Big Blue® 500 Pro (Kubota)

The Big Blue® 500 Pro (Kubota) is a clean, quiet, multiprocess engine‑driven welder delivering up to 500 A of output with an EPA Tier 4 Final diesel engine, ideal for heavy‑use mobile fabrication and MRO applications.

Key Features

• Dynamic DIG™ for adaptive short‑clearing current
• Quiet operation for improved site communication
• SunVision™ digital meters viewable in direct sunlight
• Electronic engine display showing fuel, coolant, oil, battery, and RPM data
• Industrial USB port for software updates and log retrieval
• Heavy‑duty low‑speed Kubota V2403 diesel engine with DOC emissions technology
• Adaptive Hot Start™, Infinite Arc Control, Lift‑Arc™ TIG, Low OCV Stick (VRD)
• Auto Remote Sense™ (ARS) for automatic remote control detection
• HD powder‑coat finish with zinc‑rich primer for corrosion resistance

Specifications

• Amperage range: 20 A – 500 A
• Rated output: 400 A @ 36 V, 450 A @ 38 V, 500 A @ 40 V (100 % duty cycle)
• Fuel tank size: 25 gal (diesel)
• Horsepower: 48.9 hp
• Engine idle speed: 1 350 RPM
• Engine weld speed: 1 800 RPM
• Net dimensions (W × H × L): 28.5 in × 46 in × 69.5 in
• Net weight: 1 750 lb
• Sound rating: Idle 65.9 dB (90.7 Lwa), Weld 74.3 dB (99.1 Lwa)
• Single‑phase auxiliary continuous power: 12 000 W
• Single‑phase auxiliary peak power: 15 000 W
• Three‑phase auxiliary continuous power: 20 000 W
• Three‑phase auxiliary peak power: 27 000 W

Applications

• Mobile fabrication & MRO
• Process pipe welding
• Structural welding