Big Blue® 800 Duo Pro Air Pak Engine-Driven Welder - MillerWelds

Big Blue® 800 Duo Air Pak™

907752
Our most powerful Air Pak offers dual-operator productivity and Multiprocess flexibility. The clean running EPA T4i & T4F compliant engines reduce emissions.
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Spec Sheet (ENG)

Features

What's Included

Heavy-Duty Low-Speed DEUTZ TD2.9 L4 T4F Industrial Diesel Engine
The cleanest, greenest diesel power available. DEUTZ T4F models utilize diesel oxidation catalyst (DOC) technology to keep the air clean with NO exhaust after-treatment maintenance.
Multi-Arc Welding
One dependable engine - two independent arcs with up to 400 amps each (or 800 amps for a single operator). Plug in additional inverter welders for a true multi-operator (3+ arc) work platform!
Increased Efficiency
More arcs and better fuel economy equal increased profits for your business. Estimated savings are 34-percent with a dual-operator unit versus two single-operator units.
Air Compressor - Ingersoll Rand
Ultra-reliable industrial rotary screw air compressor. 30,000-hour life expectancy. Independent on/off control for applications not requiring compressed air — allows for greater fuel savings and longer compressor service intervals.
Industrial USB Port
Quickly upload the latest software and download machine log files to retrieve in-depth information such as diagnostics and machine statistics.
ArcReach® Technology
Exclusive ArcReach technology uses existing weld cables to communicate process adjustment commands back to the welder generator. With an ArcReach system, amperage & voltage are conveniently located at the operator's fingertips - not back at the power source.
ArcReach® Accessories for Every Application
Whether the weld specification calls for Stick, TIG, MIG, Flux-Cored or an advanced wire process, Miller has an ArcReach accessory that can get the job done.
Increased Productivity & Safety
More arc-on time, and reduced exposure to slip, trip, and fall hazards can be realized using ArcReach because less time is spent going back to the welding power supply to set process and arc amperage or voltage.
Electronic Engine Display
Electronic engine display simultaneously displays fuel level, engine hours, coolant temperature, oil pressure, battery volts, air pressure and engine RPMs. Also tracks oil change intervals and displays engine diagnostics for quick and easy servicing.
Other Standard Features
Output contactor control, automatic idle, thermal overload protection, digital meters with SunVision™ and 120-volt engine block heater.

Specifications

Processes

Air Carbon Arc Cutting and Gouging (CAC-A)
Flux Cored (FCAW)
MIG (GMAW)
Pulsed MIG (GMAW-P)
RMD
Stick (SMAW)
TIG DC (GTAW-DC)

General Specifications

Title Big Blue® 800 Duo Air Pak™
Industries Interests Construction
Fabrication
Infrastructure
Maintenance and Repair - Field Operations
Work / Service Trucks
Cold Weather Starting Aids Engine Block Heater
Glow Plugs
Engine Brand Deutz
Engine Compliance T4F
Engine Idle Speed 1350 RPM
Engine Weld Speed 1800 RPM
Fuel Tank Size 25 gal.
Fuel Type Diesel
Horsepower 65.7 hp
Weldable Metals Stainless Steel
Steel
Rated Output 1 Welder: 800 A at 38 V, 100% Duty Cycle
2 Welders: 400 A at 36 V, 100% Duty Cycle
Single Phase Generator Continuous Power 12000 W
Single Phase Generator Peak Power 15000 W
Sound Rating Idle: 71.3 dB / Weld: 78.9 dB
Three Phase Generator Continuous Power 20000 W
Three Phase Generator Peak Power 27000 W
Carbon Diameter 1/2 in (12.7 mm)
Current Type DC
Max Open Circuit Voltage 85 VDC
Amperage Range 20 - 800
Net Width 28.5 in
Net Height 46 in
Net Length 69.5 in
Net Weight 2095 lbs
Warranty Engine Warranties
Miller's True Blue Warranty
Portability Fork Pockets
Lift Eye (Standard)
Trailer (Optional)
Weld Output CC / CV

Accessories

ArcReach Stick-TIG Remote
ArcReach® Stick/TIG Remote

Portable and lightweight, the ArcReach stick/TIG remote paired with a Dimension, XMT, or compatible engine-driven ArcReach power source allows you to change weld setting at your work area, saving a trip to the power supply. No extra control cable to purchase, maintain, string or unstring—saving time and money.
FieldPro Smart Feeder
FieldPro™ Smart Feeder

FieldPro Smart Feeder system delivers excellent RMD® and Pulse, MIG and Flux-Cored welding up to 200 feet away from the power source with no control cables. This system provides full remote control capabilities, including weld process selection, material type and wire diameter, gas type, wire feed speed and voltage from the feeder at the weld joint. The PipeWorx 350 FieldPro Power Source automatically shifts all controls to the Smart Feeder, eliminating confusion, hassle with cords and controls while improving safety.
Wireless Hand Control w Adapter
Wireless Hand Control and 14-Pin Receiver

300 ft. (91.4 m.)operating range
300749 Wireless Adapter Kit to PipePro
Control Adapters

Resources

Articles

Choosing Between Oxy-fuel and Plasma Cutting Systems
Both oxy-fuel and plasma cutting systems have their advantages and disadvantages. Deciding which to use depends on factors such as material type and thickness, available power resources, and the cost and location of the job.
Dual-Operator Welder/Generators Help Superior Steel Complete Complex Structural Erection Projects More Efficiently
As one of the top steel erectors in the country, Superior Steel tackles complex engineering, fabrication and erection jobs. Keeping on schedule is critical, which makes productivity and efficiency key for Superior. To help meet customer demand and gain a competitive edge in completing jobs — while also maintaining weld quality to meet code requirements — the company relies on multiple Miller® Big Blue® 800 Duo Pro diesel engine-driven welder/generators to increase productivity with fewer machines, reduce costs and save space on crowded jobsites. 
Eastfield College Plans to Expand Welding Fabrication Offerings
Students in the welding program at Eastfield College in Mesquite, Texas, can earn certificates in three main welding processes — MIG, TIG or Stick — and the college hopes to soon expand its program to also offer a certificate in welding fabrication, due to industry demand in that area.

Videos

Save Time and Money with Miller ArcReach Remote Control Technology — Now Available on Engine Drives
When welding operators on a jobsite make frequent trips to the power source to adjust weld settings, it can negatively...
ArcReach™ Technology Increases Arc-On Time and Productivity, Reduces Safety Hazards
Providing welding operators with the ability to make parameter adjustments at the weld joint, the exclusive ArcReach...
ArcReach Welding Technology Offers Benefits for Safety, Productivity and Quality
Brian Hammers, engineering manager at Miller Electric Mfg. Co. discusses ArcReach® technology and its benefits for safety,...