Transistor-controlled Welding Power Supply
Power Supply - Transistor Type
MDA/MDB Series
Main Features
Main Features
- Fast current rises
Since the welding current rises 4.5 times faster than that with the *conventional welders, high quality welding can be accomplished in a short period of time on small work pieces.* Compared with the conventional model MD-1500E. - No welding transformer needed
The welding current is directly controlled with fast switching by transistor, so no welding transformer is required. - Three control types to choose from
You can choose from three types of control – “constant current,” “constant voltage,” or “constant voltage and current” – to suit the workpieces. - Built-in pre-check function
Applying current on the workpiece before the main current, it is possible to judge whether or not there is a workpiece set on the electrodes, and to evaluate the status of workpiece. - Polarity switchable type
This can eliminate the Peltier effect (polarity effect) and provide uniform nugget diameters on series welding. - Two-channel type
With this type, it can reduce the cast and save some spaces for time difference welding.
Fast Current Rises
Polarity Switchable Type
Space Saving
Product Specifications
| Model | MDA-1000B | MDA-4000B | MDA-8000B |
|---|---|---|---|
| Type | Standard type | ||
| Power requirement | Single-phase, 100 to 120VAC or single-phase, 200~240VAC (50/60Hz) | ||
| Maximum weld current | 1500 | 5000 | 9990 |
| Control method | Constant current control / constant voltage control / constant current and voltage control | ||
| Maximum power consumption | 300 | 300 | 350 |
| Timer setting | 31 schedules | ||
| Cooling | Air cooling | ||
| Dimensions (mm) * 5 | 172*390*269 | 172*390*400 | |
| Mass (kg) | 15 | 18 | 28 |