← previous

Product available shipping tomorrow

MW 10x20 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010007

GTIN: 5906301810063

Diameter Ø [±0,1 mm]

10 mm

Height [±0,1 mm]

20 mm

Weight

11.78 g

Magnetization Direction

↑ axial

Load capacity

11.06 kg / 108.46 N

Magnetic Induction

600.73 mT

Coating

[NiCuNi] nickel

4.26 ZŁ with VAT / pcs + price for transport

3.46 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?

price from 1 pcs

3.46 ZŁ

4.26 ZŁ

price from 200 pcs

3.25 ZŁ

4.00 ZŁ

price from 750 pcs

3.01 ZŁ

3.70 ZŁ

Carbon Footprint – environmental impact GPSR Regulation – product safety

Can't decide what to choose?

Pick up the phone and ask +48 888 99 98 98 alternatively get in touch through form the contact section.
Weight and form of a magnet can be verified with our magnetic calculator.

Same-day shipping for orders placed before 14:00.

MW 10x20 / N38 - cylindrical magnet

Specification/characteristics MW 10x20 / N38 - cylindrical magnet

properties

values

Cat. no.

010007

GTIN

5906301810063

Production/Distribution

Dhit sp. z o.o.

Country of origin

Poland / China / Germany

Customs code

85059029

Diameter Ø

10 mm [±0,1 mm]

Height

20 mm [±0,1 mm]

Weight

11.78 g [±0,1 mm]

Magnetization Direction

↑ axial

Load capacity ~ ?

11.06 kg / 108.46 N

Magnetic Induction ~ ?

600.73 mT

Coating

[NiCuNi] nickel

Manufacturing Tolerance

± 0.1 mm

Magnetic properties of material N38

properties

values

units

coercivity bHc ?

860-915

kA/m

coercivity bHc ?

10.8-11.5

kOe

energy density [Min. - Max.] ?

287-303

BH max KJ/m

energy density [Min. - Max.] ?

36-38

BH max MGOe

remenance Br [Min. - Max.] ?

12.2-12.6

kGs

remenance Br [Min. - Max.] ?

1220-1260

actual internal force iHc

≥ 955

kA/m

actual internal force iHc

≥ 12

kOe

max. temperature ?

≤ 80

°C

Physical properties of NdFeB

properties

values

units

Vickers hardness

≥550

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

Produkt dostępny wysyłka jutro!

SM 25x125 [2xM8] / N42 - magnetic separator

319.80 ZŁ / pcs

Produkt dostępny wysyłka jutro!

NCM 40x13.5x5 / N38 - channel magnetic holder

14.19 ZŁ / pcs

Produkt dostępny wysyłka jutro!

MPL 10x7x3 / N38 - lamellar magnet

0.85 ZŁ / pcs

Produkt dostępny wysyłka jutro!

MW 33x30 / N38 - cylindrical magnet

52.89 ZŁ / pcs

Neodymium Cylindrical Magnets i.e. MW 10x20 / N38 are magnets created of neodymium in a cylindrical shape. They are known for their extremely powerful magnetic properties, which outperform traditional ferrite magnets. Thanks to their strength, they are frequently employed in devices that need powerful holding. The standard temperature resistance of such magnets is 80°C, but for magnets in a cylindrical form, this temperature rises with the growth of the magnet. Moreover, various special coatings, such as nickel, gold, or chrome, are frequently applied to the surface of neodymium magnets to enhance their durability to corrosion. The cylindrical shape is also very popular among neodymium magnets. The magnet with the designation MW 10x20 / N38 and a magnetic force 11.06 kg has a weight of only 11.78 grams.

Cylindrical neodymium magnets, also known as Nd₂Fe₁₄B, represent the strongest known material for magnet production. Their production process is complicated and includes melting special neodymium alloys with other metals such as iron and boron. After a series of processes, such as heat and mechanical treatment, the magnets become ready for use in varied applications, such as electric motors, audio-video equipment, and in the automotive and aerospace industries.
Moreover, although neodymium is a component of the strongest magnets, they are prone to corrosion in humid environments. For this reason, they are coated with a thin layer of epoxy to protect them from corrosion. It's worth noting that NdFeB neodymium magnets are about 13% lighter than SmCo magnets and, despite their power, are brittle, which requires care during their handling. Therefore, any mechanical processing should be done before they are magnetized.

In terms of safety, there are many recommendations regarding the use of these magnets. It is advisable to avoid their use in acidic, basic, organic environments or in solvents, and also in water or oil. Additionally, they can damage data on magnetic cards and hard drives, although data deletion using a neodymium magnet is not guaranteed.

In terms of purchasing of cylindrical neodymium magnets, several enterprises offer such products. One of the recommended suppliers is our company Dhit, situated in Ożarów Mazowiecki, the address can be found directly in the contact tab. It is recommended to visit the site for the current information and promotions, and before visiting, we recommend calling.

Although, cylindrical neodymium magnets are very useful in various applications, they can also constitute certain dangers. Due to their significant magnetic power, they can attract metallic objects with significant force, which can lead to damaging skin or other surfaces, especially hands. One should not use neodymium magnets near equipment or data storage devices, such as credit cards, as they can damage these devices in terms of magnetic recording. Moreover, neodymium magnets are susceptible to corrosion in humid environments, therefore they are coated with a thin protective layer. Generally, although they are handy, one should handle them with due caution.

Neodymium magnets, with the formula Nd₂Fe₁₄B, are currently the strong magnets on the market. They are produced through a complicated sintering process, which involves fusing specific alloys of neodymium with additional metals and then forming and heat treating. Their amazing magnetic strength comes from the unique production technology and chemical structure.
In terms of properties in different environments, neodymium magnets are susceptible to corrosion, especially in humid conditions. Therefore, they are often covered with thin coatings, such as silver, to preserve them from external factors and extend their lifespan. Temperatures exceeding 130°C can cause a loss of their magnetic strength, although there are particular types of neodymium magnets that can tolerate temperatures up to 230°C.
As for risks, it is important to avoid using neodymium magnets in acidic environments, basic conditions, organic or solvent environments, unless they are adequately insulated. Additionally, their use is not recommended in water, oil, or in an environment containing hydrogen, as they may lose their magnetic properties.

A cylindrical neodymium magnet of class N50 and N52 is a strong and extremely powerful metallic component in the form of a cylinder, that offers strong holding power and universal application. Attractive price, 24h delivery, durability and versatility.

Advantages and disadvantages of neodymium magnets NdFeB.

In addition to their remarkable strength, neodymium magnets offer the following advantages:

Their strength remains stable, and after around 10 years, it drops only by ~1% (according to research),
They protect against demagnetization induced by ambient magnetic fields effectively,
Because of the lustrous layer of nickel, the component looks high-end,
They exhibit elevated levels of magnetic induction near the outer area of the magnet,
These magnets tolerate extreme temperatures, often exceeding 230°C, when properly designed (in relation to profile),
The ability for custom shaping and customization to specific needs – neodymium magnets can be manufactured in many forms and dimensions, which amplifies their functionality across industries,
Significant impact in advanced technical fields – they serve a purpose in HDDs, electromechanical systems, diagnostic apparatus or even high-tech tools,
Thanks to their efficiency per volume, small magnets offer high magnetic performance, in miniature format,

Disadvantages of NdFeB magnets:

They are fragile when subjected to a sudden impact. If the magnets are exposed to mechanical hits, they should be placed in a protective enclosure. The steel housing, in the form of a holder, protects the magnet from damage , and at the same time enhances its overall resistance,
They lose magnetic force at high temperatures. Most neodymium magnets experience permanent degradation in strength when heated above 80°C (depending on the shape and height). However, we offer special variants with high temperature resistance that can operate up to 230°C or higher,
They rust in a damp environment. If exposed to rain, we recommend using sealed magnets, such as those made of rubber,
The use of a protective casing or external holder is recommended, since machining threads in neodymium magnets is difficult,
Safety concern related to magnet particles may arise, if ingested accidentally, which is notable in the health of young users. Additionally, miniature parts from these magnets can hinder health screening if inside the body,
In cases of mass production, neodymium magnet cost is a challenge,

Maximum holding power of the magnet – what contributes to it?

The given holding capacity of the magnet means the highest holding force, assessed under optimal conditions, namely:

with mild steel, serving as a magnetic flux conductor
of a thickness of at least 10 mm
with a smooth surface
in conditions of no clearance
in a perpendicular direction of force
under standard ambient temperature

Determinants of practical lifting force of a magnet

The lifting capacity of a magnet is influenced by in practice key elements, ordered from most important to least significant:

Air gap between the magnet and the plate, as even a very small distance (e.g. 0.5 mm) can cause a drop in lifting force of up to 50%.
Direction of applied force, because the maximum lifting capacity is achieved under perpendicular application. The force required to slide the magnet along the plate is usually several times lower.
Thickness of the plate, as a plate that is too thin causes part of the magnetic flux not to be used and to remain wasted in the air.
Material of the plate, because higher carbon content lowers holding force, while higher iron content increases it. The best choice is steel with high magnetic permeability and high saturation induction.
Surface of the plate, because the more smooth and polished it is, the better the contact and consequently the greater the magnetic saturation.
Operating temperature, since all permanent magnets have a negative temperature coefficient. This means that at high temperatures they are weaker, while at sub-zero temperatures they become slightly stronger.

* Lifting capacity was assessed by applying a smooth steel plate of optimal thickness (min. 20 mm), under vertically applied force, however under shearing force the load capacity is reduced by as much as 75%. Moreover, even a minimal clearance {between} the magnet and the plate lowers the load capacity.

Exercise Caution with Neodymium Magnets

Neodymium magnets are not recommended for people with pacemakers.

Neodymium magnets generate very strong magnetic fields that can interfere with the operation of a pacemaker. This is because many of these devices are equipped with a function that deactivates the device in a magnetic field.

It is important to maintain neodymium magnets away from youngest children.

Not all neodymium magnets are toys, so do not let children play with them. In the case of small magnets, they can be swallowed and cause choking. In such cases, the only solution is to undergo surgery to remove the magnets, and otherwise, it can even lead to death.

Under no circumstances should neodymium magnets be brought close to GPS and smartphones.

Neodymium magnets generate strong magnetic fields that interfere with magnetometers and compasses used in navigation, as well as internal compasses of smartphones and GPS devices.

Dust and powder from neodymium magnets are flammable.

Do not attempt to drill into neodymium magnets. Mechanical processing is also not recommended. Once crushed into fine powder or dust, this material becomes highly flammable.

Neodymium magnets are characterized by being fragile, which can cause them to become damaged.

In the event of a collision between two neodymium magnets, it can result in them getting chipped. They are coated with a shiny nickel plating similar to steel, but they are not as hard. At the moment of connection between the magnets, tiny sharp metal pieces can be propelled in various directions at high speed. Eye protection is recommended.

Under no circumstances should neodymium magnets be placed near a computer HDD, TV, and wallet.

Strong magnetic fields emitted by neodymium magnets can damage magnetic storage media such as floppy disks, credit cards, magnetic ID cards, cassette tapes, video tapes, or other devices. They can also damage televisions, VCRs, computer monitors, and CRT displays. You should especially avoid placing neodymium magnets near electronic devices.

Neodymium magnets are the strongest magnets ever invented. Their power can shock you.

Please review the information on how to handle neodymium magnets and avoid significant harm to your body, as well as prevent unintentional damage to the magnets.

The magnet is coated with nickel - be careful if you have an allergy.

Studies clearly indicate a small percentage of people who suffer from metal allergies such as nickel. An allergic reaction often manifests as skin redness and rash. If you have a nickel allergy, you can try wearing gloves or simply avoid direct contact with nickel-plated neodymium magnets.

Neodymium magnets can become demagnetized at high temperatures.

Although magnets have shown to retain their effectiveness up to 80°C or 175°F, this temperature may vary depending on the type of material, shape, and intended use of the magnet.

Magnets will attract to each other, so remember not to allow them to pinch together without control or place your fingers in their path.

Magnets attract each other within a distance of several to around 10 cm from each other. Don't put your fingers in the path of magnet attraction, because a significant injury may occur. Depending on how massive the neodymium magnets are, they can lead to a cut or a fracture.

Safety rules!

So you are aware of why neodymium magnets are so dangerous, see the article titled How very dangerous are very powerful neodymium magnets?.