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MW 10x2 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010006

GTIN/EAN: 5906301810056

5.00

Diameter Ø

10 mm [±0,1 mm]

Height

2 mm [±0,1 mm]

Weight

1.18 g

Magnetization Direction

↑ axial

Load capacity

1.27 kg / 12.50 N

Magnetic Induction

230.11 mT / 2301 Gs

Coating

[NiCuNi] Nickel

check parameters »

0.467 ZŁ with VAT / pcs + price for transport

0.380 ZŁ net + 23% VAT / pcs

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Strength and shape of a neodymium magnet can be tested on our magnetic mass calculator.

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Detailed specification - MW 10x2 / N38 - cylindrical magnet

Specification / characteristics - MW 10x2 / N38 - cylindrical magnet

properties
properties values
Cat. no. 010006
GTIN/EAN 5906301810056
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 2 mm [±0,1 mm]
Weight 1.18 g
Magnetization Direction ↑ axial
Load capacity ~ ? 1.27 kg / 12.50 N
Magnetic Induction ~ ? 230.11 mT / 2301 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 10x2 / 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 magnet - report

The following values are the result of a mathematical calculation. Values were calculated on algorithms for the material Nd2Fe14B. Actual conditions may differ from theoretical values. Please consider these calculations as a reference point when designing systems.

Table 1: Static force (force vs gap) - interaction chart
MW 10x2 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 2300 Gs
230.0 mT
 1.27 kg / 2.80 lbs
1270.0 g / 12.5 N
 safe
1 mm 1974 Gs
197.4 mT
 0.94 kg / 2.06 lbs
935.3 g / 9.2 N
 safe
2 mm 1570 Gs
157.0 mT
 0.59 kg / 1.31 lbs
592.1 g / 5.8 N
 safe
3 mm 1194 Gs
119.4 mT
 0.34 kg / 0.75 lbs
342.3 g / 3.4 N
 safe
5 mm 661 Gs
66.1 mT
 0.10 kg / 0.23 lbs
104.9 g / 1.0 N
 safe
10 mm 178 Gs
17.8 mT
 0.01 kg / 0.02 lbs
7.6 g / 0.1 N
 safe
15 mm 66 Gs
6.6 mT
 0.00 kg / 0.00 lbs
1.1 g / 0.0 N
 safe
20 mm 31 Gs
3.1 mT
 0.00 kg / 0.00 lbs
0.2 g / 0.0 N
 safe
30 mm 10 Gs
1.0 mT
 0.00 kg / 0.00 lbs
0.0 g / 0.0 N
 safe
50 mm 2 Gs
0.2 mT
 0.00 kg / 0.00 lbs
0.0 g / 0.0 N
 safe
Pulling power drops sharply per each millimeter of distance. Note that even a microscopic distance (e.g., contamination, paint, dust) significantly diminishes the holding power. Neodymiums hold most effectively during direct contact; gap weakens the power. See how rapidly the pull force fall, when the product does not touch directly to the steel surface. When calculating the mounting, discard additional spacers.

Table 2: Sliding hold (wall)
MW 10x2 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 0.25 kg / 0.56 lbs
254.0 g / 2.5 N
1 mm Stal (~0.2) 0.19 kg / 0.41 lbs
188.0 g / 1.8 N
2 mm Stal (~0.2) 0.12 kg / 0.26 lbs
118.0 g / 1.2 N
3 mm Stal (~0.2) 0.07 kg / 0.15 lbs
68.0 g / 0.7 N
5 mm Stal (~0.2) 0.02 kg / 0.04 lbs
20.0 g / 0.2 N
10 mm Stal (~0.2) 0.00 kg / 0.00 lbs
2.0 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
This section presents the estimated weight limit needed to initiate the slippage of the magnet vertically on a upright metal surface (assuming typical friction coefficient). The holding force is relative to the air gap between the magnet and the surface.

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces
MW 10x2 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
0.38 kg / 0.84 lbs
381.0 g / 3.7 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
0.25 kg / 0.56 lbs
254.0 g / 2.5 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.13 kg / 0.28 lbs
127.0 g / 1.2 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
0.64 kg / 1.40 lbs
635.0 g / 6.2 N
When mounting a element on a upright plane (e.g., a board), it will maintain only approx. 1/5 of its nominal power. Gravity as well as a low friction coefficient mean that magnets move down easier than they detach. Designing a wall mount? Remember that the shear force is much weaker than the maximum static pull force. On a painted metal, the magnet will give way down under a significantly smaller cargo. Utilizing a rubberized layer can effectively improve the result.

Table 4: Steel thickness (saturation) - power losses
MW 10x2 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
10%
 0.13 kg / 0.28 lbs
127.0 g / 1.2 N
1 mm
25%
 0.32 kg / 0.70 lbs
317.5 g / 3.1 N
2 mm
50%
 0.64 kg / 1.40 lbs
635.0 g / 6.2 N
3 mm
75%
 0.95 kg / 2.10 lbs
952.5 g / 9.3 N
5 mm
100%
 1.27 kg / 2.80 lbs
1270.0 g / 12.5 N
10 mm
100%
 1.27 kg / 2.80 lbs
1270.0 g / 12.5 N
11 mm
100%
 1.27 kg / 2.80 lbs
1270.0 g / 12.5 N
12 mm
100%
 1.27 kg / 2.80 lbs
1270.0 g / 12.5 N
A thin sheet cannot conduct the full magnetic flux, which wastes potential of the magnet. If you install a neodymium to a thin surface, the field will pass right through and the attraction force will be weaker. To utilize 100% of this neodymium's power, you require a sufficiently solid element of metal. The saturation phenomenon causes that on delicate walls (e.g., appliance housings), the magnet works worse. We advise picking the steel thickness based on the following data.

Table 5: Thermal resistance (stability) - thermal limit
MW 10x2 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 1.27 kg / 2.80 lbs
1270.0 g / 12.5 N
 OK
40 °C -2.2% 1.24 kg / 2.74 lbs
1242.1 g / 12.2 N
 OK
60 °C -4.4% 1.21 kg / 2.68 lbs
1214.1 g / 11.9 N
80 °C -6.6% 1.19 kg / 2.62 lbs
1186.2 g / 11.6 N
100 °C -28.8% 0.90 kg / 1.99 lbs
904.2 g / 8.9 N
Standard neodymium magnets irreversibly lose power above the temperature limit. Protect against heat – heat can irreversibly destroy this magnet. As the temperature rises, the neodymium's capacity momentarily decreases. Avoid using this magnet close to heaters exceeding its working range. Ignoring the limit will cause permanent loss of magnetic properties.
*Important note: Temperature resistance depends not only on the material grade, but also on the magnet's shape. Thin magnets (pancake types) may lose charge permanently at lower temperatures than taller cylinders. Warning indicator in the table signals permanent field degradation for this particular item.

Table 6: Two magnets (attraction) - field range
MW 10x2 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Shear Force (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 2.56 kg / 5.65 lbs
3 867 Gs
0.38 kg / 0.85 lbs
384 g / 3.8 N
 N/A
1 mm 2.25 kg / 4.96 lbs
4 312 Gs
0.34 kg / 0.74 lbs
338 g / 3.3 N
 2.03 kg / 4.46 lbs
~0 Gs
2 mm 1.89 kg / 4.16 lbs
3 948 Gs
0.28 kg / 0.62 lbs
283 g / 2.8 N
 1.70 kg / 3.74 lbs
~0 Gs
3 mm 1.52 kg / 3.36 lbs
3 548 Gs
0.23 kg / 0.50 lbs
229 g / 2.2 N
 1.37 kg / 3.02 lbs
~0 Gs
5 mm 0.92 kg / 2.02 lbs
2 750 Gs
0.14 kg / 0.30 lbs
137 g / 1.3 N
 0.82 kg / 1.82 lbs
~0 Gs
10 mm 0.21 kg / 0.47 lbs
1 322 Gs
0.03 kg / 0.07 lbs
32 g / 0.3 N
 0.19 kg / 0.42 lbs
~0 Gs
20 mm 0.02 kg / 0.03 lbs
355 Gs
0.00 kg / 0.01 lbs
2 g / 0.0 N
 0.01 kg / 0.03 lbs
~0 Gs
50 mm 0.00 kg / 0.00 lbs
33 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
20 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
13 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
9 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
6 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
5 Gs
0.00 kg / 0.00 lbs
0 g / 0.0 N
 0.00 kg / 0.00 lbs
~0 Gs
Two magnetic products interact from a significantly greater distance than a magnet and steel combination. The setup of magnet-to-magnet produces a massive flux and a further horizon of performance. Designing a solid fastener? Apply two magnets instead of a neodymium and a striker plate. Exercise caution that when attracting two neodymiums, the collision energy is huge. The repulsion force is marginally weaker than the connection force, but still large.
*Field value in repulsion mode drops to ~0 Gs in the exact middle between the magnets (resulting from vector opposition).
Important: Estimates demonstrate friction force of two identical neodymium magnets (friction coefficient ~0.15 for Ni-Ni coating).

Table 7: Protective zones (electronics) - precautionary measures
MW 10x2 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 4.0 cm
Hearing aid 10 Gs (1.0 mT) 3.5 cm
Timepiece 20 Gs (2.0 mT) 2.5 cm
Phone / Smartphone 40 Gs (4.0 mT) 2.0 cm
Car key 50 Gs (5.0 mT) 2.0 cm
Payment card 400 Gs (40.0 mT) 1.0 cm
HDD hard drive 600 Gs (60.0 mT) 1.0 cm
Extremely neodym field poses a real danger to IT equipment and pacemakers. These magnets produce a field that destroys function of digital equipment. Notice: the unseen radiation penetrates the body and plastic. Special caution must be exercised by people with cochlear implants and drug dispensers. The risk also applies to: automatic timepieces, remotes, speakers, and displays. Avoid contact with magnetic cards, hard drives, or sensitive navigation tools.

Table 8: Dynamics (kinetic energy) - warning
MW 10x2 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 33.21 km/h
(9.22 m/s)
 0.05 J
30 mm 57.31 km/h
(15.92 m/s)
 0.15 J
50 mm 73.98 km/h
(20.55 m/s)
 0.25 J
100 mm 104.63 km/h
(29.06 m/s)
 0.50 J
Neodymium magnets are delicate – a strong collision with metal risks their cracking. Pay attention to connection velocity – a neodymium left loose becomes dangerous. Kinetic force can trigger coating fragments or painful pinches to skin. Always hold the magnet during mounting so it doesn't hit violently against the metal. A contact at a velocity of dozens of km/h means shattering of the neodymium. Use safety goggles when playing with powerful specimens.

Table 9: Anti-corrosion coating durability
MW 10x2 / 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)
For outdoor applications, an epoxy coating is required; standard nickel is intended for indoor use. Moisture resistance is crucial for installations in bathrooms or outdoors.

Table 10: Construction data (Flux)
MW 10x2 / N38

Parameter Value SI Unit / Description
Magnetic Flux 2 097 Mx 21.0 µWb
Pc Coefficient 0.29 Low (Flat)
Flux value passing through the pole surface. Key data when building generators as well as sensors. Pc value defines the magnet's operating point.

Table 11: Physics of underwater searching
MW 10x2 / N38

Environment Effective steel pull Effect
Air (land) 1.27 kg Standard
Water (riverbed) 1.45 kg
(+0.18 kg buoyancy gain)
+14.5%
Warning: Standard nickel requires drying after every contact with moisture; lack of maintenance will lead to rust spots.
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. Shear force

*Caution: On a vertical wall, the magnet holds just a fraction of its nominal pull.

2. Steel saturation

*Thin metal sheet (e.g. computer case) severely weakens the holding force.

3. Thermal stability

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

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

chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.29

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 and environmental data
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: 010006-2026
Quick Unit Converter
Pulling force
Magnetic Field
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This product is an exceptionally strong rod magnet, composed of modern NdFeB material, which, at dimensions of Ø10x2 mm, guarantees maximum efficiency. This specific item is characterized by a tolerance of ±0.1mm and industrial build quality, making it an ideal solution for professional engineers and designers. As a magnetic rod with impressive force (approx. 1.27 kg), this product is in stock from our European logistics center, ensuring quick order fulfillment. Furthermore, its Ni-Cu-Ni coating secures it against corrosion in standard operating conditions, ensuring an aesthetic appearance and durability for years.
It successfully proves itself in DIY projects, advanced robotics, and broadly understood industry, serving as a positioning or actuating element. Thanks to the high power of 12.50 N with a weight of only 1.18 g, this rod is indispensable in electronics and wherever every gram matters.
Since our magnets have a tolerance of ±0.1mm, the best method is to glue them into holes with a slightly larger diameter (e.g., 10.1 mm) using epoxy glues. To ensure long-term durability in automation, anaerobic resins are used, which do not react with the nickel coating and fill the gap, guaranteeing high repeatability of the connection.
Magnets N38 are strong enough for 90% of applications in modeling and machine building, where excessive miniaturization with maximum force is not required. If you need even stronger magnets in the same volume (Ø10x2), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard in continuous sale in our store.
This model is characterized by dimensions Ø10x2 mm, which, at a weight of 1.18 g, makes it an element with impressive magnetic energy density. The value of 12.50 N means that the magnet is capable of holding a weight many times exceeding its own mass of 1.18 g. 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 2 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.

Advantages and disadvantages of rare earth magnets.

Advantages

In addition to their magnetic efficiency, neodymium magnets provide the following advantages:
  • They retain attractive force for nearly ten years – the drop is just ~1% (according to analyses),
  • They are extremely resistant to demagnetization induced by external field influence,
  • By using a lustrous layer of silver, the element gains an proper look,
  • They show high magnetic induction at the operating surface, which affects their effectiveness,
  • Thanks to resistance to high temperature, they are able to function (depending on the shape) even at temperatures up to 230°C and higher...
  • Thanks to versatility in forming and the ability to adapt to individual projects,
  • Universal use in future technologies – they are used in HDD drives, electromotive mechanisms, precision medical tools, and modern systems.
  • Thanks to concentrated force, small magnets offer high operating force, with minimal size,

Weaknesses

Characteristics of disadvantages of neodymium magnets: weaknesses and usage proposals
  • They are prone to damage upon too strong impacts. To avoid cracks, it is worth securing magnets using a steel holder. Such protection not only protects the magnet but also increases its resistance to damage
  • NdFeB magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop of power (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
  • Due to the susceptibility of magnets to corrosion in a humid environment, we advise using waterproof magnets made of rubber, plastic or other material resistant to moisture, in case of application outdoors
  • Limited ability of making nuts in the magnet and complex forms - recommended is cover - magnetic holder.
  • Health risk related to microscopic parts of magnets pose a threat, if swallowed, which is particularly important in the context of child health protection. Additionally, small components of these products are able to disrupt the diagnostic process medical when they are in the body.
  • High unit price – neodymium magnets cost more than other types of magnets (e.g. ferrite), which hinders application in large quantities

Lifting parameters

Highest magnetic holding force – what affects it?

Breakaway force was determined for the most favorable conditions, including:
  • using a base made of high-permeability steel, functioning as a circuit closing element
  • possessing a thickness of at least 10 mm to avoid saturation
  • with a plane cleaned and smooth
  • without any insulating layer between the magnet and steel
  • under vertical force vector (90-degree angle)
  • in neutral thermal conditions

Lifting capacity in real conditions – factors

Holding efficiency impacted by specific conditions, including (from most important):
  • Air gap (betwixt the magnet and the plate), since even a very small distance (e.g. 0.5 mm) results in a drastic drop in lifting capacity by up to 50% (this also applies to paint, rust or debris).
  • Angle of force application – highest force is reached only during pulling at a 90° angle. The resistance to sliding of the magnet along the surface is usually many times smaller (approx. 1/5 of the lifting capacity).
  • Metal thickness – the thinner the sheet, the weaker the hold. Part of the magnetic field penetrates through instead of converting into lifting capacity.
  • Steel grade – ideal substrate is high-permeability steel. Cast iron 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.
  • Temperature influence – high temperature weakens pulling force. Exceeding the limit temperature can permanently damage the magnet.

Holding force was tested on the plate surface of 20 mm thickness, when the force acted perpendicularly, however under shearing force the holding force is lower. Moreover, even a slight gap between the magnet’s surface and the plate reduces the load capacity.

H&S for magnets
Do not underestimate power

Handle magnets consciously. Their powerful strength can shock even professionals. Plan your moves and respect their power.

Magnetic media

Equipment safety: Neodymium magnets can ruin data carriers and delicate electronics (pacemakers, hearing aids, mechanical watches).

Do not overheat magnets

Keep cool. NdFeB magnets are susceptible to temperature. If you require operation above 80°C, look for special high-temperature series (H, SH, UH).

Magnets are brittle

Neodymium magnets are sintered ceramics, meaning they are prone to chipping. Collision of two magnets will cause them shattering into small pieces.

Combustion hazard

Combustion risk: Rare earth powder is highly flammable. Avoid machining magnets without safety gear as this risks ignition.

Choking Hazard

Product intended for adults. Tiny parts can be swallowed, causing serious injuries. Keep out of reach of children and animals.

Crushing force

Large magnets can crush fingers in a fraction of a second. Do not place your hand betwixt two strong magnets.

Life threat

Health Alert: Strong magnets can turn off heart devices and defibrillators. Stay away if you have electronic implants.

Precision electronics

Note: neodymium magnets produce a field that confuses sensitive sensors. Keep a separation from your phone, tablet, and GPS.

Allergic reactions

Certain individuals experience a sensitization to nickel, which is the typical protective layer for NdFeB magnets. Frequent touching might lead to an allergic reaction. We recommend wear protective gloves.

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