Description
Technical
Downloads
![](/images/magdir/ring-6-0.5.png)
- Dimensions: 3" od x 1/4" id x 1/2" thick
- Tolerances: ±0.004" x ±0.004" x ±0.004"
- Material: NdFeB, Grade N42
- Plating/Coating: Ni-Cu-Ni (Nickel)
- Magnetization Direction: Axial (Poles on Flat Ends)
- Weight: 15.2 oz. (431 g)
- Pull Force, Case 1: 148.4 lbs
- Pull Force, Case 2: 343.8 lbs
- Max Operating Temp: 176ºF (80ºC)
- Brmax: 13,200 Gauss
- BHmax: 42 MGOe
These 3" rings are some of the most powerful magnets on the market. Useful for the STRONGEST holding applications. They are freakishly powerful and should only be purchased by users familiar with the proper handling of very large neodymium magnets. Two of these stuck together are impossible to separate by hand.
It is recommended that they be handled with the assistance of at least one other person. As with any rare-earth magnet of this size, they can pinch, crush, or otherwise cause extreme physical harm if they are not handled with the greatest of care and respect.
You must read and understand our Neodymium Magnet Safety Page before ordering these magnets. You must also agree to our Terms and Conditions prior to purchasing. THESE ARE VERY DANGEROUS!
GROUND SHIPPING ONLY on this item.
![]() | Pull Force, Case 1 vs. distance: Magnet to a Steel Plate. |
![]() | Pull Force, Case 2 vs. distance: Between 2 Steel Plates. |
![]() | Pull Force, Case 3 vs. distance: Magnet to Magnet. |
![]() | Pull Force, Case 4 vs. distance: Magnet to Magnet Repulsion. |
![]() | Click here for a depiction of the magnetic field. |
![]() | View B-H curves for this magnet. |
![]() | Click here to download a PDF Specification Sheet. |
![]() | Click here to download a PDF drawing of this product. |
![]() | Click here to download a Certificate of Compliance for this product. |
![]() | Click here to download a RoHS Statement of Compliance for this product. |
![]() | Click here to download a Material Safety Data Sheet (MSDS) for this product. |
![]() | Click here to download a Conflict Minerals Reporting Template (CMRT). |
![]() | Click here to download a Certificate of Origin for this product. |
![]() | Click here for a REACH compliance statement. |
![]() | Click here to download a .STEP file (3D model). |
![]() | Click here to download an .IGS file (3D model). |
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