Description
The Aico Japan Portable Inverter Welding Machine (MMA-200 / MMA-200S) is a compact, high-efficiency stick welding machine designed for DIY hobbyists, light garage fabrication, and mobile maintenance professionals. Utilizing advanced IGBT technology, it delivers a smooth, controllable welding arc from a highly lightweight frame, bridging the gap between affordability and reliable workshop performance.
Product Overview & Design
Engineered primarily for MMA (Manual Metal Arc) / Stick welding, the Aico MMA-200 is built around a robust, impact-resistant housing featuring an ergonomic top handle and an adjustable shoulder strap for maximum mobility.
The front panel is designed for simple, user-friendly operation, pairing an analog control knob with a crisp digital LED display that shows real-time amperage adjustments. This makes it easy for both beginners and seasoned welders to match the exact settings needed for different metal thicknesses.
Core Technical Specifications
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Technology: Advanced IGBT Inverter Modules
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Power Input: Single Phase AC 220V–240V (50/60 Hz)
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Max Input Power: ~4.5 KVA to 6.0 KVA
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Output Current Range: 20A – 200A (Fully Adjustable)
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Duty Cycle: 60% @ 40°C (Ensures 6 minutes of continuous high-power welding out of a 10-minute cycle)
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No-Load Voltage: 58V – 60V
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Supported Electrode Sizes: Ideal for 2.5mm and 3.2mm welding rods (can strike 4.0mm for brief intervals)
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Weight: ~4.5 kg to 6.0 kg (Highly portable)
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Protection Rating: IP21S Class / Insulation Class F
Performance Highlights
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High Energy Efficiency: Boasting a high power factor (0.93) and over 85% efficiency, the inverter system draws considerably less power than traditional transformer-based welders, keeping electricity costs down and allowing stable operation when run off a proper backup generator.
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Optimized Arc Control: Features built-in automatic current compensation alongside intelligent features like Hot Start (for easy arc striking without sticking) and Anti-Stick (which reduces spatter and drops current if the rod binds to the metal).
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Thermal Protection: A built-in high-speed cooling fan combined with a multi-air duct layout ensures rapid heat dissipation. Automatic internal protection circuitry cuts the current if over-voltage or overheating is detected, safeguarding the internal electronics.
Applications & Versatility
The machine is optimized for welding carbon steel, mild steel, cast iron, and stainless steel. It is highly favored for:
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Home DIY projects, gate, and window grille repairs.
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On-site agricultural equipment maintenance.
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Light-gauge structural steel fabrication.
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Vocational school training and workshop maintenance.





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