Ringmagnet with counterbore Ø 20.0 mm N42 - OFFER

 
Product sale
Quantity Price / pcs
from 5 pcs €1.70 *
from 15 pcs €1.50 *
from 60 pcs €1.35 *
from 300 pcs request a quote!

The prices are VAT included plus extra charges for shipping

Ready for shipment, delivery in 2-4 days

5 pieces: € *
pieces
  • RMS-20x4.5x04-G-SP
  • 4250538422997
  • magnets4you
  • 5 pieces
  • 740 pieces
Inexpensive ring magnet made of neodymium with counterbore. In our standard range, we only offer... more
Product information
Inexpensive ring magnet made of neodymium with counterbore. In our standard range, we only offer this version with a nickel coating. We can supply a small remaining quantity with a gold coating due to a customised production.
This ring magnet with a 90° counterbore made of neodymium can be securely screwed on with a countersunk head screw. The 4.5 mm hole is designed for a screw with a diameter of 4 mm.
The south pole of this magnet is on the counterbore side.
 
Note: You cannot use two of these magnets in pairs, i.e. the magnets do not adhere to each other with the countersunk side, but repel each other. If this magnet is only to adhere to metal, the magnetisation direction/polarity is irrelevant.
 
Note: Neodymium magnets can break if too much force is applied. We recommend a maximum tightening torque of 2 Nm when screwing on this magnet.

Technical specifications

total diameter D20,0 mm
inner ring d14,5 mm
Höhe H4,0 mm
materialNeodym 
temperature max.80 ° C
quality of magnetisationN42 
tolerance0.1 mm
direction of magnetisation axial 
coatingGold 
magnetic force6,000 kg
Gewicht0,009 kg

Technical specifications for magnetization grade N42

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
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 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.

Available downloads:
Read, write and discuss reviews... more
Customer evaluation for "Ringmagnet with counterbore Ø 20.0 mm N42 - OFFER"
Durchschnittliche Kundenbewertung: (aus Kundenbewertungen)
5 Feb 2021

Ich stelle mir gerade vor

5 Feb 2021

Ich stelle mir gerade vor

22 Oct 2020

Sieht gut aus. Ich weiß allerdings nicht wofür die Vergoldung gut ist.

22 Oct 2020

Sieht gut aus. Ich weiß allerdings nicht wofür die Vergoldung gut ist.

Write an evaluation
Evaluations will be activated after verification.
Please enter these characters in the following text field.

The fields marked with * are required.

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