Maurer Degaussing MM JE Yoke Surface Demagnetizers

Maurer Degaussing MM JE Yoke Surface Demagnetizers

Maurer Degaussing MM JE Yoke Type Surface Demagnetizers


MM JE165 / 266 / 300 Yoke Demagnetizers can be used either manually or integrated in automated processes. They are powered by mains frequency.

The MM JE Demagnetizers produce a stray field over the middle of the top panel. The operating area of the stray field of a yoke demagnetizer is more voluminous than for example that produced by a plate demagnetizer. Magnetism of ferromagnetic parts can be removed up to a penetration depth of about 10 mm, therefore making yoke demagnetizers well suited for demagnetizing tools or flat parts.

Simulation of the magnetic field produced by the MM JE Yoke Demagnetizers

Automatic Field Decline Technology, AFDT Innovation for surface type demagnetizers

When the device gets switched off, the alternating magnetic field will not be switched off immediately (in worst case at the highest point of an amplitude). AFDT continuously reduces the magnetic field by decreasing amplitudes. This function delivers the following benefits to customers:

  • No magnetization of parts when switching off the device
  • Possibility of demagnetizing parts by using the field decline function without moving the parts over the surface - just place the part in the middle of the top plate and press the pulse button.
  • When using the field decline function, no outflow zone is needed after passing the operating area.
  • Secure process in manual operation. No magnetization of the parts when the demagnetizer is switched off, before the part is removed from the magnetic field.

Operation and Range of Application

In manual operation, slide the part you want to demagnetize directly with a slow and continuous movement over the surface of the demagnetizer. The alternating field reaches its maximum at the center of the plate. Alternatively, the parts can be demagnetized by using the field decline function. Put the part in the middle of the top panel and press the pulse button. The alternating decreasing field will demagnetize the part automatically. mm-je-operation

How to get the best results

  • Move the part slowly and continuously from point I to O over the surface.
  • Reverse the part and demagnetize it a second time by sliding the other side over the surface of the demagnetizer.
  • If the part has hard magnetic spots on the surface, turn the parts' surface towards the demagnetizers surface while demagnetizing.
  • Parts with a thickness of more than 10mm needs to be demagnetized from both sides or from all sides.
  • It's possible to use two yoke demagnetizers, either one after the other or as a double yoke.
  • The field decreases if there is a distance between the part and the surface of the magnetizer. This needs to be considered if the yoke demagnetizer is being used to demagnetize parts on a conveyor belt.



Type MM JE165 MM JE266 MM JE300
Dimensions W x H x D: 9.8" x 6.5" x 3.0"
250 x 165 x 75mm
11.3" x 10.5" x 3.0"
280 x 266 x 75 mm
15.8" x 12" x 3.0"
400 x 300 x 75 mm
Working Width: 6.5" / 165mm 10.5" / 266mm 12" / 300mm
Maximum Field, peak: 50 kA/m 50 kA/m 50 kA/m
Range of Operation / Duty Cycle: 32°F - 104°F / 0°C - 40°C, 100% 32°F - 104°F / 0°C - 40°C, 100% 32°F - 104°F / 0°C - 40°C, 100%
Power Consumption: 28 W 39 W 41 W
Power Supply: 200...240 VAC / 50 Hz / 3A
110...120 VAC / 60 Hz / 3A
200...240 VAC / 50 Hz / 3A
110...120 VAC / 60 Hz / 3A
200...240 VAC / 50 Hz / 3A
110...120 VAC / 60 Hz / 3A
Weight: 20 lbs. / 9 kg 31 lbs. / 14 kg 42 lbs. / 19 kg
Protection class IP: 42 42 42
Manual Operation: Standard with all models
Remote Controlled: Standard with all models
Protection against overheating:
- Integrated temperature switch.
- Temperature switch contact can be tapped over a standard MB sensor socket.
Standard with all models

Product Literature

Description Part # Saved Price Add to
MM JE165 - 115V / 60Hz DE-MM-T-00205 $2,225.00
MM JE165 - 230V / 50Hz DE-MM-T-00200 $2,225.00
MM JE266 - 115V / 60Hz DE-MM-T-00215 $2,595.00
MM JE266 - 230V / 50Hz DE-MM-T-00210 $2,595.00
MM JE300 - 115V / 60Hz DE-MM-T-00225 $3,190.00
MM JE300 - 230V / 50Hz DE-MM-T-00220 $3,190.00