Pressed Magnets

Products

Plastic-bonded pressed magnets are the result of the union between thermoplastic binders and permanent magnet powders, and can be made in isotropic or anisotropic qualities.

Pressed magnets are magnetic products manufactured with high precision and tailor-made for each application. Thanks to the moulding process involved in the development of the production of pressed magnets, there are several types of magnets, which can be divided into isotropic and anisotropic magnets according to their quality.

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CHARACTERISTICS

Type of material

Magnetic powders: ferrite or rare earth
Thermoplastics

Composition

NdFeB / SmCo
Ferrite
PA6 / PA12

Work temperature

From 100ºC to 120ºC

Advantages

Mechanical Properties
Complex shapes
Custom Fabrication

Pressed magnets have high magnetic properties and high heat resistance. The standard working temperature of pressed magnets is between 100°C – 120°C.

Pressed magnets are a popular way of creating magnets with high strength and durability. These magnets are created from a pressing process, in which high pressure is applied to a mixture of magnetic powder and a resin binder. Pressed magnets are known for their ability to retain high magnetic strength, making them ideal for a variety of industrial and commercial applications.

Pressed magnets are commonly used in the manufacture of electric motors, generators, and other electromechanical devices. Their high magnetic strength allows these devices to operate more efficiently and durably. Pressed magnets are also used in the production of loudspeakers, audio systems, and medical equipment.

The process of pressing magnets can produce different shapes and sizes, making them very versatile for use in a variety of applications. Some popular shapes of pressed magnets include blocks, discs, rings, and segments.

Pressed magnets are known for their high resistance to demagnetisation and their ability to retain their magnetic strength over the long term. This makes them ideal for use in heavy-duty applications, such as in the production of turbines and military equipment.

If you have any questions about the qualities of pressed magnets, you can consult the properties (remanence, strength, coercivity, temperatures…) in the qualities table below.

CONSULT QUALITY TABLE

IMA							Producto Energético			Remanencia			Rev. temp.-coeff.			Coercitividad			Magnetising	Max.			Density
							Producto Energético (B*H)max.			Remanencia Br			Rev. temp.-coeff. of Br			Coercitividad			Fuerza Campo Magnético	Temperatura max. Trabajo			Densidad
							Producto Energético (B*H)max.			Remanencia Br			Rev. temp.-coeff. of Br			Coercitividad			Fuerza Campo Magnético	Temperatura max. Trabajo			Densidad
							Producto Energético (B*H)max.			Remanencia Br			Rev. temp.-coeff. of Br			Coercitividad			Fuerza Campo Magnético	Temperatura max. Trabajo			Densidad
Imanes de NdFeB prensados unidos con plástico 1)							kJ/m3	kJ/m3	mT	mT	aprox.		HcB	min.HcJ	min	aprox.		aprox.
Imanes de NdFeB prensados unidos con plástico 1)							(typ.)	(min.)	(typ.)	(min.)	%/K		kA/m	kA/m	kA/m	°C		g/cm3
Imanes de NdFeB prensados unidos con plástico 1)													(min.)	(min.)
NdFeB	65/70	Potencia	isotrópico	70	65	650	610	'-0,14	2)	390	700	2800	130	3)	6
NdFeB	65/85	Potencia	isotrópico	72	65	650	610	'-0,13	' 2)	420	850	2800	140	3)	6
NdFeB	72/70	Potencia	isotrópico	80	72	700	660	'-0,11	' 2)	440	700	2800	130	3)	6

Advantage

They have excellent mechanical properties that allow us to achieve tight tolerances, facilitating the balancing and assembly of the same.

This material enables the creation of more complex geometries. IMA currently manufactures this product for numerous customers; motor manufacturers, magnetic encoders for household appliances, washers, and motors, and automotive.

Applications

Pressed magnets include hot-pressed magnets which have a high resistance to heat. Pressed magnets can be used in various sectors such as automotive, medical, and electronic equipment.

Pressed magnets are a type of permanent magnet that is manufactured by compacting magnetic powders in a die and then sintering them at high temperatures to create a solid, dense piece.

Pressed magnets are commonly used in electric motors, generators, measuring devices, and sensors, as well as in automation equipment and industrial tools. Due to their high density and strength, pressed magnets are also suitable for applications where high performance is required in confined spaces.

In the automotive industry, pressed magnets are used in electric motors in hybrid and electric vehicles. These magnets are also used in audio systems and high-fidelity loudspeakers, where high-fidelity and accurate signal responses are required.

Pressed magnets are also useful in medical applications, such as magnetic resonance imaging (MRI), where they are used to produce stable and uniform magnetic fields. In addition, pressed magnets are also used in magnetic therapy equipment for the treatment of diseases and injuries.

In the food industry, pressed magnets are used in magnetic separators for the removal of ferrous contaminants in food and pharmaceuticals. Pressed magnets are also used in the manufacture of magnetic toys and security applications, such as magnetic locks and security systems.

The properties of pressed magnets create a multitude of applications in most industrial sectors.

Electric Motors
Encoders
Robotics
Automotive parts
Generators
Home appliances

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