Customized Alnico Magnets for Various Applications

AlNiCo Magnet is one of the earliest developed permanent magnet materials and is an alloy of aluminum, nickel,  cobalt,  iron and other trace metals. Alnico Magnets have high coercivity and high Curie temperature. Alnico alloys are hard and brittle, cannot be cold work, and must be made by a casting or sintering process.  

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Manufacturing Process of Cast AlniCo MagnetsWhy Honsen Magnetics

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Alnico magnets are renowned for their high remanence, low coercitivity, and temperature stability. The properties for each grade at room temperature are listed in Tables 1 and 2. Furthermore, additional information such as demagnetization curves for different temperatures is available for download in the datasheets. Table 3 outlines the general characteristics of Alnico magnets. Figure 2 illustrates the temperature stability, depicting the demagnetization curves of Alnico 5 grade from -180 C to +300 C. This figure demonstrates how the output of the magnet remains constant when the working point is near BHmax over a large temperature range.

Table 1: Typical magnetic properties of cast Alnico magnet

Table 2: Typical magnetic properties of sintered Alnico magnet

The physical properties of Alnico magnets are presented in Table 3. It should be noted that these values should not be considered as guaranteed, as they are not monitored during the manufacturing process.

Table 3:Physical Properties of Alnico magnets

Surface Treatment: Alnico magnets typically do not need any protection from corrosion and can be used without a coating. However, some applications may require a smooth surface, and in these cases, a protective coating can be applied.


The corrosion resistance of these coverings fluctuates depending on the form of magnets, such as chamfers and inner rings, in diverse surroundings.

Customized Alnico Magnets - The Versatile Solution for Your Specific Needs When it comes to finding a reliable and effective magnetic solution for your specific application, off-the-shelf magnets may not always fit the bill. That's where customized Alnico Magnets come in - these magnets, made of a special alloy of aluminum, nickel, and cobalt, can be tailored to meet your specific magnetic requirements and application needs. At their core, Alnico Magnets are designed to provide high magnetic strength, stability, and durability, making them suitable for a wide range of industrial, scientific, and medical applications. Whether you need a custom-shaped magnet for a sensor, a magnet with a specific magnetic field for a motor, or a magnet with a unique coating for a medical device, customized Alnico Magnets can offer a cost-effective and reliable solution. One of the main advantages of customized Alnico Magnets is their versatility and adaptability to different application requirements. With a variety of shapes, sizes, and magnetic strengths to choose from, these magnets can be customized to fit your specific needs, without compromising on performance or quality. Additionally, Alnico Magnets have a high resistance to demagnetization and corrosion, making them suitable for use in harsh environments and under intense use. At Honson Magnetics, we offer a range of customized Alnico Magnets with precision machining and strict quality control. Our team of experts can help you design and produce Alnico Magnets that meet your exact specifications and requirements, ensuring a reliable and consistent performance. Contact us today to learn more about customized Alnico Magnets and how they can enhance your magnetic application with their high magnetic strength, stability, and versatility.

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