Digital Heavy Strong MMA / TIG 402 Pulse Inverter Welding Machine
By Hyunald Electric Weld – Leading Manufacturer & Supplier of
Digital Heavy Strong MMA / TIG 402 Pulse Inverter Welding Machine
Category: Digital Heavy ARC TIG Inverter Welding Machine
The STRONG MMA / TIG 402 PULSE by Hyunald Electric Weld is a high-performance digital ARC and TIG inverter welding machine, designed for heavy industrial applications requiring precision, durability, and control. Powered by advanced IGBT inverter technology, this 402A welding system delivers a stable arc, accurate pulse control, and efficient operation, making it ideal for industries like pressure vessel manufacturing, structural welding, railways, oil & gas, and plant maintenance.
Its dual welding capabilities (MMA & DC TIG), digital interface, and pulse functionality provide welders with maximum flexibility and control — even in the most demanding conditions.
Features & Benefits -
- Dual Welding Modes - Supports both TIG (DC) and MMA (Stick) welding operations .
- Pulse TIG Function – Adjustable pulse frequency and current for precise heat control and clean welds.
- Advanced IGBT Technology - Ensures arc stability, energy savings, and long service life.
- Digital Control Panel - Intuitive settings for current, voltage, pulse, and timing parameters.
- High-Frequency Arc Start - Smooth, contactless arc starting for better tungsten protection.
- Heavy Duty Design - Built to perform in industrial environments with high duty cycles.
- Protection Systems - Overload, over-voltage, and thermal protection for safety and machine durability.
- Efficient Cooling System - : Industrial-grade air cooling for long welding operations without overheating.
Applications -
- Heavy Structural Fabrication .
- Pipe Welding & Boiler Construction
- Railways, Shipyards & Power Plants
- Pressure Vessel & Tank Welding
- Repair & Maintenance of Heavy Equipment
- Industrial TIG Welding for Steel & Stainless Steel
Technical Specifications -
| Model | STRONG MMA/TIG 402 PULSE |
| Category | Digital Heavy ARC TIG Inverter Welding Machine |
| Input Voltage | 415V ±10%, 3 Phase, 50/60Hz |
| Rated Input Power | 15.5 kVA |
| Output Current (TIG) | 20A – 402A |
| Output Current (MMA) | 30A – 402A |
| No-load Voltage | 75V |
| Duty Cycle | 80% @ 402A |
| Pulse Frequency | 0.5 – 300 Hz |
| Base/Peak Current Control | Yes (Digital Adjustment) |
| Efficiency | ≥ 89% |
| Power Factor | 0.95 |
| Cooling System | Forced air cooling with high-speed fan |
| Insulation Class | H |
| Protection Class | IP23 |
| Weight | 38 – 42 kg (approx.) |
| Dimensions (L×W×H) | 580 × 320 × 480 mm (approx.) |
Hyunald Electric Weld – Trusted Manufacturer & Supplier
Hyunald Electric Weld is a leading Indian manufacturer and supplier of digital heavy-duty welding machines, providing innovative and reliable welding solutions for industrial sectors. The STRONG MMA / TIG 402 PULSE is engineered for performance, safety, and efficiency — making it a top choice for professional welders and large-scale fabricators.
