• MID-70C


Perfect solution for fusing of electric device and for welding of covered wire!
Model : MID-70C

  • Easy setting at the front panel.
  • Eight levels of weld current frequency: 50 to 250Hz
  • Up to thirty one weld schedules to support multi welding conditions.

    Since registered weld schedule can be loaded with one key operation, work efficiency has been improved.

  • Weld current monitoring feature.

    Actual weld current can be monitored so as to ensure it to stay in the preset range.

  • The current range setting can be selected.

    1000A: 100 to 1000A / 3000A: 300 to 3000A

  • Spot and series welding for small parts.

    The MIB-70C is the ideal welding power supply for precision welding of small parts. All the setting can be done directly on the panel of the power supply unit, and the timer setting can be configured by a unit of millisecond.


For precision spot welding and series welding
Model MID-70C
Power requirements * 3-phase 220VAC + 10% - 15%, 3-phase 400VAC ±10%, 50/60Hz
Output frequency The welding current and frequency can be selected from the table below. (However, No.01 is supported only for 50Hz transformers.)
No. [Hz] No. [Hz] No. [Hz]
01 50 04 100 07 200
02 60 05 125 08 250
03 80 06 160    
Control frequency 4kHz
Maximum output current 70A (4% duty cycle)
Control method Primary constant current peak value control
Welding schedules 63 schedules
Timer setting SQUEEZE DELAY -
SQUEEZE 000 - 999(x 10ms)
UP SLOPE / RISE 1 000 - 999ms
RISE 2 000 - 999ms
WELD 1,2 / CURR 1,2 000 - 999ms
COOL 000 - 999ms
HOLD 00 - 99(x 10ms)
Heat setting / Power supply setting 100 to 1000A / 300 to 3000A
(Manual switching)
Cooling method Air cooling
Mass 10kg

  • * Set at the factory

The specification and external design are subject to change without notice.


Model MT-510AC MT-520AC MHT-52A3
Rated capacity 1.0kVA 3.2kVA 42.0kVA
Rated primary voltage 200VAC +/-10% 300VAC +/-10%
Rated secondary voltage 1.2/ 1.8/ 2.5/ 3.5V 2.5/ 3.2/ 4.0/ 5.0V 5.2V
Input frequency 50/60Hz 250kHz
Maximum output current 1600A 3700A 1000A
Duty factor (@100ms) 1.5% or below 8% or below
Cooling method Air cooling
Dimensions and Mass 193W x 291D x 176H mm / 20kg 182W x 358D x 198H mm / 35kg 100W x 207D x 130H mm / 4.5kg