Deutz Powered 400A Dual Operator Diesel Welder Generator 20kW Auxiliary Power for Pipeline Construction Mining

• Dual Operator Independent Output Two separate welding circuits allow simultaneous operation by two welders, each with fully independent current adjustment from 30A to 400A. This doubles on-site welding throughput and significantly reduces project completion time for pipeline girth welding, structural assembly, and heavy fabrication tasks.
• Deutz Turbocharged Diesel Engine The 4-cylinder, water-cooled Deutz diesel engine delivers exceptional fuel efficiency and extended service intervals. Turbocharged air intake ensures consistent power output even at high altitudes and in high-temperature environments, common challenges in mining and pipeline construction sites.
• Advanced IGBT Inverter Technology The welding system employs IGBT-based inverter control with PWM modulation, producing exceptionally stable arc characteristics with less than 1% current fluctuation. This ensures superior weld bead appearance, minimal spatter, and excellent penetration across the full 30A to 400A range for each operator.
• Multi-Process Welding Capability Each operator channel supports MMA (stick), TIG (lift arc), FCAW (flux-cored), and carbon arc gouging processes up to 8.0mm electrode diameter. The 75V open circuit voltage provides excellent arc starting and maintaining performance, even with low-hydrogen basic electrodes commonly used in pipeline welding.
• Robust 20kW Auxiliary Generator A brushless AVR-regulated alternator delivers clean three-phase 400V/20kW and single-phase 230V/7kW power, enabling simultaneous operation of job site tools, lighting, and auxiliary equipment without interrupting welding operations. The excitation system maintains voltage regulation within ±1% under varying load conditions.
• All-Weather Heavy-Duty Construction The canopy and base frame are fabricated from heavy-gauge steel with a three-layer anti-corrosion coating system rated for outdoor exposure. IP23 protection rating ensures reliable operation in rain, dust, and harsh industrial environments. Integrated lifting eyes and forklift pockets facilitate safe transport across job sites.
• Extended Runtime Fuel System An 80-liter integrated fuel tank provides over 12 hours of continuous operation at 60% duty cycle without refueling. The fuel system includes a water separator, dual-stage filtration, and a manual priming pump for reliable cold-start performance in remote locations with varying fuel quality.

The GNAW400DZ dual operator diesel welder generator is engineered for the most demanding field welding applications across multiple heavy industries.