy 230 for thermal durability
• Solid brass insert machined and crimped to engage the gas diffuser spring
• G7 silicone insulator provides electrical isolation without a separate insulator part
• Part number roll-stamped on exterior for quick identification

Compatibility

Designed as a replacement nozzle for TWECO HD26 Series MIG welding torches rated up to 600 amperes.

Installation Notes

Installation and replacement of MIG welding nozzles is performed by qualified welding technicians or maintenance personnel. Always disconnect power and allow the torch to cool completely before handling consumables. The nozzle slides over the gas diffuser spring — ensure the diffuser is clean and free of spatter before seating the replacement nozzle. Follow all applicable AWS and facility safety guidelines when servicing torch consumables.

Technical Specifications

• Bore Diameter: 3/4 inch
• Amperage Rating: 600 amps
• Cooling Method: Air
• Length: 3.3 inches
• Width: 1.2 inches
• Weight: 0.42 pounds
• Nozzle Housing Material: Red brass alloy 230
• Nozzle Insert Material: Solid brass
• Insulator Material: G7 silicone
• Sold As: Each

Standard Information

• Brand: TWECO
• Manufacturer Part Number: 1260-1261