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AMADA (THAILAND) CO., LTD.
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Production Goods
DC Inverter Welding Power Supply | Compact Design with High-Efficiency Welding Performance
Key Takeaways
• Continuous current output enables fast welding while reducing heat impact and power consumption
• Multiple control modes provide precise energy control
• Supports automated equipment and production line expansion
• Compact design delivers higher output than previous models
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The DC inverter welding power supply delivers continuous current for metal processing applications. It is suitable for automated welding systems and production lines requiring high stability and consistent quality.
🔷 DC Inverter System Concept and Advantages
Unlike AC systems, DC inverter systems provide uninterrupted current.
This enables stable heating, shorter welding time, reduced heat impact, and energy savings.
Compact transformer design supports integration into automated equipment.
🔷 Operating Principle
Inverter control precisely regulates DC current.
Heat input to the weld area can be adjusted continuously and accurately.
Multiple output stages support various welding processes.
🔷 Performance Features
• Compact design delivering 1.5 times the output of the IS-120B
• Detailed welding condition settings
• High flexibility through optional device integration
🔷 Control and Setting Functions
Supports six control modes:
• Primary-side constant current control (RMS)
• Secondary-side constant current control (RMS)
• Secondary-side constant power control (RMS)
• Primary-side peak constant current control
• Secondary-side constant voltage control (RMS)
• Fixed phase control
Independent output settings from the first to third energization stages.
Supports pulsation, up-slope, down-slope, and power-off control.
Pulse Limit function compensates for voltage fluctuations.
🔷 System Expansion and Automation
Supports transformer switching.
Up to five transformers can be connected when used with the MA-650A option.
Improves production cycle efficiency.
🔷 Quality Stabilization Functions
Equipped with an interrupt function for stable fusing.
Can be integrated with a Weld Checker featuring displacement monitoring.
Power output stops automatically when electrode movement reaches the set value.
🔷 Interface and Usability
Compatible with the MA-660A program unit (optional).
Color LCD displays current, voltage, and power.
Supports multiple languages: English, Japanese, Chinese, and Korean.
📘 Summary
The DC inverter welding power supply provides continuous output, precise control, and system scalability. It is ideal for automated welding and production environments requiring stable quality.
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❓ FAQ
Q1: What is the difference between DC inverter and AC systems?
A1: DC inverter systems provide continuous current without interruption.
Q2: Can multi-stage output be configured?
A2: Yes. Output can be set independently from the first to third energization stages.
📚 Glossary (Key Terms)
• DC inverter welding power supply: A welding power supply that delivers continuous DC current
• Pulse Limit: Pulse control function with voltage compensation
• Weld Checker: Welding inspection device with displacement monitoring
📖 Reference
Amada Micro Welding Machine & Welding Power Supply
Product Overview & Technical Description – AMADA (N/A)
(Internal Validation)
🔒 Trust
The technical information in this article has been verified by Mr. Kazutaka Suehiro of AMADA CO., LTD.
📆 Updated: 2026-01-16
Company Information
Industry Classification
Industrial machinery
Main 3 Products
Sheet Metal Fabrication Machines / Metal Cutting Machines / Micro Welding Systems
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Since our founding in 1946, the AMADA Group has continuously created and risen to challenges as a manufacturer of metalworking machinery and supported global manufacturing. With “Growing Together with ...
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