The Tweco Classic No. 4 MIG Gun (SKU: 10401934, Part: VX4103545-10FT-EUR) represents the gold standard in air-cooled semi-automatic welding torches. Designed for heavy-duty industrial fabrication, this gun is rated at 400 Amps at a 60% duty cycle using CO2 gas, making it suitable for high-deposition welding on thick plate and structural steel. The 'Classic' designation refers to the traditional, rugged design that has been a staple in shipyards, manufacturing plants, and fabrication shops for decades. This specific configuration features a 10-foot (approximately 3-meter) cable assembly, offering a balance between reach and wire feedability, ideal for bench work or stationary welding cells.
A key technical feature of this model is the Euro-style back-end connection. Unlike direct-connect plugs specific to certain feeder brands (like Miller or Lincoln specific plugs), the Euro connector is a standardized interface widely used across European and many modern multi-process welding machines. This allows the high-performance Tweco Classic 4 platform to be integrated into a diverse fleet of welding power sources without the need for complex adapters. The gun is typically configured out of the box for 0.035-inch to 0.045-inch (0.9mm - 1.2mm) welding wires, covering the most common range for general fabrication.
The construction of the Classic No. 4 includes a heavy-duty metal-jacketed conductor tube and a durable, impact-resistant handle. The cable utilizes high-quality copper stranding for efficient current transfer and is protected by a tough outer jacket resistant to cuts, abrasion, and weld spatter. Maintenance is straightforward, with a design that allows for quick change-outs of contact tips, nozzles, and liners, minimizing downtime in production environments. The 'VX' in the part number often indicates compatibility with or inclusion of Tweco's high-performance consumable lines, ensuring stable arc characteristics and long consumable life.
| Additional Information |
|---|
| Amperage:400 A |
| Cable Length:10 ft |
| Connection Type:Euro |
| Wire Size:0.035/0.045 |
| Cooling Method:Air Cooled |
| Duty Cycle:60 |
| Series:Classic No. 4 |
| Process Type:Flux-Cored (FCAW), MIG (GMAW) |
