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MW 10x10 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010004

GTIN: 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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MW 10x10 / N38 - cylindrical magnet

Specification / characteristics MW 10x10 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010004
GTIN	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	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

Technical simulation of the product - technical parameters

The following information constitute the outcome of a engineering analysis. Results were calculated on models for the class Nd₂Fe₁₄B. Real-world parameters may differ. Please consider these calculations as a supplementary guide for designers.

Table 1: Static pull force (pull 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	strong
1 mm	4428 Gs 442.8 mT	2.04 kg / 2036.1 g 20.0 N	strong
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 drops drastically with every subsequent millimeter of distance. Keep in mind that every additional insulation layer (e.g., dirt, paint, dust) significantly reduces the pull force. Magnetic products operate most effectively in perfect adhesion; air break nullifies the force. Observe how quickly the parameters drop, when the product does not adhere directly to the steel surface. When calculating the arrangement, discard additional spacers.

Table 2: Sliding 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 approximate holding capacity required to cause the downward movement of the magnet down along a upright steel wall (assuming standard friction coefficient). This value is relative to the gap size between the magnet and the metal.

Table 3: Wall mounting (sliding) - 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 mounting a magnet on a vertical wall (e.g., a board), it you can count on barely approx. 20%-30% of its maximum pull force. Gravitational force and a low friction coefficient influence the fact that holders slip faster than they detach. Planning a hanger? Remember that the sliding force is much weaker than the perpendicular breakaway force. On a painted metal, the element will slide down under a much lighter load. Application of an anti-slip layer can effectively raise the stability.

Table 4: Material efficiency (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 thin metal plate is incapable of absorb the entire magnetic field, which wastes potential of the holder. If you install a neodymium to a too thin substrate, the magnetism will penetrate right through and the attraction force will be weaker. To squeeze the maximum of this neodymium's potential, you require a sufficiently solid element of steel. The saturation phenomenon means that on thin elements (e.g., appliance housings), the holder works worse. We advise picking the steel dimension from these parameters.

Table 5: Thermal stability (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

Ordinary NdFeB products lose power above the temperature limit. Avoid high temperatures – high temperature can permanently demagnetize this magnet. With increasing heat, the magnet's power temporarily decreases. Avoid using this magnet close to ovens higher than its operating temperature limit. Too high temperature will lead to irreversible degradation of magnetism.

*Technical advisory: Temperature resistance is determined by both grade, as well as the dimension ratios. Low-profile magnets (low permeance coefficient) risk losing magnetic properties at lower temperatures than long magnets. Red status in the table signals a risk of irreversible loss for this specific geometry.

Table 6: Magnet-Magnet interaction (attraction) - field range
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 significantly greater distance than a neodymium and metal combination. The connection of two magnets creates a more powerful interaction and a wider radius of operation. Designing a solid fastener? Apply two magnets instead of one magnet and a striker plate. Be careful that when bringing together two magnets, the pinch force is huge. The levitation is marginally weaker than the connection force, but still large.
*The magnetic induction in repulsion mode reaches ~0 Gs at the midpoint of the gap (due to field cancellation).

Table 7: Hazards (electronics) - warnings
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 poses a large risk to IT equipment and medical implants. These neodymiums generate a field that destroys function of sensitive medical devices. Be aware: the invisible magnetic field passes through tissues and glass. Special caution must be taken by people with hearing aids and insulin pumps. Also at risk are: automatic timepieces, car keys, membranes, and screens. Do not bring the product near payment cards, hard drives, or sensitive navigation tools.

Table 8: Collisions (cracking risk) - 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 very brittle – a collision with steel risks their cracking. Control the attraction moment – a magnet released freely becomes dangerous. Kinetic force can trigger coating fragments or injury to skin. Be sure to control the product during installation so it doesn't slam with momentum against the steel surface. A contact at a velocity of dozens of km/h means shattering of the neodymium. Wear safety glasses when playing with large magnets.

Table 9: Surface protection spec
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)

Neodymium magnets are highly susceptible to corrosion without proper protection. Note the thickness of the protective layer.

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

Parameter	Value	Jedn. SI / Opis
Strumień (Flux)	4 481 Mx	44.8 µWb
Współczynnik Pc	0.89	Wysoki (Stabilny)

Flux value flowing through the magnet pole. Essential parameter for motor design and Hall effect devices. Permeance Coefficient determines the magnet operating point.

Table 11: Underwater work (magnet fishing)
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%

Rust risk: 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. However, remember the water resistance when pulling the rope quickly.

1. Sliding resistance

*Note: On a vertical surface, the magnet retains just approx. 20-30% of its max power.

2. Efficiency vs thickness

*Thin steel (e.g. computer case) significantly limits the holding force.

3. Temperature resistance

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

Quick Unit Converter

Magnet Pull Force

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Induction (Gs)

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MP 20x5x27 / N38 - ring magnet

33.00 ZŁ brutto / pcs

The offered product is an extremely powerful rod magnet, manufactured from durable NdFeB material, which, with dimensions of Ø10x10 mm, guarantees the highest energy density. The MW 10x10 / N38 component is characterized by a tolerance of ±0.1mm and professional build quality, making it a perfect solution for professional engineers and designers. As a cylindrical magnet with significant force (approx. 3.18 kg), this product is available off-the-shelf from our European logistics center, ensuring rapid order fulfillment. Moreover, its triple-layer Ni-Cu-Ni coating secures it against corrosion in typical operating conditions, ensuring an aesthetic appearance and durability for years.

This model is created for building electric motors, advanced sensors, and efficient filters, where maximum induction 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 delicate structure of the ceramic sinter, you must not use force-fitting (so-called press-fit), as this risks chipping the coating of this precision component. To ensure long-term durability in industry, anaerobic resins are used, which do not react with the nickel coating and fill the gap, guaranteeing high repeatability of the connection.

Grade N38 is the most frequently chosen standard for professional neodymium magnets, offering a great economic balance and high resistance to demagnetization. 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 impressive 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 grade of the NdFeB material. The product has a [NiCuNi] coating, which protects the surface 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. 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.

Strengths and weaknesses of neodymium magnets.

Benefits

Besides their magnetic performance, neodymium magnets are valued for these benefits:

They have stable power, and over around 10 years their performance decreases symbolically – ~1% (in testing),
They are resistant to demagnetization induced by external field influence,
The use of an shiny finish of noble metals (nickel, gold, silver) causes the element to have aesthetics,
Magnets are distinguished by maximum magnetic induction on the active area,
Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their form) at temperatures up to 230°C and above...
Thanks to versatility in designing and the capacity to adapt to complex applications,
Fundamental importance in high-tech industry – they serve a role in magnetic memories, brushless drives, precision medical tools, and other advanced devices.
Compactness – despite small sizes they provide effective action, making them ideal for precision applications

Cons

Drawbacks and weaknesses of neodymium magnets: tips and applications.

Brittleness is one of their disadvantages. Upon strong impact they can fracture. We advise keeping them in a special holder, which not only protects them against impacts but also increases their durability
NdFeB magnets lose force when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of strength (a factor is the shape and dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are extremely resistant to heat
When exposed to humidity, magnets usually rust. For applications outside, it is recommended to use protective magnets, such as those in rubber or plastics, which secure oxidation as well as corrosion.
We recommend casing - magnetic holder, due to difficulties in realizing threads inside the magnet and complicated forms.
Health risk resulting from small fragments of magnets can be dangerous, when accidentally swallowed, which gains importance in the aspect of protecting the youngest. Additionally, tiny parts of these products can complicate diagnosis medical when they are in the body.
Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications

Pull force analysis

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

The specified lifting capacity represents the limit force, obtained under laboratory conditions, namely:

using a plate made of high-permeability steel, functioning as a circuit closing element
with a cross-section no less than 10 mm
characterized by even structure
under conditions of ideal adhesion (metal-to-metal)
during detachment in a direction vertical to the mounting surface
in neutral thermal conditions

Determinants of practical lifting force of a magnet

Real force is affected by working environment parameters, mainly (from priority):

Gap (betwixt the magnet and the metal), as even a tiny clearance (e.g. 0.5 mm) can cause a reduction in force by up to 50% (this also applies to varnish, rust or dirt).
Loading method – catalog parameter refers to detachment vertically. When slipping, the magnet holds significantly lower power (often approx. 20-30% of maximum force).
Substrate thickness – for full efficiency, the steel must be sufficiently thick. Paper-thin metal restricts the lifting capacity (the magnet "punches through" it).
Material type – ideal substrate is high-permeability steel. Hardened steels may have worse magnetic properties.
Base smoothness – the smoother and more polished the surface, the larger the contact zone and higher the lifting capacity. Unevenness acts like micro-gaps.
Thermal environment – temperature increase results in weakening of induction. It is worth remembering the maximum operating temperature for a given model.

Lifting capacity was determined with the use of a smooth steel plate of optimal thickness (min. 20 mm), under vertically applied force, in contrast under attempts to slide the magnet the load capacity is reduced by as much as 75%. Moreover, even a minimal clearance between the magnet and the plate decreases the lifting capacity.

Precautions when working with NdFeB magnets

Do not underestimate power

Before use, check safety instructions. Sudden snapping can break the magnet or injure your hand. Be predictive.

ICD Warning

Patients with a ICD must maintain an absolute distance from magnets. The magnetic field can interfere with the operation of the life-saving device.

Dust is flammable

Fire warning: Neodymium dust is explosive. Avoid machining magnets in home conditions as this may cause fire.

Operating temperature

Watch the temperature. Exposing the magnet to high heat will ruin its magnetic structure and strength.

Serious injuries

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

No play value

Adult use only. Tiny parts pose a choking risk, leading to intestinal necrosis. Store away from children and animals.

Risk of cracking

Neodymium magnets are sintered ceramics, which means they are prone to chipping. Collision of two magnets leads to them shattering into small pieces.

GPS Danger

Be aware: neodymium magnets generate a field that confuses precision electronics. Keep a separation from your phone, device, and navigation systems.

Keep away from computers

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

Nickel coating and allergies

It is widely known that the nickel plating (the usual finish) is a potent allergen. If you have an allergy, avoid direct skin contact or select versions in plastic housing.

Danger! Details about risks in the article: Magnet Safety Guide.

MW 10x10 / N38 - cylindrical magnet

Not sure about your choice?

MW 10x10 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Technical simulation of the product - technical parameters

1. Sliding resistance

2. Efficiency vs thickness

3. Temperature resistance

Magnet Pull Force

Magnetic Induction

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Strengths and weaknesses of neodymium magnets.

Benefits

Cons

Pull force analysis

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

Determinants of practical lifting force of a magnet

Do not underestimate power

ICD Warning

Dust is flammable

Operating temperature

Serious injuries

No play value

Risk of cracking

GPS Danger

Keep away from computers

Nickel coating and allergies

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C