Big Blue® 800 Duo Pro

The most powerful T4F diesel engine‑driven welder in the industry, offering robust welding output and auxiliary power for dual‑operator, space‑constrained job sites.

Key Features

• Dual independent arcs delivering up to 400 A each (800 A single‑operator) with ArcReach® remote control.
• Dynamic DIG™ technology for adaptive short‑clearing current.
• Integrated Electronic Engine Display showing fuel level, engine hours, coolant temperature, oil pressure, battery volts, and RPM.
• ArcReach Heater compatibility for induction pre‑heat up to 600 °F.
• Industrial USB port for software updates and diagnostics.
• Heavy‑duty low‑speed DEUTZ T4F diesel engine with fuel‑efficient operation.

Specifications

• Amperage Range: 20 A – 800 A
• Output Voltage: Up to 44 V (CC) / 40 V (CV) depending on mode
• Fuel Type: Diesel, 25 gal tank
• Engine: DEUTZ® T4F, 65.7 hp
• Weight: 1870 lb
• Dimensions (L×W×H): 69.5 in × 28.5 in × 46 in
• Auxiliary Power: 12 kW (120 V) / 20 kW (3‑phase)
• Sound Rating: Idle 71.3 dB / Weld 78.9 dB

Applications

• Mobile fabrication & MRO
• Pipe processing
• Construction & fabrication
• Mining and railcar industries