10401935 - Tweco Classic 4 MIG Gun 400A 12ft Euro Connection

Heavy-Duty Industrial Performance

The Tweco Classic No. 4 MIG Gun (SKU: 1040-1935) represents the gold standard in air-cooled welding torches for heavy industrial applications. Rated at 400 Amps at a 60% duty cycle using CO2 gas, this gun is engineered to withstand the rigors of high-volume manufacturing, structural steel fabrication, and heavy equipment repair. The "Classic" series is renowned for its durability, featuring a heavy-duty metal-jacketed conductor tube and a rugged handle design that protects internal components from impact and heat.

Euro-Kwik Connection System

This specific model is outfitted with a Euro-Kwik rear connection, making it instantly compatible with a vast array of European-style wire feeders and power sources commonly found in global manufacturing environments. The Euro connector simplifies the setup process by combining power, gas, and trigger control into a single, quick-disconnect interface. This eliminates the need for separate adapters or complex cabling, ensuring a secure and conductive connection that minimizes voltage drop and gas leaks.

Optimized Reach and Feedability

With a 12-foot (3.6-meter) cable assembly, this gun offers an optimal balance between operator mobility and wire feeding performance. The 12-foot length is ideal for bench work and fabrication cells where excessive cable length could lead to feeding issues or tripping hazards. The cable itself is constructed with high-quality copper stranding and a durable outer jacket that resists cuts, abrasion, and weld spatter, ensuring longevity even in harsh shop floor conditions.

Consumable Compatibility

Maintenance and inventory management are simplified as the Classic No. 4 utilizes standard Tweco consumables. It is compatible with the widely available 14 Series contact tips, 24 Series gas nozzles, and 54 Series gas diffusers. This backward compatibility ensures that shops already standardized on Tweco parts can integrate this gun without expanding their consumable inventory. The gun comes set up for standard wire diameters (typically .035"-.045"), but can be easily adapted for wires up to 5/64" (2.0 mm) with the appropriate liner and tip changes.