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2015 New 27-17*3mm ferrite magnet for speaker

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Items	27-17*3mm ferrite speaker magnet
Material	Ferrite magnet is made of Sro or Bao and Fe2o3 by Ceramic processing technology
Shape available	Disc,cylinder,rectangle,square,ring ect
Shape available	Disc,cylinder,rectangle,square,ring ect
Specification	Grade	Br		Hcb		(BH)max
	Grade	T	Gs	KA/m	Oe	Kj/m3	MGOe
	Y25	0.35-0.39	3500-3900	128-192	1600-2400	22.3-25.5	2.8-3.2
	Y30	0.38-0.42	3800-4200	160-216	2000-2700	26.3-29.5	3.3-3.7
	Y35	0.4-0.44	4000-4400	176-224	2200-2800	30.3-33.4	3.8-4.2
	Y25BH	0.36-0.39	3600-3900	176-216	2200-2700	23.9-27.1	3.0-3.4
	Y30BH	0.38-0.4	3800-4000	224-240	2800-3000	27.1-30.3	3.4-3.8
Characteristics	Lost Cost,Higher Coercive Force; It needn`t to be coated because it is difficult to be eroded and oxidized
Application	sensors,motors, rotors, wind turbines,wind generators, loudspeakers,magnetic holder, filters automobiles and so on.

Product:	27-17*3mm ferrite speaker magnet
Certificates:	ISO9001,CE,ROHS,SGS
Shapes:	Ring, disk, block, segment, ball, cylinder and so on; customized made.
Advantages:	1.recoil permeability 2.high coercive force 3.relatively low specific density 4.economical cost
Features:	1.good anti-corrosion performance 2.no surface treatment needed 3.isotropic & anisotropic magnets
Magnetic Performance
Grade	Remanence Br mT (kGs)	Coercive force HcB KA/m (KOe)	Magnetic energy product Max KJ/m³ MGOe	Equivalents
Y10T	200-218	125-145	6.5-8.0	C1
2.00-2.18	1.57-1.82	0.8-1.0
Y25	360-370	135-150	22.5-25.3
3.60-3.70	1.70-1.88	2.8-3.2
Y30	380-390	191-210	27-30
3.80-3.90	2.40-2.64	3.4-3.7
Y33	400-410	175-195	30.0-31.5	C5
4.00-4.10	2.20-2.45	3.8-4.0
Y35	410-420	220-235	31.5-33.0
4.10-4.20	2.77-2.95	4.0-4.2
Y30BH	380-390	223-235	27.0-30.0	C8
3.80-3.90	2.80-2.95	3.4-3.7
Y33BH	400-410	288-300	30.4-31.5
4.00-4.10	3.62-3.77	3.8-4.0

Product:	27-17*3mm ferrite speaker magnet
Certificates:	ISO9001,CE,ROHS,SGS
Shapes:	Ring, disk, block, segment, ball, cylinder and so on; customized made.
Advantages:	1.recoil permeability 2.high coercive force 3.relatively low specific density 4.economical cost
Features:	1.good anti-corrosion performance 2.no surface treatment needed 3.isotropic & anisotropic magnets
Magnetic Performance
Grade	Remanence Br mT (kGs)	Coercive force HcB KA/m (KOe)	Magnetic energy product Max KJ/m³ MGOe	Equivalents
Y10T	200-218	125-145	6.5-8.0	C1
2.00-2.18	1.57-1.82	0.8-1.0
Y25	360-370	135-150	22.5-25.3
3.60-3.70	1.70-1.88	2.8-3.2
Y30	380-390	191-210	27-30
3.80-3.90	2.40-2.64	3.4-3.7
Y33	400-410	175-195	30.0-31.5	C5
4.00-4.10	2.20-2.45	3.8-4.0
Y35	410-420	220-235	31.5-33.0
4.10-4.20	2.77-2.95	4.0-4.2
Y30BH	380-390	223-235	27.0-30.0	C8
3.80-3.90	2.80-2.95	3.4-3.7
Y33BH	400-410	288-300	30.4-31.5
4.00-4.10	3.62-3.77	3.8-4.0

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