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Blockmagnet 20.0 x 20.0 x 3.0 mm N45 nickel - M3 countersunk hole

Product information "Blockmagnet 20.0 x 20.0 x 3.0 mm N45 nickel - M3 countersunk hole"

Square magnet made of neodymium in N45.
In the middle of this magnet has a 3.5 mm hole with countersunk for an M3 screw so that you can screw on the magnet.
They cannot be used in pairs, as the north pole is always on the depression side and the magnets therefore repel each other.
So that the neodymium magnets do not break or splinter, simply sink the magnets into the workpiece and protect the raw magnet from direct hits.
 
Note: If too much force is applied, neodymium magnets can break. We recommend a maximum tightening torque of 2 Nm when screwing on this magnet.

Technical specifications

Adhesive force: 3,8 kg
Coating: Nickel (Ni-Cu-Ni)
Height H: 3 mm
Lenght: 20 mm
Lower diameter: 7,5 mm
Magnetization direction: axial (parallel to height)
Magnetization quality: N45
Material: Neodymium
Maximum temperature: 80 °C
Superior diameter: 3,5 mm
Tolerance: +/- 0,1 mm
Volume: 1200 mm³
Weight: 8,4 g
Width: 20 mm

Technical specifications for magnetization grade N45

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  
N45 13200-13700 1.32-1.37 10.8-12.5 860-995 ≥  12 ≥  955 43-45 342-358 ≤  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.

10 of 37 reviews

Average rating of 4.9 out of 5 stars


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14 August 2018 10:25

Review with rating of 5 out of 5 stars

Qualität 1a

26 February 2019 21:40

Review with rating of 5 out of 5 stars

Verwendet zum sicheren Schließen einer Schiebetür am Schlafzimmerschrank. Baut sehr gering auf

15 February 2019 10:31

Review with rating of 5 out of 5 stars

Qualität entspricht den Erwartungen

15 January 2019 11:25

Review with rating of 5 out of 5 stars

Gute Qualität

13 November 2018 12:57

Review with rating of 5 out of 5 stars

Schön stark und Gut zu befestigen.

21 May 2018 10:46

Review with rating of 5 out of 5 stars

Die Magnete halten bei mir Fliegenschutztüren (2 Stück/Tür). Sie sind kräftiger als es von der Beschreibung her zu erwarten war.

17 December 2017 21:56

Review with rating of 5 out of 5 stars

zum Aufhängen von Gewürzdosen

28 December 2017 20:18

Review with rating of 5 out of 5 stars

Ist sehr sehr stark. Vorsicht damit. Keine Haut dazwischen bringen.

7 March 2019 15:39

Review with rating of 5 out of 5 stars

Ich brauche Die Magnete zum Kunstobjekte bauen. ***

31 July 2018 10:17

Review with rating of 5 out of 5 stars

Super Magnet

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Accessories

Metal plate 20 x 20 x 3 mm with counterbore, nickel
Item number: MP-20x20x03
On Stock: 465 pieces

Available, delivery time: 1-3 working days

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