N45SH Neodymium Ring Magnets

/N45SH Neodymium Ring Magnets
  • N45SH Neodymium Ring Magnets

N45SH Neodymium Ring Magnets, Ring NdFeB Magnet, Neodymium Permanent Magnetic Ring, NdFeB Magnet Ring, Strong Neodymium-Iron-Boron Ring Magnets

Product Name:N45SH Neodymium-Iron-Boron Ring Magnets
Magnet ID:Ring-Ø20xØ12x12mm-N45SH-Ni
+ Highest Energy of All Permanent Magnets
+ Moderate Temperature Stability
+ High Coercive Strength
+ Moderate Mechanical Strength

Our magnet sets often come with plastic dividers that make separation easier. We would recommend keeping these handy to provide a buffer between magnets when they are not in use.
Slide, Don’t Pull

When it comes to magnets, it is always better to slide them apart laterally than to try to pull them apart. Although you may be strong, the magnetic pull force could be stronger. Sliding them is easier, because you are gradually pulling the attracting poles from one another. Plus, with this method, the chance of placing a finger or body part in between the two magnets is lower.
Hand and Assisted Separation

For most smaller, lower strength magnets you can simply separate them with your hands. However, with stronger magnets, you may need the help of a nonmagnetic wedge. You can simply use a wedge of wood, place it in between the two magnets and divide them.
Keep Magnets Divided

Once divided, make sure to put the magnets at an ample distance apart, so that they will not be attracted to one another. Magnets can pull each other through the air and the brittleness of neodymium magnets will cause them to shatter upon impact. The chance of shattering increases as the distance increases.

You can also try using magnets that are of a lesser power or that have specialty coatings for specific projects. If you are doing a craft project and want a lower power, try out one of our specialty coating magnets. If you aren’t sure what magnets to purchase for your project, feel free to contact us for assistance!

  • Affordable price
  • Customized magnet is Available
  • Any payment accepted
  • Fast shipping, Worldwide delivery
  • Quality guaranteed
  • Offer free neo magnets solution

Product Range


Magnet Shape: Ring
Material: neodymium-iron-boron (NdFeB), neodymium, neo
Coating: Nickel (Ni-Cu-Ni)
Magnetic Grade:         N45SH
Magnetisation Direction: Axial
Residual Magnetic Flux Density (Br): 13.2-13.7 KGs (T):  1.32-1.37 T
Energy Density (BH)max:              42-45 MGOe   334-358 KJ/m³
Coercivity Force (Hcb):              ≥12.4 KOe  ≥987 KA/m
Intrinsic Coercivity Force (Hcj):    ≥19 KOe    ≥1512 KA/m
Maximum Operation Temperature: 150 °C
Total diameter D: Ø 20 mm
Inner diameter d: Ø 12 mm
Total height H:        12 mm
Tolerance:         ±0.05 mm
Delivery time           3-14 days

Technical Drawing