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SuperMagnetMan Neodymium Ring Magnet.  Used as medical magnets, motor magnets, sensor magnets, consumer electronics magnets.  These ring magnets are strong rare earth neodymium magnets also used as automotive magnets.

0.030" (0.76mm) OD x 0.020" (0.50mm) ID x 0.020" (0.50mm) long, N52 Rare Earth Neodymium Ring Magnet, Magnetized across the diameter. Nickel Plated. 

Minimum Order Quantity (MOQ) = 10 pcs

Neodymium tube magnets are great for use as medical magnets, sensor magnets, motor magnets, and consumer electronics magnets.  The long “donut hole” shape allows for the magnet to fit on a post to secure it in place.

Tube Magnets can be custom manufactured in different ways so that they can be magnetized in a specific direction.  Below is an overview of the different direction of magnetization options, however, the direction of magnetization can only be set during the manufacturing process and cannot be changed once the magnet is made.

Through the Length:  Tube magnets where a magnetic field travels from the ID of the ring magnet to the OD of the ring magnet, or from the bottom to the top.

Through the Diameter:  Tube magnets where a magnetic field flows from the OD of the “north pole” to the OD of the “south pole”.  The ID of the ring magnet will have a magnetic field that is straight and crosses uniformly across the ID. 

SM Magnetics, the engineering and manufacturing sister company of SuperMagnetMan, has been assisting Corporate customers for many years with their custom tube magnet and magnetic assembly applications.

SM Magnetics works with Corporate customers to optimize their design and then manufacture the specific tube magnet or magnetic assembly to meet the required specification. SM Magnetics has their own ISO certified factories and controls the entire manufacturing process. For assistance from a technical representative at SM Magnetics, click here for the contact info.

Or, if you need assistance from SuperMagnetMan with your neodymium disc magnet, Contact us, or use our online custom magnet quote form.

For a list of neodymium magnet materials and their characteristics, visit our Neodymium Magnet Table section.  And as always use care and caution when handling neodymium magnets, as outlined in our Magnet Safety section.



Regular price $0.80
Inside Diameter0.020" (0.50mm)
Max Working Temp60°C
Outside Diameter0.030" (0.76mm)
StrengthNeodymium 52
Thickness0.020" (0.50mm)
Direction of Magnetism Across the diameter

In Stock: 1196

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