
The Tweco Classic No. 4 MIG Gun (SKU: 10401688) is a heavy-duty, air-cooled welding torch designed for high-amperage industrial applications. Rated at 400 Amps at a 60% duty cycle using CO2 gas, this gun is engineered to withstand the rigors of structural steel fabrication, heavy equipment manufacturing, and general industrial welding. This specific configuration features a 15-foot cable assembly, providing ample reach for welders working on large assemblies or in dynamic production environments.
Equipped with a Miller-style backend connection, this gun is designed for direct plug-and-play compatibility with Miller wire feeders and power sources, eliminating the need for additional adapters. The gun comes set up for .035" to .045" wire diameters, covering the most common range for medium-to-heavy fabrication tasks. It utilizes the renowned Tweco consumable platform, including 14 Series contact tips, 24 Series gas nozzles, and 54 Series gas diffusers, ensuring that replacement parts are readily available and cost-effective.
The construction of the Classic No. 4 emphasizes durability and ease of maintenance. It features a metal-jacketed conductor tube and a rugged handle that houses a reliable paddle switch. The cable connection is mechanical, allowing for field repairs if necessary, which minimizes downtime in critical production schedules. The simplified design reduces the number of failure points, making it a preferred choice for MRO managers seeking reliability and longevity in their welding equipment assets.
Key Technical Specifications:
| Additional Information |
|---|
| Brand:Tweco |
| Amperage:400 |
| Length:15 ft |
| Back End:Miller |
| Wire Size:0.035" - 0.045" |
| Torch Type:MIG Gun, Air Cooled |
| Duty Cycle:60% @ 400A (CO2), 60% @ 200A (Mixed Gas) |
| Cooling Method:Air Cooled |
| Handle Style:Classic, Paddle Switch |
| Consumable Series:14 Series Tips, 24 Series Nozzles, 54 Series Diffusers |
| Packaging Description:pack of 1 |