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The Tweco Classic No. 4 MIG Gun (SKU: 10401921) is a heavy-duty, air-cooled welding torch designed for professional industrial applications. Rated at 400 Amps at 60% duty cycle, this gun is built to withstand the rigors of high-volume manufacturing, structural steel fabrication, and heavy equipment repair. This specific configuration comes with a 12-foot cable and a Miller-style rear connection, making it a direct replacement or upgrade for compatible Miller wire feeders and power sources.
Pre-setup for 1/16" (1.6mm) welding wire, this gun is ready to tackle thick materials and high-deposition welding tasks immediately. The Classic No. 4 series is renowned for its rugged construction and ease of maintenance. It utilizes the widely available Tweco 14 Series contact tips, 24 Series nozzles, and 54 Series gas diffusers, ensuring that consumables are always easy to find and affordable. The handle is designed with the welder's comfort in mind, featuring a balanced grip and a durable trigger mechanism that has been proven in the field for decades.
The cable assembly features a heavy-duty jacket that resists cuts, abrasion, and heat, protecting the copper conductors and gas liner within. Whether you are running flux-cored wire or solid MIG wire, the Tweco Classic No. 4 delivers a stable arc and consistent wire feeding. Its modular design allows for the replacement of individual components, such as the trigger, gooseneck, or cablehose, extending the lifespan of the tool and reducing long-term operating costs.
| Additional Information |
|---|
| Amperage:400 A |
| Cable Length:12 ft |
| Connection Type:Miller |
| Wire Size:1/16" (1.6 mm) |
| Cooling Method:Air Cooled |
| Duty Cycle:60% @ 400A |
| Series:Classic No. 4 |
| Process Type:Flux-Cored (FCAW), MIG (GMAW) |
