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

Ralli Wolf RM40N MIG 400IJ 400A Heavy Duty IGBT Inverter Welding Machine with Separate 4-Roll Wire Feeder and MMA Facility – 415V 3-Phase

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