magnetic door holder
1.good quality
2.reasonable price
3.quick delivery
4.best service
brief introduction :
Rare Earth Magnets are including Neodymium(Nd) -Iron(Fe)-Boron(B) types and Samarium(Sm)- Cobalt(Co) classes. The most commonly produced material is neodymium-iron-boron (NdFeB). This group of magnetic materials provides the highest available magnetic energies of any material. NdFeB magnets allow small shapes and sizes with high magnetic fields. Energy product range from 28 MGOe to about 52 MGOe. ndfeb, ndfeb magnet, sintered ndfeb.Super-Strength Rare Earth Magnet.
Sintered NdFeB magnets, have the characteristics of :
*Extreme strong Br Resident induction.
*Excellent demagnetization resistance capability.
*Good Price relative to its high magnetic properties.
*Coating is needed for NdFeB
Surface Treatment Method: Type Information
Metallic Zinc, Nickel, Nickel+Nickel, Copper+Nickel, Nickel+Copper+Nickel,
Gold, Organic Epoxy, Nickel+Epoxy coating
Temporary Surface: Passivation
MAGNETIC AND PHYSICAL CHARACTERISTICS (NdFeB)
No. | Type | Remanence Br | ntrinsic coercive force iHc | intrisic coercive force iHc | Max. energy product (BH) max | Working Temperature | ||||
KGs | T | KOe | KA/m | KOe | KA/m | MGOe | KJ/m³ | 0C | ||
1 | N-35 | 11.7-12.1 | 1.17-1.21 | 10.8-11.5 | 860-915 | ≥12 | ≥955 | 33-35 | 263-279 | ≤80 |
2 | N-36 | 11.9-12.2 | 1.19-1.22 | 10.8-11.5 | 860-915 | ≥12 | ≥955 | 34-36 | 271-287 | ≤80 |
-- | --- | --- | ----- | ----- | ---- | --- | ---- | ------ | ------- | --- |
-- | ---- | ---- | ---- | ---- | --- | ---- | ----- | ------ | ------- | --- |
29 | N-38SH | 12.1-12.5 | 1.21-1.25 | 10.8-11.5 | 860-915 | ≥20 | ≥1592 | 36-38 | 287-302 | ≤150 |
30 | N-40SH | 12.6-12.9 | 1.26-1.29 | 10.8-11.5 | 860-915 | ≥20 | ≥1592 | 38-40 | 303-318 | ≤150 |
-- | ----- | ----- | ----- | ----- | ---- | ---- | ----- | ------ | ------ | ----- |
-- | ----- | ----- | ----- | ----- | ---- | ---- | ----- | ------ | ------ | ----- |
Other Physical Properties (NdFeB )
NdFeB magnet craft :
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