STRONG MAGNET CO.,

ZHEJIANG DONGYANG STRONG ELECTRON CO., LTD

 Permanent Ferrite  Nd-Fe-B  Rubber Magnet  Bond NdFeB Soft Ferrite Magnetic Jewellery

ISO9001 Certificate

Permanent Ferrite Magnets

Hard ferrite (Ceramic) magnets take more than 75% of the world magnet production and have won wide acceptance due to their good resistance to demagnetization, excellent corrosion resistance and low price.

The chemical composition of magnets is iron oxide, barium and strontium elements. SrO-6(Fe₂O₃)or BaO-6(Fe₂O₃).

The type size: Ring & Cylinder DIA 5-220mm, Block 4-200mm, Segment (tile), ball of magnetic jewellery, Bar & Horseshoe Magnet.

It is the first choice for most types of speaker, DC motors, magnetic separators, MRI (magnetic resonance imaging) and automotive sensors.

THE CHARACTERISTICS, US MMPA0100-90 STANDARDS.

Grade	Br (KGs)	Hc (KOe)	Hci (KOe)	(BH)max (MGOe)	Curie Temp. (⁰C)	Max. Op. Temp (⁰C)
Ceramic 1	2.2	1.86	3.25	1.10	450	300
Ceramic 5	3.8	2.4	2.5	1.1	450	300
Ceramic 7	3.4	3.25	4.0	2.75	450	300
Ceramic 8	3.85	2.95	3.20	3.5	450	300
Ceramic 10	4.2	2.95	3.05	4.2	450	300

THE CHARACTERISTICS, : IEC,TDK,SJ/T10410-93 STANDARDS.

NO:		Y8T	Y20	Y22H	Y25	27H	Y28	Y30H-1	Y30H-2	Y32	Y33
Br	mT	220	350	335	380	385	385	390	400	410	420
Br	kG	2.2	3.5	3.35	3.8	3.85	3.85	3.9	4.0	4.1	4.2
Hcj	kA/m	140	160	235	150	225	190	250	285	175	235
Hcj	KOe	1.80	2.14	2.95	1.92	2.83	2.39	3.15	3.59	2.20	2.96
(BH) max	KJ/m3	7.5	20	22	25	27	28	30	31	32	33
(BH) max	MGOe	1.0	2.5	2.7	3.2	3.4	3.5	3.6	3.7	4.0	4.2
NO:		IEC- 7/21	C5	IEC 20/28	ISM PA320	TDK FB3X	IEC 25/14	TDK FB4B	TDK FB5H	TDK FB4A	TDK FB4X

The Direction of Magnetization:

1) Axially magnetized orientation, 2) Radially magnetized through diameter,

3) Multiple pole magnetized axially, 4) Multiple pole magnetized radially.

Welcometo order.

Tel:+86-571-85785057 (oversea), +86-755-26444861, +86-579-86311449.

Fax:+86-571-85785093 (oversea), +86-755-26444821, +86-579-86311497.

E-mail: magnet@strong-mag.com.cn E-mail: styongmag@mail.hz.zj.cn