Canadian owned and operated
When you pick up a Tweco Classic 4, you are holding the industry standard. For decades, the Classic No. 4 MIG gun has been the go-to tool for professional welders who need a torch that can take a beating and keep on laying beads. This 400-amp air-cooled beast is built for the real world—where equipment gets dropped, dragged, and pushed to the limit. With its 12-foot cable, you get enough slack to move around your workpiece without dealing with the feeding issues that can plague longer guns.
Built for Comfort and Control
The Classic 4 features the iconic paddle-style handle that fits naturally in a gloved hand, reducing fatigue during those long days under the hood. The trigger action is crisp and reliable, giving you precise control over your arc starts and stops. Because it uses standard Tweco consumables (the ones you can find in almost any tool crib), you never have to worry about hunting down obscure parts when you need to swap a tip or clean a nozzle.
Ready to Burn Wire
Out of the box, this gun is set up for .035" to .045" wire, covering the vast majority of structural and fabrication work. The Tweco backend connection means it plugs right into your feeder with a solid, conductive fit. Whether you are welding heavy plate, structural beams, or production parts, the Classic 4 delivers the consistent gas coverage and electrical conductivity you need for X-ray quality welds. Don't settle for lightweight imitations; stick with the classic that defined the category.
| Additional Information |
|---|
| Brand:Tweco |
| Amperage:400 |
| Length:12 ft |
| Wire Size:0.035" - 0.045" |
| Back End:Tweco |
| Item:MIG Gun |
| Torch Type:Air Cooled |
| Duty Cycle:60% @ 400A |
| Cooling Method:Air Cooled |
| Handle Style:Classic Paddle |
| Consumable Compatibility:14 Series Tips, 24 Series Nozzles, 54 Series Diffusers |
| Packaging Description:pack of 1 |
