Big Blue® 500 Pro Engine-Driven Welder | Miller - MillerWelds

Big Blue 500 Pro (Perkins)

Clean, quiet, Multiprocess machine delivers up to 500 amps of welding power with an EPA Tier 4 Final compliant engine ideal for heavy-use.
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Meter Maintenance Displays
Includes fuel level, oil pressure, coolant temperature and battery voltmeter.
Heavy-Duty Low-Speed Perkins Industrial Diesel Engine
Designed to operate over 10,000 hours before the first basic overhaul. Backed by worldwide support and service.
Infinite Arc Control
Infinite arc control allows the arc characteristics to be changed for specific applications in Stick, MIG and FCAW.
Low OCV Stick (VRD)
The Low OCV stick welding function is a simple design that reduces the open-circuit voltage to 15 volts when the welding power source is not in use without compromising arc starts.
Auto Remote Sense™ (ARS)
ARS detects if a remote control is plugged into the 14-pin receptacle and eliminates confusion of a remote/panel switch.
Thermal Overload Protection
Prevents machine damage if the duty cycle is exceeded or airflow is blocked.
The Vault
The Vault allows for the ultimate control board reliability in CC/CV models. Hardened solid-state control technology, housed in a sealed vault. The vault's sealed connections are made through watertight plugs that make these components impenetrable to dust and moisture.
Other Standard Features
Remote oil drain to prevent spills and make servicing easy, digital preset weld meters, automatic idle, and 120V block heater for cold environments.



Air Carbon Arc Cutting and Gouging (CAC-A)
Flux Cored (FCAW)
Stick (SMAW)

General Specifications

Title Big Blue 500 Pro (Perkins)
Industries Interests Construction
Maintenance and Repair - Field Operations
Work / Service Trucks
Cold Weather Starting Aids Engine Block Heater
Glow Plugs
Engine Brand Perkins
Engine Compliance T4F
Engine Idle Speed 1350 RPM
Engine Weld Speed 1800 RPM
Fuel Tank Size 25 Gallon
Fuel Type Diesel
Horsepower 32.6 hp
Weldable Metals Steel
Stainless Steel
Rated Output 400 A at 36 V, 100% duty cycle
Single Phase Generator Continuous Power 12000 W
Single Phase Generator Peak Power 15000 W
Sound Rating Idle: 63.4 dB / Weld: 72.2 dB
Three Phase Generator Continuous Power 15000 W
Three Phase Generator Peak Power 21000 W
Carbon Diameter 5/16 in (7.9 mm)
Current Type DC
Max Open Circuit Voltage 92 VDC
Net Width 28.5 in
Net Height 42 in
Net Length 65.125 in
Net Weight 1530 lbs
Warranty Engine Warranties
Miller's True Blue Warranty
Portability Lift Eye (Standard)
Trailer (Optional)
Fork Pockets
Weld Output CC / CV