Sintered Neodymium Countersink Ring Magnet

/Sintered Neodymium Countersink Ring Magnet
  • Sintered Neodymium Countersink Ring Magnet

Sintered Neodymium Countersink Ring Magnet, N48 Ring Neodymium Magnet with Countersink, Ring NdFeB Magnet with Countersink, NdFeB Ring with Countersink Hole, Sintered Ring Magnet with Countersunk

Product Name: Sintered Neodymium Countersink Ring Magnet
Model No:NCR-8020-N48
Specifications:
1. Powerful permanent pot magnet
2. High quality & best price
3. High working temperature
4. Good corrosion resistance
Original Manufacturer:HangSeng Magnetech
Solution:Customized your required material, size, coating, shape, grade, pull force and woking temperature
Origin:Ningbo, Zhejiang, China
Supply Ability:50000pcs/day
Certification:SGS,TUV,ISO9001,ROHS,TS16949
Applications:magnetic holding, lifting, antenna Mounting, positioning, retrieving and much more.

The neodymium atom also can have a large magnetic dipole moment because it has 7 unpaired electrons in its electron structure as opposed to (on average) 3 in iron. In a magnet it is the unpaired electrons, aligned so they spin in the same direction, which generate the magnetic field. This gives the Nd2Fe14B compound a high saturation magnetization (Js ~1.6 T or 16 kG) and typically 1.3 teslas. Therefore, as the maximum energy density is proportional to Js2, this magnetic phase has the potential for storing large amounts of magnetic energy (BHmax ~ 512 kJ/m3 or 64 MG·Oe). This magnetic energy value is about 18 times greater than “ordinary” magnets by volume. This property is higher in NdFeB alloys than in samarium cobalt (SmCo) magnets, which were the first type of rare-earth magnet to be commercialized. In practice, the magnetic properties of neodymium magnets depend on the alloy composition, microstructure, and manufacturing technique employed.

All the Ring Countersunk NdFeB Magnet types can be used for ambient temperature indoor applications where moisture content is low or negligible. NdFeB Pot Magnets are best for maximum pull strength with a small size. Ferrite Pot Magnets can be used for corrosion resistance, marine, low cost and higher temperature applications. Alnico Pot Magnets can be used in higher temperature applications and where the pull force needs to change as little as possible with temperature variation. Alnico Pot Magnets can also be used in corrosion resistance applications. SmCo Pot Magnets can be used for extreme temperature applications and marine / corrosion resistance applications.

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Product Range

Specifications

Magnetisation Grade:         N48
Material: Neodymium-Iron-Boron (NdFeB), Neodymium and Steel
Magnet ID:              NCR-8020-N48
Plating / Coating:  Nickel (Ni-Cu-Ni) / Double Ni
Shape:         Ring with Countersunk Hole (countersink hole)
Countersunk Magnet Size:
Ring Total Out-Diameter (D):       80 mm
Ring Total Inner-Diameter (d):      20 mm
Ring Total Height (H):         15 mm
Small Hole Diameter (d1):      7 mm
Tolerance:         ±0.05 mm
Magnetisation Direction:    Axial  /  Radial
Residual Magnetic Flux Density (Br): 1380-1420 mT (13.8-14.2 kGs)
Energy Density (BH)max:             366-390 KJ/m³  (46-49 MGOe)
Coercivity Force (Hcb):              ≥ 923 kA/m ( ≥ 11.6 kOe)
Intrinsic Coercivity Force (Hcj):    ≥ 876  kA/m ( ≥ 12 kOe)
Maximum Operation Temperature: 80 °C
Delivery Time:           14-35 days

Technical Drawing