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Big Blue® 400 Pro Engine-Driven Welder

Designed with the professional in mind, the Big Blue 400 Pro is the best for ease of use, reliability and fuel economy.

Big Blue® 400 Pro
  • Big Blue® 400 Pro
  • Big Blue® 400 Pro Front Panel
Base Model Starting at:
$14,440.00 List Price (US$)

Additional Models and Pricing

Spec Sheet


Heavy-Duty Low-Speed Industrial Engines

Designed to operate over 10,000 hours before the first basic overhaul.  Backed by worldwide support and service.

Superior Arc Performance

  • Four preset DIG settings (Stick)
  • Hot Start™ (Stick)
  • Lift-Arc™ TIG with Auto-Stop™ and Crater-out
  • MIG/FCAW arc performance

Simple-to-Set Controls

Requires no elaborate procedure - just select process and weld!

Thermal Overload Protection

Prevents machine damage if the duty cycle is exceeded or airflow is blocked.

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.

Quiet Operation

Improves work site safety and communication.

Auto Remote Sense™ (ARS)

Detects if a remote control is plugged into the 14-pin receptacle and eliminates confusion of a remote/panel switch.

Other Standard Features

Digital preset weld meters, output contactor control, and automatic idle.
 

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
Service Truck Installation Drawing
Diesel Brochure
Big Blue Selection Guide—USA models
 
ProcessesMIG (GMAW) 
DC TIG (DC GTAW) 
Stick (SMAW) 
Flux Cored (FCAW) 
Air Plasma Cutting and Gouging (PAC) with Optional Spectrum Models 
Air Carbon Arc Cutting and Gouging (CAC-A) - capable 1/4" carbons, rated 3/16" carbons 
General specificationsInput PowerDiesel Fuel
Rated Output

300 A, 32 VDC, 100% Duty Cycle

350 A, 27 VDC, 100% Duty Cycle

400 A, 24 VDC, 100% Duty Cycle

Welding Amperage RangeStick/TIG: 20-400 A
MIG/FCAW: 14-40 V
Net WeightKubota: 950 lb. (431 kg)
Mitsubishi: 993 lb. (450 kg)
Generator Power 104DegF
Peak: 12,000 watts
Continuous: 10,000 watts
MaxOpenCircuitVoltage
85 VDC
Engine
Kubota V1505, 4-Cylinder, Liquid-Cooled Industrial Diesel Engine, 20.2 HP, 1500-1800 RPM, EPA Tier 4 Compliant.
 
Mitsubishi S4L2, 4-Cylinder, Liquid-Cooled Industrial Diesel Engine, 24.7 HP, 1500-1800 RPM, EPA Tier 4 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
Kubota: 71.6 dB (96 Lwa)
Mitsubishi: 72.1 dB (97 Lwa)
ApplicationsConstruction 
Fabrication 
Field Maintenance and Repair 
Mechanical Contracting 
Rental 

Models

Stock # Manufacturer List Price US$    
  Big Blue 400 Pro (Mitsubishi)  907605 $14,650.00  
  BIG BLUE 400 PRO (KUBOTA)  907606 $14,440.00  
       

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 $2981.00  

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 $2062.00  
 View Accessories for OFR-224 Trailer   
 View Accessories for OFR-224 Trailer   
 DUAL HITCH,2"BALL/3"LUNETTE EYE300831$225.00 Buy Now
 FENDER KIT (224 TRAILER)300160$320.00  
 Cable Tree043826$202.00  
    

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 $2426.00  
 View Accessories for Hwy-224 Trailer   
 View Accessories for Hwy-224 Trailer   
 DUAL HITCH,2"BALL/3"LUNETTE EYE300831$225.00 Buy Now
 FENDER KIT (224 TRAILER)300160$320.00  
 Cable Tree043826$202.00  
    

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 $735.00  
 

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  
 

KIT,FILTER MITSUBISHI (S4L2) EFF W/ MA250132E

252782 $82.22  
 

KIT,FILTER KUBOTA V1505

253901 $47.59  

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

Adapter Cord, Full KVA (Field)

NEMA 14-50P to NEMA 6-50R. Adapts engine drive 120/240 V plug to common Millermatic and Spectrum 240 V plug.

300517 $73.00 Buy Now
 

SPARK ARRESTOR,MUFFLER

300585 $225.00  
 

KIT,ADAPTER WIRELESS REMOTE ANTENNA

300749 $89.00  
 

DUAL HITCH,2"BALL/3"LUNETTE EYE

300831 $225.00 Buy Now
 

SuitCase® X-TREME™ 12VS, Bernard ™ BTB 300 A Gun Pkg

951543 $2496.00  
 View Accessories for SuitCase® X-TREME™ 12VS, Bernard ™ BTB 300 A Gun Pkg   
 View Accessories for SuitCase® X-TREME™ 12VS, Bernard ™ BTB 300 A Gun Pkg   
 ROLL,DRIVE VK GROOVE .035 WIRE132958$36.78  
 ROLL,DRIVE U GROOVE .045 WIRE COGGED083489$39.15  
 ROLL,DRIVE VK GROOVE 5/64 WIRE132960$36.78  
 ROLL,DRIVE U GROOVE 5/64 WIRE COGGED053710$36.58  
 ROLL,DRIVE VK GROOVE .052 WIRE132956$37.32  
 ROLL,DRIVE V GROOVE .035 WIRE053700$18.38  
 ROLL,DRIVE V GROOVE 1/16 WIRE053699$19.79  
 ROLL,DRIVE V GROOVE .045 WIRE053697$18.56  
 FC-1260 Ironmate™ Gun, 350 Amps, 15 ft195729$369.81  
 ROLL,DRIVE U GROOVE .052 WIRE COGGED083490$36.93  
 ROLL,DRIVE VK GROOVE .045 WIRE132957$34.71  
 MIGmatic™ M-25, 250 A, 15 ft, .035-.045 wire169599$388.31 Buy Now
 FC-1260 Ironmate™ Gun, 350 A, 10 ft195732$322.53  
 ROLL,DRIVE U GROOVE 5/64 WIRE053704$21.50  
 ROLL,DRIVE V GROOVE .040 WIRE053696$20.05  
 ROLL,DRIVE VK GROOVE .068-.072 WIRE132959$37.49  
 ROLL,DRIVE U GROOVE .035 WIRE072000$19.82  
 ROLL,DRIVE V GROOVE .023 WIRE087130$20.29  
 ROLL,DRIVE V GROOVE .030 WIRE053695$19.19  
 ROLL,DRIVE VK GROOVE 1/16 WIRE132955$34.71  
 BERNARD TGX GUN, 260 AMP 15FT .045 WIREMXS2615-45$312.75  
 CUSTOMER CONFIGURED BERNARD GUN300703$657.00  
 ROLL,DRIVE U GROOVE 1/16 WIRE COGGED053708$35.88  
 Spool Adapter047141$88.00  
 ROLL,DRIVE U GROOVE 1/16 WIRE053706$20.98  
 DSS-9 Dual Schedule Switch, 15 ft071833$141.00 Buy Now
 BERNARD TGX GUN, 260 AMP 15FT .035 WIREMXS2615-35$312.75  
 BERNARD DURA-FLUX 350 AMP, 15FT 1/16-3/32 MILLERFLX3515AM$519.09  
 Customer Configured Bernard Gun (formerly Tregaskiss)300704$742.00  
 ROLL,DRIVE V GROOVE .052 WIRE053698$19.98  
 ROLL,DRIVE U GROOVE .047 WIRE053701$20.38  
 ROLL,DRIVE U GROOVE .052 WIRE053702$21.10  
    
 

SuitCase® X-TREME™ 8VS, Meters, Bernard™ BTB 300 A Gun Pkg

951582 $2281.00  
 View Accessories for SuitCase® X-TREME™ 8VS, Meters, Bernard™ BTB 300 A Gun Pkg    
 View Accessories for SuitCase® X-TREME™ 8VS, Meters, Bernard™ BTB 300 A Gun Pkg    
 ROLL,DRIVE VK GROOVE .035 WIRE132958$36.78  
 ROLL,DRIVE U GROOVE .045 WIRE COGGED083489$39.15  
 ROLL,DRIVE VK GROOVE 5/64 WIRE132960$36.78  
 ROLL,DRIVE U GROOVE 5/64 WIRE COGGED053710$36.58  
 ROLL,DRIVE VK GROOVE .052 WIRE132956$37.32  
 ROLL,DRIVE V GROOVE .035 WIRE053700$18.38  
 ROLL,DRIVE V GROOVE 1/16 WIRE053699$19.79  
 ROLL,DRIVE V GROOVE .045 WIRE053697$18.56  
 FC-1260 Ironmate™ Gun, 350 Amps, 15 ft195729$369.81  
 ROLL,DRIVE U GROOVE .052 WIRE COGGED083490$36.93  
 ROLL,DRIVE VK GROOVE .045 WIRE132957$34.71  
 MIGmatic™ M-25, 250 A, 15 ft, .035-.045 wire169599$388.31 Buy Now
 FC-1260 Ironmate™ Gun, 350 A, 10 ft195732$322.53  
 ROLL,DRIVE U GROOVE 5/64 WIRE053704$21.50  
 ROLL,DRIVE V GROOVE .040 WIRE053696$20.05  
 ROLL,DRIVE VK GROOVE .068-.072 WIRE132959$37.49  
 ROLL,DRIVE U GROOVE .035 WIRE072000$19.82  
 ROLL,DRIVE V GROOVE .023 WIRE087130$20.29  
 ROLL,DRIVE V GROOVE .030 WIRE053695$19.19  
 ROLL,DRIVE VK GROOVE 1/16 WIRE132955$34.71  
 BERNARD TGX GUN, 260 AMP 15FT .045 WIREMXS2615-45$312.75  
 CUSTOMER CONFIGURED BERNARD GUN300703$657.00  
 ROLL,DRIVE U GROOVE 1/16 WIRE COGGED053708$35.88  
 Spool Adapter047141$88.00  
 ROLL,DRIVE U GROOVE 1/16 WIRE053706$20.98  
 DSS-9 Dual Schedule Switch, 15 ft071833$141.00 Buy Now
 BERNARD TGX GUN, 260 AMP 15FT .035 WIREMXS2615-35$312.75  
 BERNARD DURA-FLUX 350 AMP, 15FT 1/16-3/32 MILLERFLX3515AM$519.09  
 Customer Configured Bernard Gun (formerly Tregaskiss)300704$742.00  
 ROLL,DRIVE V GROOVE .052 WIRE053698$19.98  
 ROLL,DRIVE U GROOVE .047 WIRE053701$20.38  
 ROLL,DRIVE U GROOVE .052 WIRE053702$21.10  
    

RHC-14 REMOTE HAND CONTROL W/CABLE 20 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 20 ft (6 m) cord and 14-pin plug.

242211020 $278.00  

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 $452.00  
       
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