Medium-frequency transformer rectifier units (MF DC Units) and High-frequency rectifier units (HF DC Units)

Medium-frequency technology is the key joining process in the automotive industry.

Thanks to their compact size and exceptional power density, these transformers can be used, amongst other things, for particularly light-weight welding guns.

Moreover, in combination with state-of-the-art control systems, MF welding systems satisfy even the toughest of demands to ensure optimised welding quality.

Applications:

  • Robot welding guns
  • Manual welding guns
  • Micro welding
  • Output: 56 ... 377 kVA (50% duty cycle)
  • Permanent DC current: 5,0 ... 10 kA
  • Typical frequencies: 1,000, 4,000, 10,000 Hz

We would be delighted to help you select your products.

Product overview

The various types are classified using an unambiguous product designation (see example).

More detailed information is available by clicking on the images.

Typbeschreibung
Secondary no-load voltages 6,4 V, 8,4 V
Nominal power (50% d.f.) 61 and 77,6 kVA
Permanent current 5,0 kA
Mass 15,5 kg
Frame size 106 x 150 mm
Frequency 1000-1200Hz
 
Secondary no-load voltages 9,3 V, 12,5 V
Nominal power (50% d.f.) 111 and 146kVA
Permanent current 6,5 kA
Mass 24 and 29,5 kg
Frame size 125 x 160 mm
Frequency 1000-1200 Hz
 
Secondary no-load voltages 6,4 V, 9,3 V, 12,5 V, 16,0 V
Nominal power (50% d.f.) 88 to 205 kVA
Permanent current 7,2 kA
Mass 22,4 to 29,2 kg
Frame size 125 x 160 mm
Frequency 1000-1200 Hz
 
Secondary no-load voltages 6,4V, 8,9V, 13,2V, 17,0V, 21,4V
Nominal power (50% d.f.) 78 ... 245 kVA
Permanent current 6,5 kA
Mass 16,5 to 23 kg
Frame size 106 x 150 mm
Frequency 1000-1200 Hz
 
Secondary no-load voltages 6,4V, 8,9V, 13,2V, 17,0V, 21,4V
Nominal power (50% d.f.) 121...377 kVA
Permanent current 10,0 kA
Frame size 125 x 160 mm
Frequency 1000-1200 Hz
 
Secondary no-load voltages 11,1 V
Nominal power (50% d.f.) 121 kVA
Permanent current 6,0 kA
Mass 13 kg
Frame size 106 x 150 mm
Frequency 10 kHz
 
Secondary no-load voltages 11,1 V
Nominal power (50% d.f.) 60 kVA
Permanent current 3,0 kA
Mass 12 kg
Frame size 106 x 150 mm
Frequency 10 kHz