Alnico Holding Magnet

Alnico holding magnet is a powerful magnetic device crafted from an alloy primarily composed of aluminum, nickel, and cobalt, hence the name "Alnico." Renowned for their exceptional strength and durability, these magnets are commonly employed in various industrial, commercial, and scientific applications where reliable gripping, holding, or lifting capabilities are essential.

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Products Description

Alnico Holding Magnet is a permanent magnetic material made of metal alloys such as aluminum, nickel, and cobalt. Its magnetism comes from the specific arrangement and interaction of these metal elements in the alloy. Aluminum-cobalt magnets are usually manufactured through a refined sintering process or a casting process to form a highly uniform magnetic structure during the production process. The shape of Alnico Holding Magnet can be customized according to application requirements. Common forms include blocks, bars, and rings.

Features

Excellent resistance to mechanical damage
The alloy structure of Alnico Holding Magnet gives it excellent resistance to mechanical damage. Aluminum-cobalt material has high toughness and impact resistance, and the magnet's magnetic retention ability is less affected even when subjected to external impact or pressure. Its inherent structural strength can withstand higher physical loads, making it stable when used in environments with large vibrations and shocks.

Stable magnetic retention
Alnico Holding Magnet has excellent magnetic stability and very slow magnetic force decay. Its residual magnetic flux density (Br) and coercive force (HcJ) can still maintain a high level even after long-term use. Take LNG44 and LNG52 as examples, with residual magnetic flux density of 1250 mT and 1300 mT respectively, which means that its magnetic retention ability is extremely strong in long-term use.

High-precision magnetic configuration
Alnico Holding Magnet shows extremely high uniformity in its magnetic field distribution through a high-precision production process. This precise magnetic field control enables aluminum-cobalt magnets to provide consistency and reliability in applications that require precise magnetic field configuration.

Low temperature coefficient and demagnetization resistance
Alnico Holding Magnet has a low temperature coefficient (% Change Per °C), which means that the magnetic properties will decrease less when the temperature fluctuates. Taking LNG37 as an example, its temperature coefficient is -0.02. In a wide temperature range, the magnetic change remains at a low level, which is suitable for working environments with large temperature differences.

Magnetic property

Grade	Br		HcJ		(BH)max		D	Equivalent MMPA Class	% Change Per C		Tc	Tw
Grade	mT	Gs	KA/m	Oe	KJ/m³	MGOe	g/cm³	Equivalent MMPA Class	Near Br	Near HcJ	℃	℃
*LN9	680	6800	30	380	9	1.13	6.9	Alnico 3	-0.03	-0.02	810	450
*LN10	600	6000	40	500	10	1.2	6.9	Alnico 3	-0.03	-0.02	810	450
*LNG12	720	7200	45	500	12.4	1.55	7	Alnico 2	-0.03	-0.02	810	450
*LNG13	700	7000	48	600	12.8	1.6	7	Alnico 2	-0.03	-0.02	810	450
LNG37	1200	12000	48	600	37	4.65	7.3	Alnico 5	-0.02	0.03	860	525
LNG40	1250	12500	48	600	40	5	7.3
LNG44	1250	12500	52	650	44	5.5	7.3
LNG52	1300	13000	56	700	52	6.5	7.3	Alnico 5DG
LNG60	1350	13500	59	740	60	7.5	7.3	Alnico 5-7
LNGT28	1000	10000	58	720	28	3.5	7.3	Alnico 6	-0.02	0.03	860	525
LNGT3	700	7000	140	1750	36	4.5	7.3	Alnico 8HC	-0.025	0.02	860	550
*LNGT18	580	5800	100	1250	18	2.2	7.3	Alnico 8	-0.025	0.02	860	550
LNGT32	800	8000	100	1250	32	4	7.3	Alnico 8	-0.025	0.02	860	550
LNGT40	800	8000	110	1380	40	5	7.3	Alnico 8	-0.025	0.02	860	550
LNGT60	900	9000	110	1380	60	7.5	7.3	Alnico 9	-0.025	0.02	860	550

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