N48M Neodymium-Iron-Boron Rings

/N48M Neodymium-Iron-Boron Rings
  • N48M Neodymium-Iron-Boron Rings

N48M Neodymium-Iron-Boron Rings, Sintered Neodymium Ring Magnets, Strong Sintered Neodymium-Iron-Boron Magnet, Permanent Magnets, Sintered NdFeB Tube Magnet China Supplier

Product Name: N48M Neodymium-Iron-Boron Rings
Magnet ID:Neodymium-N48M-17
+ 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.

Sintered NdFeB Magnet has a very high resistance to demagization.
This color zinc coated magnet are made of N48M material ,
Due to the big size of block magnet with the strong magnetism, in order to making magnet to easy to separate when you take a piece of magnet from a dozen, the finished products will be packed by plastic spacer or wooden plate.
Strong Magnetic block, great for sensor, loudspeaker, magnetic bearing and wind turbine generator and home appliances.
Packaging: Neutral box packaging, inner box , foam inside and other protection, to ensure safely of transportation.
Air package and sea packages are both available..
Delivery time: 8 ~ 20days, depend on customer’s order quantity.
Loading port : Ningbo port or Shanghai Port N45M Super Strong Block Magnet Zn-coating

The temperature coefficient of Intrinsic Coercivity (how Hci varies with temperature), b, for Neodymium is approximately -0.6%/degree C (from ambient, but a range of -0.45%/degree C to -0.6%/degree C is possible depending on the Neodymium grade) between +20 and +120 degrees C.
The temperature coefficient of Remanent Induction (how Br varies with temperature), a, for Neodymium is -0.12%/degree C (from ambient, but a range of -0.08%/degree C to -0.12%/degree C is possible depending on the Neodymium grade).
It should be noted that, strictly speaking, these values for a and b actually vary with temperature and use of stated values beyond 20 to 120 degrees C may result in inaccuracies when designing (actual BH curves at temperatures assist in clarifying for design purposes).

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

Product Range


Magnetisation Grade:         N48M
Material: Sintered Neodymium-Iron-Boron (NdFeB, NIB, REFeB, Neoflux, NeoDelta), Rare Earth Neo
Magnet ID:             Neodymium-N48M-17
Plating / Coating:  Nickel (Ni-Cu-Ni) / Double Ni
N48M Magnet Shape:          Ring
N48M Magnet Size:  Customized
Tolerance:         ±0.05 mm
Magnetisation Direction:    Axial  /  Radial
Residual Magnetic Flux Density (Br): 1360-1430 mT (13.6-14.3 kGs)
Energy Density (BH)max:             366-390 KJ/m³  (46-49 MGOe)
Coercivity Force (Hcb):              ≥ 1027 kA/m ( ≥ 12.9 kOe)
Intrinsic Coercivity Force (Hcj):    ≥ 1114  kA/m ( ≥ 14 kOe)
Maximum Operation Temperature: 100 °C
Delivery Time:           14-35 days

Technical Drawing