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MW 10x10 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010004

GTIN/EAN: 5906301810032

5.00
Load capacity 3.18 kg / 31.19 N Magnetic Induction 553.84 mT / 5538 Gs
Diameter Ø
10 mm [±0,1 mm]
Height
10 mm [±0,1 mm]
Weight
5.89 g
Magnetization Direction
↑ axial
Coating
[NiCuNi] Nickel
check technical specifications »

4.31 zł with VAT / pcs + price for transport

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Engineering report for this magnet

Full PDF analysis: pull and shear force, effect of distance, temperature and plate thickness, safety distances and the demagnetization curve.

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Parameters along with shape of a magnet can be analyzed using our force calculator.

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Technical - 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 / 31.19 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

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 - technical parameters

Presented information are the outcome of a mathematical analysis. Values were calculated on models for the class Nd2Fe14B. Real-world parameters may differ. Treat these calculations as a preliminary roadmap during assembly planning.

Table 1: Static pull force (pull vs gap) - interaction chart
MW 10x10 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 5534 Gs
553.4 mT
 3.18 kg / 7.01 LBS
3180.0 g / 31.2 N
 warning
1 mm 4428 Gs
442.8 mT
 2.04 kg / 4.49 LBS
2036.1 g / 20.0 N
 warning
2 mm 3420 Gs
342.0 mT
 1.21 kg / 2.68 LBS
1214.8 g / 11.9 N
 low risk
3 mm 2597 Gs
259.7 mT
 0.70 kg / 1.54 LBS
700.2 g / 6.9 N
 low risk
5 mm 1498 Gs
149.8 mT
 0.23 kg / 0.51 LBS
232.9 g / 2.3 N
 low risk
10 mm 469 Gs
46.9 mT
 0.02 kg / 0.05 LBS
22.9 g / 0.2 N
 low risk
15 mm 198 Gs
19.8 mT
 0.00 kg / 0.01 LBS
4.1 g / 0.0 N
 low risk
20 mm 101 Gs
10.1 mT
 0.00 kg / 0.00 LBS
1.1 g / 0.0 N
 low risk
30 mm 36 Gs
3.6 mT
 0.00 kg / 0.00 LBS
0.1 g / 0.0 N
 low risk
50 mm 9 Gs
0.9 mT
 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
 low risk
Magnetic force drops drastically with every mm of distance. Keep in mind that even a microscopic distance (e.g., contamination, varnish, veneer) significantly diminishes the holding power. Magnets work strongest during direct contact; air break kills the power. See how flashily the pull force drop, when the product does not touch tightly to the metal substrate. When planning the assembly, avoid additional spacers.

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

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 0.64 kg / 1.40 LBS
636.0 g / 6.2 N
1 mm Stal (~0.2) 0.41 kg / 0.90 LBS
408.0 g / 4.0 N
2 mm Stal (~0.2) 0.24 kg / 0.53 LBS
242.0 g / 2.4 N
3 mm Stal (~0.2) 0.14 kg / 0.31 LBS
140.0 g / 1.4 N
5 mm Stal (~0.2) 0.05 kg / 0.10 LBS
46.0 g / 0.5 N
10 mm Stal (~0.2) 0.00 kg / 0.01 LBS
4.0 g / 0.0 N
15 mm Stal (~0.2) 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
20 mm Stal (~0.2) 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
30 mm Stal (~0.2) 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
50 mm Stal (~0.2) 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
The table below shows the estimated shear load needed to cause the sliding of the magnet downwards on a vertical steel wall (assuming typical friction). The holding force varies with the gap size 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/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
0.95 kg / 2.10 LBS
954.0 g / 9.4 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
0.64 kg / 1.40 LBS
636.0 g / 6.2 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.32 kg / 0.70 LBS
318.0 g / 3.1 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
1.59 kg / 3.51 LBS
1590.0 g / 15.6 N
When hanging a holder on a vertical wall (e.g., a board), it will only hold only approx. 1/5 of its nominal power. Gravity and a weak degree of grip influence the fact that holders slide down faster than they pull off. Planning a vertical fastening? Remember that the shear force is noticeably lower than the maximum static pull force. On a smooth steel, the holder will slip down under a noticeably lighter load. Utilizing a rubberized coating can significantly improve the result.

Table 4: Material efficiency (saturation) - sheet metal selection
MW 10x10 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
10%
 0.32 kg / 0.70 LBS
318.0 g / 3.1 N
1 mm
25%
 0.80 kg / 1.75 LBS
795.0 g / 7.8 N
2 mm
50%
 1.59 kg / 3.51 LBS
1590.0 g / 15.6 N
3 mm
75%
 2.39 kg / 5.26 LBS
2385.0 g / 23.4 N
5 mm
100%
 3.18 kg / 7.01 LBS
3180.0 g / 31.2 N
10 mm
100%
 3.18 kg / 7.01 LBS
3180.0 g / 31.2 N
11 mm
100%
 3.18 kg / 7.01 LBS
3180.0 g / 31.2 N
12 mm
100%
 3.18 kg / 7.01 LBS
3180.0 g / 31.2 N
A thin metal plate is not enough to conduct the full magnetic flux, which wastes potential of the magnet. Should you install a neodymium to a weak sheet, the field will pass right through and the pull force will drop sharply. To squeeze the maximum of this neodymium's power, you need a suitably thick piece of steel. The saturation phenomenon causes that on thin elements (e.g., appliance housings), the product holds weaker. We advise picking the steel cross-section according to the table below.

Table 5: Thermal stability (material behavior) - power drop
MW 10x10 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 3.18 kg / 7.01 LBS
3180.0 g / 31.2 N
 OK
40 °C -2.2% 3.11 kg / 6.86 LBS
3110.0 g / 30.5 N
 OK
60 °C -4.4% 3.04 kg / 6.70 LBS
3040.1 g / 29.8 N
 OK
80 °C -6.6% 2.97 kg / 6.55 LBS
2970.1 g / 29.1 N
100 °C -28.8% 2.26 kg / 4.99 LBS
2264.2 g / 22.2 N
Ordinary NdFeB products change their properties strength above the temperature limit. Watch out for overheating – heat can permanently demagnetize this product. As the temperature rises, the neodymium's power temporarily drops. Do not use this product in hot environments higher than its working range. Too high temperature will cause destruction of magnetic properties.
*Important note: Temperature resistance depends not only on the material grade, but also on the magnet's shape. Thin magnets (low Pc) may lose charge permanently 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 (repulsion) - forces in the system
MW 10x10 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Lateral Force (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 14.83 kg / 32.69 LBS
6 003 Gs
2.22 kg / 4.90 LBS
2224 g / 21.8 N
 N/A
1 mm 12.01 kg / 26.48 LBS
9 962 Gs
1.80 kg / 3.97 LBS
1802 g / 17.7 N
 10.81 kg / 23.83 LBS
~0 Gs
2 mm 9.50 kg / 20.93 LBS
8 857 Gs
1.42 kg / 3.14 LBS
1424 g / 14.0 N
 8.55 kg / 18.84 LBS
~0 Gs
3 mm 7.38 kg / 16.27 LBS
7 809 Gs
1.11 kg / 2.44 LBS
1107 g / 10.9 N
 6.64 kg / 14.64 LBS
~0 Gs
5 mm 4.31 kg / 9.50 LBS
5 968 Gs
0.65 kg / 1.43 LBS
647 g / 6.3 N
 3.88 kg / 8.55 LBS
~0 Gs
10 mm 1.09 kg / 2.39 LBS
2 996 Gs
0.16 kg / 0.36 LBS
163 g / 1.6 N
 0.98 kg / 2.16 LBS
~0 Gs
20 mm 0.11 kg / 0.24 LBS
939 Gs
0.02 kg / 0.04 LBS
16 g / 0.2 N
 0.10 kg / 0.21 LBS
~0 Gs
50 mm 0.00 kg / 0.00 LBS
116 Gs
0.00 kg / 0.00 LBS
0 g / 0.0 N
 0.00 kg / 0.00 LBS
~0 Gs
60 mm 0.00 kg / 0.00 LBS
73 Gs
0.00 kg / 0.00 LBS
0 g / 0.0 N
 0.00 kg / 0.00 LBS
~0 Gs
70 mm 0.00 kg / 0.00 LBS
49 Gs
0.00 kg / 0.00 LBS
0 g / 0.0 N
 0.00 kg / 0.00 LBS
~0 Gs
80 mm 0.00 kg / 0.00 LBS
34 Gs
0.00 kg / 0.00 LBS
0 g / 0.0 N
 0.00 kg / 0.00 LBS
~0 Gs
90 mm 0.00 kg / 0.00 LBS
25 Gs
0.00 kg / 0.00 LBS
0 g / 0.0 N
 0.00 kg / 0.00 LBS
~0 Gs
100 mm 0.00 kg / 0.00 LBS
19 Gs
0.00 kg / 0.00 LBS
0 g / 0.0 N
 0.00 kg / 0.00 LBS
~0 Gs
Two strong neodymiums interact from a wider radius than a magnet and steel setup. The connection of two magnets produces a massive flux and a further horizon of action. Planning to create a strong closure? Use a pair of magnets instead of a neodymium and a steel. Remember that when connecting a pair of magnets, the pinch force is extreme. The repulsion force is marginally weaker than the connection force, but still impressive.
*Field value between like poles reaches ~0 Gs at the midpoint between the magnets (caused by magnetic field nullification).
Note: Results show sliding force of two matching magnets (friction ~0.15 for Ni-Ni plating).

Table 7: Protective zones (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
Mobile device 40 Gs (4.0 mT) 3.0 cm
Remote 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
Extremely neodym field poses a real danger to electronic devices as well as pacemakers. These magnets generate a field that disrupts operation of sensitive medical devices. Be aware: 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: mechanical watches, remotes, speakers, and displays. Avoid contact with magnetic cards, HDD media, or precise measuring instruments.

Table 8: Dynamics (kinetic energy) - collision effects
MW 10x10 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 16.62 km/h
(4.62 m/s)
 0.06 J
30 mm 16.70 km/h
(4.64 m/s)
 0.06 J
50 mm 16.71 km/h
(4.64 m/s)
 0.06 J
100 mm 16.71 km/h
(4.64 m/s)
 0.06 J
Magnetic elements are delicate – a collision with steel can result in shattering. Watch the impact speed – a magnet released freely becomes dangerous. Striking energy can trigger coating fragments or painful pinches to fingers. Always hold the magnet during installation so it doesn't slam with momentum against the steel surface. A collision at high speed ends with a crack of the neodymium. Use safety goggles when working 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 following table defines the conditions under which this product can be safely used. Note the thickness of the protective layer.

Table 10: Construction data (Flux)
MW 10x10 / N38

Parameter Value SI Unit / Description
Magnetic Flux 4 481 Mx 44.8 µWb
Pc Coefficient 0.89 High (Stable)
Total magnetic flux emitted by the magnet pole. Essential parameter in coil applications and motors. The Pc coefficient determines the working geometry.

Table 11: Hydrostatics and buoyancy
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: Standard nickel requires drying after every contact with moisture; lack of maintenance will lead to rust spots.
The magnetic field penetrates through water without any losses. Note: for permanent underwater work, we recommend magnets with an anti-corrosive (epoxy) coating.

1. Wall mount (shear)

*Note: On a vertical surface, the magnet retains merely a fraction of its perpendicular strength.

2. Plate thickness effect

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

3. Thermal stability

*For standard magnets, the safety limit is 80°C.

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

chart generated for the permeance coefficient Pc (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 Pc (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 Pc 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%

Environmental data

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: 010004-2026
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The offered product is an incredibly powerful cylinder magnet, composed of advanced NdFeB material, which, at dimensions of Ø10x10 mm, guarantees maximum efficiency. The MW 10x10 / N38 model boasts an accuracy of ±0.1mm and industrial 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 in stock from our warehouse in Poland, ensuring lightning-fast order fulfillment. Moreover, its triple-layer Ni-Cu-Ni coating secures it against corrosion in standard operating conditions, guaranteeing 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 31.19 N with a weight of only 5.89 g, this cylindrical magnet is indispensable in electronics and wherever low weight is crucial.
Since our magnets have a very precise dimensions, the recommended way is to glue them into holes with a slightly larger diameter (e.g., 10.1 mm) using two-component epoxy glues. To ensure stability in automation, anaerobic resins are used, which are safe for nickel and fill the gap, guaranteeing high repeatability of the connection.
Grade N38 is the most frequently chosen standard for industrial neodymium magnets, offering an optimal price-to-power ratio and high resistance to demagnetization. If you need even stronger 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.
The presented product is a neodymium magnet with precisely defined parameters: diameter 10 mm and height 10 mm. The value of 31.19 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 protects the surface against oxidation, 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. Such an arrangement is most desirable 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 through the diameter if your project requires it.

Advantages and disadvantages of rare earth magnets.

Strengths

Besides their magnetic performance, neodymium magnets are valued for these benefits:
  • They retain attractive force for nearly ten years – the drop is just ~1% (based on simulations),
  • They are resistant to demagnetization induced by presence of other magnetic fields,
  • The use of an elegant layer of noble metals (nickel, gold, silver) causes the element to be more visually attractive,
  • Magnets possess excellent magnetic induction on the surface,
  • Through (appropriate) combination of ingredients, they can achieve high thermal resistance, enabling action at temperatures approaching 230°C and above...
  • Thanks to modularity in designing and the ability to adapt to individual projects,
  • Universal use in future technologies – they serve a role in mass storage devices, motor assemblies, precision medical tools, as well as industrial machines.
  • Thanks to concentrated force, small magnets offer high operating force, with minimal size,

Cons

Disadvantages of NdFeB magnets:
  • To avoid cracks upon strong impacts, we suggest using special steel holders. Such a solution protects the magnet and simultaneously increases its durability.
  • Neodymium magnets lose their strength under the influence of heating. As soon as 80°C is exceeded, many of them start losing their force. Therefore, we recommend our special magnets marked [AH], which maintain durability even at temperatures up to 230°C
  • When exposed to humidity, magnets usually rust. For applications outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which secure oxidation and corrosion.
  • We suggest cover - magnetic holder, due to difficulties in realizing nuts inside the magnet and complex shapes.
  • Potential hazard related to microscopic parts of magnets can be dangerous, if swallowed, which becomes key in the aspect of protecting the youngest. It is also worth noting that small components of these magnets are able to be problematic in diagnostics 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

Maximum holding power of the magnet – what it depends on?

The load parameter shown represents the limit force, measured under laboratory conditions, meaning:
  • with the application of a sheet made of low-carbon steel, ensuring maximum field concentration
  • possessing a thickness of at least 10 mm to ensure full flux closure
  • with an polished contact surface
  • with zero gap (without coatings)
  • under perpendicular force vector (90-degree angle)
  • at conditions approx. 20°C

Lifting capacity in real conditions – factors

Real force is affected by working environment parameters, including (from priority):
  • Gap (between the magnet and the metal), as even a microscopic clearance (e.g. 0.5 mm) results in a drastic drop in lifting capacity by up to 50% (this also applies to paint, rust or dirt).
  • Loading method – catalog parameter refers to detachment vertically. When slipping, the magnet exhibits much less (typically approx. 20-30% of maximum force).
  • Wall thickness – thin material does not allow full use of the magnet. Magnetic flux penetrates through instead of generating force.
  • Metal type – not every steel reacts the same. Alloy additives weaken the attraction effect.
  • Surface finish – ideal contact is obtained only on smooth steel. Any scratches and bumps create air cushions, weakening the magnet.
  • Temperature influence – hot environment weakens pulling force. Exceeding the limit temperature can permanently damage the magnet.

Holding force was tested on a smooth steel plate of 20 mm thickness, when a perpendicular force was applied, whereas under shearing force the holding force is lower. In addition, even a small distance between the magnet’s surface and the plate decreases the lifting capacity.

Precautions when working with NdFeB magnets
Danger to pacemakers

Patients with a ICD should maintain an large gap from magnets. The magnetic field can stop the operation of the implant.

Warning for allergy sufferers

Allergy Notice: The Ni-Cu-Ni coating contains nickel. If an allergic reaction happens, immediately stop handling magnets and wear gloves.

Hand protection

Pinching hazard: The pulling power is so great that it can result in blood blisters, pinching, and even bone fractures. Protective gloves are recommended.

Handling rules

Exercise caution. Rare earth magnets attract from a distance and connect with huge force, often quicker than you can react.

Electronic hazard

Avoid bringing magnets close to a purse, laptop, or screen. The magnetic field can destroy these devices and erase data from cards.

Maximum temperature

Do not overheat. NdFeB magnets are susceptible to heat. If you need operation above 80°C, look for HT versions (H, SH, UH).

Choking Hazard

Strictly keep magnets out of reach of children. Risk of swallowing is significant, and the effects of magnets clamping inside the body are tragic.

Eye protection

Watch out for shards. Magnets can explode upon violent connection, ejecting shards into the air. We recommend safety glasses.

Magnetic interference

A powerful magnetic field negatively affects the operation of compasses in smartphones and navigation systems. Keep magnets near a device to avoid breaking the sensors.

Fire risk

Fire hazard: Rare earth powder is highly flammable. Avoid machining magnets in home conditions as this risks ignition.

Warning! More info about risks in the article: Safety of working with magnets.