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Miller Big Blue Air Pak (Deluxe) CC/CV AC/DC 20 kW

Miller Big Blue Air Pak Deluxe Model WelderMiller Big Blue Air Pak - Deluxe Model

Top Features

  • Portable DC CC CV Welding With an Added AC Output Kit
  • Up to 20,000 Watts of Three-Phase 240 VAC Auxiliary Power
  • Allows for Heavy Aluminum AC TIG Welding in the Field
  • Plasma Cutting 1" Thick Material with Optional Plasma Cutter
  • Processes: Stick (SMAW), TIG (GTAW), MIG (GMAW), Submerged Arc (SAW), Air Carbon Arc Cutting, Flux-Cored (FCAW) , Stud Welding

Welder/generator/air compressor - Rent one machine that will do it all. This deluxe model welding machine is designed and built to be the most reliable high-output system in the world.

Product Details


Weld Output Range: CC/DC: 20 - 750 A
CV/DC: 14 - 40 V
CC/AC: 20 - 575 A
Battery Charge Jump-Start: 12/24 V
Weld Output Rated at
104° F (40° C) NEMA
Amperage and Voltage:
600 A, 44 V, 26.4 kW, 40% Duty Cycle
550 A, 42 V, 23.1 kW, 60% Duty Cycle
500 A, 40 V, 20 kW, 100% Duty Cycle
CV/DC: 500 A, 40 V, 20 kW, 100% Duty Cycle
CC/AC: 400 A, 36 V, 14.4 kW 100% Duty Cycle
Battery Charge Jump-Start:  
750 A, 12 V, Jump-Start
750 A, 24 V, Jump-Start
Maximum OCV: CC/DC: 95
CV/DC: 56
CC/AC: 64
Battery Charge Jump-Start: 14/28
Generator Output Rated
at 104° F (40° C):
Peak: 5500 watts
Continuous: 4000 watts, 120/240 VAC, 34/17 A, 60 Hz while welding
3-phase, 20 kW, 36 A, 240 VAC
1-phase, 12 kW, 50 A, 120/240 VAC while not welding
Dimensions: H*: 43" (1092 mm) W: 28.5" (724 mm) D: 67.5" (1715 mm)
*Additional 7" (178 mm) to top of exhaust
Weight: Without fuel: 1956 lb (887 kg)
With full fuel tank: 2146 lb (973 kg)
Engine Brand: Deutz, BF4M 2011 Diesel TD2011L04w
Features: Tier IVi, EPA-certified, turbocharged direct-injected, liquid-cooled (oil) engine. Right side service access with 500 hr intervals for oil and filters. MSHA approved with purchase of certificate from Deutz dealer.
HP: 63.4
Type: Four-cylinder, industrial, liquid-cooled engine
Engine Speeds: 1850 Run
1235 Idle
Fuel Capacity: 25 gal (95 L)
Oil Capacity: 11 qt (10.4 L)
Automatic Engine Shutdowns: Oil pressure
Oil temperature
Air Compressor
Compressor Brand: Ingersoll-Rand CE55 G1
Features: Rotary screw with electric clutch for on/off. Oil change intervals 500 hrs (same as engine). Life expectancy 30,000 hrs.
Free Air Delivery: 60 cfm (1.70 m3/min) at 1850 RPM
40 cfm (1.13 m3/min) at 1235 RPM
Working Pressure Constant: 100 psig (7 bar)
Duty Cycle: 100%
Oil Capacity: 5 qt (4.7 L)
Automatic Compressor Shutdowns: Oil temperature


Stick (SMAW)



Submerged Arc (SAW)

Air Carbon Arc Cutting

Flux-Cored (FCAW)

Stud Welding

Additional Features

Deluxe Model (#907 062-07-1): Automatic Idle, Engine Gauges, 5.5 kW AC Generator, Weld Meters, Battery Lockout/Tagout Disconnect Switch, 12 V Intake Manifold Heater, 120 V Oil Pan Heater, Vandalism Lockout Kit, 20 kW Generator, AC/DC/Battery Charge/Jump-Start Switch

Meter maintenance display

  • Hour meter function
  • Oil Change interval
  • Diesel: High coolant temperature and low oil pressure shutdowns
  • Diesel: Low fuel shutdown - engine shuts down before system runs out of fuel making restarts easy

Welder/generator/air compressor - Miller's Big Blue Air Pak will do it all. Designed and built to be the most reliable high-output system in the world.

Ingersoll Rand ultra-reliable industrial rotary screw air compressor. Belt-driven with automatic belt tensioner with a life expectancy of 30,000 hrs.

Independent compressor controls - On/off switch for applications not requiring compressed air. At idle speed will produce 100 PSI at 40 CFM.

Weatherproof Lexan nameplate resists cracking and fading, and is color-coded for ease of operation.

Enclosed robust case design protects internal components of the big blue from impact and allows air flow to cool and prolong the life of the engine. Also reduces sound levels.

GFCI receptacle as required on most job sites to protect operators from electrical hazards.

Low maintenance with easy single-side access to engine and 500 hour oil changes for both engine and compressor.

Quiet at only 70 dB (95 Lwa) when idle, 79 dB (104 Lwa) at maximum output. Improves work site communications.

Hot Start provides positive stick electrode starts to make it easy to start all types of electrodes.

Arc-Drive makes welding with the Big Blue easy. Automatically enhances Stick welding, especially on pipe, by focusing the arc and preventing the electrode from going out.

AC/DC/battery charge/jump-start for AC TIG welding and 12 or 24 volt batteries. Simply select the battery voltage and connect cables to the separate battery output studs. (High-frequency unit required for AC TIG.)

All Product Resources


Miller Big Blue Air Pak (Deluxe) CC/CV AC/DC 20 kW

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Airgas, an Air Liquide company, is a leading U.S. supplier of industrial, medical and specialty gases, as well as hardgoods and related products; one of the largest U.S. suppliers of safety products; and a leading supplier of ammonia products and process chemicals.