Tweco 1260-1130 Mig Nozzle 3/4 Inch Bore Self Insulated 2 Pack

Product Description

The TWECO 1260-1130 is a self-insulated copper MIG welding nozzle designed for use with Tweco No. 6 MIG guns rated up to 600 amps. It features a 3/4-inch bore diameter and measures 3.372 inches in length with a 1.187-inch outer diameter. The nozzle uses a 3-piece construction consisting of a housing cut and formed from 122 DHP copper alloy tubing, a nozzle insert machined from solid brass, and a G7 silicone nozzle insulator. The recessed contact tip relationship of 0.125 to 0.156 inches suits higher heat applications. The part number is rolled and stamped on the outer surface for quick field identification. Sold in a pack of 2.

This nozzle is intended for medium to heavy duty MIG welding applications drawing up to 600 amps. The recessed tip geometry is well suited for situations where longer electrical stick-out is needed or where the nozzle may contact the work piece, such as tack, spot, and stitch welding passes. The integrated G7 silicone insulator eliminates the need for a separate insulating component, reducing part count and simplifying front-end assembly. Welding professionals servicing industrial MIG setups will find the stamped part number useful for fast replacement identification in high-turnover consumable environments.

Key Features

• 3/4-inch bore diameter rated for MIG guns up to 600 amps
• 3-piece self-insulated design eliminates the need for a separate insulator
• Nozzle housing formed from 122 DHP copper alloy tubing for thermal conductivity and durability
• Nozzle insert machined from solid brass with internal threads matched to conductor tube OD
• G7 silicone nozzle insulator provides electrical isolation from the gas diffuser
• Part number rolled and stamped on outer surface for easy field identification
• Recessed tip relationship of 0.125 to 0.156 inches suited for high-heat and contact welding scenarios

Compatibility

Designed for use with Tweco No. 6 MIG guns and standard gas diffusers rated up to 600 amps.

Installation Notes

Installation and replacement of MIG gun nozzles should be performed by a qualified welder or welding equipment technician. De-energize the MIG gun and disconnect the welding cable before servicing front-end consumables. Thread the nozzle onto the conductor tube by hand until snug; avoid using tools that could damage the nozzle insulator or distort the copper housing. Follow the equipment manufacturer's service guidelines and applicable AWS or facility safety standards when working on live welding systems.

Technical Specifications

• Bore Diameter: 3/4 inch
• Nozzle Length: 3.372 inches
• Outer Diameter: 1.187 inches
• Maximum Amperage: 600 amps
• Tip Recess: 0.125 to 0.156 inches
• Housing Material: 122 DHP copper alloy
• Insert Material: Solid brass
• Insulator Material: G7 silicone
• Package Quantity: 2 per pack
• Weight: 0.45 pounds

Standard Information

• Brand: TWECO
• Manufacturer Part Number: 1260-1130