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Miller Electric Mfg. LLC. - Big Blue 400 Pro Welding

Designed with the professional in mind, the Big Blue 400 Pro is the best for ease of use, reliability and fuel economy. Designed to operate over 10,000 hours before the first basic overhaul. Backed by worldwide support and service.

Features & Benefits

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.


Key Specifications
Industries Interests Construction Fabrication Infrastructure Maintenance and Repair - Field Operations Mechanical Contracting Pipe Fabrication / Construction Work / Service Trucks
Net Weight 950 lbs
Engine Weld Speed 1800 RPM
Horsepower 20.2 hp
Weldable Metals Steel, Stainless Steel
Rated Output 400 A at 24 V, 100% Duty Cycle

Company Info

1635 W. Spencer St.
Appleton, WI
US, 54912-1079


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