These machines employ resonant high frequency IGBT inverter technology. Due to soft switching scheme, these machines are very rugged and efficient. Currently 200A model in single-phase, and 200A, 250A, 400A, 500A, 600A models in 3 phases are available. All these models are available for manual metal arc welding (MMAW), tungsten insulated gas (TIG) welding, and metal gas insulated (MIG) welding processes. All the TIG machines have built in high frequency igniter circuit for non contact arc initiation. All TIG and MIG welding machines can work as MMAW machines with a flip of the toggle switch situated on the front panel All these welding machines have special feature to shut down the internal electronic circuit when machine is kept idle, this feature enhances the life time of machines.
All single phase machines are protected to withstand accidental 2-phase (415V ac) connection at the input. In the event of such accidental connection, an alarm is sounded and the internal electronics is shut off. All 3-Phase machines can work on 2 phases 70% of their maximum current ratings.
Rugged IGBT Inverter Technology
Good Weld Quality
Low Spattering
Compact and Light Weight
Low Cost
High Efficiency
Fully Protected
Auto shut down
MMAW Machines | TIG/MMAW Machines | MIG/MMAW Machines |
---|---|---|
1-Phase , 200 A, MMAW | 1-Phase, 200 A, TIG/MMAW | |
3-Phase, 200 A, MMAW | 3-Phase, 200 A, TIG/MMAW | 3-Phase, 200 A, MIG/MMAW |
3-Phase, 250 A MMAW | 3-Phase , 400A TIG/MMAW | 3-Phase, 400 A, MIG/MMAW |
3-Phase , 400A MMAW | 3-Phase, 500 A TIG/MMAW | 3-Phase, 500 A, MIG/MMAW |
3-Phase, 500 A MMAW | 3-phase, 600A TIG/MMAW | 3-Phase, 600 A, MIG/MMAW |
3-phase, 600A MMAW |
National Power Research Laboratory
Plot no. 74B & 78A, Industrial Area (Extn.)
Rau, Indore-453331, INDIA.
Mobile: +91-8827916878
Phone: +91-731-285-7347
Email: info@nprlab.com