Raw magnets of hard ferrite

Ring magnet of hard ferrite, with countersink

PRODUCT INFORMATION:
For the production of HF magnets, tools are often required. Therefore, not every desired dimension can be realised. Simple forms and small quantities can be cut from blocks or bars. The surface is blank but not free of dust. The specified temperature refers to the maximum operating temperature of the material. The resistance may be reduced due to the geometry.

As an alternative to the standard we also offer individual solutions:
» customised dimensions
» modified directions of magnetisation
» other types of magnetisation
» further qualities

Data sheet
Article numberQualityD mmd mmH mmAdhesive force* NWeight gTemperature °CMagnetisationReduction
MFARm13x3.5x3.926/2213.6 +0.3/-0.33,5 +0.1/-0.13,9 +0.1/-0.12.52.5250axial
Article number: MFARm13x3.5x3.9
Quality: 26/22
D mm: 13.6 +0.3/-0.3
d mm: 3,5 +0.1/-0.1
H mm: 3,9 +0.1/-0.1
Adhesive force* N: 2.5
Weight g: 2.5
Temperature °C: 250
Magnetisation: axial
MFARm17.2x4x5.326/2217.2 +0.3/-0.34,1 +0.4/05,3 +0.1/-0.155.5250axial
Article number: MFARm17.2x4x5.3
Quality: 26/22
D mm: 17.2 +0.3/-0.3
d mm: 4,1 +0.4/0
H mm: 5,3 +0.1/-0.1
Adhesive force* N: 5
Weight g: 5.5
Temperature °C: 250
Magnetisation: axial
MFARm22x5.5x628/1621.8 +0.4/-0.45,5 +0.2/-0.26 +0.1/-0.18.510250axial
Article number: MFARm22x5.5x6
Quality: 28/16
D mm: 21.8 +0.4/-0.4
d mm: 5,5 +0.2/-0.2
H mm: 6 +0.1/-0.1
Adhesive force* N: 8.5
Weight g: 10
Temperature °C: 250
Magnetisation: axial
MFARm28x5.5x624/2328 +0.5/-0.55,5 +0.3/-0.36 +0.1/-0.11317250axial
Article number: MFARm28x5.5x6
Quality: 24/23
D mm: 28 +0.5/-0.5
d mm: 5,5 +0.3/-0.3
H mm: 6 +0.1/-0.1
Adhesive force* N: 13
Weight g: 17
Temperature °C: 250
Magnetisation: axial
MFARm31x5.3x1526/2231 +0.8/-0.85,3 +0.3/015 +0.5/-0.52453250axialyes
Article number: MFARm31x5.3x15
Quality: 26/22
D mm: 31 +0.8/-0.8
d mm: 5,3 +0.3/0
H mm: 15 +0.5/-0.5
Adhesive force* N: 24
Weight g: 53
Temperature °C: 250
Magnetisation: axial
Reduction: yes
MFARm36x5.5x6.528/1635.5 0/-0.85,5 +0.2/-0.26,5 +0.1/-0.11830250axial
Article number: MFARm36x5.5x6.5
Quality: 28/16
D mm: 35.5 0/-0.8
d mm: 5,5 +0.2/-0.2
H mm: 6,5 +0.1/-0.1
Adhesive force* N: 18
Weight g: 30
Temperature °C: 250
Magnetisation: axial
Magnetized via the height (H)
* The forces have been determined at room temperature on a polished plate made of steel (S235JR according to DIN 10 025) with a thickness of 10 mm (1kg~10N). A deviation of up to -10% from the specified value is possible in exceptional cases. In general, the value is exceeded. The type of application (installation situation, temperatures, counter anchors, etc.) sometimes influence the forces enormously. The values given are for orientation purposes. Let our experts advise you.