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neodymium magnets

We provide red color magnets Nd2Fe14B - our proposal. All magnesy in our store are available for immediate purchase (see the list). See the magnet price list for more details check the magnet price list

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MW 29x10 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010053

GTIN: 5906301810520

5

Diameter Ø [±0,1 mm]

29 mm

Height [±0,1 mm]

10 mm

Weight

49.54 g

Magnetization Direction

↑ axial

Load capacity

16.04 kg / 157.3 N

Magnetic Induction

351.88 mT

Coating

[NiCuNi] nickel

17.34 with VAT / pcs + price for transport

14.10 ZŁ net + 23% VAT / pcs

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MW 29x10 / N38 - cylindrical magnet
Specification/characteristics MW 29x10 / N38 - cylindrical magnet
properties
values
Cat. no.
010053
GTIN
5906301810520
Production/Distribution
Dhit sp. z o.o.
Country of origin
Poland / China / Germany
Customs code
85059029
Diameter Ø
29 mm [±0,1 mm]
Height
10 mm [±0,1 mm]
Weight
49.54 g [±0,1 mm]
Magnetization Direction
↑ axial
Load capacity ~ ?
16.04 kg / 157.3 N
Magnetic Induction ~ ?
351.88 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

This product is an incredibly powerful cylinder magnet, produced from durable NdFeB material, which, with dimensions of Ø29x10 mm, guarantees the highest energy density. This specific item features an accuracy of ±0.1mm and professional build quality, making it a perfect solution for the most demanding engineers and designers. As a cylindrical magnet with significant force (approx. 16.04 kg), this product is in stock from our European logistics center, ensuring rapid order fulfillment. Furthermore, its Ni-Cu-Ni coating effectively protects it against corrosion in standard operating conditions, guaranteeing an aesthetic appearance and durability for years.
It successfully proves itself in DIY projects, advanced automation, and broadly understood industry, serving as a fastening or actuating element. Thanks to the pull force of 157.3 N with a weight of only 49.54 g, this cylindrical magnet is indispensable in miniature devices and wherever every gram matters.
Due to the brittleness of the NdFeB material, we absolutely advise against force-fitting (so-called press-fit), as this risks immediate cracking of this precision component. To ensure stability in industry, anaerobic resins are used, which do not react with the nickel coating and fill the gap, guaranteeing durability of the connection.
Grade N38 is the most popular standard for industrial neodymium magnets, offering a great economic balance and high resistance to demagnetization. If you need even stronger magnets in the same volume (Ø29x10), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard available off-the-shelf in our warehouse.
This model is characterized by dimensions Ø29x10 mm, which, at a weight of 49.54 g, makes it an element with impressive magnetic energy density. The key parameter here is the lifting capacity amounting to approximately 16.04 kg (force ~157.3 N), which, with such defined dimensions, proves the high power of the NdFeB material. The product has a [NiCuNi] coating, which secures it against oxidation, 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 29 mm. Thanks to this, the magnet can be easily glued into a hole and achieve a strong field on the front surface. On request, we can also produce versions magnetized diametrically if your project requires it.

Strengths as well as weaknesses of neodymium magnets.

In addition to their pulling strength, neodymium magnets provide the following advantages:

  • They have constant strength, and over around ten years their performance decreases symbolically – ~1% (according to theory),
  • They possess excellent resistance to magnetism drop as a result of external magnetic sources,
  • By covering with a lustrous layer of silver, the element presents an professional look,
  • The surface of neodymium magnets generates a maximum magnetic field – this is one of their assets,
  • Due to their durability and thermal resistance, neodymium magnets are capable of operate (depending on the form) even at high temperatures reaching 230°C or more...
  • Considering the ability of precise forming and customization to unique solutions, NdFeB magnets can be manufactured in a wide range of forms and dimensions, which expands the range of possible applications,
  • Wide application in innovative solutions – they find application in magnetic memories, brushless drives, medical equipment, also complex engineering applications.
  • Compactness – despite small sizes they provide effective action, making them ideal for precision applications

Cons of neodymium magnets: weaknesses and usage proposals

  • They are fragile upon heavy impacts. To avoid cracks, it is worth protecting magnets using a steel holder. Such protection not only shields 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 advise our specialized [AH] magnets, which work effectively even at 230°C.
  • They rust in a humid environment. For use outdoors we recommend using waterproof magnets e.g. in rubber, plastic
  • We recommend a housing - magnetic mount, due to difficulties in producing nuts inside the magnet and complex shapes.
  • Potential hazard related to microscopic parts of magnets can be dangerous, if swallowed, which becomes key in the context of child health protection. It is also worth noting that tiny parts of these devices can complicate diagnosis medical in case of swallowing.
  • Due to expensive raw materials, their price exceeds standard values,

Highest magnetic holding forcewhat contributes to it?

The specified lifting capacity refers to the maximum value, measured under laboratory conditions, meaning:

  • using a sheet made of low-carbon steel, acting as a magnetic yoke
  • whose thickness equals approx. 10 mm
  • with a plane free of scratches
  • without any clearance between the magnet and steel
  • for force acting at a right angle (pull-off, not shear)
  • at conditions approx. 20°C

Key elements affecting lifting force

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

  • Distance (betwixt the magnet and the metal), as even a tiny clearance (e.g. 0.5 mm) can cause a reduction in lifting capacity by up to 50% (this also applies to varnish, corrosion or dirt).
  • Loading method – declared lifting capacity refers to pulling vertically. When slipping, the magnet exhibits significantly lower power (typically approx. 20-30% of nominal force).
  • Element thickness – to utilize 100% power, the steel must be adequately massive. Paper-thin metal limits the attraction force (the magnet "punches through" it).
  • Material type – the best choice is pure iron steel. Cast iron may attract less.
  • Surface quality – the more even the plate, the larger the contact zone and higher the lifting capacity. Unevenness creates an air distance.
  • Temperature influence – high temperature reduces pulling force. Too high temperature can permanently demagnetize the magnet.

* Holding force was checked on the plate surface of 20 mm thickness, when a perpendicular force was applied, however under shearing force the load capacity is reduced by as much as 5 times. Additionally, even a small distance {between} the magnet and the plate reduces the lifting capacity.

H&S for magnets

Eye protection

Protect your eyes. Magnets can fracture upon violent connection, launching shards into the air. Wear goggles.

Flammability

Drilling and cutting of neodymium magnets carries a risk of fire hazard. Neodymium dust oxidizes rapidly with oxygen and is hard to extinguish.

Powerful field

Handle magnets with awareness. Their immense force can shock even professionals. Plan your moves and respect their force.

Maximum temperature

Watch the temperature. Exposing the magnet above 80 degrees Celsius will destroy its magnetic structure and strength.

Electronic devices

Avoid bringing magnets near a purse, computer, or screen. The magnetism can destroy these devices and wipe information from cards.

Avoid contact if allergic

Allergy Notice: The nickel-copper-nickel coating consists of nickel. If redness appears, immediately stop handling magnets and wear gloves.

Medical interference

Warning for patients: Powerful magnets affect electronics. Keep minimum 30 cm distance or request help to handle the magnets.

Crushing force

Watch your fingers. Two large magnets will join immediately with a force of several hundred kilograms, crushing everything in their path. Exercise extreme caution!

Keep away from children

Product intended for adults. Tiny parts pose a choking risk, leading to intestinal necrosis. Store out of reach of children and animals.

GPS and phone interference

Remember: rare earth magnets generate a field that disrupts precision electronics. Keep a safe distance from your mobile, tablet, and navigation systems.

Important!

Details about risks in the article: Magnet Safety Guide.

Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98