Rare Earth Neodymium Magnets
Product Quick Detail
- Place Of Origin
- NINGBO
- Minimum Order
- 1
- Packaging
- standard package for magnets
- Delivery
- 5-15 days
Specifications
Meank provides powerful rare earth neodymium arc magnets for sale at good wholesale prices. Our rare earth giant neodymium magnets for sale have higher energy products and are known as NdFeB strong
magnets or powerful NdFeB magnets. As the third generation rare earth magnet, neodymium magnet, also known as NdFeB magnet, is a tetragonal crystal composed of the elements of Nd, Fe, and B. The
magnetic energy product BH(max) of rare earth neodymium magnet is higher than that of SmCo magnet, it is the most powerful and strongest rare earth industry magnet in the world. It is also the most
commonly used rare earth industry magnet such as the adhesive backed rare earth magnets. Contact us to buy big neodymium magnets!
Large Neodymium Magnets for Sale
Extra Strong NdFeB Block Magnets
The remanence and energy product of neodymium magnets are higher than that of any other permanent magnets, so they are classified as very strong magnets(also called extra strong magnets).You can
find very(extra) strong magnets in various fields of life and industry.
Large Neodymium Magnets
The neodymium magnet with length and diameter over 80mm and the are always called large neodymium magnets. Meank customize and supply nice large rare earth neodymium rare magnets,and we have full
size range for large neodymium rare earth magnets for sale...
Neodymium Magnetic Tiles
Arc or segment shape permanent magnets are known as magnetic tiles and tile magnets,which mainly used to make permanent magnet motor.Magnetic tiles of neodymium have perfect performance that
required...
Neodymium Disc Magnets
The flat and round shape strong NdFeB disc magnets are give the name of disc neodymium(NdFeB) strong magnets,the size of diameter is larger than its thickness, NdFeB disc magnet expressed by ...
Neodymium Block Magnets
The square shape strong neodymium (NdFeB) magnets are given the name of rare earth neodymium(NdFeB) block magnets or rectangular magnets,one strong NdFeB block(rectangular) magnet is expressed by
lengt...
Neodymium Cylinder Magnets
The long and round shape sintered NdFeB magnets are give the name of strong neodymium(NdFeB) cylinder magnets,which also known as strong neodymium magnet rods,different from normal disc shape,the
size...
Neodymium Ring Magnets
The flat and round shape strong neodymium magnet that with a hole in center are called strong neodymium(NdFeB) ring magnets,the size of diameter is larger than its thickness,one strong ...
Neodymium Cube Magnets
The sintered ndfeb magnets that have the same size on length,width and height are called strong neodymium(NdFeB) cube magnets,which can be understood as special neodymium block magnets.
Neodymium Countersunk Block Magnets
The rectangular neodymium magnet blocks with countersunk hole are give the name of rare earth neodymium(NdFeB) countersunk block(rectangular) magnets,the countersunk hole make the block magnets
mount...
Neodymium Countersunk Ring Magnets
The flat and round shape NdFeB disc magnets with countersunk mounting hole are give the name of rare earth neodymium(NdFeB) countersunk ring magnets,which are special ring magnets and known as
strong ...
Neodymium Rectangular Magnets
The rare earth neodymium (NdFeB) rectangular magnets are important industry magnets , rare earth rectangular magnets are expressed by length(L) x width(W) x thickness(T) / height(H).
Neodymium Rod Magnets
Rare earth neodymium magnets are given different name according to the shapes, long and round shape sintered NdFeB magnets are give the name of rare earth neodymium(NdFeB) rod magnets...
Neodymium Bar Magnets
The thin&long neodymium rectangle magnets are give another name of strong neodymium(NdFeB) bar or strip magnets, The same as normal block(rectangular) neodymium magnet, neodymium bar and strip
mag...
Neodymium Arc Magnets
The strong neodymium(NdFeB) magnets in arc/segment shape are mainly used in permanent magnet motor,and called neodymium magnetic tile.strong neodymium(ndfeb) magnetic tile is mainly used in
permanent ...
Neodymium Tube Magnets
The neodymium cylinder magnets with through hole along the axial are called rare earth neodymium(NdFeB) tube magnets,they can understood as special neodymium ring ...
Neodymium Sphere(ball) Magnets
The spherical shaped strong NdFeB magnets are give the name of rare earth neodymium(NdFeB) sphere magnets,and also known as neodymium ball magnets and magnetic sphere&balls. we just use the
diamet...
Neodymium Cone Magnets
The strong neodymium(NdFeB) cone magnets are special disc or cylinder magnets that the two ends have not the same size. One rare earth strong neodymium cone magnet is expressed by bottom
diameter(D1)x...
Neodymium Magnetic Balls
Sintered NdFeB magnets can be customized into various shapes,the round and sphere shaped neodymium(NdFeB) magnets are known as neodymium magnetic balls. we just use the diameter size to express a
ball...
Adhesive Neodymium Magnets
Adhesive backed neodymium magnets( neodymium magnets with adhesive backing) are just thin magnets with 3M self-adhesive on one of the magnetic poles. The adhesive layer is a 3M adhesive with a peel
aw...
Black Neodymium Magnets
Rare earth Nd-Fe-B permanent magnet material is a kind of high performance and strong magnetic material, which is one of the key materials for miniaturization and super miniaturization ...
Neodymium Motor Magnets
The permanent magnets used for motor are give the name of motor magnets.For shape,most of motor magnets are in arc shape;for material,all ferrite motor magnets, SmCo motor magnets and neodymium
motor ...
Neodymium Screw On Magnets
All flat ring magnets and block magnets with countersunk holes can be fastened with countersunk head screw,and given the name of screw-on magnets or screw-in magnets.Due to strong adhesive
force,neody...
Big Neodymium Magnets
The neodymium magnet block with length and width over 40mm and the round neodymium magnets with diameter over 40mm are usually known as big neodymium magnets. Meank manufacture and supply nice big
neodymium rare earth magnets,we have ...
Powerful Neodymium Magnets
The permanent powerful cylinder magnets made from rare earth elements that have high magnetic energy are always called powerful magnets. Due to the highest magnetic energy product, neodymium magnet
is the most powerful...
Strong Neodymium Magnets
The magnets made from rare earth material are classified as strong magnets, neodymium magnet is the strongest permanent magnet at present, and has various excellent magnetic properties. Strong ...
Strongest Neodymium Magnets
Magnetic materials with maximum remanence and energy products are the strongest magnets. We are a professional strongest magnets manufacturer that can custom strongest neodymium magnets with full
size...
Super Neodymium Magnets
Rare earth magnets with large size or high magnetic energy products are known as super strong magnets or super powerful magnets. Large neodymium magnets are known worldwide people as super...
Thin Neodymium Magnets
The flat neodymium magnets with thickness under 2mm are classified as thin neodymium magnets. Thin neodymium magnets are characterized by length and width, or diameter much larger than thickness.
That...
Tiny Neodymium Magnets
The magnets with dimensions under 10mm are usually known as small or tiny magnets, and the 2mm or 1mm magnet is even called micro magnets. Because of the highest energy product of neodymium magnet
mat...
Sintered Custom Shaped Powerful NdFeB Magnet Application
Thanks to the excellent magnetic properties, sintered neodymium(NdFeB) strong permanent magnet materials are widely used in electronics, electrical machinery, motors,medical devices, toys,
packaging, hardware machinery, aerospace and other fields. The most common application products of Meank strong neodymium magnets for sale are permanent magnet motors, loudspeakers, magnetic
separators, salvage fishing magnet and mounting products.
Rare Earth Neodymium Powerful Magnets Classification
Neodymium(NdFeB) strong magnet can be classified as sintered NdFeB and bonded NdFeB. Bonded NdFeB magnets have magnetism and corrosion resistance in all directions; sintered NdFeB magnet is
generally divided into axial magnetized and diametrical magnetized, which is determined according to the required working face.
The sintered neodymium magnet is easy to corrode, and the surface needs to be coated, generally including zinc plating, nickel, environmental protection zinc, environmental protection nickel,
nickel-copper-nickel, environmental protection nickel-copper-nickel, and epoxy coating. Meank is a professional manufacturer and supplier of sintered rare earth neodymium strong magnet, which is
the strongest magnet and the most powerful magnet for sale in the world. We offer a wide range of large neodymium magnets for sale at a cheap price/cost. Wholesale is available, bulk buying is
welcomed. Contact us and buy rare earth magnets now!
Powerful Neodymium Magnets Features & Characteristics
Anisotropy: the magnetic crystals of rare earth neodymium magnets are anisotropic and have high saturation magnetization.
Highest magnetic energy product: among permanent magnetic materials, rare earth neodymium magnets have the highest performance, and the maximum magnetic energy product (BH) of commercial powerful
neodymium magnets is max=52MGOe
Poor temperature stability: the powerful neodymium magnet has low Curie temperature and poor temperature stability, which limits its use at higher temperatures.
Poor corrosion resistance: white or other color spots will appear on the surface, which will gradually develop into rust spots. In most cases, protective coatings are required. Generally, rust
spots are not easy to appear on the electroplated rare earth neodymium magnet under normal circumstances.
Good mechanical properties: powerful neodymium magnets have good mechanical properties and is easy to cut and drill.
Sintered Rare Earth Strong Industry Magnets Material Magnetic Property & Performance
Magnet Remanence (Br) HcB HcJ (B-H)max Max.Temp.
Type(Grade) (KGs) (mT) (Koe) (KA/m) (Koe) (KA/m) (MGOe) (KJ/m3) ℃
N35 11.7-12.2 1170-1220 ≥10.9 ≥868 ≥12 ≥955 33-36 263-287 80℃
N38 12.2-12.5 1220-1250 ≥11.3 ≥899 ≥12 ≥955 36-39 287-310 80℃
N40 12.5-12.8 1250-1280 ≥11.4 ≥907 ≥12 ≥955 38-41 302-326 80℃
N42 12.8-13.2 1280-1320 ≥11.5 ≥915 ≥12 ≥955 40-43 318-342 80℃
N45 13.2-13.8 1320-1380 ≥11.6 ≥923 ≥12 ≥955 43-46 342-366 80℃
N48 13.8-14.2 1380-1420 ≥10.5 ≥836 ≥12 ≥955 46-49 366-390 80℃
N50 14.0-14.5 1400-1450 ≥10.0 ≥796 ≥11 ≥876 48-51 382-406 80℃
N52 14.3-14.8 1430-1480 ≥10.0 ≥796 ≥11 ≥876 50-53 398-422 60℃
N54 14.5-15.1 1450-1510 ≥10.0 ≥796 ≥11 ≥876 50-53 398-422 60℃
33M 11.3-11.7 1130-1170 ≥10.5 ≥836 ≥14 ≥1114 31-33 247-263 100℃
35M 11.7-12.2 1170-1220 ≥10.9 ≥868 ≥14 ≥1114 33-36 263-287 100℃
38M 12.2-12.5 1220-1250 ≥11.3 ≥899 ≥14 ≥1114 36-39 287-310 100℃
40M 12.5-12.8 1250-1280 ≥11.6 ≥923 ≥14 ≥1114 38-41 302-326 100℃
42M 12.8-13.2 1280-1320 ≥12.0 ≥955 ≥14 ≥1114 40-43 318-342 100℃
45M 13.2-13.8 1320-1380 ≥12.5 ≥995 ≥14 ≥1114 43-46 342-366 100℃
48M 13.6-14.3 1360-1430 ≥12.9 ≥1027 ≥14 ≥1114 46-49 366-390 100℃
50M 14.0-14.5 1400-1450 ≥13.0 ≥1033 ≥14 ≥1114 48-51 382-406 100℃
35H 11.7-12.2 1170-1220 ≥10.9 ≥868 ≥17 ≥1353 33-36 263-287 120℃
38H 12.2-12.5 1220-1250 ≥11.3 ≥899 ≥17 ≥1353 36-39 287-310 120℃
40H 12.5-12.8 1250-1280 ≥11.6 ≥923 ≥17 ≥1353 38-41 302-326 120℃
42H 12.8-13.2 1280-1320 ≥12.0 ≥955 ≥17 ≥1353 40-43 318-342 120℃
45H 13.2-13.6 1320-1360 ≥12.1 ≥963 ≥17 ≥1353 43-46 342-366 120℃
48H 13.7-14.3 1370-1430 ≥12.5 ≥995 ≥17 ≥1353 46-49 366-390 120℃
35SH 11.7-12.2 1170-1220 ≥11.0 ≥876 ≥20 ≥1592 33-36 263-287 150℃
38SH 12.2-12.5 1220-1250 ≥11.4 ≥907 ≥20 ≥1592 36-39 287-310 150℃
40SH 12.5-12.8 1250-1280 ≥11.8 ≥939 ≥20 ≥1592 38-41 302-326 150℃
42SH 12.8-13.2 1280-1320 ≥12.4 ≥987 ≥20 ≥1592 40-43 318-342 150℃
45SH 13.2-13.8 1320-1380 ≥12.6 ≥1003 ≥20 ≥1592 43-46 342-366 150℃
28UH 10.2-10.8 1020-1080 ≥9.6 ≥764 ≥25 ≥1990 26-29 207-231 180℃
30UH 10.8-11.3 1080-1130 ≥10.2 ≥812 ≥25 ≥1990 28-31 223-247 180℃
33UH 11.3-11.7 1130-1170 ≥10.7 ≥852 ≥25 ≥1990 31-34 247-271 180℃
35UH 11.8-12.2 1180-1220 ≥10.8 ≥860 ≥25 ≥1990 33-36 263-287 180℃
38UH 12.2-12.5 1220-1250 ≥11.0 ≥876 ≥25 ≥1990 36-39 287-310 180℃
40UH 12.5-12.8 1250-1280 ≥11.3 ≥899 ≥25 ≥1990 38-41 302-326 180℃
28EH 10.4-10.9 1040-1090 ≥9.8 ≥780 ≥30 ≥2388 26-29 207-231 200℃
30EH 10.8-11.3 1080-1130 ≥10.2 ≥812 ≥30 ≥2388 28-31 223-247 200℃
33EH 11.3-11.7 1130-1170 ≥10.5 ≥836 ≥30 ≥2388 31-34 247-271 200℃
35EH 11.7-12.2 1170-1220 ≥11.0 ≥876 ≥30 ≥2388 33-36 263-287 200℃
38EH 12.2-12.5 1220-1250 ≥11.3 ≥899 ≥30 ≥2388 36-39 287-310 200℃
28AH 10.4-10.9 1040-1090 ≥9.9 ≥787 ≥33 ≥2642 26-29 207-231 230℃
30AH 10.8-11.3 1080-1130 ≥10.3 ≥819 ≥33 ≥2642 28-31 223-247 230℃
33AH 11.3-11.7 1130-1170 ≥10.6 ≥843 ≥33 ≥2642 31-34 247-271 230℃
Common Types of Sintered Strong Neodymium Magnets for Sale by Shape
Strong Nd-Fe-B magnet material has good machinability, is suitable for different machining, and can be customized into various shape, the shape of disc, block/rectangle, ring, cylinder, tube, cube,
arc/segment, countersunk, bar, sphere, and cone are the most common types for rare earth neodymium (NdFeB)strong magnets.
Common Types of Powerful Rare Earth Ndfeb Magnets by Surface Treatment
Nickel,Zinc and Epoxy coated neodymium(NdFeB) strong magnets are the most widely used types;
Gold,silver,Teflon coated neodymium strong magnets also used for special application.
The rubber coated neodymium pot magnets and plastic coated neodymium (NdFeB)strong magnets are used as waterproof and rust-resistant neodymium magnets.
Common Types of Sintered Strong Neodymium Magnets for Sale by Grade
N35,N38,N40,N42,N45,N48,N50 and N52 are commonly used neodymium strong magnets, N52 neodymium magnet has the highest magnetic energy product.
The rare earth neodymium magnets with grade of H,SH,UH,EH,AH are used for higher working temperature.
Common Surface Treatments of Sintered Custom Rare Earth Neodymium Magnets and Basic Description for Each Kind of Surface Treatment
Surface Coating Thickness (Microns) Color Resistance
Passivation 1 Silver Grey Temporary Protection
Nickel Ni+Ni 10-20 Bright Silver Excellent Against Humidity
Ni+Cu+Ni
Zinc Zn 8-20 Bright Blue Good Against Salt Spray
C-Zn Shinny Color Excellent Against Salt Spray
Tin Ni+Cu+Sn 15-20 Silver Superior Against Humidity
Silver Ni+Cu+Ag 10-20 Silver Superior Against Humidity
Gold Ni+Cu+Au 10-20 Gold Superior Against Humidity
Copper Ni+Cu 10-20 Gold Temporary Protection
Epoxy Epoxy 15-25 Black,Red,Grey Excellent Against Humidity&Salt Spray
Ni+Cu+Epoxy
Zn+Epoxy
Parylene Parylene 5-20 Grey Excellent Against Humidity,Salt Spray,Superior Against Solvents,Gases, Fungi and Bacteria,FDA Approved
Chemical Ni 10-20 Silver Grey Excellent Against Humidity
Common surface treatment methods of sintered rare earth neodymium(NdFeB) strong magnets are as follows:
Phosphating can be adopted on neodymium strong magnets
Electroplating is the most commonly used surface treatment for strong neodymium magnets.
Electrophoresis is also a surface treatment way for powerful powerful rare earth magnets
Electroless(chemical)plating is used when there are particularly high requirements for corrosion protection.
Organic spraying is adopted when there are different color demands for strong neodymium magnets.
Sintered Neodymium(NdFeB) Strong Magnet Material Physical Properties
Parameter International Unit Standard Data
Curie Temperature(Tc) ℃ 310-380
Maximum Operating Temperature(Tw) ℃ 80-230
Hardness Hv 620
Electrical Resistivity (ᵨ) Ω.cm 1.8x10⁻⁴ ~2.0x10⁻⁴
Density(D) g/m³ 7.45~-7.65
Recoil Permeability(µ rec) 1.05
Magnetization Field Strength(Hs) kA/m ≧2400
kOe ≧30
Bending Strength Mpa 295-345
Temp. Coefficient of Br ％℃ -0.11~-0.12
Temp.Coefficient of Hcj ％℃ -0.5~-0.7
Rare Earth NdFeB Strong Magnets FAQ
How Strong Are Rare Earth Neodymium Magnets?
Rare earth neodymium magnets are very strong. You'll be surprised! An 8*5mm neodymium round disc magnet can produce a force of more than 1700 g (3.75 lb). They are very strong and have replaced
other types of magnets in many applications. Rare earth neodymium magnets are more than ten times stronger than ceramic magnets, so ceramic magnets can be replaced with smaller neodymium magnets
and produce the same (or more!) strength. Even small neodymium magnets can cause physical damage. The larger neodymium magnet can break your bones. Handle rare earth neodymium magnets with care!
How Are Rare Earth Neodymium Magnets Made Out?
Rare earth neodymium magnets are mainly made of alloys of neodymium, iron and boron. The specific composition will vary according to the required strength and the purpose of the magnet. Sintering
and bonding are two main manufacturing methods of neodymium magnets:
By heating the alloy in the furnace and then making the mixture into ingots, the ingots are ground into fine powder and pressed into the mold, and the powder mold is sintered into dense blocks
(sintering is the process of compacting the material and forming solid blocks by heating or pressurization without melting it to the liquefaction point.) The material is cut into its final shape,
coated or electroplated, and then magnetized. Thus, the finished sintered neodymium magnets are made out
Bonded neodymium magnets combine neodymium alloy powder with polymer adhesive. These components are pressed or extruded to form more complex shapes and magnetized powders than the commonly
available shapes and magnetized powders in sintered magnets.
What Is The Strongest Magnet on Earth?
The strongest magnets must be with the highest magnetic energy,rare earth magnet usually has high magnetic energy,and neodymium rare earth magnet is the strongest magnet on earth.
What Are Rare Earth Neodymium Magnets?
Rare earth neodymium magnets are not ordinary refrigerator magnets! They are the strongest permanent magnets. Perhaps you have never heard of rare earth neodymium magnets before, but you have ever
used them before. They are sometimes called neodymium iron boron (NdFeB) or neo magnets. Although rare earth neodymium magnets are super strong, they are also very light, so they are widely used.
Without this type of neodymium rare earth magnet, many technological progress in the past few decades are impossible!
If you want to know where to buy large neodymium magnets, please contact us, and we will be your best partner.
As one of industrial magnets suppliers, we will do our best to meet all the needs of customers.
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