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neodymium magnets

We offer blue color magnetic Nd2Fe14B - our proposal. All magnesy neodymowe in our store are available for immediate purchase (check the list). Check out the magnet price list for more details check the magnet price list

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MW 10x10 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010004

GTIN: 5906301810032

5

Diameter Ø

10 mm [±0,1 mm]

Height

10 mm [±0,1 mm]

Weight

5.89 g

Magnetization Direction

↑ axial

Load capacity

5.53 kg / 54.23 N

Magnetic Induction

553.84 mT

Coating

[NiCuNi] nickel

4.31 with VAT / pcs + price for transport

3.50 ZŁ net + 23% VAT / pcs

2.57 ZŁ net was the lowest price in the last 30 days

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MW 10x10 / N38 - cylindrical magnet
Specification/characteristics MW 10x10 / N38 - cylindrical magnet
properties
values
Cat. no.
010004
GTIN
5906301810032
Production/Distribution
Dhit sp. z o.o.
Country of origin
Poland / China / Germany
Customs code
85059029
Diameter Ø
10 mm [±0,1 mm]
Height
10 mm [±0,1 mm]
Weight
5.89 g
Magnetization Direction
↑ axial
Load capacity ~ ?
5.53 kg / 54.23 N
Magnetic Induction ~ ?
553.84 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 cylindrical magnet, composed of modern NdFeB material, which, with dimensions of Ø10x10 mm, guarantees optimal power. The MW 10x10 / N38 model features a tolerance of ±0.1mm and industrial build quality, making it an excellent solution for professional engineers and designers. As a magnetic rod with impressive force (approx. 5.53 kg), this product is available off-the-shelf from our warehouse in Poland, ensuring quick order fulfillment. Furthermore, its triple-layer Ni-Cu-Ni coating shields it against corrosion in standard operating conditions, guaranteeing an aesthetic appearance and durability for years.
This model is perfect for building generators, advanced sensors, and efficient filters, where maximum induction on a small surface counts. Thanks to the pull force of 54.23 N with a weight of only 5.89 g, this cylindrical magnet is indispensable in miniature devices and wherever low weight is crucial.
Due to the delicate structure of the ceramic sinter, we absolutely advise against force-fitting (so-called press-fit), as this risks chipping the coating of this precision component. To ensure stability in automation, specialized industrial adhesives are used, which do not react with the nickel coating and fill the gap, guaranteeing high repeatability of the connection.
Magnets N38 are strong enough for 90% of applications in automation and machine building, where excessive miniaturization with maximum force is not required. If you need even stronger magnets in the same volume (Ø10x10), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard in continuous sale in our store.
The presented product is a neodymium magnet with precisely defined parameters: diameter 10 mm and height 10 mm. The key parameter here is the holding force amounting to approximately 5.53 kg (force ~54.23 N), which, with such compact dimensions, proves the high grade of the NdFeB material. The product has a [NiCuNi] coating, which secures it against external factors, giving it an aesthetic, silvery shine.
This cylinder is magnetized axially (along the height of 10 mm), which means that the N and S poles are located on the flat, circular surfaces. 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 diametrically if your project requires it.

Pros as well as cons of neodymium magnets.

In addition to their long-term stability, neodymium magnets provide the following advantages:

  • They virtually do not lose strength, because even after ten years the decline in efficiency is only ~1% (based on calculations),
  • They have excellent resistance to weakening of magnetic properties when exposed to external fields,
  • By covering with a lustrous coating of silver, the element presents an proper look,
  • They are known for high magnetic induction at the operating surface, which increases their power,
  • Thanks to resistance to high temperature, they are able to function (depending on the shape) even at temperatures up to 230°C and higher...
  • Possibility of exact machining as well as adjusting to complex requirements,
  • Universal use in modern technologies – they serve a role in data components, drive modules, precision medical tools, also industrial machines.
  • Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in small dimensions, which makes them useful in compact constructions

Problematic aspects of neodymium magnets: weaknesses and usage proposals

  • Susceptibility to cracking is one of their disadvantages. Upon strong impact they can break. We recommend keeping them in a steel housing, which not only secures them against impacts but also raises their durability
  • We warn that neodymium magnets can reduce their strength at high temperatures. To prevent this, we recommend our specialized [AH] magnets, which work effectively even at 230°C.
  • Due to the susceptibility of magnets to corrosion in a humid environment, we advise using waterproof magnets made of rubber, plastic or other material resistant to moisture, in case of application outdoors
  • Limited ability of producing threads in the magnet and complicated forms - recommended is casing - magnetic holder.
  • Health risk to health – tiny shards of magnets pose a threat, when accidentally swallowed, which becomes key in the aspect of protecting the youngest. It is also worth noting that small elements of these devices can disrupt the diagnostic process medical after entering the body.
  • Higher cost of purchase is one of the disadvantages compared to ceramic magnets, especially in budget applications

Maximum magnetic pulling forcewhat contributes to it?

Magnet power was determined for the most favorable conditions, assuming:

  • with the contact of a sheet made of special test steel, guaranteeing full magnetic saturation
  • whose transverse dimension equals approx. 10 mm
  • with an ground contact surface
  • without any air gap between the magnet and steel
  • during detachment in a direction perpendicular to the mounting surface
  • in stable room temperature

Determinants of practical lifting force of a magnet

Please note that the application force will differ depending on the following factors, in order of importance:

  • Distance – the presence of any layer (paint, dirt, gap) interrupts the magnetic circuit, which reduces capacity steeply (even by 50% at 0.5 mm).
  • Angle of force application – maximum parameter is reached only during pulling at a 90° angle. The force required to slide of the magnet along the surface is usually several times smaller (approx. 1/5 of the lifting capacity).
  • Metal thickness – thin material does not allow full use of the magnet. Magnetic flux passes through the material instead of generating force.
  • Metal type – different alloys reacts the same. High carbon content worsen the attraction effect.
  • Surface quality – the smoother and more polished the plate, the larger the contact zone and higher the lifting capacity. Unevenness creates an air distance.
  • Thermal conditions – NdFeB sinters have a negative temperature coefficient. At higher temperatures they are weaker, and at low temperatures they can be stronger (up to a certain limit).

* Lifting capacity testing was carried out on plates with a smooth surface of suitable thickness, under perpendicular forces, in contrast under shearing force the holding force is lower. In addition, even a small distance {between} the magnet and the plate reduces the lifting capacity.

H&S for magnets

Fire risk

Powder produced during machining of magnets is combustible. Do not drill into magnets unless you are an expert.

No play value

Product intended for adults. Tiny parts can be swallowed, leading to severe trauma. Keep out of reach of kids and pets.

Allergic reactions

Certain individuals experience a contact allergy to Ni, which is the typical protective layer for neodymium magnets. Extended handling can result in a rash. We recommend wear protective gloves.

Medical interference

People with a ICD should keep an absolute distance from magnets. The magnetism can disrupt the operation of the implant.

Cards and drives

Avoid bringing magnets close to a wallet, computer, or TV. The magnetic field can irreversibly ruin these devices and wipe information from cards.

Crushing risk

Protect your hands. Two powerful magnets will join instantly with a force of several hundred kilograms, destroying anything in their path. Exercise extreme caution!

Risk of cracking

Despite metallic appearance, neodymium is delicate and cannot withstand shocks. Avoid impacts, as the magnet may crumble into hazardous fragments.

Maximum temperature

Keep cool. NdFeB magnets are sensitive to heat. If you need resistance above 80°C, inquire about special high-temperature series (H, SH, UH).

Conscious usage

Before use, check safety instructions. Uncontrolled attraction can destroy the magnet or hurt your hand. Be predictive.

Impact on smartphones

GPS units and mobile phones are highly susceptible to magnetic fields. Close proximity with a powerful NdFeB magnet can decalibrate the internal compass in your phone.

Caution!

Want to know more? Check our post: Why are neodymium magnets dangerous?

Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98