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MW 10x10 / N38 - cylindrical magnet

Name: Dhit sp. z o.o.
Address: Kościuszki 6A, Ożarów Mazowiecki, Poland, 05-850, PL
Telephone: +48 22 499 98 98
Price range: 1-6500
Rating: 5

cylindrical magnet

Catalog no 010004

GTIN/EAN: 5906301810032

5.00

Diameter Ø

10 mm [±0,1 mm]

Height

10 mm [±0,1 mm]

Weight

5.89 g

Magnetization Direction

↑ axial

Load capacity

3.18 kg / 31.15 N

Magnetic Induction

553.84 mT / 5538 Gs

Coating

[NiCuNi] Nickel

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4.31 ZŁ with VAT / pcs + price for transport

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Technical of the product - MW 10x10 / N38 - cylindrical magnet

Specification / characteristics - MW 10x10 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010004
GTIN/EAN	5906301810032
Production/Distribution	Dhit sp. z o.o. ul. Zielona 14 05-850 Ożarów Mazowiecki PL
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 ~ ?	3.18 kg / 31.15 N
Magnetic Induction ~ ?	553.84 mT / 5538 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 10x10 / N38 - cylindrical magnet

properties	values	units
remenance Br [min. - max.] ?	12.2-12.6	kGs
remenance Br [min. - max.] ?	1220-1260	mT
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 10^-6	°C^-1
Thermal expansion perpendicular (⊥) to orientation (M)	-(1-3) x 10^-6	°C^-1
Young's modulus	1.7 x 10⁴	kg/mm²

Physical modeling of the magnet - report

The following values represent the outcome of a physical analysis. Results were calculated on algorithms for the material Nd₂Fe₁₄B. Actual conditions might slightly deviate from the simulation results. Treat these calculations as a preliminary roadmap when designing systems.

Table 1: Static force (force vs gap) - characteristics
MW 10x10 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg)	Risk Status
0 mm	5534 Gs 553.4 mT	3.18 kg / 3180.0 g 31.2 N	medium risk
1 mm	4428 Gs 442.8 mT	2.04 kg / 2036.1 g 20.0 N	medium risk
2 mm	3420 Gs 342.0 mT	1.21 kg / 1214.8 g 11.9 N	weak grip
3 mm	2597 Gs 259.7 mT	0.70 kg / 700.2 g 6.9 N	weak grip
5 mm	1498 Gs 149.8 mT	0.23 kg / 232.9 g 2.3 N	weak grip
10 mm	469 Gs 46.9 mT	0.02 kg / 22.9 g 0.2 N	weak grip
15 mm	198 Gs 19.8 mT	0.00 kg / 4.1 g 0.0 N	weak grip
20 mm	101 Gs 10.1 mT	0.00 kg / 1.1 g 0.0 N	weak grip
30 mm	36 Gs 3.6 mT	0.00 kg / 0.1 g 0.0 N	weak grip
50 mm	9 Gs 0.9 mT	0.00 kg / 0.0 g 0.0 N	weak grip

Magnetic force weakens drastically with every subsequent millimeter of spacing. Remember that every additional insulation layer (e.g., contamination, paint, rust) significantly reduces the pull force. Magnetic products operate strongest during direct contact; gap nullifies the force. See how quickly the pull force plummet, when the product does not adhere flatly to the metal substrate. When calculating the assembly, discard additional spacers.

Table 2: Shear capacity (vertical surface)
MW 10x10 / N38

Distance (mm)	Friction coefficient	Pull Force (kg)
0 mm	Stal (~0.2)	0.64 kg / 636.0 g 6.2 N
1 mm	Stal (~0.2)	0.41 kg / 408.0 g 4.0 N
2 mm	Stal (~0.2)	0.24 kg / 242.0 g 2.4 N
3 mm	Stal (~0.2)	0.14 kg / 140.0 g 1.4 N
5 mm	Stal (~0.2)	0.05 kg / 46.0 g 0.5 N
10 mm	Stal (~0.2)	0.00 kg / 4.0 g 0.0 N
15 mm	Stal (~0.2)	0.00 kg / 0.0 g 0.0 N
20 mm	Stal (~0.2)	0.00 kg / 0.0 g 0.0 N
30 mm	Stal (~0.2)	0.00 kg / 0.0 g 0.0 N
50 mm	Stal (~0.2)	0.00 kg / 0.0 g 0.0 N

The following data indicates the estimated holding capacity required to start the sliding of the magnet down along a vertical steel wall (considering standard friction). This parameter is a function of the distance between the magnet and the metal.

Table 3: Wall mounting (shearing) - behavior on slippery surfaces
MW 10x10 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg)
Raw steel	µ = 0.3 30% Nominalnej Siły	0.95 kg / 954.0 g 9.4 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.64 kg / 636.0 g 6.2 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.32 kg / 318.0 g 3.1 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	1.59 kg / 1590.0 g 15.6 N

When hanging a holder on a vertical plane (e.g., a board), it you can count on only approx. 1/5 of its maximum pull force. Gravitational force and a low friction coefficient mean that magnets slip faster than they pull off. Designing a vertical fastening? Note that the sliding force is noticeably lower than the perpendicular breakaway force. On a slippery surface, the holder will slide down under a much lighter cargo. Application of an anti-slip pad can significantly increase the grip.

Table 4: Steel thickness (saturation) - sheet metal selection
MW 10x10 / N38

Steel thickness (mm)	% power	Real pull force (kg)
0.5 mm	10%	0.32 kg / 318.0 g 3.1 N
1 mm	25%	0.80 kg / 795.0 g 7.8 N
2 mm	50%	1.59 kg / 1590.0 g 15.6 N
5 mm	100%	3.18 kg / 3180.0 g 31.2 N
10 mm	100%	3.18 kg / 3180.0 g 31.2 N

A too thin steel is unable to absorb the full magnetic flux, which wastes potential of the holder. Should you install a neodymium to a too thin substrate, the magnetism will penetrate right through and the pull force will drop sharply. To achieve 100% of this neodymium's potential, you need a suitably thick piece of steel. The saturation effect causes that on sheet metal structures (e.g., thin profiles), the product shows lower pull force. We suggest choosing the steel dimension from these parameters.

Table 5: Working in heat (stability) - resistance threshold
MW 10x10 / N38

Ambient temp. (°C)	Power loss	Remaining pull	Status
20 °C	0.0%	3.18 kg / 3180.0 g 31.2 N	OK
40 °C	-2.2%	3.11 kg / 3110.0 g 30.5 N	OK
60 °C	-4.4%	3.04 kg / 3040.1 g 29.8 N	OK
80 °C	-6.6%	2.97 kg / 2970.1 g 29.1 N
100 °C	-28.8%	2.26 kg / 2264.2 g 22.2 N

Standard neodymium magnets irreversibly lose parameters above the temperature limit. Avoid high temperatures – heat can permanently destroy this product. As the temperature rises, the neodymium's power momentarily lowers. Avoid using this product in hot environments higher than its working range. Exceeding the critical threshold will cause irreversible degradation of magnetism.

*Technical advisory: Temperature resistance is determined by both grade, and the Permeance Coefficient Pc. Low-profile magnets (low permeance coefficient) risk losing magnetic properties under lower heat stress than taller cylinders. The danger warning in the table signals permanent field degradation for this particular item.

Table 6: Magnet-Magnet interaction (attraction) - forces in the system
MW 10x10 / N38

Gap (mm)	Attraction (kg) (N-S)	Repulsion (kg) (N-N)
0 mm	14.83 kg / 14830 g 145.5 N 6 003 Gs	N/A
1 mm	12.01 kg / 12012 g 117.8 N 9 962 Gs	10.81 kg / 10811 g 106.1 N ~0 Gs
2 mm	9.50 kg / 9495 g 93.1 N 8 857 Gs	8.55 kg / 8546 g 83.8 N ~0 Gs
3 mm	7.38 kg / 7381 g 72.4 N 7 809 Gs	6.64 kg / 6643 g 65.2 N ~0 Gs
5 mm	4.31 kg / 4311 g 42.3 N 5 968 Gs	3.88 kg / 3880 g 38.1 N ~0 Gs
10 mm	1.09 kg / 1086 g 10.7 N 2 996 Gs	0.98 kg / 978 g 9.6 N ~0 Gs
20 mm	0.11 kg / 107 g 1.0 N 939 Gs	0.10 kg / 96 g 0.9 N ~0 Gs
50 mm	0.00 kg / 2 g 0.0 N 116 Gs	0.00 kg / 0 g 0.0 N ~0 Gs

Two magnets attract each other from a wider radius than a magnet and steel setup. The connection of two magnets creates a more powerful interaction and a wider radius of action. Want to build a strong closure? Apply two magnets instead of one magnet and a striker plate. Remember that when bringing together two magnets, the impact force is huge. The repulsion force is marginally weaker than the connection force, but still impressive.
*The magnetic induction in repulsion mode drops to ~0 Gs at the geometric center between the magnets (due to field cancellation).

Table 7: Safety (HSE) (implants) - precautionary measures
MW 10x10 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	6.5 cm
Hearing aid	10 Gs (1.0 mT)	5.0 cm
Mechanical watch	20 Gs (2.0 mT)	4.0 cm
Mobile device	40 Gs (4.0 mT)	3.0 cm
Car key	50 Gs (5.0 mT)	3.0 cm
Payment card	400 Gs (40.0 mT)	1.5 cm
HDD hard drive	600 Gs (60.0 mT)	1.0 cm

A strong magnetic field is a large risk to IT equipment as well as medical implants. These neodymiums generate a field that destroys function of sensitive medical devices. Notice: the invisible magnetic field acts through matter and housings. Special caution must be exercised by people with hearing aids and insulin pumps. Also at risk are: automatic timepieces, remotes, speakers, and screens. Avoid contact with magnetic cards, HDD media, or precise measuring instruments.

Table 8: Impact energy (kinetic energy) - warning
MW 10x10 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	23.54 km/h (6.54 m/s)	0.13 J
30 mm	40.59 km/h (11.27 m/s)	0.37 J
50 mm	52.40 km/h (14.56 m/s)	0.62 J
100 mm	74.10 km/h (20.58 m/s)	1.25 J

NdFeB products are prone to chipping – a strong collision with metal risks their cracking. Control the attraction moment – a magnet released freely speeds with massive force. Kinetic force can cause material chips or injury to fingers. Be sure to control the product during installation so it doesn't hit violently against the metal. A collision at high speed means shattering of the magnet. Use safety goggles when working with large magnets.

Table 9: Anti-corrosion coating durability
MW 10x10 / N38

Technical parameter	Value / Description
Coating type	[NiCuNi] Nickel
Layer structure	Nickel - Copper - Nickel
Layer thickness	10-20 µm
Salt spray test (SST) ?	24 h
Recommended environment	Indoors only (dry)

The following table defines the conditions under which this product can be safely used. Note the thickness of the protective layer.

Table 10: Electrical data (P_c)
MW 10x10 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	4 481 Mx	44.8 µWb
P_c Coefficient	0.89	High (Stable)

Flux value passing through the pole surface. Key data in coil applications and motors. The P_c coefficient determines the magnet's operating point.

Table 11: Submerged application
MW 10x10 / N38

Environment	Effective steel pull	Effect
Air (land)	3.18 kg	Standard
Water (riverbed)	3.64 kg (+0.46 kg Buoyancy gain)	+14.5%

Warning: This magnet has a standard nickel coating. After use in water, it must be dried and maintained immediately, otherwise it will rust!

The magnetic field penetrates through water without any losses. However, remember the water resistance when pulling the rope quickly.

1. Vertical hold

*Caution: On a vertical wall, the magnet holds merely ~20% of its nominal pull.

2. Efficiency vs thickness

*Thin steel (e.g. 0.5mm PC case) significantly limits the holding force.

3. Thermal stability

*For N38 material, the critical limit is 80°C.

4. Demagnetization curve and operating point (B-H)

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 0.89

This simulation demonstrates the magnetic stability of the selected magnet under specific geometric conditions. The solid red line represents the demagnetization curve (material potential), while the dashed blue line is the load line based on the magnet's geometry. The P_c (Permeance Coefficient), also known as the load line slope, is a dimensionless value that describes the relationship between the magnet's shape and its magnetic stability. The intersection of these two lines (the black dot) is the operating point — it determines the actual magnetic flux density generated by the magnet in this specific configuration. A higher P_c value means the magnet is more 'slender' (tall relative to its area), resulting in a higher operating point and better resistance to irreversible demagnetization caused by external fields or temperature. A value of 0.42 is relatively low (typical for flat magnets), meaning the operating point is closer to the 'knee' of the curve — caution is advised when operating at temperatures near the maximum limit to avoid strength loss.

Technical specification and ecology

Chemical composition

iron (Fe)	64% – 68%
neodymium (Nd)	29% – 32%
boron (B)	1.1% – 1.2%
dysprosium (Dy)	0.5% – 2.0%
coating (Ni-Cu-Ni)	< 0.05%

Ecology and recycling (GPSR)

recyclability (EoL)	100%
recycled raw materials	~10% (pre-cons)
carbon footprint	low / zredukowany
waste code (EWC)	16 02 16

Safety card (GPSR)

responsible entity

Dhit sp. z o.o.

ul. Kościuszki 6A, 05-850 Ożarów Mazowiecki

tel: +48 22 499 98 98 | e-mail: bok@dhit.pl

batch number/type

id: 010004-2025

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This product is an incredibly powerful cylindrical magnet, composed of modern NdFeB material, which, with dimensions of Ø10x10 mm, guarantees the highest energy density. The MW 10x10 / N38 model boasts high dimensional repeatability and professional build quality, making it a perfect solution for the most demanding engineers and designers. As a cylindrical magnet with impressive force (approx. 3.18 kg), this product is in stock from our warehouse in Poland, ensuring quick order fulfillment. Moreover, its 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 electric motors, advanced sensors, and efficient filters, where field concentration on a small surface counts. Thanks to the high power of 31.15 N with a weight of only 5.89 g, this rod 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 high repeatability 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 (Ø10x10), 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 Ø10x10 mm, which, at a weight of 5.89 g, makes it an element with high magnetic energy density. The value of 31.15 N means that the magnet is capable of holding a weight many times exceeding its own mass of 5.89 g. The product has a [NiCuNi] coating, which secures it against external factors, giving it an aesthetic, silvery shine.

This rod magnet is magnetized axially (along the height of 10 mm), which means that the N and S poles are located on the flat, circular surfaces. 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 through the diameter if your project requires it.

Advantages and disadvantages of Nd₂Fe₁₄B magnets.

Pros

Besides their tremendous magnetic power, neodymium magnets offer the following advantages:

They retain attractive force for nearly ten years – the drop is just ~1% (based on simulations),
They are extremely resistant to demagnetization induced by presence of other magnetic fields,
The use of an refined finish of noble metals (nickel, gold, silver) causes the element to present itself better,
Magnetic induction on the surface of the magnet turns out to be extremely intense,
Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and are able to act (depending on the form) even at a temperature of 230°C or more...
Due to the possibility of flexible forming and customization to individualized requirements, neodymium magnets can be manufactured in a broad palette of forms and dimensions, which amplifies use scope,
Universal use in innovative solutions – they serve a role in computer drives, drive modules, medical equipment, as well as modern systems.
Relatively small size with high pulling force – neodymium magnets offer high power in small dimensions, which makes them useful in small systems

Weaknesses

Disadvantages of neodymium magnets:

To avoid cracks under impact, we suggest using special steel holders. Such a solution protects the magnet and simultaneously improves its durability.
When exposed to high temperature, neodymium magnets suffer a drop in strength. Often, when the temperature exceeds 80°C, their strength 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
When exposed to humidity, magnets start to rust. For applications outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which secure oxidation and corrosion.
Due to limitations in realizing threads and complicated shapes in magnets, we recommend using cover - magnetic mechanism.
Possible danger resulting from small fragments of magnets pose a threat, if swallowed, which is particularly important in the context of child safety. Additionally, small components of these devices can complicate diagnosis medical after entering the body.
Due to neodymium price, their price is relatively high,

Lifting parameters

Best holding force of the magnet in ideal parameters – what it depends on?

Breakaway force is the result of a measurement for the most favorable conditions, including:

with the use of a yoke made of low-carbon steel, ensuring full magnetic saturation
whose transverse dimension reaches at least 10 mm
with an polished touching surface
with zero gap (without paint)
during pulling in a direction vertical to the mounting surface
at room temperature

Practical aspects of lifting capacity – factors

It is worth knowing that the magnet holding may be lower depending on the following factors, starting with the most relevant:

Distance (betwixt the magnet and the plate), because even a microscopic distance (e.g. 0.5 mm) results in a drastic drop in lifting capacity by up to 50% (this also applies to varnish, corrosion or dirt).
Force direction – remember that the magnet has greatest strength perpendicularly. Under shear forces, the capacity drops significantly, often to levels of 20-30% of the nominal value.
Element thickness – for full efficiency, the steel must be sufficiently thick. Thin sheet restricts the attraction force (the magnet "punches through" it).
Steel grade – ideal substrate is high-permeability steel. Stainless steels may generate lower lifting capacity.
Surface quality – the more even the plate, the better the adhesion and stronger the hold. Roughness acts like micro-gaps.
Thermal factor – high temperature reduces magnetic field. Exceeding the limit temperature can permanently damage the magnet.

Holding force was tested on the plate surface of 20 mm thickness, when a perpendicular force was applied, however under parallel forces the lifting capacity is smaller. In addition, even a small distance between the magnet’s surface and the plate decreases the lifting capacity.

Warnings

Pacemakers

Warning for patients: Strong magnetic fields disrupt electronics. Keep at least 30 cm distance or ask another person to handle the magnets.

Threat to navigation

An intense magnetic field interferes with the operation of compasses in phones and navigation systems. Keep magnets near a smartphone to avoid breaking the sensors.

Avoid contact if allergic

A percentage of the population have a hypersensitivity to nickel, which is the common plating for NdFeB magnets. Extended handling can result in a rash. We strongly advise use safety gloves.

Thermal limits

Do not overheat. Neodymium magnets are susceptible to heat. If you need resistance above 80°C, inquire about HT versions (H, SH, UH).

Conscious usage

Before starting, read the rules. Sudden snapping can destroy the magnet or injure your hand. Be predictive.

Bodily injuries

Protect your hands. Two large magnets will snap together immediately with a force of several hundred kilograms, destroying anything in their path. Be careful!

Dust is flammable

Drilling and cutting of neodymium magnets carries a risk of fire hazard. Neodymium dust reacts violently with oxygen and is difficult to extinguish.

Material brittleness

Beware of splinters. Magnets can explode upon uncontrolled impact, ejecting sharp fragments into the air. Eye protection is mandatory.

Magnetic media

Avoid bringing magnets near a wallet, computer, or TV. The magnetism can irreversibly ruin these devices and erase data from cards.

Product not for children

Product intended for adults. Small elements can be swallowed, leading to intestinal necrosis. Keep away from children and animals.

Security! Need more info? Check our post: Why are neodymium magnets dangerous?

MW 10x10 / N38 - cylindrical magnet

Technical of the product - MW 10x10 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical modeling of the magnet - report

Table 1: Static force (force vs gap) - characteristics MW 10x10 / N38

Table 2: Shear capacity (vertical surface) MW 10x10 / N38

Table 3: Wall mounting (shearing) - behavior on slippery surfaces MW 10x10 / N38

Table 4: Steel thickness (saturation) - sheet metal selection MW 10x10 / N38

Table 5: Working in heat (stability) - resistance threshold MW 10x10 / N38

Table 6: Magnet-Magnet interaction (attraction) - forces in the system MW 10x10 / N38

Table 7: Safety (HSE) (implants) - precautionary measures MW 10x10 / N38

Table 8: Impact energy (kinetic energy) - warning MW 10x10 / N38

Table 9: Anti-corrosion coating durability MW 10x10 / N38

Table 10: Electrical data (Pc) MW 10x10 / N38

Table 11: Submerged application MW 10x10 / N38

1. Vertical hold

2. Efficiency vs thickness

3. Thermal stability

4. Demagnetization curve and operating point (B-H)

Chemical composition

Ecology and recycling (GPSR)

Pulling force

Magnetic Induction

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MPL 40x15x5 / N38 - lamellar magnet

Advantages and disadvantages of Nd2Fe14B magnets.

Pros

Weaknesses

Lifting parameters

Best holding force of the magnet in ideal parameters – what it depends on?

Practical aspects of lifting capacity – factors

Warnings

Pacemakers

Threat to navigation

Avoid contact if allergic

Thermal limits

Conscious usage

Bodily injuries

Dust is flammable

Material brittleness

Magnetic media

Product not for children

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (force vs gap) - characteristics
MW 10x10 / N38

Table 2: Shear capacity (vertical surface)
MW 10x10 / N38

Table 3: Wall mounting (shearing) - behavior on slippery surfaces
MW 10x10 / N38

Table 4: Steel thickness (saturation) - sheet metal selection
MW 10x10 / N38

Table 5: Working in heat (stability) - resistance threshold
MW 10x10 / N38

Table 6: Magnet-Magnet interaction (attraction) - forces in the system
MW 10x10 / N38

Table 7: Safety (HSE) (implants) - precautionary measures
MW 10x10 / N38

Table 8: Impact energy (kinetic energy) - warning
MW 10x10 / N38

Table 9: Anti-corrosion coating durability
MW 10x10 / N38

Table 10: Electrical data (P_c)
MW 10x10 / N38

Table 11: Submerged application
MW 10x10 / N38

Advantages and disadvantages of Nd₂Fe₁₄B magnets.