The royce welding machine 400s is a heavy-duty inverter welding machine designed mainly for mma (manual metal arc/stick) welding. it is commonly used in fabrication workshops, construction sites, metal repair, and industrial welding applications.
specifications
mma-400s / rac-400
welding type
mma (manual metal arc / stick welding)
technology
advanced igbt inverter technology
input voltage
220v – 230v ac
frequency
50 – 60 hz
input capacity
8.7 kva
current range
20a – 400a
realistic working current
about 20a – 200a continuous
duty cycle
60% at full load (40°c), up to 100% under normal conditions
electrode size
1.6mm – 5.0mm
efficiency
approximately 85%
cooling system
fan-cooled