Miller Big Blue 251D User Manual download pdf

Quick

Specs

Quiet at only 70 decibels (95 Lwa)

at idle and 79 decibels (104 Lwa) at

maximum output. Improves jobsite

communications.

Meter maintenance displays

• Fuel gauge

• Hour meter function

• Oil change interval

• High coolant temperature and

low oil pressure shutdowns

• Low fuel shutdown — engine shuts

down before system runs out of

fuel, making restarts easy.

Low maintenance with easy single-side

access to engine and 500 hour oil changes

for both engine and compressor.

Arc-Drive

™

makes welding easy.

Automatically enhances Stick

welding, especially on pipe, by

focusing the arc and preventing

the electrode from going out.

Optional

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.)

Big Blue

Air Pak

™

Diesel Engine-Driven Welder/

AC Generator/Air Compressor

Issued June 2012 • Index No. ED/10.5

Hot Start

™

provides positive stick

electrode starts to make it easy to

start all types of electrodes.

Enclosed robust case design protects

internal components from impact and

allows air flow to cool and prolong the life

of the engine. Also reduces sound levels.

Welder/generator/air compressor.

One machine that will do it all. Designed

and built to be the most reliable high-

output system in the world.

Weatherproof Lexan

nameplate

resists cracking and fading, and is

color-coded for ease of operation.

GFCI receptacle as required on most

jobsites to protect operators from

electrical hazards.

Heavy-duty low-speed

industrial turbocharged

diesel engine provides

ample power at high altitudes.

Independent compressor controls.

On/off switch for applications not

requiring compressed air. At idle

speed will produce 100 PSI at 40 CFM.

Ultra-reliable industrial rotary screw

air compressor. Belt-driven with

automatic belt tensioner with a life

expectancy of 30,000 hours.

The Power of Blue

Welder/Generator/Air Compressor is warranted

by Miller for 3 years, parts and labor.

Engine is warranted by Deutz for 3 years.

Heavy Industrial

Applications

Railroad Maintenance

Mining Maintenance

Maintenance and Repair Rigs

Processes

DC Stick (SMAW)

AC Stick (SMAW)*

MIG (GMAW)

Flux-Cored (FCAW)

DC TIG (GTAW)

AC TIG (GTAW)*

Submerged Arc (SAW)

Stud Welding — 1/2 inch (12.7 mm)

Air Carbon Arc (CAC-A)

1/2-inch (12.7 mm) carbons

Air Plasma Cutting

with Optional Spectrum Models

Battery Charging/Jump-Starting*

Air Compressor

Output Range

DC Stick 45–750 A AC Stick 35–575 A*

MIG/FCAW 14–40 V

DC TIG 20–450 A AC TIG 20–375 A*

Battery Charge 12/24 V, 50–750 A*

*Deluxe Model Only.

Weld Output Rated at 104˚F (40˚ C)

Stick 600 A at 44 V (26.4 kW), 40% Duty Cycle

Stick 550 A at 42 V (23.1 kW), 60% Duty Cycle

MIG/FCAW 500 A at 40 V (20 kW), 100% Duty Cycle

AC TIG 400 A at 26 V (10.4 kW), 100% Duty Cycle*

Air Compressor 100 PSI, 60 CFM, 100% Duty Cycle

Generator Output Rated at 104˚ F (40˚ C)

5500 Watts Peak — 4000 Watts Continuous

20,000 Watts 3-Phase/

12,000 Watts 1-Phase Continuous*

Accu-Rated

™

– Not Inflated

Generator Power

EPA Tier 4i

Compliant

EPA Tier 4i

Compliant

EPA Tier 4i

Compliant

EPA Tier 4i

Compliant

Big Blue Air Pak Deluxe Model shown.

Miller Electric Mfg. Co.

An Illinois Tool Works Company

1635 West Spencer Street

Appleton, WI 54914 USA

Website

MillerWelds.com

Equipment Sales US and Canada

Phone: 866-931-9730

FAX: 800-637-2315

International Phone: 920-735-4554

International FAX: 920-735-4125

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Summary of Contents

Page 1 - Big Blue

QuickSpecsQuiet at only 70 decibels (95 Lwa) at idle and 79 decibels (104 Lwa) atmaximum output. Improves jobsitecommunications.Meter maintenance disp

Page 2 - Specifications

WeldingModeCC/DCCV/DCCC/AC*Battery*ChargeJump-StartWeld Output Rated at 104˚ F (40˚ C)NEMA Amperage and Voltage600 A at 44 V (26.4 kW), 40% Duty Cycle

Page 3 - Performance Data

3Performance DataFUEL CONSUMPTION CURVE0.000.250.500.751.001.251.501.752.002.252.502.753.000 50 100 150 200 250 300 350 400 450 500 550 600DC WELD AMP

Page 4 - Accessories

4Genuine Miller®AccessoriesDesiccant Air Dryer System #195 117A regenerating inline air dryer system thateliminates moisture in the air stream topr

Page 5

5Genuine Miller®Accessories (continued)TIG (GTAW) WeldingDynasty®200 SeriesFor premiumportable AC/DC TIGarc quality. See Lit.Index No. AD/4.8.HF-251

Page 6 - Mounting Specifications

64 West Four-Wheel Steerable Off-Road Trailer #042 801A heavy-duty 2570-pound (1166 kg)capacity trailer designed for use in mines,quarries, and oth

Page 7 - Typical Installations

MIG Gun Work SuitCase 8RC/12RC Work Stick Electrode Work Flux-Cored GunAluminum MIG with Spoolmatic 30A Gun Work Cutting Torch Work Spectrum 14-Pin

Page 8 - Ordering Information

Litho in USADistributed by:Equipment and Factory Options Stock No. Description Qty. PriceBig Blue®Air Pak™CC/CV #907 062 U.S. Base Model with Automati