The Tweco Classic No. 4 MIG Gun (Part Number: 1040-1907) represents the gold standard in air-cooled semi-automatic welding torches. Designed for heavy-duty industrial applications, this gun is rated at 400 Amps at a 60% duty cycle using CO2 gas, making it a powerhouse for structural steel, heavy fabrication, and manufacturing environments. The 'Classic' series has earned its reputation through decades of reliable performance, offering a simple yet incredibly durable design that welders trust worldwide.
This specific configuration features an extended 25-foot cable assembly, providing significant reach for welders working on large assemblies, trailers, or in shipyards where machine mobility is limited. The cable is constructed with high-quality copper stranding and a durable outer jacket that resists cuts, abrasion, and heat. The rear connection is the standard Tweco style, ensuring compatibility with a vast range of wire feeders and power sources that utilize the Tweco adapter system.
Maintenance and consumable replacement are straightforward with the Classic No. 4. It utilizes the widely available Tweco 14 Series contact tips, 24 Series gas nozzles, and 54 Series gas diffusers. The conductor tube is metal-jacketed for superior durability and impact resistance. The handle is ergonomically designed to reduce operator fatigue during long shifts, while the heavy-duty trigger switch is built to last through thousands of cycles. Whether you are welding mild steel, stainless, or flux-cored applications, the Tweco Classic No. 4 delivers consistent arc stability and wire feeding performance.
Key Technical Specifications:
| Additional Information |
|---|
| Amperage:400 |
| Cable Length:25 ft |
| Brand:Tweco |
| Cooling Method:Air Cooled |
| Connection Type:Tweco |
| Duty Cycle:60% |
| Wire Diameter Capacity:0.035" - 0.045" |
| Series:Classic No. 4 |
| Process Type:MIG (GMAW) |
| Packaging Description:pack of 1 |
