Neodymium
Rare Earth Magnets
What
are neo Magnets?
A neodymium magnet (a special type of
rare-earth magnet) is a powerful magnet made of a combination of neodymium,
iron, and boron — Nd2Fe14B. These magnets are very
strong in comparison to their mass, but are also mechanically fragile and lose
their magnetism at temperatures above 80 degrees Celsius. Neodymium magnets are
rated in strength from N24 to the strongest N48. For example
N35 is 35 Mega
Gauss or 3500 Tesla. Both Gauss and Tesla are units of magnetic flux density. 1
Tesla is equivalent to 10,000 Gauss. The Earth's magnetic field in its core is
25 Gauss. Refrigerator magnet is 50 Gauss. The N35 magnets are 35,000,000 Gauss.
Cylindrical Neodymium Magnets
We offer N48 magnet
disks with outer diameter of 0.5 inch and thickness of 0.125 inch. PART#N48.500.125
This product is also available
in packs of 10, packs of 100 and packs of 1000 with discounted wholesale prices.
US
dime in the picture is for size comparison. |
 
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| Other sizes and shapes of
Neodymium magnets are usually in stock. Following is an inventory list of
Neodymium magnets at the time of this entry.
All items available for retail can be
found in our online stores. |
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| Neodymium ball magnets are able to attract each
other and form patterns such as rings, bracelets and sheets.
|
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| Neodymium square and cubic magnets have their
magnetic poles on their larger sides. |
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Inventory of Neodymium magnets:
|
Part Number |
Qty |
Shape |
Dimension |
|
N35.180.060 |
14000 |
Disk, Cylinder |
D.0.187"x0.06"(M) |
|
N35.500.500.500 |
4200 |
Cube |
D.0.22"x0.25"(M) |
|
N35.250 |
12000 |
Spherical |
D.0.22"x0.50"(M) |
|
N35.250.250 |
114000 |
Disk, Cylinder |
D.0.25"x0.25"(M) |
|
N35.250.500 |
43100 |
Disk, Cylinder |
D.0.25"x0.50"(M) |
|
N35.500.125 |
19000 |
Disk, Cylinder |
D.0.50"x0.125"(M) |
|
N35.500.180 |
500 |
Disk, Cylinder |
D.0.50"x0.187"(M) |
|
N35.500.200 |
18000 |
Disk, Cylinder |
D.0.50"x0.20"(M) |
|
N35.500.250 |
11000 |
Disk, Cylinder |
D.0.50"x0.25"(M) |
|
N35.500.500 |
24000 |
Disk, Cylinder |
D.0.50"x0.50"(M) |
|
N35.500.1000 |
3000 |
Disk, Cylinder |
D.0.50"x1.00"(M) |
|
N35.750.250 |
2000 |
Disk, Cylinder |
D 0.75" x 0.25' |
|
N35.1000.1000.250 |
500 |
Square |
1" x 1" x 0.25" |
|
N40.1000.1000.500 |
600 |
Square |
1" x 1" x 0.50" |
|
N48.500.125 |
5000 |
Disk, Cylinder |
D.0.50"x0.125"(M) |
| Note: Inventories and
prices are subject to change. Wholesale and large quantity prices are up to 80%
off the list price. Please contact us with your inquiries. |
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Gauss rating for
Neodymium magnets:
The Neodymium magnets
have a simple naming method. They all start with "N" which simply stands
for "Neodymium" and is followed by a two digit number.
This number represents the maximum energy product in Mega-Gauss Oersteds
(MGOe) where 1MGOe (cgs units) equals 7958kJ/m3 (SI units). The range
available used to be N24 up to N52. The lower grades are no longer made
and the range now starts at around N35. N50 is the highest readily
available grade. N52 is possible but only in certain sizes.
The current range of Neodymium Iron Boron magnets is as follows:-
N35, N38, N40, N42, N45, N48, N50, N52 |
* Residual Flux Density, Br, is the magnetic
induction remaining in a saturated magnetic material after the magnetizing field
has been removed.
! ! ! WARNING
! ! !
Neodymium magnets are
dangerously strong. Smaller ones can pinch the skin while larger ones can crush
your bone. When two of neodymium magnets touch each other, most adults are not
able to separate them. All neodymium magnets larger than one square inch at the
pole come with hard foam spacers that make it possible to separate them. Wear
gloves and goggles while handling. Neodymium magnets can shatter explosively
when attract to other magnets and metals at very high speed.
We
accept custom manufacturing of neodymium magnets:
For orders as small as $500 we accept custom
manufacturing of neo magnets in any standard shape and size you request. We
can also manufacture irregular shape Neodymium super magnets based on your
specifications.
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Distributors of scientific and educational products
Where to buy?
Most pictures are linked to
the pricing and online store for fast and convenient ordering
Our products are available at the following
online stores. For large orders please call in advance and verify the
availability, wholesale discounts and shipping options. If you cannot find any
product in the online store of your choice, please use the search option of the
store or call (973)777-3113 for further assistance.
All orders will be shipped from our
warehouse in United States (USA). We ship worldwide
to most countries including U.S., Canada, Australia, United Kingdom, New
Zealand, Germany, France, Netherlands, and many other countries.
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