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neodymium magnets

We offer red color magnets Nd2Fe14B - our store's offer. All "magnets" in our store are available for immediate delivery (see the list). Check out the magnet price list for more details see the magnet price list

Magnets for water searching F200 GOLD

Where to purchase very strong neodymium magnet? Holders with magnets in airtight and durable steel casing are excellent for use in challenging weather, including snow and rain more

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MW 8x15 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010102

GTIN: 5906301811015

5

Diameter Ø [±0,1 mm]

8 mm

Height [±0,1 mm]

15 mm

Weight

5.65 g

Magnetization Direction

↑ axial

Load capacity

6.64 kg / 65.12 N

Magnetic Induction

598.12 mT

Coating

[NiCuNi] nickel

3.44 with VAT / pcs + price for transport

2.80 ZŁ net + 23% VAT / pcs

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MW 8x15 / N38 - cylindrical magnet
Specification/characteristics MW 8x15 / N38 - cylindrical magnet
properties
values
Cat. no.
010102
GTIN
5906301811015
Production/Distribution
Dhit sp. z o.o.
Country of origin
Poland / China / Germany
Customs code
85059029
Diameter Ø
8 mm [±0,1 mm]
Height
15 mm [±0,1 mm]
Weight
5.65 g [±0,1 mm]
Magnetization Direction
↑ axial
Load capacity ~ ?
6.64 kg / 65.12 N
Magnetic Induction ~ ?
598.12 mT
Coating
[NiCuNi] nickel
Manufacturing Tolerance
± 0.1 mm

Magnetic properties of material N38

properties
values
units
remenance Br [Min. - Max.] ?
12.2-12.6
kGs
remenance Br [Min. - Max.] ?
1220-1260
T
coercivity bHc ?
10.8-11.5
kOe
coercivity bHc ?
860-915
kA/m
actual internal force iHc
≥ 12
kOe
actual internal force iHc
≥ 955
kA/m
energy density [Min. - Max.] ?
36-38
BH max MGOe
energy density [Min. - Max.] ?
287-303
BH max KJ/m
max. temperature ?
≤ 80
°C

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

properties
values
units
Vickers hardness
≥550
Hv
Density
≥7.4
g/cm3
Curie Temperature TC
312 - 380
°C
Curie Temperature TF
593 - 716
°F
Specific resistance
150
μΩ⋅Cm
Bending strength
250
Mpa
Compressive strength
1000~1100
Mpa
Thermal expansion parallel (∥) to orientation (M)
(3-4) x 106
°C-1
Thermal expansion perpendicular (⊥) to orientation (M)
-(1-3) x 10-6
°C-1
Young's modulus
1.7 x 104
kg/mm²

Shopping tips

The offered product is an extremely powerful rod magnet, composed of durable NdFeB material, which, with dimensions of Ø8x15 mm, guarantees maximum efficiency. This specific item is characterized by high dimensional repeatability and industrial build quality, making it an ideal solution for the most demanding engineers and designers. As a magnetic rod with impressive force (approx. 6.64 kg), this product is available off-the-shelf from our European logistics center, ensuring rapid order fulfillment. Additionally, its triple-layer Ni-Cu-Ni coating secures it against corrosion in standard operating conditions, ensuring an aesthetic appearance and durability for years.
This model is perfect for building generators, advanced sensors, and efficient filters, where field concentration on a small surface counts. Thanks to the high power of 65.12 N with a weight of only 5.65 g, this rod is indispensable in miniature devices and wherever every gram matters.
Since our magnets have a tolerance of ±0.1mm, the best method is to glue them into holes with a slightly larger diameter (e.g., 8.1 mm) using two-component epoxy glues. To ensure stability in automation, specialized industrial adhesives are used, which do not react with the nickel coating and fill the gap, guaranteeing durability of the connection.
Magnets NdFeB grade N38 are suitable for 90% of applications in automation and machine building, where excessive miniaturization with maximum force is not required. If you need the strongest magnets in the same volume (Ø8x15), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard available off-the-shelf in our store.
The presented product is a neodymium magnet with precisely defined parameters: diameter 8 mm and height 15 mm. The value of 65.12 N means that the magnet is capable of holding a weight many times exceeding its own mass of 5.65 g. The product has a [NiCuNi] coating, which protects the surface against external factors, giving it an aesthetic, silvery shine.
Standardly, the magnetic axis runs through the center of the cylinder, causing the greatest attraction force to occur on the bases with a diameter of 8 mm. Such an arrangement is most desirable when connecting magnets in stacks (e.g., in filters) or when mounting in sockets at the bottom of a hole. On request, we can also produce versions magnetized through the diameter if your project requires it.

Advantages and disadvantages of neodymium magnets.

Besides their durability, neodymium magnets are valued for these benefits:

  • They retain magnetic properties for nearly ten years – the drop is just ~1% (based on simulations),
  • They feature excellent resistance to magnetic field loss as a result of external fields,
  • By covering with a decorative coating of nickel, the element presents an elegant look,
  • The surface of neodymium magnets generates a unique magnetic field – this is one of their assets,
  • Through (appropriate) combination of ingredients, they can achieve high thermal resistance, allowing for operation at temperatures approaching 230°C and above...
  • In view of the option of flexible shaping and customization to individualized needs, NdFeB magnets can be created in a wide range of forms and dimensions, which makes them more universal,
  • Universal use in modern industrial fields – they are utilized in data components, drive modules, precision medical tools, and technologically advanced constructions.
  • Thanks to efficiency per cm³, small magnets offer high operating force, in miniature format,

Disadvantages of neodymium magnets:

  • They are prone to damage upon heavy impacts. To avoid cracks, it is worth securing magnets using a steel holder. Such protection not only protects the magnet but also improves its resistance to damage
  • We warn that neodymium magnets can reduce their power at high temperatures. To prevent this, we suggest our specialized [AH] magnets, which work effectively even at 230°C.
  • They oxidize in a humid environment. For use outdoors we recommend using waterproof magnets e.g. in rubber, plastic
  • We suggest a housing - magnetic mechanism, due to difficulties in creating nuts inside the magnet and complex forms.
  • Possible danger to health – tiny shards of magnets pose a threat, in case of ingestion, which is particularly important in the aspect of protecting the youngest. Additionally, small elements of these products can be problematic in diagnostics medical after entering the body.
  • High unit price – neodymium magnets are more expensive than other types of magnets (e.g. ferrite), which increases costs of application in large quantities

Maximum holding power of the magnet – what affects it?

The specified lifting capacity refers to the limit force, recorded under laboratory conditions, namely:

  • on a plate made of structural steel, optimally conducting the magnetic field
  • with a cross-section minimum 10 mm
  • characterized by lack of roughness
  • under conditions of ideal adhesion (metal-to-metal)
  • during pulling in a direction vertical to the plane
  • at standard ambient temperature

Practical lifting capacity: influencing factors

Please note that the application force may be lower influenced by the following factors, starting with the most relevant:

  • Distance – the presence of foreign body (paint, tape, air) acts as an insulator, which reduces capacity rapidly (even by 50% at 0.5 mm).
  • Force direction – declared lifting capacity refers to pulling vertically. When applying parallel force, the magnet holds much less (typically approx. 20-30% of maximum force).
  • Element thickness – to utilize 100% power, the steel must be adequately massive. Thin sheet restricts the attraction force (the magnet "punches through" it).
  • Material composition – different alloys reacts the same. Alloy additives worsen the interaction with the magnet.
  • Surface condition – ground elements ensure maximum contact, which improves force. Rough surfaces reduce efficiency.
  • Temperature influence – hot environment reduces magnetic field. Too high temperature can permanently damage the magnet.

* Lifting capacity was assessed using a polished steel plate of optimal thickness (min. 20 mm), under vertically applied force, in contrast under shearing force the lifting capacity is smaller. In addition, even a minimal clearance {between} the magnet’s surface and the plate decreases the holding force.

H&S for magnets

Danger to the youngest

Always store magnets away from children. Ingestion danger is high, and the effects of magnets clamping inside the body are very dangerous.

Electronic devices

Data protection: Neodymium magnets can damage data carriers and sensitive devices (pacemakers, medical aids, mechanical watches).

Crushing risk

Big blocks can smash fingers in a fraction of a second. Do not put your hand betwixt two strong magnets.

Do not underestimate power

Use magnets consciously. Their immense force can surprise even experienced users. Be vigilant and respect their force.

Flammability

Dust created during cutting of magnets is combustible. Avoid drilling into magnets unless you are an expert.

Heat warning

Regular neodymium magnets (grade N) lose magnetization when the temperature surpasses 80°C. The loss of strength is permanent.

GPS Danger

Be aware: rare earth magnets generate a field that interferes with precision electronics. Maintain a safe distance from your phone, tablet, and navigation systems.

Nickel allergy

Warning for allergy sufferers: The Ni-Cu-Ni coating contains nickel. If an allergic reaction occurs, immediately stop working with magnets and wear gloves.

Protective goggles

Despite metallic appearance, neodymium is brittle and cannot withstand shocks. Avoid impacts, as the magnet may crumble into sharp, dangerous pieces.

ICD Warning

Life threat: Strong magnets can deactivate pacemakers and defibrillators. Stay away if you have electronic implants.

Warning!

Looking for details? Read our article: Why are neodymium magnets dangerous?

Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98