N40sh Sintered Strong Permanent NdFeB Magnetic Core

• Customization: Available
• Application: Speaker Magnet, Industrial Magnet, Jewelry Magnet, Solenoid, Motor Magnet, Generator Magnetic Core
• Shape: Ring
• Model NO.: N40SH
• Coating: Nickel
• Grade: N40sh Magnetic Core
• Product Name of Magnetic Core: N40sh Sintered Strong Permanent NdFeB Magnetic Cor
• Envrionment Management System: ISO9001/14001
• Certificate of Magnetic Core: CE/RoHS/SGS/Ts16949
• Tolerance of Magnetic Core: +/- 0.05mm
• Model Number of Magnetic Core: Gme-258
• Magnetization Direction of Magnetic Core: Axial/Radial/Multi-Poles Magnetization
• Working Temp. of Magnetic Core: 80-200 Degree Centigrade
• Transportation of Magnetic Core: by Sea, by Air, by Express
• Payment: T/T, Paypal, Western Union
• Lead Time of Magnetic Core: 7-25days
• Transport Package: Carton, Wood Case, Anti-Magnetized Package
• Specification: As Client′s Request
• Trademark: GME
• Origin: Zhejiang/Xiamen
• HS Code: 850511100
• Production Capacity: 3000 Tons

Product Description

A permanent magnet is that a magnet that is permanent, in contrast to an electromagnet, which only behaves like a magnet when an electric current is flowing through it.
Permanent magnets are made out of substances like magnetite (Fe3O4), 
the most magnetic naturally occurring mineral or neodymium, Samarium cobalt, a powerfully magnetic synthetic substance.
The Earth itself is a huge permanent magnet, though its magnetic field is quite weak relative to its size. Humans have used the magnetic field of the Earth for navigation since the compass was invented in ancient China.
Even the most powerful permanent magnet is not as strong as the strong electromagnets, so their applications are limited, but they still have very widely application, magnets can be found everywhere, including your hard disk, ATM and credit cards, speakers and microphones, electric motors, and toys.


Magnetic Characteristics of N40SH

GRADE	Remanence		Coercive Force		Intrinsic Coercive		Max Energy Product		Working Temp.
	(Br)		(bHc)		(iHc)		(BH)max		Tw(ºC)
	T	KGs	KA/m	KOe	KA/m	KOe	KJ/m³	MGOe

N40SH

1.26-1.31

12.6-13.1

≥923

≥11.6

≥1592

≥20

302-326

38-41

≤150