Tweco 1023-1289 Air-cooled Mig Gun 250A 25 Ft Miller

Product Description

The TWECO 1023-1289 is an air-cooled MIG gun rated at 250 amps with a 60% duty cycle, designed for GMAW, FCAW, and aluminum GMAW welding applications. This is the VELOCITY2a Spray Master V250 model, featuring a Miller style connector and a 25-foot cable assembly. VELOCITY2 front end consumables come pre-assembled on the gun. Gas ported contact tips are integrated into the VELOCITY2 front end design, helping the tip run cooler and extend service life. Built for light to medium-duty fabrication environments, this gun is suited for professional welders running a range of wire diameters from 0.035 to 0.045 inches.

The 1023-1289 is intended for use with Miller-compatible welding machines in shop and production fabrication settings. The 25-foot cable length provides working range for fixed welding stations and light industrial benches. The gun handles solid wire GMAW, flux-cored FCAW, and aluminum GMAW processes, making it a versatile tool for fabrication shops running multiple weld processes. A 42 Series conduit liner is installed, and the standard conductor tube part number is 1240-1374.

Key Features

• 250 amp rating at 60% duty cycle for sustained production welding
• Gas ported VELOCITY2 contact tips run cooler and extend tip life without threads or tools for removal
• Compatible with GMAW, FCAW, and aluminum GMAW processes
• Wire diameter range: 0.035 to 0.045 inches
• Miller style connector for direct machine compatibility
• VELOCITY2 front end consumables pre-assembled at the factory
• 42 Series conduit liner and standard conductor tube 1240-1374 included

Compatibility

Designed for use with Miller style MIG welding machines. Compatible with wire diameters from 0.035 to 0.045 inches across GMAW, FCAW, and aluminum GMAW processes. Uses VELOCITY2 front end consumables and a 42 Series conduit liner.

Installation Notes

Installation and service should be performed by a qualified welding technician or electrician familiar with GMAW equipment. Power down and disconnect the welding machine before attaching or removing the gun cable connector. Verify the liner and contact tip are correctly seated before initiating an arc. Follow the machine manufacturer's guidelines and applicable ANSI welding safety standards during setup.

Technical Specifications

• Amperage: 250 amps
• Duty Cycle: 60%
• Cable Length: 25 ft
• Wire Diameter Range: 0.035 to 0.045 inches
• Cooling Type: Air-Cooled
• Connector Style: Miller Style
• Welding Processes: GMAW, FCAW, Aluminum GMAW
• Conduit Liner: 42 Series
• Conductor Tube: 1240-1374 (Standard)
• Weight: 13.4 pounds

Standard Information

• Brand: TWECO
• Manufacturer Part Number: 1023-1289