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Blockmagnet 25.0 x 5.0 x 5.0 mm N42 nickel - holds 4 kg

Product information "Blockmagnet 25.0 x 5.0 x 5.0 mm N42 nickel - holds 4 kg"

Technical specifications

Adhesive force: 4 kg
Coating: Nickel (Ni-Cu-Ni)
Height H: 5 mm
Lenght: 25 mm
Magnetization direction: axial (parallel to height)
Magnetization quality: N42
Material: Neodymium
Maximum temperature: 80 °C
Tolerance: +/- 0,1 mm
Volume: 625 mm³
Weight: 4,75 g
Width: 5 mm

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.

9 of 9 reviews

Average rating of 4.8 out of 5 stars


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17 August 2016 07:43

Review with rating of 5 out of 5 stars

Bau von Prototypen für jedermann der mit Magnete experimentieren will. Super Qualität ....

28 August 2016 20:59

Review with rating of 5 out of 5 stars

verwenden das Produkt Türmagnet - deutlich kleiner als der ursprünglich vorgesehene

13 December 2016 07:03

Review with rating of 5 out of 5 stars

sehr schnelle Lieferung

19 February 2017 14:32

Review with rating of 5 out of 5 stars

die Qualität stimmt

26 February 2017 09:17

Review with rating of 5 out of 5 stars

alles ok

28 February 2017 22:05

Review with rating of 5 out of 5 stars

sind sehr spröde zerbrechen recht schnell wenn man nicht aufpasst. super haltekraft

23 August 2018 13:00

Review with rating of 5 out of 5 stars

sehr stabil

6 February 2019 08:02

Review with rating of 5 out of 5 stars

Schnelle Lieferung und gute Info über Bestell und Versendeablauf

14 November 2018 07:54

Review with rating of 4 out of 5 stars

gute Qualität