Strong NdFeB Ring Magnets

/Strong NdFeB Ring Magnets
  • Strong NdFeB Ring Magnets

Strong NdFeB Ring Magnets, N48 Neodymium Magnet, Ring Sintered NdFeB Magnet, Sintered NdFeB Ring Magnet, Neodymium Ring Magnet, Strong Ring Magnet, Nickel Coating Neodymium Magnet

Product Name:N48 Strong NdFeB Ring Magnets
Magnet ID:Ring-Ø50.8xØ25.4×6.4-N48-Ni
+ Highest Energy of All Permanent Magnets
+ Moderate Temperature Stability
+ High Coercive Strength
+ Moderate Mechanical Strength
Our Superiority: Customized is Available!
* T/T, L/C, Paypal and other payment accepted.
* Orders of any size.
* Worldwide delivery. Fast Shipping.
* Quality and price guaranteed.
* Contact us to discuss your magnet needs.
Hangseng Magnetech Inc. (SUPERMAG, neoi) is your best source for the highest quality magnets, neodymium magnets, magnetic devices and expert application assistance for OEM, point-of-purchase, industrial and retail markets.

NdFeB magnet is a kind of strong permanent magnet. Its lifetime can be 30 years when the working temperature is reasonable.
The most special feature is that its volume is small, but the pull force is very strong.
It can be used almost everwhere in our life, such as industrial , moto, speaker, arts and so on.
Material N35-N52; 33M-50M; 30H-48H; 30SH-45SH ; 28UH-40UH; 28EH-38EH and so on
Plating Ni, Zn, gold, silver, copper, epoxy , Tin, Ni-Ag, Ni-Au, etc.
Magnetized direction Customized.
+/-0.1mm,+/-0.05mm or other.

Neodymium Iron Boron (Nd-Fe-B) or Neodymium magnet
ndfeb magnet are extremely strong for their size. Shapes include rings, blocks, discs and custom. To prevent unwanted oxidation, neodymium magnets are usually finished with zinc, nickel or epoxy coating.
NdFeB magnets can be manufactured by sintering, compression bonding, injection molding, and extrusion. The sintered form holds the highest energy product of up to 48MGOe, while the bonded form holds a lower energy product of up to 10MGOe. The majorities of NdFeB magnets are anisotropic and can only be magnetized in the orientation direction. In general, magnetizing fields of approximately 30KOe are required to saturate NdFeB magnets.

  • 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:         N48
Magnetisation Direction: Axial
Residual Magnetic Flux Density (Br): 13.7-14.1 KGs (T):  1.37-1.41 T
Energy Density (BH)max:              45-49 MGOe   358-390 KJ/m³
Coercivity Force (Hcb):              ≥10.5 KOe  ≥836 KA/m
Intrinsic Coercivity Force (Hcj):    ≥11 KOe    ≥875 KA/m
Maximum Operation Temperature: 80 °C
Total diameter D: Ø 50.8 mm
Inner diameter d: Ø 25.4 mm
Total height H:         6.4 mm
Tolerance:         ±0.05 mm
Delivery time           3-14 days

Technical Drawing