Raw magnets of hard ferrite

Ring magnet made of hard ferrite, with countersink

technical drawing Ring magnet with countersink | © Brugger GmbH
technical drawing Ring magnet with countersink | © Brugger GmbH

PRODUCT NOTE:
Tools are often required for the production of HF magnets. Therefore, not every desired dimension is possible. Simple shapes and small quantities can be cut from blocks or bars if necessary. The surface is bright but not dust-free. The temperature specification refers to the maximum operating temperature of the material. Due to the
resistance may be reduced due to the geometry.

As an alternative to the standard, we also offer customised solutions:
" customer-specific dimensions
" modified magnetisation direction
" other types of magnetisation
" other 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/-0.115 +0.5/-0.52453250axialyes
Article number: MFARm31x5.3x15
Quality: 26/22
D mm: 31 +0.8/-0.8
d mm: 5,3 +0.3/-0.1
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
Magnetised by 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.