Esab 0558-102739 Multi-process Welder 850 Amp

Product Description

The ESAB 0558-102739 is a heavy-duty multi-process welding system built around the Warrior 750i inverter platform paired with the RobustFeed PRO wire feeder. It delivers up to 850 amps of output capacity, supporting MIG, stick, and arc gouging processes in a single package. The inverter-based design improves energy efficiency over transformer-based machines while maintaining stable arc performance across a wide input voltage range. It is designed for professional welders and industrial contractors who need a portable, durable system capable of sustained high-amperage output in demanding field or shop environments.

The Warrior 750i with RobustFeed PRO is suited for heavy fabrication, structural steel, shipbuilding, and industrial maintenance applications where long continuous runs are required. The system supports arc gouging with electrodes up to 0.5 inches, making it a practical choice for weld prep and removal work. The weatherproof enclosed design allows deployment in outdoor environments and rough job site conditions. Glove-friendly controls and a clear user interface reduce setup time for crews working across multiple shift changes or rotating operators.

Key Features

• Output up to 850 amps for high-amperage welding and gouging applications
• 820 amps at 60 percent duty cycle and 750 amps at 100 percent duty cycle for sustained long runs
• Supports arc gouging with electrodes up to 0.5 inches diameter
• Inverter technology delivers energy efficiency and stable arc performance
• Weatherproof, enclosed RobustFeed PRO design rated for outdoor and indoor use in rough environments
• Wide input voltage range accommodates regional power supply variations
• Glove-friendly knobs and intuitive interface for fast operator setup

Compatibility

Designed as a complete multi-process package integrating the Warrior 750i power source with the Arcair RobustFeed PRO wire feeder for heavy-duty MIG, stick, and gouging operations.

Installation Notes

Installation and commissioning of this equipment should be performed by a qualified electrician and a certified welder familiar with high-amperage industrial welding systems. Disconnect and lock out all input power before making any electrical connections or servicing internal components. Verify that the input supply voltage and ampacity match the machine specifications before energizing. Follow applicable NFPA 70 (NEC) and AWS safety standards for welding equipment installation and operation.

Technical Specifications

• Maximum Output: 850 amps
• Duty Cycle Output: 820 amps at 60 percent, 750 amps at 100 percent
• Maximum Gouging Electrode Diameter: 0.5 inches
• Input Voltage: Wide input voltage range (multi-regional)
• Process Types: Multi-process (MIG, stick, arc gouging)
• Unit of Measure: Each
• UPC: 662067218578

Standard Information

• Brand: ESAB
• Manufacturer Part Number: 0558-102739