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Magnets and magnet systems

Permanent magnetic material

Steel magnets (AlNiCo)

Steel magnets are produced by means of a casting process. The basic raw materials to be used for steel magnets are mixed and heated ready for the moulding process. The alloy used contains iron as well as the following metals - 24 % Cobalt, 14 % Nickel, 8 % Aluminium, 3 % Copper and 0,45 % Niobium. From a mechanical point of view, the finished product material is relatively hard and strong and can only be machined with special machines. The magnetic properties of steel magnets are independent of temperature to a large degree.
Therefore they can be used up to temperatures of 500°C. This property is the most important factor in the choice of this material for certain applications. Usually steel magnets are known under the name AINiCo.

Dimensions und tolerances

Bar magnets (AlNiCo 500)

Article no.	Ø	Tolerance	Length	Tolerance	Quality
	mm		mm
BM 91.003/..	3,0	+0/-0,2	5,0-160	+/-0,2	BM500
BM 91.004/..	4,0	+0/-0,2	5,0-160	+/-0,2	BM500
BM 91.005/..	5,0	+0/-0,2	5,0-170	+/-0,2	BM500
BM 91.006/..	6,0	+0/-0,2	5,0-170	+/-0,2	BM500
BM 91.008/..	8,0	+0/-0,2	10,0-170	+/-0,2	BM500
BM 91.010/..	10,0	+0/-0,2	10,0-305	+/-0,2	BM500
BM 91.012/..	12,0	+0/-0,2	10,0-305	+/-0,2	BM500
BM 91.015/..	15,0	+0/-0,2	10,0-305	+/-0,2	BM500
BM 91.020/..	20,0	+0/-0,2	10,0-305	+/-0,2	BM500
BM 91.034/040*	34,0	+0/-0,2	40,0	+/-0,2	BM500
BM 91.040/048*	40,0	+0/-0,2	48,0	+/-0,2	BM500

Cylinder magnets with hole (AlNiCo 500)

Article no.	Ø	Tolerance	Ø inside	Tolerance	Length	Tolerance	Quality
	mm		mm		mm
BM 95.020/030	20,0	+/-0,4	6,0	+0,4/-0	30,0	+/-0,2	BM500
BM 95.030/022	30,0	+/-0,4	8,0	+/-0,4	22,0	+/-0,2	BM500
BM 95.035/038	35,0	+/-0,4	10,0	+/-0,4	38,0	+/-0,2	BM500
BM 95.048/046*	48,0	+/-0,4	16,0	+/-0,4	46,0	+/-0,2	BM500
BM 95.056/09**	56,0	+/-0,4	5,5	+/-0,4	9,0	+/-0,2	BM500

** magnetized diametrically

Block magnets (AlNiCo 500)

Article no.	Length	Tolerance	Width	Tolerance	Height	Tolerance	Quality
	mm		mm		mm
BM 90.008	5,0	+/-0,2	10,0	+/-0,2	20,0	+/-0,1	BM500
BM 90.025	5,0	+/-0,2	12,5	+/-0,2	40,0	+/-0,1	BM500
BM 90.026	5,0	+/-0,2	12,5	+/-0,2	60,0	+/-0,1	BM500
BM 90.009	5,0	+/-0,2	15,0	+/-0,2	60,0	+/-0,1	BM500
BM 90.012	10,0	+/-0,2	15,0	+/-0,2	101,0	+/-0,1	BM500
BM 90.010	10,0	+/-0,2	15,0	+/-0,2	50,0	+/-0,1	BM500
BM 90.011	10,0	+/-0,2	15,0	+/-0,2	75,0	+/-0,1	BM500
BM 90.011/S	10,0	+/-0,2	25,0	+/-0,2	75,,0	+/-0,1	BM500

Other dimensions on request.

* = only remaining quantities available

Magnetising methods and technical specifications you find here

Magnets and magnet systems

Permanent magnetic material

Beloh Magnetsysteme GmbH & Co. KG