Polar switchable type:MDB-4000B.MDB-2000B

Clean fine finish in a short time of welding.
Model : Standard: MDA-8000B MDA-4000B MDA-1000B Polarity switchable: MDB-4000B MDB-2000B Two channels: M

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  • 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.

Model MDA-8000B MDA-4000B MDA-1000B
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 - 999ms /
000 - 999ms X 10
000 - 999ms
Precheck welding 0.00 - 1.00ms
Precheck evaluation time 2ms (Fixed)
Upslope 0.00 - 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 - 9.99ms
Cool (for 2-step welding mode only) 0.00 - 9.99ms
Downslope 0.00 - 9.99ms (Included in weld) *1 (Included in weld 2) *2
Hold 000 - 999ms
Dimensions (mm) *5 172(W) X 390(D) X 400(H) 172(W) X 390(D) X 269(H)
Mass 28kg 18kg 15kg
  • *1: 1-step welding mode
  • *2: 2-step welding mode

Specifications subject to change without notice.

Model MDB-4000B MDB-2000B MDC-2000B
Type Polarity switching type Two-channel type
Power requirements Single-phase, 100 to 120VAC or single-phase,
200 to 240VAC 50/60Hz
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 - 999ms /
000 - 999ms X 10
000 - 999ms
Precheck welding 0.00 - 1.00ms
Precheck evaluation time 2ms (Fixed)
Upslope 0.00 - 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 - 9.99ms
Cool (for 2-step welding mode only) 0.00 - 9.99ms
Downslope 0.00 - 9.99ms (Included in weld) *1 (Included in weld 2) *2
Hold 000 - 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
Dimensions (mm) *5 172(W) X 390(D) X 400(H) 172(W) X 390(D) X 269(H))
Mass 28kg 18kg
  • *1: 1-step welding mode
  • *2: 2-step welding mode

Specifications subject to change without notice.

  • MDA-4000B MDA-1000B MDB-2000B MDC-2000B

    mda-4000b-en.gif

  • MDA-8000B MDB-4000B

    mda-8000b-en.gif