Discmagnet Ø 40.0 x 4.0 mm N40 Gold - 5 mm hole

 
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from 20 pcs €6.12 *
from 40 pcs €5.80 *
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  • SM-40x04-G-L
  • 4250538410253
  • magnets4you
  • 48 pieces
Flat neodymium disc magnet in N40. The specialty of this magnet is a 5 mm hole. The distance from... more
Product information
Flat neodymium disc magnet in N40. The specialty of this magnet is a 5 mm hole. The distance from the outer edge of the magnet to the hole is 5 mm.
Usually it makes sense to screw on strong magnets. However, this magnet can be attached to a string, for example.

Technical specifications

materialNeodym 
coatingGold (Ni-Cu-Ni-Au) 
total diameter D40,0 mm
volume4948 mm³
temperature max.80 ° C
quality of magnetisationN40 
tolerance+/- 0,1 mm
direction of magnetisation axial (parallel zur Höhe) 
weight0,037605 kg
magnetic force12,600 kg
total height H4,0 mm

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 "Discmagnet Ø 40.0 x 4.0 mm N40 Gold - 5 mm hole"
Durchschnittliche Kundenbewertung: (aus Kundenbewertungen)
15 Oct 2020

*****

15 Oct 2020

*****

24 Oct 2019

Verwende die Magneten in meinem Büro um größere Pläne

24 Oct 2019

Verwende die Magneten in meinem Büro um größere Pläne

27 Dec 2016

Alles OK

27 Dec 2016

Alles OK

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  • D-97816 Lohr a. Main
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