
The Miller Big Blue 800 Duo Air Pak Truck Mount Spec (907752001) is a powerhouse engine-driven welder designed for the most demanding industrial applications. At its core lies a heavy-duty, low-speed Deutz TD2.9 L4 T4F industrial diesel engine, engineered to provide reliable power while meeting stringent Tier 4 Final emission standards. This engine utilizes Diesel Oxidation Catalyst (DOC) technology, ensuring the cleanest exhaust without the need for complex after-treatment maintenance, keeping your operation green and efficient.
This machine is a true multi-process workhorse, capable of Stick, MIG, Flux-Cored, DC TIG, and Submerged Arc welding, as well as Air Carbon Arc Gouging with carbons up to 1/2 inch in diameter. Its defining feature is the multi-arc capability: it functions as a single operator unit delivering up to 800 amps or splits into two independent arcs providing up to 400 amps each. This dual-operator functionality, combined with the ability to plug in additional inverters, transforms the Big Blue 800 into a multi-operator platform, significantly increasing job site efficiency and profitability.
Integrated into the unit is an ultra-reliable Ingersoll Rand industrial rotary screw air compressor. Delivering 60 cfm of air, it features independent on/off control, allowing the compressor to run only when needed. This integration reduces fuel consumption and extends service intervals compared to constant-run systems. The Truck Mount Spec is specifically designed for bed mounting, with critical controls positioned for easy reach by ground-based operators, enhancing safety and ergonomics. Standard safety features include an FA-1D lockable flame arrestor fuel cap, spark arrestor, and air cleaner restriction indicators.
Equipped with Miller's exclusive ArcReach technology, the Big Blue 800 Duo Air Pak minimizes downtime and safety hazards. Operators can adjust voltage and amperage at the weld joint using compatible ArcReach wire feeders or remotes, eliminating the need for control cables and reducing trips back to the power source. The electronic engine display provides real-time monitoring of fuel levels, engine hours, coolant temperature, and diagnostics, ensuring maintenance is proactive and downtime is minimized. With 20,000 watts of continuous three-phase power and 12,000 watts of single-phase power, this unit also serves as a formidable generator for job site tools and lighting.
| Additional Information |
|---|
| Brand:Miller |
| Weld Process:Engine Drive, Multi-Process |
| Amperage:800 |
| Duty Cycle:100% |
| Watts:12000 W |
| Packaging Description:1 Per Ea |
| Engine Model:Deutz TD2.9 L4 T4F |
| Horsepower:65.7 hp |
| Air Compressor:Ingersoll Rand Rotary Screw (60 cfm) |
| Auxiliary Power:27,000 watts peak (3-phase), 20,000 watts continuous (3-phase), 12,000 watts continuous (1-phase) |
| Fuel Capacity:25 Gallon |
| Weld Output (Single Mode):800 A at 38 V, 100% Duty Cycle |
| Weld Output (Dual Mode):400 A at 36 V, 100% Duty Cycle (per side) |
| Dimensions:46 in (H) x 28.5 in (W) x 69.5 in (L) |
| Net Weight:2095 lbs |
| Voltage:n/a |