WELDMAN WELDING MACHINE MMA400D
The Weldman MMA400D is a high-performance manual metal arc (MMA) welding machine designed for heavy-duty and industrial welding applications. It delivers stable welding output with excellent arc control and is suitable for welding mild steel, stainless steel, and other ferrous metals. Its robust construction ensures reliability, efficiency, and long service life in workshop or field environments.
Technical Specifications
| Parameter | Value / Description |
| Brand | Weldman |
| Model | MMA400D |
| Type | Manual Metal Arc (MMA) Welding Machine |
| Input Voltage | 380 V / 3 Phase AC |
| Output Current Range | 40 – 400 A |
| Duty Cycle | 60% @ 400 A |
| No-load Voltage | 70 – 80 V |
| Electrode Diameter Range | 2.5 – 5.0 mm |
| Welding Type | Stick/MMA welding |
| Efficiency | ~85% |
| Protection Class | IP21 or IP23 (depending on model) |
| Cooling | Forced air cooling |
| Weight | ~45 – 50 kg |
| Construction | Heavy-duty metal casing with durable finish |
| Applications | Industrial, workshop, construction, and maintenance welding |
Features & Advantages
High Output Range: Supports welding of thick and heavy steel sections.
Stable Arc Performance: Ensures smooth, consistent welds with minimal spatter.
Durable Build: Strong metal casing protects internal components in harsh environments.
Portable Design: Equipped with handles or wheels for easier transportation.
Safety Features: Thermal overload protection and voltage stabilization for safe operation.
Versatile Electrode Use: Compatible with a wide range of stick electrodes for MMA welding.
Usage Notes
Connect to a proper 3-phase power supply and ensure correct grounding.
Select the appropriate welding current based on electrode size and material thickness.
Wear proper protective gear including helmet, gloves, and protective clothing.
Allow adequate ventilation to prevent fumes accumulation.
Regularly inspect cables, clamps, and connections before use for safety and optimal performance.