Y30 Big Ring Ferrite Magnet for Speaker

• Type: Permanent
• Composite: Ferrite Magnet
• Finish: Usually No Need of Coating
• Certification: UL, RoHS, Ce, ISO9001, SGS
• Application: Speaker Magnet, Industrial Magnet, Motor Magnet
• Transport Package: Carton
• Model NO.: MF-F333
• Specification: MF-F333
• Trademark: chinafore
• Origin: China
• Production Capacity: 50000 Pieces/Year

Product Description

Product Description
Y30 Big Ring Ferrite Magnet for Speaker
Specifications
1. Cost-effective
2. Quality guarantee
3.98% on time delivery rate
Overview of Ferrite Magnets
Chemically inert so excellent corrosion resistance
Good demagnetization resistance
Cost effective
Wide range of forms (usually machined to size)

About Ceramic (Hard Ferrite)

Ferrite magnets, sometimes referred to as ceramic because of their production process, are the least expensive class of permanent magnet materials.
Sintered Ferrite Magnet of the main raw material including BaFe12O19 and SrFe12O19, according to the orientation of magnetic crystal divided into isotropic and anisotropic magnets. Because of its low cost and moderate magnetic properties and become more widespread application of a magnet. Ferrite magnet is made of by ceramic method, texture is relatively hard, it is a brittle material, due to ferrite magnets have good temperature resistance and low cost has become more widespread application of permanent magnets.
Advantages:
1. The material is one of the most cost effective magnetic materials manufactured in industry. The low cost is due to the cheap raw materials. Due to their low cost, Ferrite magnets enjoy a very wide range of applications, from motors and loudspeakers to toys and crafts.

2. Rectangular ferrite magnet has an excellent resistance to demagnetisation and can be magnetised before or after assembly without danger of losing any performance.
3. It can be used in operating temperatures ranging from -40° C to + 250° C.
4. Sintered Ferrite will not corrode even in salt-water applications. It also has good chemical stability

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