Ralli Wolf RM50 MIG 500IJ 500A Heavy Duty IGBT Inverter Welding Machine with Separated 4-Roll Wire Feeder and MMA Welding Facility – 415V 3-Phase
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The Ralli Wolf RM50 MIG 500IJ is a heavy-duty industrial inverter welding machine designed for medium and heavy fabrication applications. Powered by advanced IGBT inverter technology, it delivers up to 500A welding output for demanding metalworking and industrial welding operations.
Featuring a separated 4-roll wire feeder, this machine supports consistent wire feeding and flexible positioning during welding. Its dual MIG and MMA welding facilities provide versatility for different welding requirements, while adjustable 2T/4T operating modes and crater current and voltage controls help achieve improved welding control and finish.
Operating on a 415V three-phase power supply, the Ralli Wolf RM50 is suitable for fabrication workshops, boiler manufacturing, structural steelwork, and heavy industrial applications.
Key Features
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500A-class heavy-duty MIG inverter welding machine
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Advanced IGBT inverter technology
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MIG and MMA welding facilities
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Separate 4-roll wire feeder for improved wire traction
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Adjustable 2T and 4T welding modes
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Preset digital display
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Adjustable crater current and voltage controls
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Stable arc performance with reduced spatter
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High power factor of 0.93
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Energy-efficient operation
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Supports compatible MIG wire diameters up to 1.6mm
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Designed for medium and heavy fabrication work
Applications
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Heavy industrial fabrication
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Structural steel welding
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Boiler fabrication
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Large iron structure manufacturing
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Petroleum and chemical industries
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Power generation equipment manufacturing
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Heavy machinery manufacturing and repair
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Industrial maintenance workshops
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General metal fabrication
Technical Specifications
| Specification | Details |
|---|---|
| Brand | Ralli Wolf |
| Model | RM50 |
| Welding Model | MIG 500IJ |
| Machine Type | Inverter MIG/MMA Welding Machine |
| Input Voltage | AC 415V ±15% |
| Phase | Three Phase |
| Frequency | 50/60 Hz |
| Rated Input Current | 35.1A |
| Rated Input Power | 25.3 kVA |
| Output Current Range | 50–500A |
| Rated Output Voltage | 16.5–50V |
| Duty Cycle | 60% |
| Power Factor | 0.93 |
| Efficiency | 85% |
| Wire Feeding Speed | 2.5–16.2 m/min |
| Compatible Wire Diameter | 1.0 / 1.2 / 1.6 mm |
| Output Cable Size | 50+ mm² |
| Welding Processes | MIG and MMA |
| Inverter Technology | IGBT |
| Wire Feeder Type | Separate, 4-roll |
| Approximate Net Weight | 42 kg |
Package Details
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Ralli Wolf RM50 MIG 500IJ welding power source
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Separate wire feeder unit
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MIG torch cable
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MMA electrode holder cable
Confirm the final accessory list with the supplier before publishing.

















