Super NdFeB N40 Rare Earth Counterbore Neodymium Magnet

• Customization: Available
• Application: Speaker Magnet, Industrial Magnet, Solenoid, Motor Magnet, Generator Magnet
• Shape: Ring
• Model NO.: N40
• Coating: Nickel
• Grade: N40
• Product Name of Block Magnet: Super NdFeB N40 Rare Earth Counterbore Magnet
• Certificate of Block Magnet: CE/RoHS/SGS
• Tolerance of Block Magnet: +/- 0.05mm
• Model Number of Block Magnet: N40
• Magnetization Direction of Block Magnet: Axial/Radial/Multi-Poles Magnetization
• Working Temp. of Block Magnet: 80-200 Degree Centigrade
• Payment: T/T, Paypal, Western Union
• Transportation of Block Magnet: by Sea, by Air, by Express
• Lead Time of Block Magnet: 15-25days
• Transport Package: as Client′s Request
• Specification: N40
• Trademark: GME
• Origin: Zhejiang Ningbo/ Fujian Xiamen
• HS Code: 850511100
• Production Capacity: 3000 Tons

Product Description

Standard sizes ship within 2 weeks. custom-made size and grade are always available.

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.
Every permanent magnet generates a magnetic field, which circulates around the magnet is a distinct pattern. The size of the magnetic field is related to the size of the magnet and its strength. 

GME Magnets offers the highest quality Neodymium magnets with consistent performance and lowest price. 
Our Neodymium magnets are designed and manufactured to meet with quality standards using the latest technology. 
Here introduce a super strong permanent magnet that very popular in European magnet mareket, especially in German.

A | Diameter:	1" ± 0.005"
B | Thickness:	0.5" ± 0.005"
C | Hole Diameter:	0.1875" ± 0.005"
D | Minor Diameter:	0.375" ± 0.005"
E | Bore Depth:	0.1
Recess on:	South Polarity
Mount With:	#8 Screw
Surface Gauss	4799
Optimal Pull:	47.41 lbs
Material	Licensed NdFeB
Plating:	Nickel
Magnet Weight	1.687 oz
Grade:	N40
Br	12.5-12.8  KG
Hcb	≥11.4  KOe
Hci	≥12.0  KOe
BHmax	38-41  MGOe
Tmax	80C / 176F
MOQ	2000pcs
Leading Time	18-23 working days
Sample	Yes
Certificate	ISO2000, TS16949, RoHS, CE & SGS
Payment	T/T, PayPal, Western Union

Magnetic Characteristics of N40

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

N40

1.26-1.31

12.6-13.1

≥923

≥11.6

≥955

≥12

302-326

38-41

≤80

GME core values

Customer Care
Quality is our life. Customer satisfaction is our eternal pursuit. Everything we do at GME is driven by an unyielding passion for excellence in identifying and delivering solutions that exceed expectations.

Innovation
In today's fast-developing global economy, innovation is critical to a company's survival. We anticipate and adapt to changing for continuous improvement.

Co-Prosperity
A business cannot be successful unless it creates prosperity and opportunity for others. We have a dream--customers could win more through our Great Service; we have a dream--GME members could realize their own dreams while striving for GME Dream.

Social Responsibility
Sustainability isn't only important for people and the planet, but also is vital for business success. We are environmentally responsible and drive to sustainability. And we should do something for our better future.
For more information, please refer to greatmagtech.en.made-in-china.com