Tweco 1220-1301 Mig Welding Nozzle 3/8 in Bore 250 Amp

Product Description

The TWECO 1220-1301 is a tapered short stop copper MIG welding nozzle designed for use with Tweco No. 2 MIG guns rated up to 250 amps. The nozzle features a 3/8 inch (0.375 inch) bore and measures 3.015 inches in length with a 3/4 inch outer diameter. Constructed from 122 DHP copper alloy tubing that is cut and formed to shape, it delivers reliable conductivity and durability in light to medium duty welding applications. The part number is rolled and stamped on the outer surface for quick field identification. Sold as 2 per pack.

This nozzle is suited for light to medium duty MIG welding applications drawing up to 250 amps. The flush contact tip configuration positions the tip closer to the work piece, making it appropriate for applications where a shorter electrical stick-out is used, which can result in shorter or tighter arc lengths. The nozzle slides over the standard nozzle insulator and is adjustable to achieve the desired contact tip-to-nozzle relationship. Typical install environments include fabrication shops, maintenance welding, and general structural work.

Key Features

• 122 DHP copper alloy construction for consistent conductivity and heat resistance
• Part number rolled and stamped on outer surface for easy identification in the field
• Adjustable positioning over standard nozzle insulator to dial in contact tip and nozzle relationship
• Flush tip design suited for shorter electrical stick-out and tighter arc lengths
• 3/8 inch bore with 3/4 inch OD fits Tweco No. 2 standard gas diffuser setups
• Sold as 2 per pack

Compatibility

Designed for use with Tweco No. 2 MIG guns rated up to 250 amps using a standard gas diffuser and standard nozzle insulator.

Installation Notes

Installation is performed by welding technicians or qualified welders. Always power down and disconnect the welding machine before servicing front-end consumables. Slide the nozzle over the nozzle insulator and adjust axial position to set the desired tip-to-nozzle relationship before resuming operation. Inspect mating insulator and diffuser for wear or spatter buildup during each nozzle change.

Technical Specifications

• Bore Diameter: 0.375 inches
• Nozzle Length: 3.015 inches
• Outer Diameter: 0.75 inches
• Maximum Amperage: 250 amps
• Tip Configuration: Flush, 0 to 1/8 inch tip recess
• Material: 122 DHP copper alloy
• Package Weight: 0.12 pounds
• Package Quantity: 2 per pack

Standard Information

• Brand: TWECO
• Manufacturer Part Number: 1220-1301