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MW 10x5 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010011

GTIN/EAN: 5906301810100

5.00

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

1.513 with VAT / pcs + price for transport

1.230 ZŁ net + 23% VAT / pcs

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Product card - 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
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 modeling of the product - technical parameters

Presented data represent the result of a engineering simulation. Results are based on models for the material Nd2Fe14B. Actual parameters might slightly deviate from the simulation results. Please consider these calculations as a preliminary roadmap when designing systems.

Table 1: Static pull force (force vs gap) - interaction chart
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
warning
1 mm 3547 Gs
354.7 mT
2.10 kg / 4.62 lbs
2095.9 g / 20.6 N
warning
2 mm 2743 Gs
274.3 mT
1.25 kg / 2.76 lbs
1252.9 g / 12.3 N
weak grip
3 mm 2068 Gs
206.8 mT
0.71 kg / 1.57 lbs
712.2 g / 7.0 N
weak grip
5 mm 1161 Gs
116.1 mT
0.22 kg / 0.50 lbs
224.7 g / 2.2 N
weak grip
10 mm 336 Gs
33.6 mT
0.02 kg / 0.04 lbs
18.8 g / 0.2 N
weak grip
15 mm 133 Gs
13.3 mT
0.00 kg / 0.01 lbs
2.9 g / 0.0 N
weak grip
20 mm 65 Gs
6.5 mT
0.00 kg / 0.00 lbs
0.7 g / 0.0 N
weak grip
30 mm 22 Gs
2.2 mT
0.00 kg / 0.00 lbs
0.1 g / 0.0 N
weak grip
50 mm 5 Gs
0.5 mT
0.00 kg / 0.00 lbs
0.0 g / 0.0 N
weak grip

Table 2: Vertical force (vertical surface)
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) - behavior on slippery surfaces
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: Material efficiency (substrate influence) - 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) - power drop
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 (repulsion) - forces in the system
MW 10x5 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Lateral Force (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: Safety (HSE) (implants) - 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
Timepiece 20 Gs (2.0 mT) 3.5 cm
Mobile device 40 Gs (4.0 mT) 2.5 cm
Car key 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: Impact energy (cracking risk) - warning
MW 10x5 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 33.29 km/h
(9.25 m/s)
0.13 J
30 mm 57.44 km/h
(15.96 m/s)
0.38 J
50 mm 74.16 km/h
(20.60 m/s)
0.63 J
100 mm 104.87 km/h
(29.13 m/s)
1.25 J

Table 9: Corrosion resistance
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: Construction 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: Submerged application
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%
Rust risk: Standard nickel requires drying after every contact with moisture; lack of maintenance will lead to rust spots.
1. Wall mount (shear)

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

2. Plate thickness effect

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

3. Temperature resistance

*For N38 material, 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.

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%
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: 010011-2026
Magnet Unit Converter
Pulling force

Magnetic Induction

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The offered product is an incredibly powerful cylinder magnet, produced from advanced NdFeB material, which, with dimensions of Ø10x5 mm, guarantees the highest energy density. This specific item boasts high dimensional repeatability and industrial build quality, making it a perfect solution for professional engineers and designers. As a cylindrical magnet with impressive force (approx. 3.19 kg), this product is in stock from our warehouse in Poland, ensuring rapid order fulfillment. Furthermore, its 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 generators, advanced sensors, and efficient filters, where maximum induction on a small surface counts. Thanks to the high power of 31.28 N with a weight of only 2.95 g, this rod is indispensable in electronics and wherever low weight is crucial.
Due to the delicate structure of the ceramic sinter, 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 NdFeB grade N38 are strong enough for the majority 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 (Ø10x5), 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 Ø10x5 mm, which, at a weight of 2.95 g, makes it an element with impressive magnetic energy density. 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 oxidation, giving it an aesthetic, silvery shine.
This rod magnet is magnetized axially (along the height of 5 mm), which means that the N and S poles are located on the flat, circular surfaces. 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 through the diameter if your project requires it.

Pros as well as cons of rare earth magnets.

Advantages

Apart from their superior magnetic energy, neodymium magnets have these key benefits:
  • They do not lose strength, even over nearly ten years – the decrease in strength is only ~1% (based on measurements),
  • They do not lose their magnetic properties even under external field action,
  • The use of an shiny layer of noble metals (nickel, gold, silver) causes the element to have aesthetics,
  • Neodymium magnets ensure maximum magnetic induction on a their surface, which allows for strong attraction,
  • Neodymium magnets are characterized by very high magnetic induction on the magnet surface and can function (depending on the shape) even at a temperature of 230°C or more...
  • Possibility of individual forming as well as optimizing to individual requirements,
  • Key role in advanced technology sectors – they serve a role in magnetic memories, motor assemblies, precision medical tools, and other advanced devices.
  • Thanks to efficiency per cm³, small magnets offer high operating force, occupying minimum space,

Weaknesses

Disadvantages of neodymium magnets:
  • Brittleness is one of their disadvantages. Upon intense impact they can fracture. We advise keeping them in a steel housing, which not only secures them against impacts but also raises their durability
  • We warn that neodymium magnets can lose their strength at high temperatures. To prevent this, we recommend our specialized [AH] magnets, which work effectively even at 230°C.
  • 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 prevent oxidation and corrosion.
  • We recommend cover - magnetic mechanism, due to difficulties in producing nuts inside the magnet and complex forms.
  • Potential hazard resulting from small fragments of magnets can be dangerous, in case of ingestion, which gains importance in the context of child health protection. It is also worth noting that small elements of these products are able to be problematic in diagnostics medical in case of swallowing.
  • High unit price – neodymium magnets are more expensive than other types of magnets (e.g. ferrite), which hinders application in large quantities

Holding force characteristics

Detachment force of the magnet in optimal conditionswhat contributes to it?

The lifting capacity listed is a measurement result performed under the following configuration:
  • with the contact of a sheet made of low-carbon steel, ensuring full magnetic saturation
  • whose thickness equals approx. 10 mm
  • with an polished touching surface
  • without the slightest air gap between the magnet and steel
  • during detachment in a direction vertical to the mounting surface
  • at room temperature

Lifting capacity in practice – influencing factors

It is worth knowing that the working load will differ influenced by the following factors, in order of importance:
  • Space between magnet and steel – every millimeter of distance (caused e.g. by varnish or dirt) drastically reduces the magnet efficiency, often by half at just 0.5 mm.
  • Force direction – declared lifting capacity refers to detachment vertically. When applying parallel force, the magnet exhibits much less (typically approx. 20-30% of maximum force).
  • Substrate thickness – for full efficiency, the steel must be adequately massive. Thin sheet restricts the lifting capacity (the magnet "punches through" it).
  • Plate material – low-carbon steel gives the best results. Alloy admixtures reduce magnetic properties and holding force.
  • Plate texture – smooth surfaces ensure maximum contact, which improves field saturation. Uneven metal reduce efficiency.
  • Operating temperature – NdFeB sinters have a negative temperature coefficient. When it is hot they lose power, and at low temperatures gain strength (up to a certain limit).

Lifting capacity testing was performed on plates with a smooth surface of suitable thickness, under a perpendicular pulling force, in contrast under attempts to slide the magnet the holding force is lower. Moreover, even a slight gap between the magnet and the plate decreases the lifting capacity.

Precautions when working with neodymium magnets
Beware of splinters

Beware of splinters. Magnets can fracture upon violent connection, ejecting sharp fragments into the air. Wear goggles.

ICD Warning

People with a ICD have to maintain an large gap from magnets. The magnetism can interfere with the functioning of the implant.

Flammability

Powder produced during cutting of magnets is self-igniting. Do not drill into magnets unless you are an expert.

Nickel coating and allergies

Nickel alert: The Ni-Cu-Ni coating contains nickel. If skin irritation appears, cease handling magnets and use protective gear.

Swallowing risk

Product intended for adults. Small elements can be swallowed, leading to serious injuries. Keep out of reach of children and animals.

Hand protection

Large magnets can break fingers instantly. Never place your hand betwixt two attracting surfaces.

Respect the power

Handle magnets with awareness. Their powerful strength can shock even experienced users. Plan your moves and do not underestimate their force.

Thermal limits

Monitor thermal conditions. Heating the magnet above 80 degrees Celsius will ruin its magnetic structure and strength.

Keep away from electronics

Navigation devices and mobile phones are extremely susceptible to magnetism. Close proximity with a strong magnet can decalibrate the sensors in your phone.

Magnetic media

Intense magnetic fields can erase data on payment cards, hard drives, and other magnetic media. Keep a distance of min. 10 cm.

Safety First! Looking for details? Check our post: Are neodymium magnets dangerous?
Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98