Standard: MD-A8000B MD-A4000B MD-A1000B Polarity switchable: MD-B4000B MD-B2000B Two channels: MD-C2000B
MD-A8000B/MD-A4000B/MD-A1000B
MD-B4000B/MD-B2000B/MD-C2000B
Features
- ■ Fast current rises.
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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
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The welding current is directly controlled with fast switching by transistor, so no welding transformer is required.
- ■ Three control types to choose from
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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
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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
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This can eliminate the Peltier effect (polarity effect) and provide uniform nugget diameters on series welding.
- ■ Two-channel type
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With this type, it can reduce the cast and save some spaces for time difference welding.
Specifications
| Model | MD-A8000B | MD-A4000B | MD-A1000B | |
| Type | Standard type | |||
| Power requirements | Single-phase, 100 to 120VAC or single-phase, 200 to 240VAC 50/60Hz | |||
| Maximum power consumption | 350W | 300W | 300W | |
| Maximum weld current | 9990A | 5000A | 1500A | |
| Maximum weld voltage | 30V | |||
| Control method | Constant current control / constant voltage control / constant current and voltage control | |||
| Timer setting (31 schedules) |
Squeeze | 000 to 999(000 to 999)×10ms | 000 to 999ms | |
| Precheck welding | 0.00 to 1.00ms | |||
| Precheck evaluation time | 2ms (Fixed) | |||
| Upslope | 0.00 to 9.99ms (Included in weld) *1 (Included in weld 1) *2 | |||
| Weld (1-step welding mode) / Weld 1,2 (2-step welding mode) |
0.00 to 9.99ms | |||
| Cool (for 2-step welding mode only) | 0.00 to 9.99ms | |||
| Downslope | 0.00 to 9.99ms (Included in weld) *1 (Included in weld 2) *2 | |||
| Hold | 000 to 999ms | |||
| Dimensions (mm) *5 | 172（W）×390（D）×400(H） | 172（W）×390（D）×269（H） | ||
| Mass | 28kg | 18kg | 15kg | |
*1: 1-step welding mode
*2: 2-step welding mode
| Model | MD-B4000B | MD-B2000B | MD-C2000B | |
| Type | Polarity switching type | Two-channel type | ||
| Power requirements | Single-phase, 100 to 120VAC or single-phase, 200 to 240VAC 50/60Hz |
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| Maximum power consumption | 350W | 300W | ||
| Maximum weld current | 5000A | 3000A | ||
| Maximum weld voltage | 30V | |||
| Control method | Constant current control type / constant voltage control type / constant current and voltage control type | |||
| Timer setting (31 schedules) |
Squeeze | 000 to 999(000～999)×10ms | 000 to 999ms | |
| Precheck welding | 0.00 to 1.00ms | |||
| Precheck evaluation time | 2ms (Fixed) | |||
| Upslope | 0.00 to 9.99ms (Included in weld) *1 (Included in weld 1) *2 | |||
| Weld (1-step welding mode) / Weld 1,2 (2-step welding mode) |
0.00 to 9.99ms | |||
| Cool (for 2-step welding mode only) | 0.00 to 9.99ms | |||
| Downslope | 0.00 to 9.99ms (Included in weld) *1 (Included in weld 2) *2 | |||
| Hold | 000 to 999ms | |||
| Monitor display | Weld 1 and 2 (Average current / average voltage), weld 1 and 2 (Peak current / peak voltage), weld 1 and 2 (Average power / average resistance), current, voltage, power, resistance waveform, schedule number |
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| Dimensions (mm) *5 | 172(W)×390(D)×400(H) | 172（W）×390（D）×269（H） | ||
| Mass | 28kg | 18kg | ||
*1: 1-step welding mode
*2: 2-step welding mode
*Specifications subject to change without notice.
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