Neodymium Magnets Composite and Block Shape magnet 20x10x10mm from China manufacturer

Neodymium Magnets Composite and Block Shape magnet 20x10x10mm

Payment Terms:	T/T,L/C,D/A,D/P
Place of Origin:	Zhejiang, China (Mainland)


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Product Detail

Means of Transport: Ocean,Land,Air

Packing: CARTON

Application: Moto Magnet

Type: Permanent

Brand Name: HONY

Coating Thickness:: 10-15

Grade: N,M,H,SH,UH,EH

Production Capacity: 100000/MONTH

Delivery Date: 25

Shape: Block

Composite: NdFeB Magnet

Working temperature: High up to 200℃

Coating: Nickle

Specifications
1,high performance
2,varies terms of payment
3,short delivery time
4,competitive price
5,certification:ROHS

Sintered Neodymium Magnets Composite and Block Shape magnet 20x10x10mm

Directions of Magnetization

a. Thickness Magnetized

b. Axially Magnetized

c. Diametrally Magnetized

d. Multi-poles magnetized

e. Radial Magnetized

f. Customized specific requirements magnetized

1. Materials

Sintered Neodymium-Iron-Boron

2. Grades

Range: N35-N52; N35M-N50M; N35H-N48H, N35SH-N45SH; N30UH-N40UH,N30EH-N38EH

-The grade like N48-N52 could meet your requirements on strong power

-Standard one like N35 or N40 is okay for your normal applications

3. Shapes

Others available: Block, Ring, Cylinder, Disc, Customized shape as your design.

4. Size

Length x Width x Thickness You could choose freely according to your plan.

5. Coatings

Others available: Nickel, Zinc, Gold, Silver, Epoxy, Parylene, etc.

6. Orientation

Through the direction of thickness or according to your needs.

7. Quality

Our expert quality control department ensures magnets are high quality.

8. Applications

Sensors, motors, rotors, wind turbine,wind generators, etc

Sintered Neodymium Magnets Composite and Block Shape magnet 20x10x10mm

Magnet Information
Description	Sintered NdFeB Magnet
Material:	Neodymium-Iron-Boron
Shape:	Ring, Thin-wall ring, Disc, Cylinder, Segment,Contersunk, Tapezoid, Irregular Shape…With special shape requirement, we have own R & D dept. to support
Coating:	Ni-Cu-Ni, Nickel, Zn, Gold, Cr, Silver, Copper, Anti-Rust Oil, Spray Rolling, Black, Grey Epoxy, PTFE, Parylene, and so on.
Magnetic Performance Sheet
Grade	Remanence(Br)	Coercivity(BH) max kJ/m3	Temperature
	mT	KJ/M3	(Tw°C)
	(kGs)	MGOe
N35-N52	1170-1480	263-422	80 °C
N35-N52	(10.3-14.8)	(33-53)	80 °C
35M-50M	1080-1450	263-406	100 °C
35M-50M	(10.8-14.5)	(33-51)	100 °C
35H-48H	1170-1430	(263-390)	120 °C
35H-48H	(11.7-14.3)	(33-49)	120 °C
35SH-45SH	1130-1380	247-366	150 °C
35SH-45SH	(11.3-13.8)	(33-46)	150 °C
30UH-40UH	1080-1280	263-326	180 °C
30UH-40UH	(10.8-12.8)	(33-41)	180 °C
30EH-38EH	1080-1250	223-310	200 °C
30EH-38EH	(10.8-12.5)	(28-39)	200 °C
Magnet Coating
Coating	Thickness (Microns)	Color	Resistance
Anti-Rust Oil	1	Trancparency	Temporary Protection
Spray Rolling	10-30	Common Black	24 hours of salt spray test
Zinc	5-10	Bright Blue	24 hours of salt spray test
Nickle	10-15	Bright Silver	48 hours of salt spray test
Ni+Cu	10-20	Gold	Temporary Protection
Ni+Cu+Epoxy	15-30	Grey, Black	Excellent Against Humidity & Salt Spray
Epoxy	15-25	Grey, Black	72 hours of salt spray test
Parylene	10-30	Trancparency	200 hours of Salt Spray. Superior Against Solvents, Gases, Fungi and Bacteria

Sintered Neodymium Magnets Composite and Block Shape magnet 20x10x10mm

FAQ:

1. What are neodymium magnets? Are they the same as "rare earth"?

Neodymium magnets are a member of the rare earth magnet family. They are called "rare earth" because neodymium is a member of the "rare earth" elements on the periodic table. Neodymium magnets are the strongest of the rare earth magnets and are the strongest permanent magnets in the world.

2. What are neodymium magnets made from and how are they made?

Neodymium magnets are actually composed of neodymium, iron and boron (they are also referred to as NIB or NdFeB magnets). The powdered mixture is pressed under great pressure into molds. The material is then sintered (heated under a vacuum), cooled, and then ground or sliced into the desired shape. Coatings are then applied if required. Finally, the blank magnets are magnetized by exposing them to a very powerful magnetic field in excess of 30 KOe.

3. How is the strength of a magnet measured?

Gaussmeters are used to measure the magnetic field density at the surface of the magnet. This is referred to as the surface field and is measured in Gauss (or Tesla). Pull Force Testers are used to test the holding force of a magnet that is in contact with a flat steel plate. Pull forces are measured in pounds (or kilograms).

4. What does the "N rating", or grade, of the neodymium magnets mean?

The grade, or "N rating" of the magnet refers to the Maximum Energy Product of the material that the magnet is made from. It refers to the maximum strength that the material can be magnetized to. The grade of neodymium magnets is generally measured in units millions of Gauss Oersted (MGOe). A magnet of grade N42 has a Maximum Energy Product of 42 MGOe. Generally speaking, the higher the grade, the stronger the magnet.

5. What is the difference between the different platings and coatings?

Choosing different coatings does not affect the magnetic strength or performance of the magnet, except for our Plastic and Rubber Coated Magnets. The preferred coating is dictated by preference or intended application. More detailed specifications can be found on our Specs page.

♦ Nickel is the most common choice for plating neodymium magnets. It is actually a triple plating of nickel-copper-

nickel. It has a shiny silver finish and has good resistance to corrosion in many applications. It is not waterproof.

♦ Black nickel has a shiny appearance in a charcoal or gunmetal color. A black dye is added to the final nickel plating

process of the triple plating of nickelcopperblack nickel.

NOTE: It does not appear completely black like epoxy coatings. It is also still shiny, much like plain nickel plated magnets.

♦ Zinc has a dull gray/bluish finish, that is more susceptible to corrosion than nickel. Zinc can leave a black residue on

hands and other items.

♦ Epoxy is basically a plastic coating that is more corrosion resistant as long as the coating is intact. It is easily scratched.

From our experience, it is the least durable of the available coatings.

♦ Gold plating is applied over the top of standard nickel plating. Gold plated magnets have the same characteristics as

nickel plated ones, but with a gold finish