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Milling machine

Belongs to:

The milling machine treats a work piece with a rotating cutter and removes material from it. Milling is related to drilling, but it can be moved in three directions instead of one.

The emitted alternating electric and magnetic fields are mainly caused by the electric motor which is why electric emission can occur also in the kHz frequency region.

Frequency ranges:
  • 50–60 Hz (mains frequency)
Type of field:
electric and magnetic

Measurements (acc. to literature)

Measurand Value Feature Remarks
magnetic flux density 494 µT (maximum, calculated) - at the surface of the device at 50 Hz [1]
electric field strength 5.73 kV/m (maximum) - at the surface of the device at 50 Hz [1]


  1. Leitgeb N et al. (2008): Magnetic emission ranking of electrical appliances. A comprehensive market survey.