Canadian owned and operated.
Transform your welding truck into a complete mobile fabrication shop with the Miller Big Blue 800 Duo Air Pak (Deutz). This all-in-one solution combines a high-amperage welder, a powerful AC generator, and an industrial air compressor into one reliable package. Whether you are gouging thick steel, repairing heavy equipment, or running a multi-man crew on a remote site, the Big Blue 800 delivers the power you need with the reliability Miller is famous for.
Why haul two machines when one can do the job? The Big Blue 800 Duo allows two operators to weld simultaneously with up to 400 amps each. The premium arc quality ensures that neither welder experiences interference from the other. If you need maximum power for carbon arc gouging (up to 1/2-inch carbons) or submerged arc welding, simply flip the switch to combine the outputs for a full 800 amps of pure DC power.
Forget about towing an extra compressor. The Big Blue 800 features a built-in Ingersoll Rand rotary screw air compressor that pumps out 60 CFM. It’s perfect for powering pneumatic tools, plasma cutters, and carbon arc gouging torches. The compressor is belt-driven and features a 30,000-hour life expectancy, ensuring it will be ready to work whenever you are.
Time is money, and walking back and forth to the welder to adjust settings wastes both. With ArcReach technology, you can change your weld settings right from the feeder or stick/TIG remote. This technology uses your standard weld cables to communicate, eliminating the need for expensive and easily damaged 14-pin control cords. This keeps your setup clean and keeps you welding longer.
The Big Blue 800 is built to last. It features a heavy-duty powder coat with zinc-rich primer to resist rust and corrosion. The Deutz T4F diesel engine is liquid-cooled and turbo-charged, providing clean, green power without the hassle of exhaust after-treatment maintenance. The electronic engine display keeps you informed of all vital stats, including fuel level, oil pressure, and engine hours, so you can plan maintenance effectively.
Includes: Base unit, ArcReach technology, Vandalism Lockout Kit, and 120V block heater. Invest in the machine that pays for itself in fuel savings and productivity gains.
| Additional Information |
|---|
| Brand:Miller |
| Weld Process:Engine Drive |
| Amperage:800, 400 |
| Duty Cycle:100% |
| Watts:12000 W, 20000 W |
| Engine Brand:Deutz TD2.9 L4 T4F |
| Fuel Type:Diesel |
| Air Compressor:Ingersoll Rand Rotary Screw, 60 CFM |
| Generator Output (3 Phase):20,000 Watts Continuous, 27,000 Watts Peak |
| Generator Output (1 Phase):12,000 Watts Continuous, 15,000 Watts Peak |
| Weld Output (Single Operator):800 A at 38 V, 100% Duty Cycle |
| Weld Output (Dual Operator):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:950 kg (2095 lbs) |
| Item:Welder Generator |
| Packaging Description:1 PER EA |
| Voltage:n/a |
Used this product on the job? Tell other welders how it held up.
Best investment
I use this welder for bucket repairs onsite would recommend the miller 800 to everyone.
Expensive, many problems
Hi everyone ! We buy that machine 3 years ago and we had many problems : - Problems with control, can't use and adjust correctly - The air clutch had broken - Lose of prestone & probs with radiators We habe old Big blue 500 and they are beast, no probs and always ready to deliver the jobs when we need it. We are very disapointed from the Big Blue 800 Duo Air Pak and we will not buy the same model again. Next time we will buy less complicated model with less electronicals components. Sorry Miller.
Miller responded
Merchant Response Thank you for your feedback. I have passed this on to the Power Systems Team, and they will be reaching out via email. In the meantime, please contact customer service at 920-734-9821. We look forward to chatting with you!
If I could afford it I would buy it
My company bought one of these machines and we use it daily. It's pricey but if you own a big company and need the productivity this machine will run two ln-25 pro wire feeders while using the compressor and 2 nine inch metabo grinders all at the same time. This thing is a beast. The only down side I can see is the price. But the machines are awesome great job Miller
$1,350 Rebate
$1,000 Rebate
