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neodymium magnets

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MW 14x10 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010391

GTIN: 5906301811084

5

Diameter Ø [±0,1 mm]

14 mm

Height [±0,1 mm]

10 mm

Weight

11.55 g

Magnetization Direction

↑ axial

Load capacity

7.74 kg / 75.9 N

Magnetic Induction

507.48 mT

Coating

[NiCuNi] nickel

6.84 with VAT / pcs + price for transport

5.56 ZŁ net + 23% VAT / pcs

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MW 14x10 / N38 - cylindrical magnet
Specification/characteristics MW 14x10 / N38 - cylindrical magnet
properties
values
Cat. no.
010391
GTIN
5906301811084
Production/Distribution
Dhit sp. z o.o.
Country of origin
Poland / China / Germany
Customs code
85059029
Diameter Ø
14 mm [±0,1 mm]
Height
10 mm [±0,1 mm]
Weight
11.55 g [±0,1 mm]
Magnetization Direction
↑ axial
Load capacity ~ ?
7.74 kg / 75.9 N
Magnetic Induction ~ ?
507.48 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 cylinder magnet, composed of modern NdFeB material, which, with dimensions of Ø14x10 mm, guarantees the highest energy density. The MW 14x10 / N38 component features high dimensional repeatability and professional build quality, making it an excellent solution for the most demanding engineers and designers. As a cylindrical magnet with significant force (approx. 7.74 kg), this product is in stock from our European logistics center, ensuring quick order fulfillment. Moreover, its Ni-Cu-Ni coating secures it against corrosion in typical operating conditions, guaranteeing an aesthetic appearance and durability for years.
It finds application in modeling, advanced automation, and broadly understood industry, serving as a positioning or actuating element. Thanks to the pull force of 75.9 N with a weight of only 11.55 g, this cylindrical magnet is indispensable in electronics and wherever low weight is crucial.
Since our magnets have a very precise dimensions, the best method is to glue them into holes with a slightly larger diameter (e.g., 14.1 mm) using epoxy glues. To ensure long-term durability in industry, specialized industrial adhesives are used, which are safe for nickel and fill the gap, guaranteeing durability of the connection.
Grade N38 is the most frequently chosen standard for professional neodymium magnets, offering an optimal price-to-power ratio and operational stability. If you need even stronger magnets in the same volume (Ø14x10), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard in continuous sale in our warehouse.
This model is characterized by dimensions Ø14x10 mm, which, at a weight of 11.55 g, makes it an element with high magnetic energy density. The key parameter here is the holding force amounting to approximately 7.74 kg (force ~75.9 N), which, with such compact dimensions, proves the high grade of the NdFeB material. The product has a [NiCuNi] coating, which protects the surface against oxidation, 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 standard 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 rare earth magnets.

Apart from their notable holding force, neodymium magnets have these key benefits:

  • They do not lose magnetism, even over around 10 years – the reduction in lifting capacity is only ~1% (based on measurements),
  • Magnets effectively protect themselves against demagnetization caused by external fields,
  • In other words, due to the smooth finish of gold, the element gains visual value,
  • They show high magnetic induction at the operating surface, which affects their effectiveness,
  • Neodymium magnets are characterized by very high magnetic induction on the magnet surface and can work (depending on the form) even at a temperature of 230°C or more...
  • Possibility of individual creating and optimizing to defined applications,
  • Wide application in modern industrial fields – they find application in hard drives, motor assemblies, diagnostic systems, as well as complex engineering applications.
  • Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications

Characteristics of disadvantages of neodymium magnets: weaknesses and usage proposals

  • Brittleness is one of their disadvantages. Upon strong impact they can break. We recommend keeping them in a special holder, which not only secures them against impacts but also raises their durability
  • When exposed to high temperature, neodymium magnets experience a drop in force. Often, when the temperature exceeds 80°C, their power decreases (depending on the size and shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
  • They rust in a humid environment - during use outdoors we recommend using waterproof magnets e.g. in rubber, plastic
  • We suggest cover - magnetic mechanism, due to difficulties in creating threads inside the magnet and complex forms.
  • Health risk to health – tiny shards of magnets can be dangerous, when accidentally swallowed, which becomes key in the aspect of protecting the youngest. It is also worth noting that tiny parts of these magnets are able to disrupt the diagnostic process medical in case of swallowing.
  • Higher cost of purchase is one of the disadvantages compared to ceramic magnets, especially in budget applications

Highest magnetic holding forcewhat it depends on?

The load parameter shown concerns the maximum value, measured under optimal environment, meaning:

  • on a block made of mild steel, optimally conducting the magnetic flux
  • with a cross-section minimum 10 mm
  • with an ideally smooth contact surface
  • under conditions of gap-free contact (surface-to-surface)
  • during detachment in a direction vertical to the mounting surface
  • in temp. approx. 20°C

Determinants of practical lifting force of a magnet

During everyday use, the actual holding force is determined by many variables, listed from crucial:

  • Gap between surfaces – even a fraction of a millimeter of separation (caused e.g. by varnish or dirt) drastically reduces the pulling force, often by half at just 0.5 mm.
  • Loading method – declared lifting capacity refers to pulling vertically. When attempting to slide, the magnet exhibits much less (typically approx. 20-30% of maximum force).
  • Steel thickness – insufficiently thick sheet does not close the flux, causing part of the power to be lost into the air.
  • Material composition – not every steel attracts identically. High carbon content worsen the interaction with the magnet.
  • Base smoothness – the more even the plate, the better the adhesion and stronger the hold. Roughness acts like micro-gaps.
  • Temperature influence – high temperature weakens pulling force. Exceeding the limit temperature can permanently damage the magnet.

* Holding force was measured on a smooth steel plate of 20 mm thickness, when the force acted perpendicularly, however under attempts to slide the magnet the lifting capacity is smaller. In addition, even a small distance {between} the magnet and the plate decreases the lifting capacity.

Warnings

Allergic reactions

A percentage of the population suffer from a contact allergy to nickel, which is the standard coating for NdFeB magnets. Frequent touching may cause skin redness. It is best to wear protective gloves.

Do not drill into magnets

Fire warning: Rare earth powder is explosive. Do not process magnets in home conditions as this risks ignition.

Power loss in heat

Monitor thermal conditions. Exposing the magnet above 80 degrees Celsius will permanently weaken its properties and strength.

Magnetic interference

An intense magnetic field disrupts the functioning of compasses in phones and navigation systems. Keep magnets close to a smartphone to avoid breaking the sensors.

Handling rules

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

Keep away from computers

Do not bring magnets near a wallet, laptop, or screen. The magnetism can permanently damage these devices and erase data from cards.

Material brittleness

Despite metallic appearance, neodymium is brittle and not impact-resistant. Avoid impacts, as the magnet may crumble into sharp, dangerous pieces.

Pacemakers

Warning for patients: Strong magnetic fields affect electronics. Maintain at least 30 cm distance or ask another person to work with the magnets.

Adults only

Adult use only. Small elements can be swallowed, causing severe trauma. Keep away from kids and pets.

Pinching danger

Large magnets can break fingers in a fraction of a second. Do not place your hand betwixt two strong magnets.

Caution!

Looking for details? Check our post: Are neodymium magnets dangerous?

Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98