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https://www.mishmamagnet.com/trade-news/How-Bonded-Magnets-Are-Made.html

Bonded magnets are widely used in modern industries due to their design flexibility, dimensional accuracy, and stable magnetic performance. At Mishma Industry (Shanghai) Co., Ltd., we manufacture bonded magnets through carefully controlled processes that combine advanced materials and precise forming technologies.

Magnetic Powder and Binder Manufacturing Principle

The production of bonded magnets begins with magnetic powder combined with a binder. High-quality magnetic powders, such as NdFeB or ferrite, are uniformly mixed with polymer or resin binders. This mixture forms a composite material in which the magnetic particles are evenly distributed and securely bonded.

The binder plays a critical role by providing mechanical strength, corrosion resistance, and dimensional stability, while the magnetic powder determines the magnet’s magnetic properties. This manufacturing principle allows bonded magnets to achieve complex shapes and consistent quality with minimal material waste.

Injection Molding vs. Compression Molding

There are two primary forming methods used in bonded magnet production: injection molding and compression molding, each suited to different application requirements.

Injection molding is ideal for producing high-precision bonded magnets with complex geometries and tight tolerances. This method enables high-volume production and allows bonded magnets to be integrated with plastic components in a single process, reducing assembly steps.

Compression molding involves pressing the magnetic powder and binder mixture into a mold under high pressure. This method typically delivers higher magnetic density and improved magnetic performance, making it suitable for applications that require stronger magnetic output with simpler shapes.

At Mishma Industry (Shanghai) Co., Ltd., we select the most appropriate molding process based on customer design requirements, performance targets, and production volume.

Magnetization Methods for Bonded Magnets

After forming, bonded magnets undergo a controlled magnetization process. Depending on the application, different magnetization methods can be applied, including axial, radial, or multi-pole magnetization. These magnetization options allow bonded magnets to meet specific magnetic field distribution requirements.

The flexibility of magnetization methods is one of the key advantages of bonded magnets, enabling precise magnetic performance for motors, sensors, and electronic components.

Reliable Manufacturing at Mishma Industry (Shanghai) Co., Ltd.

With advanced production equipment and strict quality control systems, Mishma Industry (Shanghai) Co., Ltd. ensures that every bonded magnet meets customer specifications in terms of shape, magnetic performance, and reliability. Our technical team provides professional support throughout the design and manufacturing process, delivering bonded magnet solutions tailored to diverse industrial applications.

Through optimized material selection, molding techniques, and magnetization processes, we produce bonded magnets that combine performance, consistency, and cost efficiency.

https://www.mishmamagnet.com/trade-news/How-Bonded-Magnets-Are-Made.html
Mishma Industry (Shanghai) Co.,Ltd.

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