
The Miller Big Blue 400 Pro (907733001) is a powerhouse engine-driven welder designed for the most demanding industrial applications. Powered by a heavy-duty, low-speed Mitsubishi S4L2 diesel engine, this machine is built to run for 10,000 hours before requiring a major overhaul, ensuring long-term reliability and return on investment. It delivers a robust 400 amps of welding output at 100% duty cycle, making it capable of handling heavy structural steel, pipe fabrication, and maintenance jobs with ease.
One of the standout features of this model is the integrated ArcReach technology. This innovation allows welding operators to adjust process parameters remotely using the wire feeder or remote control, communicating directly through the weld leads. This eliminates the need for fragile and expensive control cables, reduces trip hazards on the job site, and saves valuable time by preventing unnecessary walks back to the power source. Whether you are working on a high-rise structure or a cross-country pipeline, ArcReach keeps you welding longer.
In addition to its welding capabilities, the Big Blue 400 Pro serves as a powerful generator, providing 12,000 watts of peak auxiliary power. This allows you to run grinders, lights, and other job site tools simultaneously without compromising arc performance. The unit also features a digital interface with SunVision technology, ensuring that meters are readable even in direct sunlight, and an industrial USB port for easy software updates and diagnostics.
Key Features:
| Additional Information |
|---|
| Amperage:400 |
| Brand:Miller |
| Duty Cycle:100% |
| Watts:12000 W |
| Weld Process:Engine Drive |
| Engine Brand:Mitsubishi |
| Engine Model:S4L2 |
| Fuel Type:Diesel |
| Auxiliary Power:12,000 Watts Peak, 10,000 Watts Continuous |
| Output Range:20 - 400 A |
| Weld Output:400 A at 24 V (100% Duty Cycle) |
| Dimensions:32 in (H) x 26.25 in (W) x 56 in (D) |
| Net Weight:993 lbs |
| Packaging Description:1 PER EA |
| Voltage:n/a |