Gold Member Since 2013
Audited Supplier
Ningbo Keke Magnet Industry Co., Ltd.

Permanent Magnetic, Magnetizer, Speaker Magenet manufacturer / supplier in China, offering Ring Magnetic Generator / Loudspeaker Magnetizer, neodymium magnet stop magnet search magnet F300*2 F300X2, magnet neodymium magnet search magnet F200X2 F200*2 and so on.

(/ )

Supplier Homepage Product Permanent Magnet Ring Magnetic Generator / Loudspeaker Magnetizer

Ring Magnetic Generator / Loudspeaker Magnetizer

Purchase Qty.:
(Pieces)
1-9,999 10,000+
FOB Unit Price: US $0.01 US $5
Purchase Qty. (Pieces) FOB Unit Price
1-9,999 US $0.01
10,000+ US $5
Get Latest Price
Production Capacity: 2000t/Y
Transport Package: According to Your Request
Payment Terms: L/C, T/T, Western Union

Request a custom order and have something just for you!

Send Customized Request
Basic Info
  • Application: Speaker Magnet, Industrial Magnet, Jewelry Magnet, Solenoid, Motor Magnet
  • Coating: Nickel
  • Size: Acceptable Custom
  • Composition: NdFeB Magnet
  • Specification: RoHs
  • Shape: Ring
  • Application Field: Permanent-Magnet Loudspeaker
  • Type: Permanent
  • Trademark: COCO
  • Origin: Zhejiang Ningbo China
Product Description
Product Name: Ring magnetic generator / Loudspeaker magnetizer for sale

Magnets grade: 35h
Magnets size: As the drawing
Magnets coating: Nickel, .
Quantities: More mass order quantities. More Lower the prices.
Original factory.

If you haven't been able to find your desired size or strength in our website?
We can send you a price quotation for exactly the magnet you wish...
Tell us which features you desire in a magnet and the quantity you will require.
You will receive our price quotation via e-mail within a day.

We hope to cooperate with you. Thank you!
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.  

Send your message to this supplier
Avatar
Mr. Micheal Yang
*From:
To: Mr. Micheal Yang
*Message:

Enter between 20 to 4,000 characters.

This is not what you are looking for? Post a Sourcing Request Now