Ring shaped NdFeB Speaker magnets

Product name:Ring shaped NdFeB Speaker magnets Ring shaped NdFeB Speaker magnetsmake the voice sound better, make the volume smaller, mainly used in electronic devices

Small round & ring Magnets
Coated with CR3+ZN(environmental protection Zn)Mainly used in MP3, MP4, mobile, speaker, consumption electronic applications etc.

As an original magnet supplier, we have professional engineering team to support our customers. The company has pass the TS16949, ISO 9001. All our process are control under this quality system.

Based on our professional team and our advanced facilities. we can produce this arc magnet according to customers' designs. and any trial orders are acceptable as well.  

Please try to specify the following details while inquirying

1. Magnet size and shape, any sketch is preferable.
2.Magnet grades suitable for your application
3. surface treatment of the magnets: NiCuNi, Epoxy, Zinc, Passivation, ...
4. Order quantity
5. working temperature
6. magnetized direction
7. others which may help us to quote.

Magnetic properties of Sintered NdFeB magnets:
Grade	Remanence	Coercive Force	Intrinsic Coercive Force	Max. energy product	Max.
					Operating
					Temperature
	Br	Hcb	Hcj	(BH )	Tw
				max
	mT	kA/m	kA/m	kJ/m3
	(kGs)	(kOe)	(kOe)	(MGOe)
N35	1170-1220	≥868	≥955	263-287	80 °C
	(11.7-12.2)	(≥ 10.9)	(≥ 12)	(33-36)
N38	1220-1250	≥899	≥955	287-310	80 °C
	(12.2-12.5)	(≥ 11.3)	(≥ 12)	(36-39)
N40	1250-1280	≥907	≥955	302-326	80 °C
	(12.5-12.8)	(≥ 11.4)	(≥ 12)	(38-41)
N42	1280-1320	≥915	≥955	318-342	80 °C
	(12.8-13.2)	(≥ 11.5)	(≥ 12)	(40-43)
N45	1320-1380	≥923	≥955	342-366	80 °C
	(13.2-13.8)	(≥ 11.6)	(≥ 12)	(43-46)
N48	1380-1420	≥923	≥876	366-390	80 °C
	(13.8-14.2)	(≥ 11.6)	(≥ 12)	(46-49)
N50	1400-1450	≥796	≥876	382-406	80 °C
	(14.0-14.5)	(≥ 10.0)	(≥ 11)	(48-51)
N52	1430-1480	≥796	≥876	398-422	60°C
	(14.3-14.8)	(≥ 10.0)	(≥ 11)	(50-53)
35M	1170-1220	≥868	≥1114	263-287	100 °C
	(11.7-12.2)	(≥ 10.9)	(≥ 14)	(33-36)
38M	1220-1250	≥899	≥1114	287-310	100 °C
	(12.2-12.5)	(≥ 11.3)	(≥ 14)	(36-39)
40M	1250-1280	≥923	≥1114	302-326	100 °C
	(12.5-12.8)	(≥ 11.6)	(≥ 14)	(38-41)
42M	1280-1320	≥955	≥1114	318-342	100 °C
	(12.8-13.2)	(≥ 12.0)	(≥ 14)	(40-43)
45M	1320-1380	≥995	≥1114	342-366	100 °C
	(13.2-13.8)	(≥ 12.5)	(≥ 14)	(43-46)
48M	1370-1430	≥1027	≥1114	366-390	100 °C
	(13.7-14.3)	(≥ 12.9)	(≥ 14)	(46-49)
50M	1400-1450	≥ 1033	≥1114	382-406	100 °C
	(14.0-14.5)	(≥ 13.0)	(≥ 14)	(48-51)
35H	1170-1220	≥868	≥1353	263-287	120 °C
	(11.7-12.2)	(≥ 10.9)	(≥ 17)	(33-36)
38H	1220-1250	≥899	≥1353	287-310	120 °C
	(12.2-12.5)	(≥ 11.3)	(≥ 17)	(36-39)
40H	1250-1280	≥923	≥1353	302-326	120 °C
	(12.5-12.8)	(≥ 11.6)	(≥ 17)	(38-41)
42H	1280-1320	≥955	≥1353	318-342	120 °C
	(12.8-13.2)	(≥ 12.0)	(≥ 17)	(40-43)
45H	1320-1360	≥963	≥1353	342-366	120 °C
	(13.2-13.6)	(≥ 12.1)	(≥ 17)	(43-46)
48H	1370-1430	≥955	≥1353	366-390	120 °C
	(13.7-14.3)	(≥ 12.5)	(≥ 17)	(46-49)
35SH	1170-1220	≥876	≥1592	263-287	150 °C
	(11.7-12.2)	(≥ 11.0)	(≥ 20)	(33-36)
38SH	1220-1250	≥907	≥1592	287-310	150 °C
	(12.2-12.5)	(≥ 11.4)	(≥ 20)	(36-39)
40SH	1240-1280	≥939	≥1592	302-326	150 °C
	(12.5-12.8)	(≥ 11.8)	(≥ 20)	(38-41)
42SH	1280-1320	≥987	≥1592	318-342	150 °C
	(12.8-13.2)	(≥ 12.4)	(≥ 20)	(40-43)
45SH	1320-1380	≥ 1003	≥1592	342-366	150 °C
	(13.2-13.8)	(≥ 12.6)	(≥ 20)	(43-46)
28UH	1040-1080	≥764	≥1990	207-231	180 °C
	(10.4-10.8)	(≥ 9.6)	(≥ 25)	(26-29)
30UH	1080-1130	≥812	≥1990	223-247	180 °C
	(10.8-11.3)	(≥ 10.2)	(≥ 25)	(28-31)
33UH	1130-1170	≥852	≥1990	247-271	180 °C
	(11.3-11.7)	(≥ 10.7)	(≥ 25)	(31-34)
35UH	1180-1220	≥860	≥1990	263-287	180 °C
	(11.8-12.2)	(≥ 10.8)	(≥ 25)	(33-36)
38UH	1220-1250	≥876	≥1990	287-310	180 °C
	(12.2-12.5)	(≥ 11.0)	(≥ 25)	(36-39)
40UH	1250-1280	≥ 899	≥1990	302-326	180 °C
	(12.5-12.8)	(≥ 11.3)	(≥ 25)	(38-41)
42UH	1280-1320	≥ 899	≥1990	318-342	180 °C
	(12.8-13.2)	(≥ 11.3)	(≥ 25)	(40-43)
28EH	1040-1080	≥780	≥2388	207-231	200 °C
	(10.4-10.8)	(≥ 9.8)	(≥ 30)	(26-29)
30EH	1080-1130	≥812	≥2388	223-247	200 °C
	(10.8-11.3)	(≥ 10.2)	(≥ 30)	(28-31)
33EH	1130-1170	≥876	≥2388	247-271	200 °C
	(11.3-11.7)	(≥ 10.5)	(≥ 30)	(31-34)
35EH	1170-1220	≥876	≥2388	263-287	200 °C
	(11.7-12.2)	(≥ 11.0)	(≥ 30)	(33-36)
38EH	1220-1250	≥899	≥2388	287-310	200 °C
	(12.2-12.5)	(≥ 11.3)	(≥ 30)	(36-39)
40EH	1250-1280	≥899	≥2388	302-326	200 °C
	(12.5-12.8)	(≥ 11.3)	(≥ 30)	(38-41)
28AH	1040-1080	≥787	≥2624	207-231	230 °C
	(10.4-10.8)	(≥ 9.9)	(≥ 33)	(26-29)
30AH	(1080-1130)	≥819	≥2624	223-247	230 °C
	(10.8-11.3)	(≥ 10.3)	(≥ 33)	(28-31)
33AH	1130-1170	≥843	≥2624	247-271	230 °C
	(11.3-11.7)	(≥ 10.6)	(≥ 33)	(31-34)
35AH	(1170-1220)	≥ 876	≥2624	263-287	230 °C
	(11.7-12.2)	(≥ 11.0)	(≥ 33)	(33-36)
38AH	1220-1250	≥ 899	≥2624	287-310	230 °C
	(12.2-12.5)	(≥ 11.3)	(≥ 33)	(36-39)

Our advantages: 1. Original neodymium magnet maker with professional technical and servers.

                            2. Strict quality control systems under certification TS16949 and ISO 9001

                            3. Latest facilities to support R&D, quality control, process control, final product inspection

                            4. Very low prices due to our production well controlled , process optimization,

                            5, Fast delivery
                            6. Motto: partnership with all customers