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Ningbo Sunrise Magnetic Materials Co., Ltd.
Ningbo Sunrise Magnetic Materials Co., Ltd.  

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Sintered NdFeB Permanent Magnets with Ring Shape for medic 

Payment Terms: T/T 
Place of Origin: Zhejiang, China (Mainland) 
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Product Detail

Model No.: SR-N004
Production Capacity: 2000tons per year
Delivery Date: 25 days after receiving dep...
Trademark: sunrise
Standard: SGS TESTING
Shape: Ring/Round
Means of Transport: Ocean,Air
Packing: standard exporting packing
Origin: China
Serial/Model NO.: SR-N004
Coating: NiCuNi,Zn and Epoxy...

Big Ring Magnet
the most powerful permanent magnets
We can offer the plating included: Ni, Zn, Ni-Cu-Ni, Silver, Gold, Passivation, Epoxy Resin

product: Super Quality Ring Magnet with four counter sunk hole

Neodymium Iron Boron (NdFeB) magnets, the most powerful permanent magnets available today, possess high energy up to 52MGOe and wonderful coercive force. As the third generation of Rare Earth magnet, NdFeB magnets are less brittle than SmCo, and the cost is much more resonable.
Sintered NdFeB Magnets are prone to corrosion in humid environments. So they usually need surface treatment according to customer's requirements to protect magnet. We can offer the plating included: Ni, Zn, Ni-Cu-Ni, Silver, Gold, Passivation, Epoxy Resin, etc.
Sintered NdFeB magnets are widely used in DC motors, linear motors, loud speakers, MRI, medical apparatus, transmission machine, lifting machine, and so on.
1. ProcessFlow:
Raw Material------Mixing-----Melting-----Powder-----Pressing-----Sintering----Magnetic Testing-----Cutting & Grinding-----Coating-----Inspection-----Packing and shipping

2. It can be easily formed into various sizes.
3. Smaller size and lighter weight in designing devices
4. Grade: N35-N52, 33M-50M, 30H-48H, 30SH-45SH, 30UH-40UH, 28EH-38EH, 30AH-33AH.
5.High energy range from 30MGOe to 53MGOe with wonderful coercive force
6. For most applications, coating or plating is recommended.
7. Coatings: Ni, Zn, gold, copper, epoxy, chemical, parylene and so on.
8. Advantages:
     a) High energy
     b) Very high Hc and Hci output
     c) More economical than SmCo
     d) Wonderful performance at ambient temperature
9. Disadvantages:
     a) Working temperature is below 220°C.
     b) Prone to oxidation than other magnet alloys
10. Applications: Widly used in industrial areas and Micro products, such as Motor, sensors,  loudspeaker, windmill, Auto, National defence, Speaker, Computer, Biology project, Medical treatment, Instrument and Meter etc.
Magnetic Characteristics And Physical Properties of Sintered Nd-Fe-B
CharactreisticRemanenceCoerciv ForceIntrinsic CoerciveMax Enery ProductMaximum working
GradeBr mb(KG)hcb Koe(KA/m)iHC Koe(KA/m)(BH) max     temperature
KJ/m2(MGOe)                    Tw°C
N351170-1210≥10.8 (≥860)≥12 (≥955)263-287(33-36)80
N381210-1250≥10.8 (≥860)≥12 (≥955)287-310(36-39)80
N401250-1280≥11.6 (≥923)≥12 (≥955)302-326(38-41)80
N421280-1320≥11.6 (≥923)≥12 (≥955)318-342(40-43)80
N451320-1380≥11.0 (≥876)≥12 (≥955)342-366(43-46)80
N481380-1420≥10.5 (≥835)≥12 (≥955)366-390(46-49)80
N501380-1450≥10.5 (≥835)≥11 (≥955)374-406(47-51)80
N521430-1480≥10.8 (≥860)≥11 (≥876)398-422(50-53)80
35M1170-1210≥10.8 (≥860)≥14 (≥1114)263-287(33-36)100
38M1210-1250≥11.0 (≥876)≥14 (≥1114)287-310(36-39)100
40M1250-1280≥11.4 (≥907)≥14 (≥1114)302-326(38-41)100
42M1280-1320≥11.6 (≥923)≥14 (≥1114)318-342(40-43)100
45M1320-1380≥11.8 (≥939)≥14 (≥1114)342-366(43-46)100
48M1360-1400≥11.8 (≥939)≥14 (≥1114)366-390(46-49)100
50M1400-1450≥13.0 (≥1033)≥14 (≥1114)382-406(48-51)100
33H1130-1170≥10.6 (≥844)≥17 (≥1353)247-263(31-33)120
35H1170-1210≥11.0 (≥876)≥17 (≥1353)263-287(33-36)120
38H1210-1250≥11.2 (≥890)≥17 (≥1353)287-310(36-39)120
40H1250-1280≥11.5 (≥915)≥17 (≥1353)302-326(38-41)120
42H1280-1320≥12.0 (≥955)≥17 (≥1353)318-342(40-43)120
45H1320-1380≥12.0 (≥955)≥17 (≥1353)335-366(42-46)120
46H1330-1380≥12.2 (≥972)≥16 (≥1274)350-374(44-47)120
48H1360-1430≥12.5 (≥995)≥16 (≥1274)366-390(46-49)120
33SH1130-1170≥10.6 (≥844)≥20 (≥1672)247-263(31-33)150
35SH1170-1210≥11.0 (≥876)≥20 (≥1672)263-287(33-36)150
38SH1210-1250≥11.4 (≥907)≥20 (≥1672)287-310(36-39)150
40SH1250-1280≥11.8 (≥939)≥20 (≥1672)302-326(38-41)150
42SH1280-1320≥11.8 (≥939)≥20 (≥1672)320-342(40-43)150
45SH1320-1380≥12.6 (≥1003)≥20 (≥1592)342-366(43-46)150
33UH1130-1170≥10.7 (≥852)≥25 (≥1990)247-263(31-33)180
35UH1170-1210≥10.7 (≥852)≥25 (≥1990)263-287(33-36)180
38UH1210-1250≥11.4 (≥907)≥25 (≥1990)287-310(36-39)180
40UH1250-1280≥11.4 (≥907)≥25 (≥1990)302-326(38-41)180
30EH1080-1130≥9.5 (≥756)≥30 (≥2388)223-247(28-31)200
33EH1130-1170≥10.2 (≥812)≥30 (≥2388)247-263(31-33)200
35EH1170-1210≥10.2 (≥812)≥30 (≥2388)263-287(33-36)200
38EH1210-1250≥11.4 (≥907)≥30 (≥2388)287-310(36-39)200
30AH1080-1130≥10.2 (≥812)≥35 (≥2785)223-255(28-32)220
33AH1120-1170≥10.2 (≥812)≥35 (≥2785)247-271(31-34)220
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Tel: 86-574-87990226
Fax: 86-574-88113475
Mobile: 133 5574 6691
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Company Info

Ningbo Sunrise Magnetic Materials Co., Ltd. [China (Mainland)]


Business Type:Manufacturer, Trading Company
City: Ningbo
Province/State: Zhejiang
Country/Region: China (Mainland)

NANCYZOU:   skype
ZOU:   qq

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