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MW 10x5 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010011

GTIN/EAN: 5906301810100

5.00
Load capacity 3.19 kg / 31.28 N Magnetic Induction 437.91 mT / 4379 Gs
Diameter Ø
10 mm [±0,1 mm]
Height
5 mm [±0,1 mm]
Weight
2.95 g
Magnetization Direction
↑ axial
Coating
[NiCuNi] Nickel

How we measure these parameters — certificates and measurements

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Frequently asked questions

What is the maximum working temperature of a disc magnet?
Standard N-series grades work up to 80 °C. Grades N50, N52 and N54 have a lower limit of 60 °C, because coercivity falls as BHmax rises. Higher temperatures require the H (120 °C), SH (150 °C), UH (180 °C), EH (200 °C) or AH (230 °C) series. Within the working range the magnet loses about 0.11% of its induction per degree, and that loss is reversible.
What is the difference between N38, N42 and N52?
The number after N is the energy product BHmax. Moving from N38 to N52 raises it by several tens of percent, but the real holding force increases by roughly 20%, because force also depends on geometry and on the magnetic circuit. N52 costs about twice as much as N42, so for most mounting work N38–N42 is the best price-to-force ratio.
What is the dimensional tolerance?
±0.1 mm as standard, ±0.05 mm to order. The tolerance is stated next to the dimensions on every product page.

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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Call us now +48 888 99 98 98 alternatively let us know using contact form the contact section.
Specifications and structure of a neodymium magnet can be estimated using our power calculator.

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Technical specification - MW 10x5 / N38 - cylindrical magnet

Specification / characteristics - MW 10x5 / N38 - cylindrical magnet

properties
properties values
Cat. no. 010011
GTIN/EAN 5906301810100
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 5 mm [±0,1 mm]
Weight 2.95 g
Magnetization Direction ↑ axial
Load capacity ~ ? 3.19 kg / 31.28 N
Magnetic Induction ~ ? 437.91 mT / 4379 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 10x5 / N38 - cylindrical magnet
properties values units
Remanence Br ? 12.2-12.6 kGs
Remanence Br ? 1220-1260 mT
Coercivity bHc ? 10.8-11.5 kOe
Coercivity bHc ? 860-915 kA/m
Intrinsic coercivity iHc ≥ 12 kOe
Intrinsic coercivity iHc ≥ 955 kA/m
Energy product BHmax ? 36-38 BH max MGOe
Energy product BHmax ? 287-303 BH max KJ/m
Maximum working 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 310 °C
Curie Temperature TF 590 °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 - report

The following information are the outcome of a engineering simulation. Results are based on algorithms for the class Nd2Fe14B. Real-world conditions might slightly deviate from the simulation results. Treat these calculations as a preliminary roadmap for designers.

Table 1: Static force (pull vs gap) - power drop
MW 10x5 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 4376 Gs
437.6 mT
3.19 kg / 7.03 LBS
3190.0 g / 31.3 N
strong
1 mm 3547 Gs
354.7 mT
2.10 kg / 4.62 LBS
2095.9 g / 20.6 N
strong
2 mm 2743 Gs
274.3 mT
1.25 kg / 2.76 LBS
1252.9 g / 12.3 N
low risk
3 mm 2068 Gs
206.8 mT
0.71 kg / 1.57 LBS
712.2 g / 7.0 N
low risk
5 mm 1161 Gs
116.1 mT
0.22 kg / 0.50 LBS
224.7 g / 2.2 N
low risk
10 mm 336 Gs
33.6 mT
0.02 kg / 0.04 LBS
18.8 g / 0.2 N
low risk
15 mm 133 Gs
13.3 mT
0.00 kg / 0.01 LBS
2.9 g / 0.0 N
low risk
20 mm 65 Gs
6.5 mT
0.00 kg / 0.00 LBS
0.7 g / 0.0 N
low risk
30 mm 22 Gs
2.2 mT
0.00 kg / 0.00 LBS
0.1 g / 0.0 N
low risk
50 mm 5 Gs
0.5 mT
0.00 kg / 0.00 LBS
0.0 g / 0.0 N
low risk

Table 2: Sliding capacity (wall)
MW 10x5 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 0.64 kg / 1.41 LBS
638.0 g / 6.3 N
1 mm Stal (~0.2) 0.42 kg / 0.93 LBS
420.0 g / 4.1 N
2 mm Stal (~0.2) 0.25 kg / 0.55 LBS
250.0 g / 2.5 N
3 mm Stal (~0.2) 0.14 kg / 0.31 LBS
142.0 g / 1.4 N
5 mm Stal (~0.2) 0.04 kg / 0.10 LBS
44.0 g / 0.4 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

Table 3: Vertical assembly (sliding) - vertical pull
MW 10x5 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
0.96 kg / 2.11 LBS
957.0 g / 9.4 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
0.64 kg / 1.41 LBS
638.0 g / 6.3 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.32 kg / 0.70 LBS
319.0 g / 3.1 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
1.60 kg / 3.52 LBS
1595.0 g / 15.6 N

Table 4: Steel thickness (saturation) - sheet metal selection
MW 10x5 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
10%
0.32 kg / 0.70 LBS
319.0 g / 3.1 N
1 mm
25%
0.80 kg / 1.76 LBS
797.5 g / 7.8 N
2 mm
50%
1.60 kg / 3.52 LBS
1595.0 g / 15.6 N
3 mm
75%
2.39 kg / 5.27 LBS
2392.5 g / 23.5 N
5 mm
100%
3.19 kg / 7.03 LBS
3190.0 g / 31.3 N
10 mm
100%
3.19 kg / 7.03 LBS
3190.0 g / 31.3 N
11 mm
100%
3.19 kg / 7.03 LBS
3190.0 g / 31.3 N
12 mm
100%
3.19 kg / 7.03 LBS
3190.0 g / 31.3 N

Table 5: Thermal resistance (material behavior) - thermal limit
MW 10x5 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 3.19 kg / 7.03 LBS
3190.0 g / 31.3 N
OK
40 °C -2.2% 3.12 kg / 6.88 LBS
3119.8 g / 30.6 N
OK
60 °C -4.4% 3.05 kg / 6.72 LBS
3049.6 g / 29.9 N
80 °C -6.6% 2.98 kg / 6.57 LBS
2979.5 g / 29.2 N
100 °C -28.8% 2.27 kg / 5.01 LBS
2271.3 g / 22.3 N

Table 6: Two magnets (attraction) - forces in the system
MW 10x5 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Shear Strength (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 9.27 kg / 20.44 LBS
5 534 Gs
1.39 kg / 3.07 LBS
1391 g / 13.6 N
N/A
1 mm 7.63 kg / 16.83 LBS
7 941 Gs
1.15 kg / 2.52 LBS
1145 g / 11.2 N
6.87 kg / 15.15 LBS
~0 Gs
2 mm 6.09 kg / 13.43 LBS
7 094 Gs
0.91 kg / 2.01 LBS
914 g / 9.0 N
5.48 kg / 12.09 LBS
~0 Gs
3 mm 4.75 kg / 10.48 LBS
6 265 Gs
0.71 kg / 1.57 LBS
713 g / 7.0 N
4.28 kg / 9.43 LBS
~0 Gs
5 mm 2.76 kg / 6.08 LBS
4 772 Gs
0.41 kg / 0.91 LBS
413 g / 4.1 N
2.48 kg / 5.47 LBS
~0 Gs
10 mm 0.65 kg / 1.44 LBS
2 323 Gs
0.10 kg / 0.22 LBS
98 g / 1.0 N
0.59 kg / 1.30 LBS
~0 Gs
20 mm 0.05 kg / 0.12 LBS
673 Gs
0.01 kg / 0.02 LBS
8 g / 0.1 N
0.05 kg / 0.11 LBS
~0 Gs
50 mm 0.00 kg / 0.00 LBS
72 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
44 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
29 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
20 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
14 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
11 Gs
0.00 kg / 0.00 LBS
0 g / 0.0 N
0.00 kg / 0.00 LBS
~0 Gs

Table 7: Hazards (electronics) - warnings
MW 10x5 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 5.5 cm
Hearing aid 10 Gs (1.0 mT) 4.0 cm
Mechanical watch 20 Gs (2.0 mT) 3.5 cm
Mobile device 40 Gs (4.0 mT) 2.5 cm
Remote 50 Gs (5.0 mT) 2.5 cm
Payment card 400 Gs (40.0 mT) 1.0 cm
HDD hard drive 600 Gs (60.0 mT) 1.0 cm

Table 8: Dynamics (kinetic energy) - collision effects
MW 10x5 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 23.63 km/h
(6.56 m/s)
0.06 J
30 mm 23.73 km/h
(6.59 m/s)
0.06 J
50 mm 23.73 km/h
(6.59 m/s)
0.06 J
100 mm 23.73 km/h
(6.59 m/s)
0.06 J

Table 9: Anti-corrosion coating durability
MW 10x5 / 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)

Table 10: Electrical data (Pc)
MW 10x5 / N38

Parameter Value SI Unit / Description
Magnetic Flux 3 489 Mx 34.9 µWb
Pc Coefficient 0.59 Low (Flat)

Table 11: Physics of underwater searching
MW 10x5 / N38

Environment Effective steel pull Effect
Air (land) 3.19 kg Standard
Water (riverbed) 3.65 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!

1. Sliding resistance

*Warning: On a vertical wall, the magnet holds just approx. 20-30% of its perpendicular strength.

2. Steel saturation

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

3. Thermal stability

*For standard magnets, the max working temp is 80°C.

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

chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.59

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

Elemental analysis

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: 010011-2026
Measurement Calculator

Magnet pull force


Magnetic Field

View also proposals

The offered product is an incredibly powerful rod magnet, composed of advanced NdFeB material, which, with dimensions of Ø10x5 mm, guarantees the highest energy density. This specific item boasts a tolerance of ±0.1mm and professional build quality, making it a perfect solution for the most demanding engineers and designers. As a cylindrical magnet with significant force (approx. 3.19 kg), this product is in stock from our warehouse in Poland, ensuring lightning-fast order fulfillment. Furthermore, its Ni-Cu-Ni coating effectively protects it against corrosion in standard operating conditions, ensuring an aesthetic appearance and durability for years.
This model is ideal for building electric motors, advanced sensors, and efficient magnetic separators, where field concentration on a small surface counts. Thanks to the high power of 31.28 N with a weight of only 2.95 g, this cylindrical magnet is indispensable in miniature devices and wherever low weight is crucial.
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 automation, specialized industrial adhesives are used, which do not react with the nickel coating and fill the gap, guaranteeing durability of the connection.
Magnets N38 are suitable for the majority of applications in automation and machine building, where extreme miniaturization with maximum force is not required. If you need even stronger magnets in the same volume (Ø10x5), 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 5 mm. The key parameter here is the lifting capacity amounting to approximately 3.19 kg (force ~31.28 N), which, with such defined dimensions, proves the high grade 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. 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.

Pros and cons of neodymium magnets.

Pros

Apart from their consistent magnetic energy, neodymium magnets have these key benefits:
  • They have unchanged lifting capacity, and over around 10 years their performance decreases symbolically – ~1% (in testing),
  • Neodymium magnets are characterized by remarkably resistant to loss of magnetic properties caused by external field sources,
  • The use of an shiny coating of noble metals (nickel, gold, silver) causes the element to look better,
  • Magnetic induction on the surface of the magnet turns out to be extremely intense,
  • Due to their durability and thermal resistance, neodymium magnets are capable of operate (depending on the shape) even at high temperatures reaching 230°C or more...
  • Due to the possibility of accurate shaping and customization to custom requirements, magnetic components can be created in a broad palette of forms and dimensions, which expands the range of possible applications,
  • Huge importance in modern technologies – they are used in magnetic memories, electric motors, diagnostic systems, also complex engineering applications.
  • Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in small dimensions, which enables their usage in small systems

Disadvantages

Characteristics of disadvantages of neodymium magnets and proposals for their use:
  • At strong impacts they can break, therefore we recommend placing them in special holders. A metal housing provides additional protection against damage and increases the magnet's durability.
  • When exposed to high temperature, neodymium magnets experience a drop in force. Often, when the temperature exceeds 80°C, their power decreases (depending on the size, as well as shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
  • Magnets exposed to a humid environment can corrode. Therefore when using outdoors, we advise using water-impermeable magnets made of rubber, plastic or other material protecting against moisture
  • Due to limitations in creating threads and complicated shapes in magnets, we propose using casing - magnetic holder.
  • Possible danger resulting from small fragments of magnets can be dangerous, in case of ingestion, which gains importance in the context of child health protection. Furthermore, small elements of these magnets are able to disrupt the diagnostic process medical when they are in the body.
  • With budget limitations the cost of neodymium magnets can be a barrier,

Holding force characteristics

Optimal lifting capacity of a neodymium magnetwhat affects it?

Breakaway force was defined for the most favorable conditions, taking into account:
  • with the use of a yoke made of special test steel, guaranteeing full magnetic saturation
  • possessing a massiveness of minimum 10 mm to avoid saturation
  • with a plane perfectly flat
  • with total lack of distance (without impurities)
  • during detachment in a direction perpendicular to the mounting surface
  • at conditions approx. 20°C

Lifting capacity in practice – influencing factors

It is worth knowing that the application force will differ influenced by elements below, in order of importance:
  • Clearance – the presence of foreign body (paint, dirt, gap) acts as an insulator, which reduces capacity steeply (even by 50% at 0.5 mm).
  • Force direction – remember that the magnet has greatest strength perpendicularly. Under sliding down, the holding force drops significantly, often to levels of 20-30% of the nominal value.
  • Substrate thickness – to utilize 100% power, the steel must be sufficiently thick. Thin sheet restricts the attraction force (the magnet "punches through" it).
  • Metal type – different alloys attracts identically. Alloy additives worsen the attraction effect.
  • Smoothness – ideal contact is obtained only on polished steel. Any scratches and bumps create air cushions, weakening the magnet.
  • Temperature – temperature increase results in weakening of induction. Check the thermal limit for a given model.

Holding force was tested on a smooth steel plate of 20 mm thickness, when the force acted perpendicularly, however under shearing force the load capacity is reduced by as much as 5 times. Moreover, even a minimal clearance between the magnet and the plate lowers the load capacity.

H&S for magnets
Swallowing risk

NdFeB magnets are not intended for children. Eating several magnets may result in them attracting across intestines, which constitutes a severe health hazard and requires urgent medical intervention.

Flammability

Powder generated during cutting of magnets is flammable. Do not drill into magnets without proper cooling and knowledge.

Caution required

Be careful. Rare earth magnets attract from a long distance and snap with huge force, often quicker than you can move away.

Fragile material

Despite metallic appearance, neodymium is delicate and not impact-resistant. Do not hit, as the magnet may crumble into hazardous fragments.

Implant safety

Health Alert: Neodymium magnets can turn off pacemakers and defibrillators. Stay away if you have medical devices.

Threat to electronics

Powerful magnetic fields can destroy records on credit cards, hard drives, and other magnetic media. Keep a distance of min. 10 cm.

Operating temperature

Keep cool. Neodymium magnets are sensitive to heat. If you need resistance above 80°C, ask us about HT versions (H, SH, UH).

Impact on smartphones

Remember: neodymium magnets produce a field that interferes with sensitive sensors. Maintain a safe distance from your phone, tablet, and GPS.

Pinching danger

Danger of trauma: The attraction force is so great that it can cause hematomas, crushing, and even bone fractures. Use thick gloves.

Allergic reactions

Some people suffer from a contact allergy to Ni, which is the typical protective layer for neodymium magnets. Extended handling might lead to dermatitis. We recommend use safety gloves.

Danger! Looking for details? Check our post: Why are neodymium magnets dangerous?