Super Strong Sintered Neodymium Block Rare Earth Permanent Magnet

• Application: Speaker Magnet, Industrial Magnet, Jewelry Magnet, Solenoid, Motor Magnet
• Shape: Circular
• Coating: Nickel
• Grade: N35-N54-36H
• Product Name: Circular Magnets
• Size: Customed
• Model NO.: HL-36
• Quality Management: ISO/Ts16949:2009
• Environmental Approved: RoHS
• Plating/Coating: Ni, Zn, Gold, Copper, Epoxy, etc
• Bh)Max: 28-54mmgoe
• Tw Max: 80-220 Degree
• Capacity Each Month: 80tons
• Composition: Neodymium Magnet
• Transport Package: Standard Air and Vessel Package
• Specification: ROHS
• Trademark: COCO
• Origin: China Mainland
• HS Code: 85051110
• Production Capacity: 2000 Tons Per Year

Product Description

Super Strong Sintered Neodymium Block Rare Earth Permanent Magnet
Permanent Magnet Materials Introduction
Permanent magnets are used in the following major groups: acoustic transducers, motors and generators, magneto mechanical devices, and magnetic field and imaging systems. You will find permanent magnets in many products, such as televisions, telephones, computers, audio systems and automobiles.
The permanent magnet family consists of non-rare earth permanent magnets and rare earth magnets. The non-rare earth magnets include Alnico magnets and Ceramic magnets. Rare earth magnets include Sm-Co magnets and NdFeB magnets (Neodymium-Iron-Boron).
Although non-rare earth magnets are used in the majority of these applications due to their economic cost, rare earth permanent magnets have many distinguishing characteristics, such as a large Maximum Energy Product, Two major families of rare earth permanent magnets, Sm-Co magnets and NdFeB magnets.
How to Choose Permanent Magnet Materials
Each permanent magnet material discussed above has its own pros and cons. How to choose the right one for your particular application is a challenge to any user. A balance between cost and performance must be considered in selecting of permanent magnet material. In Reference Information section of this page, several reference books are listed. Following is a Comparison Table to help you select a right permanent magnet material for your applications.
Permanent Magnet Material Comparison Table Note: The data listed in the table are for reference only

Products Details:

1. Widely Performance: N35-N54, N35M-N52M, N33H-N50H, N33SH-N45SH, N30UH-N42UH, N30EH-N38EH, N28AH-N33AH;
   2. Best Price: We are manufacture in Ningbo. We have a whole set of production process equipment from Dosage to Cutting.

1. Fast delivery: 8-15days.

Product Description:
1. Materials: Ne-Fe-B
2. Shape: Various as you wish
3. Certificate: ISO/TSI6949: 2009



Specifications:
A. Materials: Neodymium-Ferrum-Boron;
B. Grades: N35-N54, 35M-52M, 33H-50H, 33SH-45SH, 30UH-42UH, 30EH-38EH, and 28AH-33AHB. 
C. Coating: Various coatings to protect the magnets, such as Ni, Zn, gold, copper, epoxy, chemical, parylene and so on;
D. Shape: Block, Ring, Disc, Cylinder, Arc(Segment), Half Ring, and Customized Design;
E. Size: customized size per your requirements, largest block length of 150mm, biggest ring of D220mm, smallest thickness of 0.5mm
F. Performance: High coercive force (Hcb) can reach 9.7kOe (772KA/M), the max operation temp (Tw) is up to 220 degree centigrade or 380 curie temperature;
G. Applications: Magnet Separators, Sensors, Motors, Rotors, Wind turbines, Wind generators, Loudspeakers, Magnetic hooks, Magnetic holder, Filters Automobiles Magnetic jewelries, toys, magnetic buttons, Magnetic therapy and so on;

Production process: 
Raw Materials-->Mixture--->Vacuum Melting--- > Powder Production--- >Molding ---> Vacuum Sintering--- > Testing--- >Mechanical Processing--- > Surface Coating--- >Magnetized--- > Inspecting--- > Packing and Shipping. 



Directions of Magnetization:
a. Thickness Magnetized
b. Axially Magnetized 
c. Diametrally Magnetized
d. Multi-poles magnetized
e. Radial Magnetized 
f. Customized specific requirements magnetized

Inquiry   
To receive a quote for Neodymium Arc magnets, please provide the following details: 

1. Outer Diameter, Inner Diameter or, Degree of Angle;
2. Thickness, Length;
3. Grades;
4. Coating;
5. Tolerances and Magnetization Direction (North on the Outside Face / South on the Outside Face / Magnetized through Circumference / Magnetized through Thickness ). 
6. Testing Conditions

neodymium magnet packing details and delivery




Welcome to inquiry!

We can provide almost all grades in large quantity. In addition, if you customized products,
    
Contact Person: Hola  Mb: 008615888186003  

 

Magnetic  properties  of  Sintered  Neodymium  Magnet  (NdFeB  magnet):
Grade	Remanence	Coercive Force	Intrinsic  Coercive  Force	Max.   energy  product	Max. Operating Temperature
	Br mT (kGs)	Hcb kA/m (kOe)	Hcj kA/m (kOe)	(  BH  )max  kJ/m 3 (MGOe)	Tw
N35	1170-1220 (11.7-12.2)	≥   868 (  ≥ 10.9)	≥   955 (  ≥   12)	263-287 (33-36)	80  deg
N38	1220-1250 (12.2-12.5)	≥   899 (  ≥ 11.3)	≥   955 (  ≥   12)	287-310 (36-39)	80  deg
N40	1250-1280 (12.5-12.8)	≥   907 (  ≥ 11.4)	≥   955 (  ≥   12)	302-326 (38-41)	80  deg
N42	1280-1320 (12.8-13.2)	≥   915 (  ≥ 11.5)	≥   955 (  ≥   12)	318-342 (40-43)	80  deg
N45	1320-1380 (13.2-13.8)	≥   923 (  ≥ 11.6)	≥   955 (  ≥   12)	342-366 (43-46)	80  deg
N48	1380-1420 (13.8-14.2)	≥   923 (  ≥ 11.6)	≥   876 (  ≥   12)	366-390 (46-49)	80  deg
N50	1400-1450 (14.0-14.5)	≥   796 (  ≥ 10.0)	≥   876 (  ≥   11)	382-406 (48-51)	60  deg
N52	1430-1480 (14.3-14.8)	≥   796 (  ≥ 10.0)	≥   876 (  ≥   11)	398-422 (50-53)	60  deg
30M	1080-1130 (10.8-11.3)	≥   796 (  ≥ 10.0)	≥   1114 (  ≥   14)	223-247 (28-31)	100  deg
33M	1130-1170 (11.3-11.7)	≥   836 (  ≥ 10.5)	≥   1114 (  ≥   14)	247-263 (31-33)	100  deg
35M	1170-1220 (11.7-12.2)	≥   868 (  ≥ 10.9)	≥   1114 (  ≥   14)	263-287 (33-36)	100  deg
38M	1220-1250 (12.2-12.5)	≥   899 (  ≥ 11.3)	≥   1114 (  ≥   14)	287-310 (36-39)	100  deg
40M	1250-1280 (12.5-12.8)	≥   923 (  ≥ 11.6)	≥   1114 (  ≥   14)	302-326 (38-41)	100  deg
42M	1280-1320 (12.8-13.2)	≥   955 (  ≥ 12.0)	≥   1114 (  ≥   14)	318-342 (40-43)	100  deg
45M	1320-1380 (13.2-13.8)	≥   995 (  ≥ 12.5)	≥   1114 (  ≥   14)	342-366 (43-46)	100  deg
48M	1360-1430 (13.6-14.3)	≥   1027 (  ≥   12.9)	≥   1114 (  ≥   14)	366-390 (46-49)	100  deg
50M	1400-1450 (14.0-14.5)	≥   1033 (  ≥   13.0)	≥   1114 (  ≥   14)	382-406 (48-51)	100  deg
30H	1080-1130 (10.8-11.3)	≥   796 (  ≥ 10.0)	≥   1353 (  ≥   17)	223-247 (28-31)	120  deg
33H	1130-1170 (11.3-11.7)	≥   836 (  ≥ 10.5)	≥   1353 (  ≥   17)	247-271 (31-34)	120  deg
35H	1170-1220 (11.7-12.2)	≥   868 (  ≥ 10.9)	≥   1353 (  ≥   17)	263-287 (33-36)	120  deg
38H	1220-1250 (12.2-12.5)	≥   899 (  ≥ 11.3)	≥   1353 (  ≥   17)	287-310 (36-39)	120  deg
40H	1250-1280 (12.5-12.8)	≥   923 (  ≥ 11.6)	≥   1353 (  ≥   17)	302-326 (38-41)	120  deg
42H	1280-1320 (12.8-13.2)	≥   955 (  ≥ 12.0)	≥   1353 (  ≥   17)	318-342 (40-43)	120  deg
45H	1300-1360 (13-13.6)	≥   963 (  ≥ 12.1)	≥   1353 (  ≥   17)	326-358 (43-46)	120  deg
48H	1370-1430 (13.7-14.3)	≥   995 (  ≥ 12.5)	≥   1353 (  ≥   17)	366-390 (46-49)	120  deg
30SH	1080-1130 (10.8-11.3)	≥   804 (  ≥ 10.1)	≥   1592 (  ≥   20)	223-247 (28-31)	150  deg
33SH	1130-1170 (11.3-11.7)	≥   844 (  ≥ 10.6)	≥   1592 (  ≥   20)	247-271 (31-34)	150  deg
35SH	1170-1220 (11.7-12.2)	≥   876 (  ≥ 11.0)	≥   1592 (  ≥   20)	263-287 (33-36)	150  deg
38SH	1220-1250 (12.2-12.5)	≥   907 (  ≥ 11.4)	≥   1592 (  ≥   20)	287-310 (36-39)	150  deg
40SH	1240-1280 (12.5-12.8)	≥   939 (  ≥ 11.8)	≥   1592 (  ≥   20)	302-326 (38-41)	150  deg
42SH	1280-1320 (12.8-13.2)	≥   987 (  ≥ 12.4)	≥   1592 (  ≥   20)	318-342 (40-43)	150  deg
45SH	1320-1380 (13.2-13.8)	≥   1003 (  ≥   12.6)	≥   1592 (  ≥   20)	342-366 (43-46)	150  deg
28UH	1020-1080  (10.2-10.8)	≥   764 (  ≥ 9.6)	≥   1990 (  ≥   25)	207-231 (26-29)	180  deg
30UH	1080-1130  (10.8-11.3)	≥   812 (  ≥ 10.2)	≥   1990 (  ≥   25)	223-247 (28-31)	180  deg
33UH	1130-1170 (11.3-11.7)	≥   852 (  ≥ 10.7)	≥   1990 (  ≥   25)	247-271 (31-34)	180  deg
35UH	1180-1220 (11.8-12.2)	≥   860 (  ≥ 10.8)	≥   1990 (  ≥   25)	263-287 (33-36)	180  deg
38UH	1220-1250 (12.2-12.5)	≥   876 (  ≥ 11.0)	≥   1990 (  ≥   25)	287-310 (36-39)	180  deg
40UH	1240-1280 (12.5-12.8)	≥   899 (  ≥ 11.3)	≥   1990 (  ≥   25)	302-326 (38-41)	180  deg
28EH	1040-1090 (10.4-10.9)	≥   780 (  ≥ 9.8)	≥   2388 (  ≥   30)	207-231 (26-29)	200  deg
30EH	1080-1130  (10.8-11.3)	≥   812 (  ≥ 10.2)	≥   2388 (  ≥   30)	223-247 (28-31)	200  deg
33EH	1130-1170 (11.3-11.7)	≥   836 (  ≥ 10.5)	≥   2388 (  ≥   30)	247-271 (31-34)	200  deg
35EH	1170-1220 (11.7-12.2)	≥   876 (  ≥ 11.0)	≥   2388 (  ≥   30)	263-287 (33-36)	200  deg
38EH	1220-1250 (12.2-12.5)	≥   899 (  ≥ 11.3)	≥   2388 (  ≥   30)	287-310 (36-39)	200  deg
30AH	1080-1120 (10.8-11.2)	≥   812 (  ≥ 10.2)	≥   2785 (  ≥   35)	223-255 (28-32)	220  deg
33AH	1120-1170 (11.2-11.7)	≥   812 (  ≥ 10.2)	≥   2785 (  ≥   35)	247-271 (31-34)	220  deg
Physical  and  Mechanical  Properties  of  Neodymium  Magnet:
Thermal  Conductivity			7.7  kcal/m-h-° C
Young' s  Modulus			1.7  x  104  kg/mm2
Bending  Strength			24  kg/mm2
Compressive  Strength			80  kg/mm2
Electrical  Resistivity			160  µ -ohm-cm/cm2
Density			7.4-7.55  g/cm3
Vickers  Hardness			500  -  600
Available  coatings  for  sintered  Neodymium  Magnet  (NdFeB  magnet):
Available  Coatings:
Surface	Coating	Thickness  (Microns)	Color	Resistance
Passivation		1	Silver  Grey	Temporary  Protection
Nickel	Ni+Ni	10.0-20	Bright  Silver	Excellent  against  Humidity
	Ni+Cu+Ni
Zinc	Zn	8.0-20	Bright  Blue	Good  Against  Salt  Spray
	C-Zn		Shinny  Color	Excellent  Against  Salt  Spray
Tin	Ni+Cu+Sn	15-20	Silver	Superior  Against  Humidity
Gold	Ni+Cu+Au	10.0-20	Gold	Superior  Against  Humidity
Copper	Ni+Cu	10.0-20	Gold	Temporary  Protection
Epoxy	Epoxy	15-25	Black,   Red,   Grey	Excellent  Against  Humidity &   Salt  Spray
	Ni+Cu+Epoxy
	Zn+Epoxy
Chemical	Ni	10.0-20	Silver  Grey	Excellent  Against  Humidity
Parylene	Parylene	5.0-20	Grey	Excellent  Against  Humidity,   Salt  Spray.   Superior  Against  Solvents,   Gases,   Fungi  and  Bacteria. FDA  Approved.