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MW 10x15 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010005

GTIN/EAN: 5906301810049

5.00

Diameter Ø

10 mm [±0,1 mm]

Height

15 mm [±0,1 mm]

Weight

8.84 g

Magnetization Direction

↑ axial

Load capacity

2.60 kg / 25.51 N

Magnetic Induction

587.44 mT / 5874 Gs

Coating

[NiCuNi] Nickel

6.15 with VAT / pcs + price for transport

5.00 ZŁ net + 23% VAT / pcs

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Technical details - MW 10x15 / N38 - cylindrical magnet

Specification / characteristics - MW 10x15 / N38 - cylindrical magnet

properties
properties values
Cat. no. 010005
GTIN/EAN 5906301810049
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 15 mm [±0,1 mm]
Weight 8.84 g
Magnetization Direction ↑ axial
Load capacity ~ ? 2.60 kg / 25.51 N
Magnetic Induction ~ ? 587.44 mT / 5874 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 10x15 / 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

Engineering simulation of the assembly - data

These values are the result of a engineering calculation. Values rely on algorithms for the material Nd2Fe14B. Real-world performance may differ from theoretical values. Treat these data as a reference point during assembly planning.

Table 1: Static force (force vs distance) - interaction chart
MW 10x15 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 5870 Gs
587.0 mT
2.60 kg / 5.73 lbs
2600.0 g / 25.5 N
warning
1 mm 4702 Gs
470.2 mT
1.67 kg / 3.68 lbs
1668.3 g / 16.4 N
weak grip
2 mm 3645 Gs
364.5 mT
1.00 kg / 2.21 lbs
1002.8 g / 9.8 N
weak grip
3 mm 2784 Gs
278.4 mT
0.58 kg / 1.29 lbs
584.8 g / 5.7 N
weak grip
5 mm 1631 Gs
163.1 mT
0.20 kg / 0.44 lbs
200.7 g / 2.0 N
weak grip
10 mm 534 Gs
53.4 mT
0.02 kg / 0.05 lbs
21.5 g / 0.2 N
weak grip
15 mm 234 Gs
23.4 mT
0.00 kg / 0.01 lbs
4.1 g / 0.0 N
weak grip
20 mm 123 Gs
12.3 mT
0.00 kg / 0.00 lbs
1.1 g / 0.0 N
weak grip
30 mm 46 Gs
4.6 mT
0.00 kg / 0.00 lbs
0.2 g / 0.0 N
weak grip
50 mm 13 Gs
1.3 mT
0.00 kg / 0.00 lbs
0.0 g / 0.0 N
weak grip

Table 2: Vertical hold (wall)
MW 10x15 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 0.52 kg / 1.15 lbs
520.0 g / 5.1 N
1 mm Stal (~0.2) 0.33 kg / 0.74 lbs
334.0 g / 3.3 N
2 mm Stal (~0.2) 0.20 kg / 0.44 lbs
200.0 g / 2.0 N
3 mm Stal (~0.2) 0.12 kg / 0.26 lbs
116.0 g / 1.1 N
5 mm Stal (~0.2) 0.04 kg / 0.09 lbs
40.0 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 (shearing) - vertical pull
MW 10x15 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
0.78 kg / 1.72 lbs
780.0 g / 7.7 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
0.52 kg / 1.15 lbs
520.0 g / 5.1 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.26 kg / 0.57 lbs
260.0 g / 2.6 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
1.30 kg / 2.87 lbs
1300.0 g / 12.8 N

Table 4: Material efficiency (saturation) - power losses
MW 10x15 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
10%
0.26 kg / 0.57 lbs
260.0 g / 2.6 N
1 mm
25%
0.65 kg / 1.43 lbs
650.0 g / 6.4 N
2 mm
50%
1.30 kg / 2.87 lbs
1300.0 g / 12.8 N
3 mm
75%
1.95 kg / 4.30 lbs
1950.0 g / 19.1 N
5 mm
100%
2.60 kg / 5.73 lbs
2600.0 g / 25.5 N
10 mm
100%
2.60 kg / 5.73 lbs
2600.0 g / 25.5 N
11 mm
100%
2.60 kg / 5.73 lbs
2600.0 g / 25.5 N
12 mm
100%
2.60 kg / 5.73 lbs
2600.0 g / 25.5 N

Table 5: Thermal stability (stability) - thermal limit
MW 10x15 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 2.60 kg / 5.73 lbs
2600.0 g / 25.5 N
OK
40 °C -2.2% 2.54 kg / 5.61 lbs
2542.8 g / 24.9 N
OK
60 °C -4.4% 2.49 kg / 5.48 lbs
2485.6 g / 24.4 N
OK
80 °C -6.6% 2.43 kg / 5.35 lbs
2428.4 g / 23.8 N
100 °C -28.8% 1.85 kg / 4.08 lbs
1851.2 g / 18.2 N

Table 6: Magnet-Magnet interaction (repulsion) - field collision
MW 10x15 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Lateral Force (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 16.68 kg / 36.78 lbs
6 103 Gs
2.50 kg / 5.52 lbs
2502 g / 24.5 N
N/A
1 mm 13.52 kg / 29.80 lbs
10 567 Gs
2.03 kg / 4.47 lbs
2028 g / 19.9 N
12.17 kg / 26.82 lbs
~0 Gs
2 mm 10.70 kg / 23.60 lbs
9 404 Gs
1.61 kg / 3.54 lbs
1606 g / 15.8 N
9.63 kg / 21.24 lbs
~0 Gs
3 mm 8.35 kg / 18.40 lbs
8 304 Gs
1.25 kg / 2.76 lbs
1252 g / 12.3 N
7.51 kg / 16.56 lbs
~0 Gs
5 mm 4.92 kg / 10.85 lbs
6 377 Gs
0.74 kg / 1.63 lbs
738 g / 7.2 N
4.43 kg / 9.77 lbs
~0 Gs
10 mm 1.29 kg / 2.84 lbs
3 262 Gs
0.19 kg / 0.43 lbs
193 g / 1.9 N
1.16 kg / 2.56 lbs
~0 Gs
20 mm 0.14 kg / 0.30 lbs
1 068 Gs
0.02 kg / 0.05 lbs
21 g / 0.2 N
0.12 kg / 0.27 lbs
~0 Gs
50 mm 0.00 kg / 0.01 lbs
145 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
93 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
63 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
45 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
33 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
25 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 10x15 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 7.5 cm
Hearing aid 10 Gs (1.0 mT) 5.5 cm
Timepiece 20 Gs (2.0 mT) 4.5 cm
Mobile device 40 Gs (4.0 mT) 3.5 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

Table 8: Dynamics (cracking risk) - collision effects
MW 10x15 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 17.39 km/h
(4.83 m/s)
0.10 J
30 mm 29.96 km/h
(8.32 m/s)
0.31 J
50 mm 38.67 km/h
(10.74 m/s)
0.51 J
100 mm 54.69 km/h
(15.19 m/s)
1.02 J

Table 9: Anti-corrosion coating durability
MW 10x15 / 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 (Flux)
MW 10x15 / N38

Parameter Value SI Unit / Description
Magnetic Flux 4 950 Mx 49.5 µWb
Pc Coefficient 1.09 High (Stable)

Table 11: Submerged application
MW 10x15 / N38

Environment Effective steel pull Effect
Air (land) 2.60 kg Standard
Water (riverbed) 2.98 kg
(+0.38 kg buoyancy gain)
+14.5%
Corrosion warning: This magnet has a standard nickel coating. After use in water, it must be dried and maintained immediately, otherwise it will rust!
1. Shear force

*Warning: On a vertical wall, the magnet holds only a fraction of its max power.

2. Plate thickness effect

*Thin metal sheet (e.g. 0.5mm PC case) significantly reduces the holding force.

3. Thermal stability

*For N38 grade, the max working temp is 80°C.

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

chart generated for the permeance coefficient Pc (Permeance Coefficient) = 1.09

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
Material specification
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: 010005-2026
Magnet Unit Converter
Magnet pull force

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The presented product is an exceptionally strong rod magnet, made from modern NdFeB material, which, at dimensions of Ø10x15 mm, guarantees the highest energy density. The MW 10x15 / N38 model is characterized by high dimensional repeatability and professional build quality, making it an ideal solution for professional engineers and designers. As a magnetic rod with impressive force (approx. 2.60 kg), this product is available off-the-shelf from our European logistics center, ensuring rapid order fulfillment. Furthermore, its Ni-Cu-Ni coating shields it against corrosion in standard operating conditions, guaranteeing an aesthetic appearance and durability for years.
This model is perfect for building generators, advanced sensors, and efficient filters, where maximum induction on a small surface counts. Thanks to the high power of 25.51 N with a weight of only 8.84 g, this rod is indispensable in electronics and wherever every gram matters.
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 professional component. To ensure long-term durability 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 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 (Ø10x15), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard available off-the-shelf in our store.
This model is characterized by dimensions Ø10x15 mm, which, at a weight of 8.84 g, makes it an element with impressive magnetic energy density. The value of 25.51 N means that the magnet is capable of holding a weight many times exceeding its own mass of 8.84 g. 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 15 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.

Strengths as well as weaknesses of neodymium magnets.

Advantages

In addition to their magnetic efficiency, neodymium magnets provide the following advantages:
  • Their strength is durable, and after approximately 10 years it decreases only by ~1% (theoretically),
  • Neodymium magnets are characterized by exceptionally resistant to loss of magnetic properties caused by external interference,
  • A magnet with a metallic nickel surface has an effective appearance,
  • The surface of neodymium magnets generates a intense magnetic field – this is a key feature,
  • 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 the option of accurate molding and customization to individualized solutions, NdFeB magnets can be created in a wide range of geometric configurations, which expands the range of possible applications,
  • Fundamental importance in high-tech industry – they are commonly used in magnetic memories, brushless drives, advanced medical instruments, also industrial machines.
  • Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications

Disadvantages

Disadvantages of NdFeB magnets:
  • At very strong impacts they can break, therefore we recommend placing them in strong housings. A metal housing provides additional protection against damage and increases the magnet's durability.
  • Neodymium magnets lose power 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 very resistant to heat
  • Magnets exposed to a humid environment can rust. Therefore while using outdoors, we suggest using waterproof magnets made of rubber, plastic or other material resistant to moisture
  • We recommend cover - magnetic holder, due to difficulties in producing nuts inside the magnet and complex shapes.
  • Potential hazard related to microscopic parts of magnets can be dangerous, in case of ingestion, which becomes key in the aspect of protecting the youngest. Additionally, small elements of these products are able to disrupt the diagnostic process medical in case of swallowing.
  • Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications

Pull force analysis

Magnetic strength at its maximum – what affects it?

Magnet power was defined for optimal configuration, taking into account:
  • on a block made of structural steel, optimally conducting the magnetic flux
  • whose transverse dimension equals approx. 10 mm
  • with an polished touching surface
  • without any insulating layer between the magnet and steel
  • for force applied at a right angle (pull-off, not shear)
  • in stable room temperature

Key elements affecting lifting force

Real force is influenced by specific conditions, including (from most important):
  • Distance – the presence of foreign body (rust, tape, air) interrupts the magnetic circuit, which reduces capacity steeply (even by 50% at 0.5 mm).
  • Direction of force – maximum parameter is available only during perpendicular pulling. The force required to slide of the magnet along the plate is typically several times smaller (approx. 1/5 of the lifting capacity).
  • Steel thickness – too thin steel does not close the flux, causing part of the power to be lost into the air.
  • Metal type – not every steel reacts the same. High carbon content weaken the interaction with the magnet.
  • Surface condition – ground elements ensure maximum contact, which increases field saturation. Rough surfaces weaken the grip.
  • Thermal factor – hot environment weakens pulling force. Exceeding the limit temperature can permanently damage the magnet.

Lifting capacity was determined using a steel plate with a smooth surface of optimal thickness (min. 20 mm), under perpendicular pulling force, in contrast under parallel forces the holding force is lower. Additionally, even a small distance between the magnet’s surface and the plate reduces the holding force.

Safe handling of NdFeB magnets
Danger to the youngest

Absolutely store magnets away from children. Choking hazard is high, and the effects of magnets connecting inside the body are tragic.

Medical interference

Medical warning: Strong magnets can turn off heart devices and defibrillators. Do not approach if you have medical devices.

Safe distance

Device Safety: Strong magnets can damage payment cards and delicate electronics (pacemakers, hearing aids, timepieces).

Do not drill into magnets

Fire warning: Neodymium dust is explosive. Avoid machining magnets in home conditions as this risks ignition.

Powerful field

Before starting, read the rules. Sudden snapping can break the magnet or injure your hand. Be predictive.

Crushing risk

Mind your fingers. Two large magnets will snap together immediately with a force of massive weight, destroying everything in their path. Exercise extreme caution!

Beware of splinters

NdFeB magnets are ceramic materials, which means they are fragile like glass. Collision of two magnets leads to them shattering into shards.

Skin irritation risks

Certain individuals experience a sensitization to Ni, which is the standard coating for neodymium magnets. Prolonged contact can result in a rash. We strongly advise use protective gloves.

Heat warning

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

Threat to navigation

A strong magnetic field negatively affects the operation of magnetometers in smartphones and GPS navigation. Do not bring magnets close to a smartphone to avoid damaging the sensors.

Caution! Need more info? Check our post: Are neodymium magnets dangerous?
Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98