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If you can't find what you require in our standard range on the website, kindly use the Enquiry Form to send us your wishes for custom manufacturing. |
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AlNiCo rod magnets
Precision-cast AINiCo rods are oriented and magnetized parallel to the length. Crystal orientation during heat-treatment improves the magnetic properties in this direction. Magnetisation can only occur in the predetermined preference direction. AINiCo is a hard material, workable only by grinding. We grind the surface of both ends of our round rod magnets. The optimum ratio of length to diameter (L : D) is > 4 : 1. Shorter magnet dimensions are not very stable in open circuits. Most of our magnet rods have optimum dimensions.
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AlNiCo magnets have a high remanence, but a fairly low coercivity. This means the AlNiCo magnetic material has a high flux density which, however, is only hardly present in the magnet and can easily be weakened by demagnetising influences. For this reasons AINiCo rod magnets should not be stored or used with equal poles opposing each other (repelling). In temperatures ranging from - 270 °C up to + 400 °C AINiCo is very stable. Its temperature coefficient is as low as - 0.02% per degree C. A high nickel content of the alloy results in good stability against most acids and against oxidation. |
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Most AlNiCo magnets are used for operating magnetic switches (reed switches). The magnet lengths should correspond to the length of the glass housing of the reed switch, with parallel arrangement of switch and magnet. All standard magnets are supplied magnetised parallel to the length. The following standard magnets are generally available at short notice from stock. Circular rod magnets with other dimensions in the diameter range from 3 to 20 mm are available for large series production. All dimensions in mm.
L = direction of magnetisation AlNiCo 500 corresponds to AlNiCo 35/5 according to DIN 17410 or ICE 404-8-1. We can also supply other AlNiCo alloys for large series production. |
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 Circular AlNiCo 500
rods precision
casting |  |
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| Type | D Ø | x | L (a) | |
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| A315 | 3 | x | 15 | |
| A420 | 4 | x | 20 | |
| A520 | 5 | x | 20 | |
| A625 | 6 | x | 25 | |
| A832 | 8 | x | 32 | |
| A1045 | 10 | x | 45 | |
| A1560 | 15 | x | 60 | |
| A2012 | 20 | x | 120 | |
| Design: Smooth precision cast, with ground end faces |
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 Rectangular rods made of AlNiCo 500
Sand or metal moulded |  |
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| Type | A | x | B | x | L | |
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| V48 | 4,8 | x | 4,8 | x | 25,4 | |
| V63 | 6,3 | x | 6,3 | x | 32,0 | |
| V105 | 10,0 | x | 5,0 | x | 20,0 | |
| V155 | 15,0 | x | 5,0 | x | 60,0 | |
| Design: Rough cast, end faces ground |
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| Magnetic values | Energy
product
(BxH) max | Remanence
Br | Coercivity
(T=20°C) | Relative
remanent
permeability | Temperature
coefficent of
remanence
per °C | Temperature
for practical
use | Density | Curie
tempe-
rature |
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| BHC | JHC |
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kJ
m3 | MGOe | mT | G | kA
m | Oe | kA
m | Oe | mT
kA/m | °C | g
cm3 | °C |
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AINiCo
Precision
casting | 35 | 4,4 | 1120 | 11200 | 47 | 590 | 48 | 603 | 23,80 | - 0,02% | 450° | 7,4 | 860° |
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 Order list
Prices /pc. ex works Berlin plus packing, VAT only in Germany
(A = Please ask for price) |
Catalogue
page |
Type |
1 - 19 |
20 - 49 |
50 - 99 |
100 - 199 |
200 - 499 |
500 - 1000 |
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| 17 |
A315 |
0,90 |
0,80 |
0,70 |
0,49 |
0,43 |
0,38 |
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| 17 |
A420 |
0,95 |
0,85 |
0,75 |
0,60 |
0,49 |
0,43 |
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| 17 |
A520 |
1,05 |
0,92 |
0,82 |
0,66 |
0,54 |
0,49 |
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| 17 |
A625 |
1,25 |
1,10 |
0,97 |
0,89 |
0,79 |
0,77 |
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| 17 |
A832 |
1,80 |
1,65 |
1,50 |
1,45 |
1,35 |
1,25 |
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| 17 |
A1045 |
3,45 |
3,25 |
2,90 |
2,60 |
2,45 |
2,30 |
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| 17 |
A1560 |
8,60 |
8,05 |
7,40 |
6,85 |
6,35 |
6,10 |
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| 17 |
A2012 |
40,90 |
31,70 |
28,60 |
A |
A |
A |
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| 17 |
V48 |
1,80 |
1,70 |
1,60 |
1,50 |
1,40 |
A |
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| 17 |
V63 |
2,35 |
2,15 |
2,00 |
1,70 |
A |
A |
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| 17 |
V105 |
2,30 |
2,10 |
1,80 |
1,40 |
1,35 |
1,05 |
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| 17 |
V155 |
4,85 |
4,60 |
3,80 |
3,50 |
3,20 |
2,95 |
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Small orders: Payments from foreign countries result in additional bank charges, therefore we charge an additional lump sum of 15,- Euro for all foreign orders with a goods value less than 153,- Euro.
Please ask for our Conditions of sale, delivery and payment in english and our export conditions for your country. |
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Index 
Order list 
Hard ferrite magnets
Betaflex (Magnet rubber)