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Quick Details

  • Place of Origin: Anhui, China (Mainland)
  • Brand Name: Topmag
  • Model Number: N33-N52
  • Type: Permanent
  • Composite: Neodymium Magnet
  • Shape: Block
  • Application: Moto Magnet
  • Grade: N35-N52 (M.H.SH.UH.EH.AH)
  • Material: Sintered Neodymium-Iron-Boron
  • Surface coating: Nickel,Zn,Gold,Epoxy,phosphoric,Passivation
  • Product Name: Strong Neodymium Magnet
  • Tolerance: 0.03
  • Certification: ISO9001:2008/TS16949/ROHS
  • Item: Wind Motor
  • Grade BH: N54 (NM-EH )
  • Magnetism direction: Customzied Specific Requirements
  • Density: 7.6g/cm3

Packaging & Delivery

Packaging Details Standard export packing: Inner white color box-PCS/CTN, Outer three layer carton with foam material in Carton and label remark product information- CTNS/PLT, CTNS/Wooden PLT---PLTS/Container.
Delivery Time 5-7 days
Product Description

Neodymium magnet ( NdFeBNIB or Neo), the most widely used type of rare-earth magnet, is a permanent magnet made from an alloy of neodymiumiron and boron.

Neodymium magnets have replaced alnico and ferrite magnets in many of the myriad applications in modern technology where strong permanent magnets are required, because their greater strength allows the use of smaller, lighter magnets for a given application. Some examples are:

1.Head actuators for computer hard disks

2.Erase heads for cheap cassette recorders

3.Magnetic resonance imaging (MRI)

4.Mechanical e-cigarette firing switches

5.Locks for doors

6.Loudspeakers and headphones

7.Magnetic bearings and couplings

8.Benchtop NMR spectrometers

9.Electric motors:

a)Cordless tools


c)Lifting and compressor motors

e)Synchronous motors

f)Spindle and stepper motors

g)Electrical power steering

h)Drive motors for hybrid and electric vehicles.f neodymium


10.Electric generators for wind turbines


Customised (Any Size) is Available:



Magnet Coated Including:



Process Control

Physical Properties of Sintered NdFeB:

Temp.Coeff.of.BrNormal:-0.12%/CTemp.Coeff.of HcNormail:-0.72--0.65%/C
LT grade:<0.10%/CLT grade:<-0.50%/C
Denisty7.4-7.6g/cm3Electrical Resistivity114
Vickers hardness600HvThermal conductivity8.95W/mk
Curie Temperature310-340CRelative recoil permeability1.05

NdFeB Process Flow:

Raw Material-----Burdening----Melting----Pressing----Sintering----Inspection----Machiningy----Plating----Last Inspection----Packing




Packaging & Shipping





Q. What is your terms of delivery?



Q. Can you produce according to  samples?

A: We can produce any size  of product according to the samples or technical drawings,first we will test the sample and make a samples report afterwards.


Q. What is your samples policy?

A: We can supply the sample if we have the right  size in stock, samples si free but need customer to pay freight charge.


Q. Do you test all your goods before delivery?

A: Yes, we have 100% test before delivery.


Q. How do you make our business long-term and good relationship?

A:  High quality and competitive price are the basical factors in business relationship, respect and common value help long-term cooperation.


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China (Mainland)
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35 Transactions 520,000+
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Supplier's Trade Assurance Limit: US $100,000
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