The Neodymium Magnet Round Shape 4mm x 2mm, a powerful and versatile magnet designed to meet various magnetic needs with precision and reliability. 

Crafted with exceptional quality and durability, the Neodymium Magnet Round Shape 4mm x 2mm is engineered to deliver superior magnetic performance. Its nickel, copper, and nickel triple-layer plating ensure corrosion resistance and long-term functionality, making it suitable for a wide range of applications.

With a diameter of 4mm and a thickness of 2mm, this magnet strikes the perfect balance between size and strength. Its ± 0.5mm tolerance ensures consistent performance and reliable magnetic force in every use.

Capable of operating at temperatures of up to 80°C, the Neodymium Magnet Round Shape 4mm x 2mm is suitable for use in various environments and industries. Whether you're using it for DIY projects, crafting, magnetic closures, sensor applications, or educational experiments, this magnet delivers consistent and reliable performance.

The magnet is axially magnetized, with poles located on the flat ends, providing strong and stable magnetic attraction. With its impressive magnetic force and compact design, the Neodymium Magnet Round Shape 4mm x 2mm is the perfect choice for all your magnetic needs.

How the Neodymium Magnet is made ?

1. Raw Material Preparation: The process begins with the preparation of raw materials, including neodymium, iron, and boron (NdFeB). These materials are carefully refined and processed to meet specific purity and composition requirements.

2. Alloy Melting and Casting: The refined raw materials are melted together in a vacuum induction furnace at high temperatures exceeding 1300°C. This process creates a molten alloy of neodymium, iron, boron, and other elements to enhance magnetic properties.

3. Crushing and Milling: The molten alloy is solidified into ingots and then crushed into fine powder particles using specialized milling equipment. This powder serves as the base material for forming magnets.

4. Pressing: The powder is compacted into the desired shape using hydraulic or mechanical presses. The shape may vary depending on the final application, such as discs, blocks, or cylinders for round magnets.

5. Sintering: The pressed magnets undergo a sintering process in a controlled atmosphere furnace at temperatures ranging from 1000°C to 1300°C. During sintering, the powder particles bond together, resulting in a solid magnet with improved mechanical strength.

6. Machining and Grinding: After sintering, the magnets are machined and ground to achieve the final dimensions and surface finish. This step ensures that the magnets meet the specified tolerances and surface requirements.

7. Plating: The magnets are coated with a protective layer of nickel-copper-nickel (Ni-Cu-Ni) through an electroplating process. This triple-layer plating enhances corrosion resistance and durability, extending the lifespan of the magnet.

8. Magnetization: The magnets are magnetized using strong magnetic fields to align the magnetic domains within the material. This process gives the magnet its permanent magnetic properties.

9. Quality Control: Throughout the manufacturing process, rigorous quality control measures are implemented to ensure that the magnets meet the specified performance and dimensional requirements. This includes testing for magnetic properties, dimensional accuracy, and surface quality.

10. Packaging and Distribution: Once the magnets pass quality control inspections, they are packaged and prepared for distribution to customers worldwide.

frequently asked questions (FAQ):

1. What are neodymium magnets, and what makes them special?

   Answer: Neodymium magnets are a type of rare-earth magnet known for their exceptional strength and magnetic properties. They are made from a combination of neodymium, iron, and boron (NdFeB), which gives them their strong magnetic field. Neodymium magnets are prized for their high magnetic strength-to-size ratio, making them the strongest permanent magnets available commercially.

2. What are the common applications of neodymium magnets?

   Answer: Neodymium magnets have various applications, including magnetic closures for doors and cabinets, holding tools and objects in place, magnetic clasps for jewelry, magnetic sensors, and educational experiments. Their compact size and strong magnetic field make them versatile for a wide range of uses.

3. Are neodymium magnets safe to handle?

   Answer: While neodymium magnets are not inherently dangerous, they can pose risks if mishandled. These magnets are very strong and can cause injuries if they pinch or crush fingers. Additionally, swallowing or inhaling small neodymium magnets can be hazardous and requires immediate medical attention, especially in children. It's essential to handle neodymium magnets with caution and keep them out of reach of small children.

4. How should neodymium magnets be stored to maintain their magnetic properties?

   Answer: Neodymium magnets should be stored away from other magnets and ferromagnetic materials to prevent unintentional attraction or damage. Additionally, they should be kept in a dry environment to avoid corrosion. It's also recommended to store neodymium magnets in a cool, stable temperature to maintain their magnetic properties over time.

5. Can neodymium magnets be customized for specific applications?

   Answer: Yes, neodymium magnets can be customized in terms of size, shape, and magnetic strength to meet specific application requirements. Manufacturers can produce magnets with different dimensions, coatings, and magnetization directions based on customer specifications. Customized neodymium magnets are commonly used in industrial, automotive, and aerospace applications where standard magnets may not suffice.

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