NdFeB Super Strong Ring Magnet

/NdFeB Super Strong Ring Magnet
  • Super Strong Ring Magnet

NdFeB Super Strong Ring Magnet, Super Strong Ring Neodymium Magnet, Strong Ring NdFeB Magnet, N45 Rare Earth Permanent Neodymium Magnet, Double Ni Plating NdFeB Rings

Product Name: NdFeB Super Strong Ring Magnet
Magnet ID:Ring-Ø30xØ20×7-N45-Ni
+ Highest Energy of All Permanent Magnets
+ Moderate Temperature Stability
+ High Coercive Strength
+ Moderate Mechanical Strength

Description Neodymium(NdFeB) magnet
Material Sintered Neodymium-Iron-Boron
Max Working Temperature Grade Max. operating temperature
N35-N54 80°C (176°F)
33M-52M 100°C (212°F)
30H-50H 120°C (248°F)
30SH-46SH 150°C (302°F)
30UH-42UH 180°C (356°F)
30EH-38EH 200°C (392°F)
28AH-33AH 220°C (428°F)
Coating Zn,Ni,Ni-Cu-Ni,Gold,Epoxy and so on
Magnet Shape Including Disc, Cylinder, Block, Bar, Ring, Countersunk, Segment, Trapezoid, Irregular shapes and more.Customized shapes for Neodymium(NdFeB) Magnet are available.
Technology Advantage Advanced R&D center,professional QC team and quality control system makes us take the lead in our industry
Delivery Advantage The lead time must be 2-5 days quicker than industry average because of more flexible machine process control.
Price Advantage The price is cheaper than industry average because of an excellent and efficient management system.
The application 1.Electrical energy-Flywheels,Wind Power Generators
2.Automating work-Computer VCM,Copiers,Printers
3.Science and research-ESR,Magnetic,Photon Generation
4.Medicine-Dental Material,MRI
5.Industry-Industrial Robots,Recycling,Air conditioner,Elevator Tractors
6.Audio visual products-Audio products,Televisions,DVD,CD
7.transportation-Small Motors,Sensors,Automobiles,EV,Hybrid cars
8.Telecommunications-mobile communications,PHS

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

Product Range


Magnetisation Grade:         N45
Material: Rare Earth Neo, Neodymium-Iron-Boron (NdFeB), NIB
Magnet ID:              Ring-Ø30xØ20×7-N45-Ni
Plating / Coating:  Nickel (Ni-Cu-Ni) / Double Ni
Shape:         Ring
Ring Magnet Size:
Ring Total Diameter (D):      Ø30 mm
Ring Inner Diameter (d):      Ø20 mm
Ring Total Height (H):        7 mm
Tolerance:         ±0.05 mm
Magnetisation Direction:    Axial  /  Radial
Residual Magnetic Flux Density (Br): 1320-1380 mT (13.2-13.8 kGs)
Energy Density (BH)max:             342-366 KJ/m³  (43-46 MGOe)
Coercivity Force (Hcb):              ≥ 923 kA/m ( ≥ 11.6 kOe)
Intrinsic Coercivity Force (Hcj):    ≥ 955  kA/m ( ≥ 12 kOe)
Maximum Operation Temperature: 80 °C
Delivery Time:           14-35 days


Technical Drawing