Canadian owned and operated
When the heat is on and the welds need to be heavy, professional welders turn to the Tweco Spray Master. The MS420 MIG Gun is a beast of a torch, delivering 400 Amps of pure welding power in a rugged, air-cooled package. This specific model (1040-1059) is built for the big jobs, featuring a generous 20-foot cable that gives you the freedom to move around large assemblies, trailers, and structural beams without constantly dragging your feeder. It comes ready to run 1/16-inch wire right out of the box, perfect for laying down serious metal.
Comfort Meets Durability
Welding at 400 amps generates significant heat, but the Spray Master is designed to keep you cool. The handle is ergonomically shaped to fit naturally in your hand, reducing grip strain during those long passes. The air-cooled design is efficient and reliable, eliminating the hassle of water coolers and leaky hoses while still maintaining a high 60% duty cycle. Whether you are running solid wire or flux-cored, this gun feeds smoothly and stands up to the abuse of a busy shop environment.
Easy Maintenance, Maximum Uptime
Time spent fixing a torch is time not spent welding. That's why the Spray Master is a favorite among fabricators—it's incredibly easy to service. From the heavy-duty contact tips to the durable nozzle and liner, every part is designed for quick replacement. The Tweco backend connection ensures a solid, conductive fit with your machine, minimizing voltage drop and ensuring a crisp, stable arc. Upgrade your setup with the Tweco MS420 and feel the difference that quality engineering makes in your daily fabrication work.
| Additional Information |
|---|
| Brand:Tweco |
| Amperage:400 |
| Length:20 ft |
| Wire Size:1/16" |
| Back End:Tweco |
| Cooling Method:Air Cooled |
| Duty Cycle:60% |
| Process Type:MIG (GMAW), Flux Cored (FCAW) |
| Cable Length:20 ft |
| Wire Diameter:1/16" |
| Connection Type:Tweco Style |
| Packaging Description:pack of 1 |
