A 25x3mm neodymium magnet (NdFeB) is a cylindrical disc-shaped magnet made from an alloy of neodymium, iron, and boron. With a diameter of 25mm and a thickness of 3mm, it is compact yet extremely powerful. Here’s a brief description:
Neodymium magnets, also known as NdFeB magnets, are a type of rare-earth magnet made from an alloy of neodymium (Nd), iron (Fe), and boron (B). First developed in 1982 by General Motors and Sumitomo Special Metals, they have since become the strongest type of permanent magnet available on the market.
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This neodymium disc magnet size is 25x3mm Which the diameter is 25mm and the thickness is 3mm(N52 Nickel coating). This size magnet can reach around 6,500 to 7,500 Gauss and then pull force will be around 7-10 kg (15-22 lbs).
• Consumer electronics: Used in devices such as smartphones, headphones, laptops, and hard drives, which require small but powerful magnets.
• Electric motors: Neodymium magnets are used in electric motors, especially in electric vehicles, drones, and other machinery that requires high efficiency.
• Medical devices: Essential in MRI machines and other medical technology due to their strong and stable magnetic fields.
• Renewable energy: Used in wind turbines and other forms of clean energy generation, where strong, lightweight magnets improve efficiency.
• Magnetic tools: Used in magnetic fasteners, couplings, sensors, and industrial automation systems.
The maximum working temperature varies by magnet grade. For example, N35 to N52 magnets typically handle up to 80°C, while high-temperature magnets (such as the H series) can withstand temperatures between 120°C and 200°C. If you have high-temperature requirements, contact us for recommendations on suitable products.
We package the magnets with magnetic shielding materials to ensure safe transportation and prevent interference with other goods or equipment during shipping. We also offer global shipping services and work with trusted logistics partners to ensure your magnets are delivered safely and on time.
Neodymium magnets are very resistant to demagnetization, but to avoid any risk, ensure the magnets are used within their specified temperature limits. Exceeding the maximum working temperature may cause a loss of magnetism. We also offer high-temperature resistant magnets, such as N45H or N52H, designed for demanding applications.
Fullzen Magnetics has more than 10 years of experience in the design and manufacture of custom rare earth magnets. Send us a request for quote or contact us today to discuss your project's specialty requirements, and our experienced team of engineers will help you determine the most cost effective way of providing you with what you need.Send us your specifications detailing your custom magnet application.