10301137 - Tweco Classic 3 MIG Gun, 300A, 15ft, Miller Plug, 1/16 Wire

The Industry Standard for Heavy-Duty Welding

The Tweco Classic No. 3 MIG Gun (1030-1137) represents the gold standard in semi-automatic welding torches. For decades, the Classic series has been the go-to choice for professional fabricators who demand reliability, durability, and ease of service. This specific configuration is rated for 300 Amps at a 60% duty cycle and comes equipped with a 15-foot cable, providing ample reach for working around large assemblies or fixtures.

Designed for seamless integration, this gun features a Miller-style rear connection, allowing it to plug directly into most Miller wire feeders and power sources without the need for adapters. What sets this model apart is its setup for 1/16" (1.6mm) wire, making it an immediate solution for heavy fabrication tasks often involving flux-cored or heavy solid wires used in structural steel, shipbuilding, and heavy equipment repair.

Rugged Construction & Ergonomics

The Classic No. 3 is built to withstand the harsh environment of industrial welding. It features a heavy-duty metal-jacketed conductor tube and an impact-resistant handle. The handle's oval shape and paddle-style trigger have been ergonomically refined over years of welder feedback to minimize hand fatigue during long shifts. The air-cooled design is efficient and robust, utilizing high-quality copper components to ensure consistent electrical conductivity and heat dissipation.

Easy Maintenance

One of the primary advantages of the Tweco Classic series is its serviceability. The gun uses standard Tweco consumables—including 14 Series contact tips, 24 Series nozzles, and 34 Series gas diffusers—which are widely available and cost-effective. The simplified design allows for quick liner changes and field repairs, ensuring your downtime is kept to an absolute minimum.