Tweco 1250-1130 Mig Welding Nozzle 3/4 Inch Bore 25 Series

Product Description

The TWECO 1250-1130 is a 3-piece MIG welding nozzle built for the Weldskill 25 Series gun. It features a nozzle housing cut and formed from 122 DHP copper alloy tubing, a nozzle insert machined from solid brass with internal threads matched to the conductor tube, and a G7 silicone nozzle insulator that provides electrical insulation between the nozzle and the gas diffuser. The 3-piece tapered design does not require a separate insulator. Bore diameter is 3/4 inches. The part number is roll-stamped on the outside surface for quick identification in the field. Welders and weld shop technicians handling heavy-duty GMAW applications will find this nozzle a direct-fit replacement for 25 Series torches.

The TWECO 1250-1130 is designed for heavy-duty MIG welding environments handling continuous or high-cycle duty up to 500 amperes. It is suited to structural, fabrication, and industrial welding operations where heat and spatter resistance are critical. The nozzle is sold individually and is appropriate for use in both shop and field welding setups where the Weldskill 25 Series gun is the standard torch platform.

Key Features

• Nozzle housing formed from 122 DHP copper alloy tubing for high thermal and electrical conductivity
• Solid brass nozzle insert with machined internal threads matched to the conductor tube
• G7 silicone nozzle insulator provides electrical insulation without a separate insulator component
• Tapered 3-piece design eliminates need for an additional insulator
• Part number roll-stamped on exterior surface for quick identification
• Rated for heavy-duty welding up to 500 amperes

Compatibility

Designed as a direct-fit replacement nozzle for TWECO Weldskill 25 Series MIG welding guns.

Installation Notes

Installation is performed by qualified welders or weld equipment technicians. Disconnect and de-energize the welding power source before removing or installing any nozzle components. Allow the existing nozzle to cool completely before handling to avoid burns. Ensure the internal threads of the replacement insert are fully engaged with the conductor tube before resuming operation.

Technical Specifications

• Bore Diameter: 3/4 inches
• Maximum Amperage Rating: 500 amperes
• Nozzle Housing Material: 122 DHP copper alloy
• Nozzle Insert Material: Solid brass
• Insulator Material: G7 silicone
• Length: 3.8 inches
• Width: 1.1 inches
• Height: 1.1 inches
• Weight: 0.42 pounds
• Sold As: Each

Standard Information

• Brand: TWECO
• Manufacturer Part Number: 1250-1130