Sorry, product has been discontinued by the vendor.
The Tweco Classic No. 4 MIG Gun (SKU: 10401936 / Internal: TWE1040-1936) represents the gold standard in air-cooled semi-automatic welding instrumentation. Rated for 400 Amps at a 60% duty cycle when using CO2 shielding gas (350 Amps with mixed gases), this gun is engineered for high-volume, heavy-duty industrial fabrication. This specific configuration features a 15-foot (4.6-meter) cable assembly and is terminated with a Euro-Kwik connection, ensuring compatibility with a vast array of European and multi-process power sources that utilize the Euro receptacle standard.
The Classic No. 4 is built around a heavy-duty coaxial cable design that maximizes conductivity while maintaining flexibility. The cable housing is constructed from abrasion-resistant rubber, protecting the internal copper stranding and gas liner from the rigors of the shop floor. The gun utilizes the traditional Tweco connection geometry at the front end, accepting the widely standardized 14 Series contact tips, 24 Series gas diffusers, and 24 Series nozzles. This compatibility ensures that consumable inventory management remains streamlined for facilities already utilizing Tweco platforms.
Designed for GMAW (MIG) and FCAW (Flux-Cored) processes, the gun supports wire diameters from 0.035 inches (0.9 mm) up to 5/64 inches (2.0 mm), depending on the liner and contact tip configuration installed. The 60% duty cycle rating allows for extended welding intervals without overheating, making it suitable for structural steel, heavy equipment manufacturing, and shipbuilding applications. The Euro connector block provides a secure, tool-free connection to the wire feeder, integrating power, gas, and trigger signals into a single robust interface.
One of the defining characteristics of the Tweco Classic series is its complete serviceability. Unlike disposable torches, every component of the Classic No. 4—from the trigger switch to the cable assembly—can be replaced or repaired. This modularity significantly extends the service life of the asset, providing a lower total cost of ownership over time compared to non-repairable alternatives.
| Additional Information |
|---|
| Amps:400 |
| Cable Length:15 ft |
| Cooling Method:Air Cooled |
| Connection Type:Euro |
| Duty Cycle:60% @ 350A (Mixed Gas), 60% @ 400A (CO2) |
| Wire Diameter Capacity:0.035" - 5/64" (0.9 - 2.0mm) |
| Process Type:Flux-Cored (FCAW), MIG (GMAW) |
| Series:Classic No. 4 |
