Product available Ships tomorrow

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

4.31 ZŁ with VAT / pcs + price for transport

3.50 ZŁ net + 23% VAT / pcs

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Product data 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 simulation of the product - data

The following values are the outcome of a physical calculation. Values are based on algorithms for the class Nd₂Fe₁₄B. Real-world performance might slightly deviate from the simulation results. Treat these data as a supplementary guide when designing systems.

Table 1: Static pull force (force vs distance) - 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	warning
1 mm	4428 Gs 442.8 mT	2.04 kg / 2036.1 g 20.0 N	warning
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 decreases sharply per each millimeter of gap. Keep in mind that even the smallest gap (e.g., contamination, paint, veneer) strongly reduces the pull force. Magnetic products hold strongest during direct contact; distance drastically cuts the force. See how flashily the parameters plummet, when the magnet does not adhere flatly to the metal substrate. When designing the arrangement, eliminate unnecessary gaps.

Table 2: Slippage hold (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

This section shows the approximate holding capacity necessary to initiate the shifting of the magnet down on a vertical steel wall (assuming standard friction coefficient). This value varies with the distance between the magnet and the surface.

Table 3: Wall mounting (sliding) - vertical pull
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 mounting a magnet on a upright plane (e.g., a fridge), it will maintain only about 20%-30% of its nominal power. Gravitational force as well as a weak degree of grip mean that holders slide down faster than they pull off. Designing a hanger? Remember that the sliding force is much weaker than the maximum static pull force. On a painted metal, the element will give way down under a noticeably lighter load. Using a rubber layer can significantly raise the stability.

Table 4: Steel thickness (substrate influence) - 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 take in the full magnetic flux, which wastes potential of the magnet. If you mount a strong magnet to a weak sheet, the field will pass right through and the pull force will drop sharply. To achieve the maximum of this magnet's power, you require a sufficiently solid piece of metal. The saturation phenomenon means that on delicate walls (e.g., appliance housings), the product holds weaker. We recommend selecting the steel thickness from these parameters.

Table 5: Working in heat (stability) - thermal limit
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

Ordinary NdFeB products lose strength above the temperature limit. Watch out for overheating – high temperature can irreversibly damage this magnet. As the temperature rises, the magnet's capacity temporarily decreases. Refrain from using this magnet in hot environments exceeding its safe range. Exceeding the critical threshold will result in irreversible degradation of magnetism.

*Important note: Temperature resistance is determined by both grade, but also on the magnet's shape. Low-profile magnets (low permeance coefficient) are more susceptible to demagnetization under lower heat stress than long magnets. The danger warning in the table signals permanent field degradation for this specific geometry.

Table 6: Magnet-Magnet interaction (attraction) - field collision
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 strong neodymiums attract each other from a wider radius than a magnet and steel combination. The connection of two magnets generates a stronger field and a further horizon of operation. Want to build a solid fastener? Apply two magnets instead of a neodymium and a steel. Remember that when connecting a pair of magnets, the collision energy is extreme. The levitation is marginally weaker than the connection force, but still significant.
*The magnetic induction in repulsion mode drops to ~0 Gs at the midpoint between the magnets (caused by magnetic field nullification).

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
Timepiece	20 Gs (2.0 mT)	4.0 cm
Phone / Smartphone	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 real danger to electronics as well as pacemakers. These magnets produce a flux that disrupts operation of digital equipment. Remember: the unseen radiation penetrates the body and housings. Special caution must be exercised by people with hearing aids and insulin pumps. Also at risk are: automatic timepieces, remotes, speakers, and displays. Do not place the magnet near cards, hard drives, or sensitive navigation tools.

Table 8: Collisions (kinetic energy) - collision effects
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

Magnetic elements are delicate – a strong collision with metal causes immediate chipping. Pay attention to connection velocity – a magnet released freely turns into a projectile. Impact energy can trigger coating fragments or painful pinches to skin. Always hold the magnet during bringing near metal so it doesn't slam with momentum against the steel surface. A contact at a velocity of dozens of km/h almost guarantees destruction of the magnet. Use safety goggles when handling with powerful specimens.

Table 9: Corrosion resistance
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 SST (salt spray test) is an industry standard for determining coating lifespan in harsh conditions. 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)

Total magnetic flux emitted by the pole surface. Essential parameter when building generators as well as sensors. P_c value defines the working geometry.

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%

Corrosion warning: Remember to wipe the magnet thoroughly after removing it from water and apply a protective layer (e.g., oil) to avoid corrosion.

In water, the magnet feels stronger thanks to Archimedes' principle. Note: for permanent underwater work, we recommend magnets with an anti-corrosive (epoxy) coating.

1. Vertical hold

*Note: On a vertical surface, the magnet retains just ~20% of its nominal pull.

2. Steel thickness impact

*Thin metal sheet (e.g. computer case) drastically reduces the holding force.

3. Heat tolerance

*For standard magnets, the max working temp 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.

Engineering data and GPSR

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%

Sustainability

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

Measurement Calculator

Force (pull)

Newtons (N)

lbs

Magnetic Induction

Gauss (Gs)

Input a figure in just one field to receive results for the other units right away.

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The offered product is a very strong cylindrical magnet, manufactured from modern NdFeB material, which, with dimensions of Ø10x10 mm, guarantees maximum efficiency. The MW 10x10 / N38 model is characterized by high dimensional repeatability and professional build quality, making it an excellent solution for the most demanding engineers and designers. As a magnetic rod with significant force (approx. 3.18 kg), this product is in stock from our European logistics center, ensuring lightning-fast order fulfillment. Moreover, its triple-layer Ni-Cu-Ni coating effectively protects it against corrosion in typical operating conditions, guaranteeing an aesthetic appearance and durability for years.

This model is perfect for building electric motors, advanced Hall effect sensors, and efficient magnetic separators, 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 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 professional component. To ensure long-term durability in industry, specialized industrial adhesives are used, which do not react with the nickel coating and fill the gap, guaranteeing durability of the connection.

Grade N38 is the most frequently chosen standard for industrial neodymium magnets, offering an optimal price-to-power ratio and operational stability. 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 available off-the-shelf in our store.

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 key parameter here is the holding force amounting to approximately 3.18 kg (force ~31.15 N), which, with such compact dimensions, proves the high power of the NdFeB material. The product has a [NiCuNi] coating, which secures it against external factors, 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 10 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.

Advantages as well as disadvantages of Nd₂Fe₁₄B magnets.

Pros

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

Their power is maintained, and after around ten years it drops only by ~1% (theoretically),
They are resistant to demagnetization induced by external field influence,
Thanks to the glossy finish, the coating of nickel, gold-plated, or silver gives an visually attractive appearance,
Neodymium magnets create maximum magnetic induction on a small surface, which allows for strong attraction,
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...
Possibility of precise modeling as well as adapting to defined conditions,
Fundamental importance in advanced technology sectors – they are used in magnetic memories, drive modules, medical devices, as well as multitasking production systems.
Compactness – despite small sizes they provide effective action, making them ideal for precision applications

Disadvantages

Disadvantages of neodymium magnets:

At strong impacts they can crack, therefore we recommend placing them in steel cases. A metal housing provides additional protection against damage and increases the magnet's durability.
We warn that neodymium magnets can lose their strength at high temperatures. To prevent this, we suggest our specialized [AH] magnets, which work effectively even at 230°C.
Magnets exposed to a humid environment can rust. Therefore when using outdoors, we suggest using waterproof magnets made of rubber, plastic or other material protecting against moisture
Due to limitations in creating nuts and complicated shapes in magnets, we propose using casing - magnetic holder.
Health risk resulting from small fragments 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 devices can complicate diagnosis medical when they are in the body.
Due to expensive raw materials, their price exceeds standard values,

Lifting parameters

Detachment force of the magnet in optimal conditions – what contributes to it?

The load parameter shown represents the limit force, recorded under ideal test conditions, namely:

on a block made of structural steel, effectively closing the magnetic flux
whose thickness reaches at least 10 mm
characterized by even structure
with total lack of distance (no paint)
for force acting at a right angle (in the magnet axis)
at standard ambient temperature

Practical aspects of lifting capacity – factors

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

Gap (between the magnet and the plate), since even a microscopic clearance (e.g. 0.5 mm) can cause a decrease in force by up to 50% (this also applies to varnish, corrosion or debris).
Loading method – declared lifting capacity refers to detachment vertically. When applying parallel force, the magnet exhibits significantly lower power (typically approx. 20-30% of maximum force).
Element thickness – to utilize 100% power, the steel must be adequately massive. Thin sheet restricts the attraction force (the magnet "punches through" it).
Steel grade – ideal substrate is pure iron steel. Stainless steels may have worse magnetic properties.
Plate texture – smooth surfaces ensure maximum contact, which increases force. Rough surfaces reduce efficiency.
Thermal conditions – neodymium magnets have a sensitivity to temperature. When it is hot they lose power, and in frost they can be stronger (up to a certain limit).

Lifting capacity was determined using a steel plate with a smooth surface of suitable thickness (min. 20 mm), under vertically applied force, whereas under parallel forces the load capacity is reduced by as much as 5 times. Additionally, even a small distance between the magnet’s surface and the plate decreases the lifting capacity.

H&S for magnets

Fragile material

Beware of splinters. Magnets can explode upon uncontrolled impact, launching shards into the air. Eye protection is mandatory.

Demagnetization risk

Monitor thermal conditions. Exposing the magnet to high heat will ruin its magnetic structure and strength.

Do not drill into magnets

Combustion risk: Rare earth powder is explosive. Avoid machining magnets in home conditions as this risks ignition.

GPS and phone interference

A strong magnetic field negatively affects the functioning of compasses in phones and GPS navigation. Maintain magnets close to a device to prevent damaging the sensors.

Skin irritation risks

Some people experience a contact allergy to Ni, which is the common plating for neodymium magnets. Extended handling might lead to skin redness. We suggest wear protective gloves.

Handling rules

Handle with care. Neodymium magnets attract from a distance and connect with huge force, often quicker than you can react.

Warning for heart patients

Medical warning: Strong magnets can turn off pacemakers and defibrillators. Stay away if you have electronic implants.

Product not for children

Always store magnets away from children. Risk of swallowing is significant, and the consequences of magnets clamping inside the body are life-threatening.

Serious injuries

Risk of injury: The pulling power is so great that it can result in hematomas, crushing, and broken bones. Protective gloves are recommended.

Magnetic media

Data protection: Strong magnets can ruin data carriers and sensitive devices (pacemakers, hearing aids, timepieces).

Safety First! Want to know more? Read our article: Are neodymium magnets dangerous?

MW 10x10 / N38 - cylindrical magnet

Product data MW 10x10 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical simulation of the product - data

1. Vertical hold

2. Steel thickness impact

3. Heat tolerance

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

Chemical composition

Sustainability

Force (pull)

Magnetic Induction

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UMC 20x6/3x7 / N38 - cylindrical magnetic holder

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SM 32x350 [2xM8] / N42 - magnetic separator

Advantages as well as disadvantages of Nd2Fe14B magnets.

Pros

Disadvantages

Lifting parameters

Detachment force of the magnet in optimal conditions – what contributes to it?

Practical aspects of lifting capacity – factors

Fragile material

Demagnetization risk

Do not drill into magnets

GPS and phone interference

Skin irritation risks

Handling rules

Warning for heart patients

Product not for children

Serious injuries

Magnetic media

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Advantages as well as disadvantages of Nd₂Fe₁₄B magnets.