Ringmagnet Ø 18.0 x 10.0 x 4.0 mm N40 nickel - holds 4.4 kg

Quantity Price / pcs
from 5 pcs €1.23 *
from 15 pcs €1.07 *
from 40 pcs €0.96 *
from 80 pcs €0.88 *
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5 pieces: € *
  • RM-18x10x04-N
  • 4250538408687
  • magnets4you
  • 5 pieces
  • 3745 pieces

Technical specifications

total diameter D18,0 mm
inner ring d110,0 mm
total height H4,0 mm
volume704 mm³
temperature max.80 ° C
quality of magnetisationN40 
tolerance+/- 0,1 mm
direction of magnetisation axial (parallel zur Höhe) 
coatingNickel (Ni-Cu-Ni) 
magnetic force4,4000 kg
weight0,005348 kg

Technical specifications for magnetization grade N40

Material Remanence Coercivity Energy product Maximum temperature
Br bHc iHc (BxH)max
Gauss (G) Tesla (T) kOe kA/m kOe kA/m MGOe kJ/m 3 °C
N40 12600-12900 1.26-1.29 10.5-12.0 860-955 ≥  12 ≥  955 38-40 303-318 ≤  80

  • The product conforms to the European RoHS Community legislation

    The product conforms to the European RoHS Community legislation The product conforms to the European RoHS Community legislation (2002/95/EG - RoHS - Restriction of Hazardous Substances) relating to the use and the employment of certain hazardous substances in electrical and electronic devices.
    No subject to registration under the REACH Regulation.
  • 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.

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Customer evaluation for "Ringmagnet Ø 18.0 x 10.0 x 4.0 mm N40 nickel - holds 4.4 kg"
Durchschnittliche Kundenbewertung: (aus Kundenbewertungen)
9 Oct 2020

Diese Magnete habe ich als Tragmagnete auf den Rotor meines magnetisch gelagerten Motors verwendet. Die magnetischen Werte und die geometrischen Abmessungen entsprachen zu 100% meinen Erwartungen.

5 Feb 2020

Es ist immer wieder erstaunlich

31 Jan 2020

Nutzung in der medizinischen Praxis

20 Sep 2019

Probe als Ersatzteil

8 Aug 2019

Tutto perfetto!

30 Apr 2019

Alles bestens. Magnete sind super!

18 Sep 2018

Sehr starke Magnete. Für schwere Lasten gut geeignet. Verwende die Magnete zum Fixieren von Teilen zum bohren.

6 Jul 2018

Bergen metallischer Gegenstände

4 Nov 2017

Die Magneten werden für die Befestigung eines Gitters auf einem Blech verwendet. Der Innendurchmesser entspricht genau der Größe der Luftlöcher des Bleches. Super Magnetwirkung.

24 Aug 2017

Diese und die anderen Magneten verwende ich als Teil von Halte- und Positionierungseinrichtungen für schwierig hanhabbare Objekte in der Mikro- und Makrophotograhie.

28 Jan 2017

Guter Magnet

27 Sep 2016

Very good Service

10 Jul 2016

Ich verwende diese Magnete für diverse Sachen im Wohnmobil. Die Qualität passt bis jetzt.

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  • magnets4you GmbH
  • Bgm.-Dr.-Nebel-Str. 15a
  • D-97816 Lohr a. Main
  • Tel.: +49 (0) 93 52 / 60 43 86 - 0