Shanghai Jinmagnets—neodymium magnets, rare earth magnets and NdFeB

Home

About us

Products

Feedback

Contact

Sitemap

	Neodymium Magnet
	Rubber Magnet
	Ferrite Magnet
	SmCo Magnet
	AlNiCo Magnet
	Magnetic Fuel Saver
	Water Magnetizer
	Permanent Magnet Lifter
	Magnetic Separator
	Magnetic Jewelry
	Magnetic Sphere/ Neo Cube
	Magnetic White Board

Sintered and Bonded Neodymium Magnet

Sintered Neodymium Magnet

Compression Moulding Bonded Neodymium Magnet

Injection Moulding Bonded Neodymium Magnet

Sintered Neodymium Magnet

We call neodymium magnets in different names. The below listed most names of it. Neodymium, rare earth magnets, earth magnets, permanent magnets and neodymium.

Neodymium-iron-boron magnet is one kind of the permanent rare earth magnet. It is also called rare earth magnet and neodymium magnet.

Sintered Neodymium-iron-boron (neodymium), known as the third generation of rare earth permanent magnet, is made from Nd, Fe, B as well as few of other elements like Dy, Tb, Co, Nb, Ga, Al, Cu, etc.

China is the major neodymium magnet producer in the world. China magnet is famous for its competitive price and stable quality.

Our neodymium magnets are widely used as motor magnets, pick-up magnets, rotor magnets, industrial magnets, separator magnets, lifting magnets, wind turbine magnets, speaking magnets etc.

The detailed application can be as follows.

Main Application Fields of neodymium Magnet

Micro motor and special motor: Voice Coil Motor(VCM), Step Motor, Texture Motor, Geared down Motor, Disk Motor, Servo Motor, and Permanent-Dynamic System.

Industry Installation: Magnetic Clamp, Magnetic Crane/Magnetic Lifter, Magnetize Filter, CD-ROM, Petrol dewaxing Equipment, Magnetic Coupler, Magnetic Switch, Generator, Magnetic Separator.

Sonic Equipment: Earphone, Microphone, Loudspeaker.

Apparatus: Electricity Meter, Velometer, Flow-meter, Tachometer.

Medical Device: Magnetic Resonance Image Device, Water Magnetizer, Magnetic Therapy Device.

Sintered neodymium magnet is one of the strongest magnet materials with high residual induction (Br), high intrinsic Coercive force (Hcj) and high Energy Product (BH), makes it suitable for servo motors, disk brushless motors, stepping motors, IT industry, MRI, audio products, magnetic separator, water magnetizer and magnetic lift. The surface treatment method include Zinc, Nickel, Tin, Silver, Gold plating, Phosphor and Spray Epoxy Resin etc.

Magnetic Properties of Sintered Neodymium Magnet

Grade	Remanence		Coercivity Force		Intrinsic Coercive Force		Max. Energy Product		maximum Operating Temp
	Br		Hcb		Hcj		（ BH ） max
	mT	kGs	kA/m	kOe	kA/m	kOe	kJ/m3	MGOe
N27	1030-1080	10.3-10.8	≥796	≥10.0	≥955	≥12	199-231	25-29	80 ℃
N30	1080-1130	10.8-11.3	≥796	≥10.0	≥955	≥12	223-247	28-31	80 ℃
N33	1130-1170	11.3-11.7	≥836	≥10.5	≥955	≥12	247-271	31-34	80 ℃
N35	1170-1220	11.7-12.2	≥868	≥10.9	≥955	≥12	263-287	33-36	80 ℃
N38	1220-1250	12.2-12.5	≥899	≥11.3	≥955	≥12	287-310	36-39	80 ℃
N40	1250-1280	12.5-12.8	≥907	≥11.4	≥955	≥12	302-326	38-41	80 ℃
N42	1280-1320	12.8-13.2	≥915	≥11.5	≥955	≥12	318-342	40-43	80 ℃
N45	1320-1380	13.2-13.8	≥923	≥11.6	≥955	≥12	342-366	43-46	80 ℃
N48	1380-1420	13.8-14.2	≥923	≥11.6	≥876	≥12	366-390	46-49	80 ℃
N50	1400-1450	14.0-14.5	≥796	≥10.0	≥876	≥11	382-406	48-51	60 ℃
N52	1430-1480	14.3-14.8	≥796	≥10.0	≥876	≥11	398-422	50-53	60 ℃
30M	1080-1130	10.8-11.3	≥796	≥10.0	≥1114	≥14	223-247	28-31	100 ℃
33M	1130-1170	11.3-11.7	≥836	≥10.5	≥1114	≥14	247-263	31-33	100 ℃
35M	1170-1220	11.7-12.2	≥868	≥10.9	≥1114	≥14	263-287	33-36	100 ℃
38M	1220-1250	12.2-12.5	≥899	≥11.3	≥1114	≥14	287-310	36-39	100 ℃
40M	1250-1280	12.5-12.8	≥923	≥11.6	≥1114	≥14	302-326	38-41	100 ℃
42M	1280-1320	12.8-13.2	≥955	≥12.0	≥1114	≥14	318-342	40-43	100 ℃
45M	1320-1380	13.2-13.8	≥995	≥12.5	≥1114	≥14	342-366	43-46	100 ℃
48M	1360-1430	13.6-14.3	≥1027	≥12.9	≥1114	≥14	366-390	46-49	100 ℃
50M	1400-1450	14.0-14.5	≥1033	≥13.0	≥1114	≥14	382-406	48-51	100 ℃
30H	1080-1130	10.8-11.3	≥796	≥10.0	≥1353	≥17	223-247	28-31	120 ℃
33H	1130-1170	11.3-11.7	≥836	≥10.5	≥1353	≥17	247-271	31-34	120 ℃
35H	1170-1220	11.7-12.2	≥868	≥10.9	≥1353	≥17	263-287	33-36	120 ℃
38H	1220-1250	12.2-12.5	≥899	≥11.3	≥1353	≥17	287-310	36-39	120 ℃
40H	1250-1280	12.5-12.8	≥923	≥11.6	≥1353	≥17	302-326	38-41	120 ℃
42H	1280-1320	12.8-13.2	≥955	≥12.0	≥1353	≥17	318-342	40-43	120 ℃
45H	1300-1360	13-13.6	≥963	≥12.1	≥1353	≥17	326-358	43-46	120 ℃
48H	1370-1430	13.7-14.3	≥995	≥12.5	≥1353	≥17	366-390	46-49	120 ℃
30SH	1080-1130	10.8-11.3	≥804	≥10.1	≥1592	≥20	223-247	28-31	150 ℃
33SH	1130-1170	11.3-11.7	≥844	≥10.6	≥1592	≥20	247-271	31-34	150 ℃
35SH	1170-1220	11.7-12.2	≥876	≥11.0	≥1592	≥20	263-287	33-36	150 ℃
38SH	1220-1250	12.2-12.5	≥907	≥11.4	≥1592	≥20	287-310	36-39	150 ℃
40SH	1240-1280	12.5-12.8	≥939	≥11.8	≥1592	≥20	302-326	38-41	150 ℃
42SH	1280-1320	12.8-13.2	≥987	≥12.4	≥1592	≥20	318-342	40-43	150 ℃
45SH	1320-1380	13.2-13.8	≥1003	≥12.6	≥1592	≥20	342-366	43-46	150 ℃
28UH	1020-1080	10.2-10.8	≥764	≥9.6	≥1990	≥25	207-231	26-29	180 ℃
30UH	1080-1130	10.8-11.3	≥812	≥10.2	≥1990	≥25	223-247	28-31	180 ℃
33UH	1130-1170	11.3-11.7	≥852	≥10.7	≥1990	≥25	247-271	31-34	180 ℃
35UH	1180-1220	11.8-12.2	≥860	≥10.8	≥1990	≥25	263-287	33-36	180 ℃
38UH	1220-1250	12.2-12.5	≥876	≥11.0	≥1990	≥25	287-310	36-39	180 ℃
40UH	1240-1280	12.5-12.8	≥899	≥11.3	≥1990	≥25	302-326	38-41	180 ℃
28EH	1040-1090	10.4-10.9	≥780	≥9.8	≥2388	≥30	207-231	26-29	200 ℃
30EH	1080-1130	10.8-11.3	≥812	≥10.2	≥2388	≥30	223-247	28-31	200 ℃
33EH	1130-1170	11.3-11.7	≥836	≥10.5	≥2388	≥30	247-271	31-34	200 ℃
35EH	1170-1220	11.7-12.2	≥876	≥11.0	≥2388	≥30	263-287	33-36	200 ℃
38EH	1220-1250	12.2-12.5	≥899	≥11.3	≥2388	≥30	287-310	36-39	200 ℃

Physical Properties of Sintered Neodymium Magnet

Temp.Coeff.of Br	-0.11%/ ℃	Temp.Coeff.of Hc	-0.60%/ ℃
Density	7.3-7.5g/cm 3	Electrical Resistivity	114 μΩ ..cm
Vickers Hardness	600Hv	Flexural Resistivity	25kg/mm
Tensile Strength	8.0Kg/mm2	Coeff. Of Thermal Expansion	4X10 -6 / ℃
Specific Heat	0.12Kcal/Kg	Thermal Conductivity	7.7kcal/[m.h. ℃ ]
Young’s Modulus	1.6X10[11]N/m2	Rigidity	0.64N/m2
Poisson’s Ratio	0.24	Compressibility	9.8x10-12m2/N
Curie Temperature	310-340 ℃

Compression Moulding Bonded Neodymium Magnet

Compression Moulding neodymium magnet is blended with a plastic material and compression molded. With High precision of size it can be made of complex shapes and also be bonded with other components. This kind of magnet can be magnetized in any directions and with multiple poles.

Magnetic Properties of Compression Moulding Bonded Neodymium Magnet

Type	Grade	Remanence Br	Maximum Energy Product (BH)max	Intrinsic Coercive Force Hci	Coercive Force Hcb(min)	Density D	Temper α(25-100℃)	Temper β(25-100℃)
		mT (KG）	KJ/m3 (MGOe)	KA/m (KOe)	KA/m (KOe)	g/cm3	(%/℃)	(%/℃)
High remanence	HC-B	660-700 6.6-7.0	69.6-80.0 8.7-10.0	640-720 8.0-9.0	392 4.9	6.0	-0.11	-0.40
High remanence	HC-B+	680-710 6.8-7.1	76.8-84.0 9.6-10.5	720-800 9.0-10.0	440 5.5	6.0	-0.11	-0.41
High Coercive Force	HC-A	590-640 5.9-6.4	60.0-68.0 7.5-8.5	1040-1200 13.0-15.0	400 5.0	6.0	-0.12	-0.38
	HC-A1	600-640 6.0-6.4	64.0-72.0 8.0-9.0	1040-1120 13.0-14.0	400 5.0	6.0	-0.12	-0.40
	HC-C	590-620 5.9-6.2	60.0-68.0 7.5-8.5	1200-1360 15.0-17.0	400 5.0	6.0	-0.07	-0.42
High stability	HC-D	640-680 6.4-6.8	70.4-76.0 8.8-9.5	720-800 9.0-10.0	432 5.4	6.0	-0.08	-0.39
	HC-O	600-640 6.0-6.4	61.6-68.0 7.7-8.5	880-1040 11.0-13.0	416 5.2	6.0	-0.13	-0.37
	HC-14-12	640-970 6.4-6.7	68.0-73.6 8.5-9.2	880-1040 11.0-13.0	440 5.5	6.0	-0.14	-0.37
Magnetizable	HC-15-7	680-740 6.8-7.4	75.2-88.0 9.4-11	520-560 6.5-7.0	400 5.0	6.0	-0.11	-0.39
Magnetizable	HC-16-7	710-770 7.1-7.7	80.0-96.0 10.0-12.0	536-576 6.7-7.2	424 5.3	6.0	-0.08	-0.52
Normal	HC-13-9	600-640 6.0-6.4	60.8-68.0 7.6-8.5	640-720 8.0-9.0	400 5.0	6.0	-0.12	-0.43
	HC-M11	620-670 6.2-6.7	56.0-64.0 7.0-8.0	680-760 8.5-9.5	368 4.6	6.0	-0.12	-0.43
	HC-L9	600-650 6.0-6.5	48.0-56.0 6.0-7.0	640-720 8.0-9.0	336 4.2	6.0	-0.12	-0.43
Notes: The properties given above are typical at room temperature (23℃) for coated samples.

Injection Moulding Bonded Neodymium Magnet

Injection neodymium power is blended with a plastic material and injection molded. With High precision of size it can be made of complex shapes and also be bonded with other components. This kind of magnet can be magnetized in any directions and with multiple poles.

Magnetic Properties of Injection Moulding Bonded Neodymium magnet

Type	Model	Remanence Br	Maximum Energy Product (BH)max	Intrinsic Coercive Force Hci	Temperature Coeffcient of Magnetic Induction α(25-100℃)	Temperature Coefficient of Coercive Force α(25-100℃)
Type		mT (KG）	KJ/m3 (MGOe)	KA/m (KOe)	(%/℃)	(%/℃)
High remanence	HI-B	550 5.5	52.0 6.5	720 9.0	-0.11	-0.40
High remanence	HI-B+	610 6.1	60.0 7.5	720 9.0	-0.11	-0.40
High Coercive Force	HI-A	510 5.1	44.0 5.5	1040 13.0	-0.12	-0.40
	HI-A1	500 5.0	44.0 5.5	1120 14.0	-0.12	-0.40
	HI-C	500 5.0	48.0 6.0	1280 16.0	-0.07	-0.40
High stability	HI-D	540 5.4	52.8 6.6	800 10.0	-0.07	-0.40
	HI-O	510 5.1	46.4 5.8	1040 13.0	-0.12	-0.40
	HI-14-12	540 5.4	50.4 6.3	960 12.0	-0.14	-0.37
Magnetizable	HI-15-7	580 5.8	56.0 7.0	520 6.5	-0.11	-0.40
	HI-E	600 6.0	40.0 5.0	320 4.0	-0.13	-0.43
	HI-16-7	630 6.3	60.0 7.5	520 6.5	-0.08	-0.52
Normal	HI-14-10	540 5.4	48.0 6.0	760 9.5	-0.12	-0.39
	HI-13-9	530 5.3	48.0 6.0	736 9.2	-0.12	-0.40
	HI-M1	530 5.3	44.0 5.5	680 8.5	-0.12	-0.40
	HI-M2	500 5.0	36.0 4.5	640 8.0	-0.12	-0.40
	HI-L	350 3.5	24.0 3.0	640 8.0	-0.12	-0.40

Notes: The properties given above are typical at room temperature (23℃) for coated samples.

Copyright：Shanghai Jinmagnets Industrial Co.,Ltd.
Add：No.1602, Song Yun Shui Yuan, 1000 Wenxiang Road, Songjiang District, Shanghai, 201620,China
Tel：86-(0)21-37729252 37728512 Fax：86-(0)21-37729251
Email：sales@jinmagnets.com Online MSN：jinmagnets@hotmail.com
Web Site：www.jinmagnets.com