Tweco 1230-1017 Mig Welding Nozzle 450A 3.219 Inch 2 Pack

Product Description

The TWECO 1230-1017 is a Weldskill 23 Series MIG welding nozzle built for medium to heavy duty welding applications up to 450 amps. The nozzle measures 3.219 inches in length with a 0.062 inch bore and 0.875 inch outer diameter. It uses a 9/16 inch-18 UNC-2B thread to mount directly onto the conductor tube assembly. Construction follows a 3-piece design: a nozzle housing cut and formed from copper alloy tubing, a nozzle insert machined from solid brass, and a nozzle insulator made from silicone. The part number is roll-stamped on the outer surface for fast field identification. Sold as a 2-pack.

This nozzle is designed for use with standard gas diffusers in MIG welding setups where reliable shielding gas coverage and tip protection are required. The silicone insulator provides electrical isolation from the gas diffuser without requiring a separate insulator component. The recess contact tip relationship of 0.125 to 0.156 inches suits demanding weld cycles in fabrication, structural, and manufacturing environments. Licensed welders and certified welding technicians working with wire-feed MIG guns in medium to heavy industrial applications are the primary users.

Key Features

• 3-piece design: copper alloy housing, solid brass insert, silicone insulator — no additional insulator needed
• Nozzle insert machined from solid brass with internal threads matched to conductor tube OD threads
• Nozzle housing cut and formed from copper alloy tubing for heat resistance and conductivity
• Silicone nozzle insulator provides electrical insulation from the gas diffuser
• Part number roll-stamped on outer surface for easy identification during service
• Sold as 2 per pack

Compatibility

Designed for use with standard gas diffusers on Tweco Weldskill 23 Series MIG welding guns rated for medium to heavy duty applications up to 450 amps.

Installation Notes

Installation is performed by qualified welding technicians. Disconnect and de-energize the welding gun before removing or installing nozzle components. Thread the nozzle onto the conductor tube assembly by hand until snug, then verify the insulator is properly seated to maintain electrical isolation from the gas diffuser. Inspect the nozzle insert threads and insulator for wear or spatter buildup before reinstalling.

Technical Specifications

• Series: Weldskill 23
• Maximum Amperage: 450 amps
• Bore Size: 0.062 inches
• Nozzle Length: 3.219 inches
• Outer Diameter: 0.875 inches
• Thread Size: 9/16 inch-18 UNC-2B
• Recess Contact Tip Relationship: 0.125 to 0.156 inches
• Housing Material: Copper alloy
• Insert Material: Solid brass
• Insulator Material: Silicone
• Pack Quantity: 2 per pack
• Weight: 0.19 pounds

Standard Information

• Brand: TWECO
• Manufacturer Part Number: 1230-1017