How to Choose the Right Custom Industrial Permanent Magnet

Choosing the right custom industrial permanent magnet is key to ensuring it performs optimally in a specific application. Here are some important considerations.

Application requirements are the primary factor in choosing a magnet. It is important to understand the loads and forces that the magnet needs to withstand, as well as the operating environment (such as temperature, humidity, and chemicals that it may be exposed to). This information helps determine the type and specifications of the magnet.

Material type is also an important consideration. Common industrial permanent magnet materials include neodymium iron boron (NdFeB), samarium cobalt (SmCo), and aluminum nickel cobalt (AlNiCo). NdFeB magnets have high magnetic strength and are suitable for small volume but high force requirements, and are widely used in motors and sensors. However, its sensitivity to temperature requires careful selection when used in high temperature environments. Smco magnets are resistant to high temperatures and corrosion and are suitable for extreme environments; while AlNiCo magnets have good high temperature stability, but relatively weak magnetic forces.

Size and shape are also important factors in selection. Depending on the application scenario, the magnet needs to be designed into different geometric shapes, such as discs, blocks, rings, or other special shapes. Customized magnets allow for specific designs to improve efficiency.

When selecting, magnetic properties should not be ignored. Remanence (Br) and coercivity (Hc) are key indicators of magnet performance. The higher the remanence, the stronger the magnet's magnetic strength; while high coercivity indicates that the magnet has a strong ability to resist demagnetization and is suitable for high temperature or high frequency applications.

Considering actual usage, corrosion resistance is also an important factor. In humid or corrosive environments, choosing magnets with good coatings and materials can effectively increase their service life.

In terms of budget, it is important to understand the impact of different materials, sizes and complexities on costs. Choosing a cost-effective solution can help companies control costs.

It is also crucial to choose a manufacturer with a good reputation and rich experience (such as ST Magnet Co., Ltd). They are able to provide technical support and quality assurance. Before large-scale production, it is recommended to request samples for testing to ensure that its performance meets the needs.

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