The Ralli Wolf RM40N MIG 400IJ is an industrial inverter welding machine designed for fabrication workshops and demanding metalworking applications. Featuring IGBT inverter technology, it delivers an adjustable welding current range of 50–400A for a wide variety of MIG welding tasks.
The machine features a separate 4-roll wire feeder to support consistent wire feeding and flexible positioning during welding operations. Its MIG and MMA welding facilities provide versatility for different welding requirements, while inductance control and adjustable operating modes help achieve stable arc performance, reduced spatter and quality weld formation.
Operating on a 415V three-phase power supply, the RM40N is suitable for medium and heavy fabrication, structural metalwork, boiler manufacturing and industrial maintenance.
Key Features
400A industrial MIG inverter welding machine
Advanced IGBT inverter technology
MIG and MMA welding facilities
Separate 4-roll wire feeder for reliable wire feeding
415V three-phase power supply
Adjustable welding current
Inductance control for improved welding performance
2T and 4T operating modes
Crater current and voltage control facility
Stable arc with minimal spatter
Energy-efficient operation
Compatible with 0.8mm, 1.0mm and 1.2mm MIG welding wire
Applications
Medium and heavy fabrication
Structural steel welding
Boiler fabrication
Petroleum industry fabrication
Chemical industry equipment manufacturing
Large iron structure manufacturing
Power generation equipment fabrication
Vehicle maintenance and repair
Industrial machinery repair
General metal fabrication
Technical Specifications
Specification
Details
Brand
Ralli Wolf
Model
RM40N
Welding Model
MIG 400IJ
Machine Type
Inverter MIG / MMA Welding Machine
Input Voltage
AC 415V ±15%
Phase
3-Phase
Frequency
50/60 Hz
Rated Input Current
21.1 A
Rated Input Power
15 kVA
Output Current Range
50–400 A
Rated Output Voltage
16.5–31.5 V
Duty Cycle
60%
Power Factor
0.93
Efficiency
85%
Wire Feeding Speed
2.5–18 m/min
Compatible Wire Diameter
0.8 / 1.0 / 1.2 mm
Output Cable Size
35+ mm²
Welding Processes
MIG and MMA
Inverter Technology
IGBT
Wire Feeder Type
Separate, 4-roll
Net Weight
Approx. 28 kg
Package Details
Ralli Wolf RM40N MIG 400IJ welding power source
Separate 4-roll wire feeder
MIG torch with cable
MMA electrode holder cable
Interconnection cable, CO₂ regulator/flowmeter and earthing cable with clamp, as supplied
