Neodymium Disc Magnets
Strong Neodymium Magnet Discs
Neodymium (also known as "NdFeb", "NIB" or "Neo") disc magnets are the most powerful rare-earth magnets available today. Available in disc and cylinder shapes, neodymium magnets have magnetic properties that far exceed all other permanent magnet materials. Neodymium magnet discs are high in magnetic strength, moderately priced and able to perform well in ambient temperatures. As a result, they are the most widely-used rare-earth magnets for industrial, technical, commercial and consumer applications.
Neodymium Disc Magnets in Premium Grades & Finishes
We carry an extensive inventory of neodymium disc magnets in premium grades range from N30 to N52, which is the highest grade available in today's market. Finishes include nickel plated, gold or uncoated, and sizes range from micro-sized disc magnets measuring 0.1" in diameter to large cylinder magnets that hold up to 68 lbs.
* $15.00 total minimum order (excluding shipping & tax if applicable) - Items can be combined to reach the minimum amount.
Happy Holidays from the Magnetshop Team! |
Neodymium Disc Magnet Features & Characteristics
Neodymium Magnets Approximate Pull Information
*Note: The approximate pull info listed is for reference only. These values are calculated assuming the magnet will be attached to a flat, ground 1/2" thick mild steel plate. Coatings, rust, rough surfaces, and certain environmental conditions can significantly reduce the pull force. Please be sure to test the actual pull in your application. For critical applications, it is suggested that the pull be de-rated by a factor of 2 or more, depending on the severity of a potential failure.
Neodymium Disc Magnet Manufacturing Methods & Finishes
Our neodymium discs are sintered for optimal magnetic strength. Unless otherwise specified, these disc magnets are magnetized axially (the magnetic field runs through the thickness of the magnet, with each pole located on the flat surfaces of the disc). Available as either uncoated, or with finishing options including nickel (Ni-Cu-Ni) and gold (Ni-Cu-Ni-Au) plated coatings for maximum protection against corrosion & oxidation.
Standard Dimensional Tolerances for NdFeB Disc Magnets
Standard diameter tolerances for Rare Earth Magnets (SmCo & NdFeB) based on the following dimensions:
- +/- 0.004" on dimensions ranging from 0.040" to 1.000".
- +/- 0.008" on dimensions ranging from 1.001" to 2.000".
- +/- 0.012" on dimensions ranging from 2.001" to 3.000".
*Tolerance on thickness is +/-0.004” regardless of size.
Maximum Operating Temperatures for Neodymium Magnet Grades
Here are the maximum operating temperatures and curie temperatures for standard and specialty neodymium magnet grades:
|
NdFeB Material |
Max Operating Temp |
Curie Temp |
||
|
Grade |
ºF |
ºC |
ºF |
ºC |
|
N |
176 |
80 |
590 |
310 |
|
M |
212 |
100 |
644 |
340 |
|
H |
248 |
120 |
644 |
340 |
|
SH |
302 |
150 |
644 |
340 |
|
UH |
356 |
180 |
662 |
350 |
|
EH |
392 |
200 |
662 |
350 |
|
VH |
446 |
230 |
662 |
350 |
*Note: The maximum operating temperature for a magnet is dependent on the magnetic circuit that it is operating in. The values above are a guide assuming that the magnet is operating at a permeance coefficient of 1. The higher the permeance coefficient, the higher the temperature the magnet can operate in. The values noted indicate the temperatures at which the magnetic characteristics begin to decline more rapidly. The Curie temperature (at which the magnets become demagnetized and cannot be remagnetized) for standard neodymium magnets is 310°C or 590°F.
Neodymium Disc Magnet Applications
Neodymium disc magnets have remarkable holding power for their size, so they are ideal for all types of applications. From craft & model-making projects to high-performance motors, medical devices, audio components, science and research projects, trade shows, POP displays, and much more. Visit our applications page to learn more.
|
|
|
Scroll Left & Right ►
Custom Neodymium Disc Magnets - How Can We Help ?
We can custom-manufacture neodymium disc magnets to your exact specifications. Contact us today or send us a special request and our experienced team of engineers will work with you to determine the best solution for your specialty project. Our sister company, Integrated Magnetics, has over 60 years of experience in manufacturing complex magnetic assemblies for more technical applications. Not all of our neodymium disc magnets are shown on this website, let us know what you are looking for and our staff will help you determine the best solution for your project’s requirements.
Learn More About:
