Miller Big Blue 500 Pro Kubota Welder/Generator (907736)

Step up to the Big Blue 500 Pro and the Kubota engine moves to the heavy-duty T4i diesel, which Miller counts among the cleanest diesel options available: a diesel oxidation catalyst handles emissions without any exhaust aftertreatment maintenance to schedule. Output tops out at 500 amps DC, with the duty cycle rated 100% at 400A at 36V and 100% at 500A at 40V, across Stick, MIG, Flux-Cored, and TIG.

Reading the engine at a glance

One electronic display covers the Kubota's vital signs at once: fuel, hours, coolant heat, oil pressure, battery condition, and RPM, and the same screen tracks when the next oil change is due and surfaces diagnostics a technician can read before ever opening a panel.

Generator capacity

• 27,000 peak watts available on three-phase circuits
• 15,000 watts available on single-phase circuits
• 20,000 watts of continuous three-phase output

A 14-pin receptacle with auto-remote sense pairs with Miller feeders without extra wiring, and the panel adds an industrial USB port, low OCV Stick, and adjustable hot start, output control, and auto-idle to cut fuel use between passes. At 1,800 lbs this trailer-mounted or skid-mounted machine suits Industrial and Heavy Industrial shops running Career Welder-level crews, and it ships with a manufacturer's warranty.

What cuts the maintenance on the diesel engine? The T4i engine's oxidation catalyst controls emissions without added exhaust aftertreatment service. Can it run on single-phase power? Yes, though the 27,000-watt peak and 20,000-watt continuous figures are for three-phase; single-phase tops out at 15,000 watts.

Specifications