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Ringmagnet Ø 70.0 x 30.0 x 10.0 mm N42 nickel - holds 45 kg

Product information "Ringmagnet Ø 70.0 x 30.0 x 10.0 mm N42 nickel - holds 45 kg"

Technical specifications

Adhesive force: 45 kg
Coating: Nickel (Ni-Cu-Ni)
Diameter: 70 mm
Height H: 10 mm
Inner diameter: 30 mm
Magnetization direction: axial (parallel to height)
Magnetization quality: N42
Material: Neodymium
Maximum temperature: 80 °C
Tolerance: +/- 0,1 mm
Volume: 31416 mm³
Weight: 238,76 g

Technical specifications for magnetization grade N42

Material Remanence Coercivity Energy product Maximum temperature
  Br bHc iHc (BxH)max  
  Gauss (G) Tesla (T) typ. kOe kA/m kOe kA/m MGOe kJ/m 3  
N42 12900-13200 1.29-1.32 10.8-12.0 860-955 ≥  12 ≥ 955 40-42 318-334 ≤  80

The product conforms to the European RoHS Community legislation

The product conforms to the European RoHS Community legislation (2002/95/EC - RoHS - Restriction of Hazardous Substances) relating to the use and the employment of certain hazardous substances in electrical and electronic devices.

Safety Notice

NdFeB magnets are hard and brittle. Especially with thinner dimensions / higher adhesive forces, these can easily break or splinter! An uncontrolled impact of two magnets as well as an external, mechanical shock or pressure load should therefore be avoided!

Determination of the magnetic force

The adhesive force of our magnets is determined at room temperature on a polished plate made of steel S235JR (ST37) with a thickness of 10 mm by the vertical withdrawal of the magnet (1kg ~ 10 N). A different value down to -10% compared to the specified value is possible in exceptional cases. In general, the value is exceeded. Please note that for thinner, painted and not absolute plan undergrounds the adhesive force represents only one raction of the specified values.

8 of 8 reviews

Average rating of 4.8 out of 5 stars


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12 February 2016 15:09

Review with rating of 5 out of 5 stars

Top Magnete

2 August 2017 12:26

Review with rating of 5 out of 5 stars

super produkt zum suchen von verlorenen metallteilen

16 October 2017 08:58

Review with rating of 5 out of 5 stars

alles tiptop

20 March 2018 21:16

Review with rating of 5 out of 5 stars

für Experimente sehr gut zu verwenden

17 April 2018 09:01

Review with rating of 5 out of 5 stars

technische Angaben korrekt

8 February 2020 10:33

Review with rating of 5 out of 5 stars

Sehr gute Qualität der Magnete ***

8 February 2020 10:33

Review with rating of 5 out of 5 stars

Sehr gute Qualität der Magnete ***

9 January 2016 18:36

Review with rating of 4 out of 5 stars

Verwende die Magnete für umgebaute Lichtmaschine zu Windgenerator Gerne wieder Danke