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Big Blue® 450 Duo CST

The Big Blue 450 Duo CST is a rugged, compact, fuel-efficient diesel welder/generator that provides 2 superior arcs in one economical package.

Big Blue 450 Duo CST
  • Big Blue 450 Duo CST
  • Big Blue 450 Duo CST Front Panel
Base Model Starting at:
$20,855.00 List Price (US$)

Additional Models and Pricing

Spec Sheet


Meter Maintenance Displays

  • 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.

Adaptive Hot Start™ For Stick Arc Starts

Automatically increases the output amperage at the start of a weld should the start require it.  Prevents the electrode from sticking and creating an inclusion.

Remote Amperage Control

Provided through 14-pin receptacle on front of the machine.  This permits use of standard and wireless remote amperage control devices.

High Efficiency

Three-Phase, rotating-field generator requires less fuel and horsepower to operate.

Mitsubishi S4L2 Diesel Engine

Used in industrial applications around the world, the S4L2 is designed to run 10,000 hours before major overhaul.

Superior Stick Arc Performance

Even on the difficult-to-run electrodes like E6010

Quiet Operation

At just 72.2 decibels at 23 feet (7 m), it's quieter than most single-operator models, improving jobsite communication and safety.

Other Standard Features

Lift-Arc™ starts provide TIG arc starts without the use of high frequency.
 
Vandalism Lockout Kit. Lockable hinged steel panel protects front control panels and ignition switch.
 
Thermal Overload Protection prevents machine damage if the duty cycle is exceeded or airflow is blocked.
 

Models

Stock #

XMT® 350 VS ArcReach™ 907224002

XMT® 450 VS ArcReach™ 907481002

SuitCase® X-TREME™ 8VS ArcReach™ with Bernard® S-Gun™ 951588

SuitCase® X-TREME™ 8VS ArcReach™ with Bernard® Q300 Gun 951584

SuitCase® X-TREME™ 12VS ArcReach™ with Bernard® S-Gun™ 951589

SuitCase® X-TREME™ 12VS ArcReach™ with Bernard® Q300 Gun 951581

Product Literature
Spec Sheet
Dual Operator Benefits Brochure
Service Truck Installation Drawing
 
ProcessesDC TIG (DC GTAW) 
Stick (SMAW) 
Air Carbon Arc Cutting and Gouging (CAC-A) 
General specificationsInput Power
Diesel Fuel
Rated Output
175 A, 27 VDC, 100% Duty Cycle - Separate (Dual Outputs)
350 A, 27 VDC, 100% Duty Cycle - Paralleled (Combined)
Welding Amperage Range

DC Stick/TIG
5-225 Amps (Each Side)
5-280 Amps (One Side Only)
10-450 Amps (Paralleled)

Net Weight1064 lb. (483 kg.)
Generator Power 104DegF
1-Phase: 10,000 Watts Continuous
MaxOpenCircuitVoltage
77 VDC
Engine
Mitsubishi S4L2, 4-Cylinder, Liquid-Cooled Industrial Diesel Engine, 24.7 HP, 1890 RPM, EPA Tier 4i compliant.
Fuel Capacity & Fuel Type
Fuel: 11.5 gal. (43.5 L)
Oil: 6.3 qt. (6 L)
Coolant: 10 qt. (9.5 L)
Dimensions
Height: 32 in. (813 mm)
Width: 26.25 in. (667 mm)
Depth: 56 in. (1422 mm)
Sound Level
72.2 dB (97 Lwa)
Connections
Tweco & Dinse-Style Models Available
ApplicationsConstruction 
Fabrication 
Field Maintenance and Repair 
Pipe Fabrication 
Rental 
Warranty True Blue With the best coverage in the industry, Miller's True Blue® Warranty [PDF] delivers unparalleled peace-of-mind.

Models

Stock # Manufacturer List Price US$    
  BIG BLUE 450 DUO CST  907477 $20,855.00  
       

Most Popular Accessories

Stock# Manufacturer List Price US$   US and Canada Add to list

4 West Four-Wheel Steerable Off-Road Trailer

Heavy-duty 2570 lb (1166 kg) capacity trailer designed for use in mines, quarries, and other rough terrain. Has narrow 22 ft (6.7 m) turning radius. Includes 3 in lunette eye, universal hitch and safety chains. Note: Trailer is shipped unassembled.

042801$2770.00  

OFR-224 Trailer

A 2650 lb (1202 kg) capacity off road trailer. Welded steel tubing frame, heavy-duty axle with roller bearing hubs and leaf-spring suspension. The OFR-224 comes with jack stand and 2 in (50 mm) ball hitch. Note: Trailer is shipped unassembled.

043802$1785.00  
 View Accessories for OFR-224 Trailer   
 View Accessories for OFR-224 Trailer   
 Cable Tree043826$202.00  
 FENDER KIT (224 TRAILER)300160$320.00  
 DUAL HITCH,2"BALL/3"LUNETTE EYE300831$225.00 Buy Now
    

Hwy-224 Trailer

A 2650 lb (1202 kg) capacity highway trailer. Welded steel tubing frame, heavy-duty axle with roller bearing hubs and leaf-spring suspension. The Hwy-224 comes with jack stand, 2 in (50 mm) ball hitch, fenders and lights. Note: Trailer is shipped unassem

043805$2206.00  
 View Accessories for Hwy-224 Trailer   
 View Accessories for Hwy-224 Trailer   
 Cable Tree043826$202.00  
 FENDER KIT (224 TRAILER)300160$320.00  
 DUAL HITCH,2"BALL/3"LUNETTE EYE300831$225.00 Buy Now
    

Flame Arrestor Kit

Fuel cap can be padlocked to prevent vandalism. A built-in flame arrestor prevents flames or sparks from entering the fuel tank.

043947$660.00  
 

Blue Protective Cover with Logo

Blue with Miller logo. Water resistant cover resists stains and mildew, and protects the finish of your welder. Cannot be used with roll cage option.

195301$303.00  

PRHC-14 Hand Control (14-pin plug)

Complete current or voltage control brings 120 volts GFCI power to work area in a single cord. Housed in a durable light aluminum case and includes 100 ft (30 m) cord with plugs.

195511$1165.00  

CABLE,EXTENSION 24 VAC 14 PIN 8C 50 FT

242208050$266.31  

RHC-14 REMOTE HAND CONTROL W/CABLE 100 FT

Miniature hand control for remote current and contactor control. Dimensions: 4 x 4 x 3-1/4 in (102 x 102 x 82 mm). Includes 100 ft (6 m) cord and 14-pin plug.

242211100$443.00  
 

KIT,FILTER MITSUBISHI (S4L2) EFF W/ MA250132E

252782$80.61  

Wireless Hand Control and 14 Pin Receiver

Improves productivity, eliminates clutter and cord tangles in the work area. Eliminates cord failure and associated downtime/repair costs and extends the welding range without adding cord extensions. Designed for tig, stick, and volt sensing wire feeder

300430$1060.00 Buy Now
 

SPARK ARRESTOR,MUFFLER

300585$225.00  
 

KIT,BLOCK HEATER 120V (MITSUBISHI S4L2)

300664$183.00  
 

KIT,ADAPTER WIRELESS REMOTE ANTENNA

300749$89.00  
 

DUAL HITCH,2"BALL/3"LUNETTE EYE

300831$225.00 Buy Now
       
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