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Ningbo LG Manufacturing Co., Ltd.
Ningbo LG Manufacturing Co., Ltd.  

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You are here: home  > Sintered Ndfeb magnet  > High quality permanent Sintered NdFeB magnets

High quality permanent Sintered NdFeB magnets 

Price: 0.1~100.0 USD 
Payment Terms: T/T,L/C,D/A,D/P,WU 
Place of Origin: Zhejiang, China (Mainland) 
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Product Detail

Model No.: NingBoLG50
Production Capacity: 1200 tons yearly
Delivery Date: according to quantity
Shape: cylinder
Composite: NdFeB Magnet
Compositon: Ndfeb magnet
max working temp: 150 degree centigrade
Coating: Ni
size: custom-made
delivery detailes: 15-25days
Means of Transport: Ocean,Land,Air
Packing: according to customers requ...
Application: Speaker Magnet
Type: Permanent
Brand Name: LG
Grade: N40SH
HCJ: >=20
packing: plywood
certificate: ISO9001

Neodymium magnets are mainly made from neodymium, iron, and boron. It is the ideal magnetic material in the world till now and has been used universal

product name  High quality Sintered NdFeB magnets


About NdFeB magnet:

 

Neodymium iron boron ( NdFeB) is a type of rare earth magnetic material. 
NdFeB is the most advanced commercialized permanent magnet material available today.

This material has similar properties as the samarium cobalt except that it is more easily oxidized

and generally doesn't have the same temperature resistance.
However, NdFeB magnets have the highest energy products approaching 52MGOe and are

mechanically stronger than samarium cobalt magents. NdFeB material is more costly by weight than

ceramic or alnico but produces the highest amount of flux per unit of volume or mass amking it very economical for many applicantions. Their high energy products lend themselves to comnpact designs

that result in innovative applications and lower manufacturing costs.
Unprotected NdFeB magnets are subject to corronsion. Surface treatments has ben developed that

allow them to be used in most applications. These treatments include copper, silver,, gold, nickel,

zinc and tin plating and epoxy resin coating.
Beneficial characteristics of NdFeB magnets include their very high energy product, very high

coercive force, and moderate temperature stability. Drawbacks include lower mechanical strength,

and low corrosion resistance when not properly coated or plated.

 

Magnetic Grades and Temperature:

 

The Grade of a magent directly refers to the Maximum Energy Product of the material that composes the magnet. It in no way refers to the physical properties of the magnet. Grade is generally used to describe

how "strong" a permanent magnet material is. The energy products is specified in the unites Gauss Oersted.

One MGOe is 1,000,000 Gauss Obersted. A grade forty (N40) would have a Maximum Energy Product of 40 MGOe.The higher the grade the "stronger" the magnet. 

Magnetic materials have a wide range of working temperatures. The following chart the various materials and their maximum working temperature. NdFeB material
comes in many different heat tolerances but as the heat tolerance increases the maximum available fulx density decreases:


Product: Neodymium Magnet - Rare earth magnets

 

1.Grades:

N30-N52, 35M-48M, 33H-42H, 35SH-45SH, 30UH-40UH, 28EH-38EH.

Magnet N-( N35, N38, N40, N42, N45, N48, N50,N52),

Magnet M-(N35M, N38M, N40M,N42M, N45M, N48M),

Magnet H-(N33H,N35H, N38H, N40H, N42H),

Magnet SH-( N35SH, N38SH, N40SH, N42SH,N45SH),

Magnet UH-( N30UH, N33UH, N35UH, N38UH,N40UH),

Magnet EH-(N28EH, N30EH, N33EH, N35EH,N38EH)

2.Size:

various customized: Block, Disc, Cylinder, Ring, Segment, Irregular, etc.

3.Coating:

Nickel, Ni-Cu-Ni, Zinc, white-blue Zn, Black epoxy resin, Gold and etc.

4.Shapes:

Cylinder,round,disc,rectangle,ring,countersunk,block,Arc coil and we can also manufacture the shape of magnet according to clients' requirement.

5.Package:

standard exporting carton or according to the customer requirments.

6.Materials:

Neodymium-Iron-Boron magnets, Sintered NdFeB magnets

7.Certification:

ISO9001,2008

8.Technology:

Utilizes new   Neodymium Magnet - Rare earth magnets techniques and equipment such as Strip casting, HDDR technology

9.Magnetic properties:

a) High coercive force,

b) (BH)max from 33 to 53MGOe,

c) Max working temperature up to 230°C;

10.Applications:

a) Electro-acoustic field: such as loudspeaker, headphone, earphone, stage sound device, alarm, microphone and so on. Because of good performance, our magnets can provide sound equipments better sensitiveness and susceptibility.
b) Electric products: Permanent magnetic actuator vacuum circuit breaker, magneticlatchingrelay, watt-hour meter, watermeter, sensor, reed switch and so on.
c) Motor areas: VCM, CDVD-ROM, generator, electromotor, servo motor, vibration motor, step motor, DC motor, linear motor and so on. Our magnets with stable performance and high HCJ can work under high temperature which can guarantee your products work better.
d) mechanical equipment: magnetic separator, magnetic holder, and other magnetic machines.
e) Health care: nuclear magnetic resonance spectrometer, medical apparatus and instruments,
magnetic therapy and health care products, fuel-saving magnetizer and so on. Our stable permanent magnets used in health care areas will make people healthier.
f) Other fields: bags magnets, toy magnets, craft gifts and packaging, doors and windows magnets, magnetic locks, magnetic holding devices and so on.

 

 Magnet Coating & Grade:

 

 

Coating and Anti-corrosive of NdFeB Magnet

CoatingNickelNiCuNiZincNi-SnNi-AuNi-AgEpoxy








Corrosiveb ResistanceGoodExcellentGoodGoodGoodGoodVery Good
ColorSilverSilverWhite BlueSilverGoldSilverBlace/Gray

Technical data of sintered NdFeB Magnet

GradeBrmT(kGs)Hcb kA/m (kOe)Hcj kA/m (kOe)BH max kJ/m3 (MGOe)Max. Tw






N351170-1220(11.7-12.2)≥ 868 ( ≥ 10.9)≥ 955 ( ≥ 12)263-287 (33-36)≤ 80 °C
N381220-1250 (12.2-12.5)≥ 899 ( ≥ 11.3)≥ 955 ( ≥ 12)287-310 (36-39)≤ 80 °C
N401250-1280 (12.5-12.8)≥ 907 ( ≥ 11.4)≥ 955 ( ≥ 12)302-326 (38-41)≤ 80 °C
N421280-1320 (12.8-13.2)≥ 915 ( ≥ 11.5)≥ 955 ( ≥ 12)318-342 (40-43)≤ 80 °C
N451320-1380 (13.2-13.8)≥ 923 ( ≥ 11.6)≥ 955 ( ≥ 12)342-366 (43-46)≤ 80 °C
N481380-1420 (13.8-14.2)≥ 923 ( ≥ 11.6)≥ 876 ( ≥ 12)366-390 (46-49)≤ 80 °C
N501400-1450 (14.0-14.5)≥ 796 ( ≥ 10.0)≥ 876 ( ≥ 11)382-406 (48-51)≤ 60 °C
N521430-1480 (14.3-14.8)≥ 796 ( ≥ 10.0)≥ 876 ( ≥ 11)398-422 (50-53)≤ 60 °C
30M1080-1130 (10.8-11.3)≥ 796 ( ≥ 10.0)≥ 1114 ( ≥ 14)223-247 (28-31)≤ 100 °C
33M1130-1170 (11.3-11.7)≥ 836 ( ≥ 10.5)≥ 1114 ( ≥ 14)247-263 (31-33)≤ 100 °C
35M1170-1220 (11.7-12.2)≥ 868 ( ≥ 10.9)≥ 1114 ( ≥ 14)263-287 (33-36)≤ 100 °C
38M1220-1250 (12.2-12.5)≥ 899 ( ≥ 11.3)≥ 1114 ( ≥ 14)287-310 (36-39)≤ 100 °C
40M1250-1280 (12.5-12.8)≥ 923 ( ≥ 11.6)≥ 1114 ( ≥ 14)302-326(38-41)≤ 100 °C
42M1280-1320 (12.8-13.2)≥ 955 ( ≥ 12.0)≥ 1114 ( ≥ 14)318-342 (40-43)≤ 100 °C
45M1320-1380 (13.2-13.8)≥ 995 ( ≥ 12.5)≥ 1114 ( ≥ 14)342-366 (43-46)≤ 100 °C
48M1360-1430 (13.6-14.3)≥ 1027 ( ≥ 12.9)≥ 1114 ( ≥ 14)366-390 (46-49)≤ 100 °C
50M1400-1450 (14.0-14.5)≥ 1033 ( ≥ 13.0)≥ 1114 ( ≥ 14)382-406 (48-51)≤ 100 °C
30H1080-1130 (10.8-11.3)≥ 796 ( ≥ 10.0)≥ 1353 ( ≥ 17)223-247 (28-31)≤ 120 °C
33H1130-1170 (11.3-11.7)≥ 836 ( ≥ 10.5)≥ 1353 ( ≥ 17)247-271 (31-34)≤ 120 °C
35H1170-1220 (11.7-12.2)≥ 868 ( ≥ 10.9)≥ 1353 ( ≥ 17)263-287 (33-36)≤ 120 °C
38H1220-1250 (12.2-12.5)≥ 899 ( ≥ 11.3)≥ 1353 ( ≥ 17)287-310 (36-39)≤ 120 °C
40H1250-1280 (12.5-12.8)≥ 923 ( ≥ 11.6)≥ 1353 ( ≥ 17)302-326 (38-41)≤ 120 °C
42H1280-1320 (12.8-13.2)≥ 955 ( ≥ 12.0)≥ 1353 ( ≥ 17)318-342 (40-43)≤ 120 °C
45H1300-1360 (13-13.6)≥ 963 ( ≥ 12.1)≥ 1353 ( ≥ 17)326-358 (43-46)≤ 120 °C
48H1370-1430 (13.7-14.3)≥ 995 ( ≥ 12.5)≥ 1353 ( ≥ 17)366-390 (46-49)≤ 120 °C
30SH1080-1130 (10.8-11.3)≥ 804 ( ≥ 10.1)≥ 1592 ( ≥ 20)223-247 (28-31)≤ 150 °C
33SH1130-1170 (11.3-11.7)≥ 844 ( ≥ 10.6)≥ 1592 ( ≥ 20)247-271 (31-34)≤ 150 °C
35SH1170-1220 (11.7-12.2)≥ 876 ( ≥ 11.0)≥ 1592 ( ≥ 20)263-287 (33-36)≤ 150 °C
38SH1220-1250 (12.2-12.5)≥ 907 ( ≥ 11.4)≥ 1592 ( ≥ 20)287-310 (36-39)≤ 150 °C
40SH1240-1280 (12.5-12.8)≥ 939 ( ≥ 11.8)≥ 1592 ( ≥ 20)302-326 (38-41)≤ 150 °C
42SH1280-1320 (12.8-13.2)≥ 987 ( ≥ 12.4)≥ 1592 ( ≥ 20)318-342 (40-43)≤ 150 °C
45SH1320-1380 (13.2-13.8)≥ 1003 ( ≥ 12.6)≥ 1592 ( ≥ 20)342-366 (43-46)≤ 150 °C
28UH1020-1080 (10.2-10.8)≥ 764 ( ≥ 9.6)≥ 1990 ( ≥ 25)207-231 (26-29)≤ 180 °C
30UH1080-1130 (10.8-11.3)≥ 812 ( ≥ 10.2)≥ 1990 ( ≥ 25)223-247 (28-31)≤ 180 °C
33UH1130-1170 (11.3-11.7)≥ 852 ( ≥ 10.7)≥ 1990 ( ≥ 25)247-271 (31-34)≤ 180 °C
35UH1180-1220 (11.8-12.2)≥ 860 ( ≥ 10.8)≥ 1990 ( ≥ 25)263-287 (33-36)≤ 180 °C
38UH1220-1250 (12.2-12.5)≥ 876 ( ≥ 11.0)≥ 1990 ( ≥ 25)287-310 (36-39)≤ 180 °C
40UH1240-1280 (12.5-12.8)≥ 899 ( ≥ 11.3)≥ 1990 ( ≥ 25)302-326 (38-41)≤ 180 °C
28EH1040-1090 (10.4-10.9)≥ 780 ( ≥ 9.8)≥ 2388 ( ≥ 30)207-231 (26-29)≤ 200 °C
30EH1080-1130 (10.8-11.3)≥ 812 ( ≥ 10.2)≥ 2388 ( ≥ 30)223-247 (28-31)≤ 200 °C
33EH1130-1170 (11.3-11.7)≥ 836 ( ≥ 10.5)≥ 2388 ( ≥ 30)247-271 (31-34)≤ 200 °C
35EH1170-1220 (11.7-12.2)≥ 876 ( ≥ 11.0)≥ 2388 ( ≥ 30)263-287 (33-36)≤ 200 °C
38EH1220-1250 (12.2-12.5)≥ 899 ( ≥ 11.3)≥ 2388 ( ≥ 30)287-310 (36-39)≤ 200 °C


All of the N series neodymium Magent has a 8% DISCOUNT. 

Price is very competitive, any interest, pls feel  free to contact us.

 Contact person: Candy

eMail: candy@nb-lg.com

mobile: 0086-15967873267

 Tel: 0086- 0574-88193097

Fax: 0086-0574-88193259

skype:  lisinan117                     Welcome to inquiry!



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 Ms. Flora. Han
sales manager
Tel: 86-574-88193097
Fax: 86-574-88193259
Mobile: 186 0661 5061
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Company Info

Ningbo LG Manufacturing Co., Ltd. [China (Mainland)]


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

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