Royce MMA-400S Inverter Welding Machine shown in the image is a heavy-duty portable electric arc welder.
Technical Specifications
Model: MMA-400S (also categorized under the RAC-400 series)
Welding Process: MMA / ARC / Stick Welding
Inverter Technology: Advanced IGBT Inverter Technology (Insulated-Gate Bipolar Transistor)
Operating Current Range: 20A – 200A adjustable (with a maximum peak output rating listed up to 400A)
Input Voltage: 220V – 230V AC (Single Phase)
Frequency: 50 / 60 Hz
Input Capacity: 8.7 KVA
Electrode Compatibility: Supports rod sizes from 1.6 mm up to 5.0 mm
Working Efficiency: ~85% with low no-load loss
Duty Cycle: High duty cycle (typically cited at 60% when operating under full load at 40°C)