
When you pick up a Tweco Classic No. 4 MIG Gun, you are holding a piece of welding history that is still the preferred choice for professional welders today. This isn't a plastic toy; it's a heavy-duty tool built for serious arc time. The 1040-1105 model delivers 400 amps of welding power with a massive 25-foot reach, giving you the freedom to weld large assemblies, trailers, and structural beams without being tethered too closely to your machine.
The "Classic" designation refers to the gun's traditional design, which prioritizes durability and heat management. The handle is shaped to fit comfortably in a gloved hand, providing a secure grip that reduces fatigue during long beads. The trigger is responsive and built to last millions of cycles. This gun comes set up for .035" and .045" wire, making it perfect for general fabrication and structural work right out of the box. The Tweco backend ensures a solid electrical connection to your feeder, minimizing voltage drop and ensuring a smooth, consistent arc.
One of the biggest advantages of the Tweco No. 4 is its simplicity. If you are out in the field or deep in a shop, you can't afford downtime. This gun is fully serviceable. You can change the liner, replace the trigger switch, or swap out the conductor tube in minutes. The heavy-duty steel spring guards prevent the cable from kinking at the stress points, and the air-cooled design means there are no coolant leaks to worry about. It’s just you, the gun, and the puddle.
Why Welders Choose the Classic No. 4:
| Additional Information |
|---|
| Brand:Tweco |
| Amperage:400 |
| Length:25 ft |
| Wire Size:0.035" - 0.045" |
| Back End:Tweco |
| Item:Accessory |
| Torch Type:MIG Gun (Air Cooled) |
| Cooling Method:Air Cooled |
| Duty Cycle:60% @ 400A |
| Connection Type:Tweco |
| Cable Length:25 ft |
| Wire Diameter:0.035", 0.045" |
| Applications:Heavy Equipment, Shipbuilding, Pipeline, Fabrication |
| Packaging Description:pack of 1 |