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OTC MRA-630
DC welding machine with digital control, up to 630A current, and gouging function, ideal for welding low-carbon steel to copper alloys.
PRODUCT SPECIFICATION
Microprocessor Controlled DC Arc System
OTC DAIHEN® MRA-630
OTC MRA-630 Heavy-Duty DC Welding Machine
Industrial Powerhouse • 630A High-Capacity Platform
The OTC MRA-630 is a high-performance, digitally controlled DC welding machine engineered for the most demanding industrial environments. Utilizing advanced microprocessor technology, this unit delivers a remarkably stable arc with minimal spatter, ensuring high-quality, professional-grade welds across a diverse spectrum of metals and heavy-duty applications.
Key Features
- Advanced Digital Control: Microprocessor-based system provides unmatched precision over welding parameters.
- Carbon Arc Gouging: Integrated capability to handle heavy gouging tasks, significantly enhancing versatility.
- Broad Material Support: Handles everything from low-carbon and high-strength steels to stainless steel and copper alloys.
- Robust Safety Suite: Engineered with multiple protection functions for operator security and easier maintenance.
Operational Advantages
- Extreme Output: Massive 630A capacity enables welding of the thickest sections in heavy manufacturing.
- Continuous Duty: 60% rated duty cycle supports long, high-intensity shifts without thermal downtime.
- Industrial Versatility: Perfectly suited for the rigorous demands of shipbuilding, infrastructure, and machinery repair.
- Durability: Built to thrive in harsh, high-output industrial fabrication shops.
Technical Specifications
| Rated Output | 630 A |
| Output Range | 60 – 630 A |
| Duty Cycle | 60% |
| No-load Voltage | 82 V |
| Weight | 232 kg |
Infrastructure Requirements
| Input Voltage | 3-Phase 380V ±10% |
| Input Capacity | 49.7 kVA (36.8 kW) |
| Frequency | 50/60 Hz |
| Dimensions (WxDxH) | 508 x 724 x 894 mm |
Target Industrial Applications
The MRA-630 is the professional choice for heavy fabrication in:
Shipbuilding
Welding thick metal sections and marine plates.
Heavy Construction
Structural steel and high-load infrastructure.
Heavy Machinery
Manufacturing and repair of large-scale equipment.
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