MW 10x15 / N38 - cylindrical magnet
cylindrical magnet
Catalog no 010005
GTIN/EAN: 5906301810049
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 ZŁ 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 | values |
|---|---|
| Cat. no. | 010005 |
| GTIN/EAN | 5906301810049 |
| Production/Distribution | Dhit sp. z o.o. |
| 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
| 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
| 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 assembly - data
These information are the result of a engineering simulation. Values are based on models for the material Nd2Fe14B. Actual performance might slightly deviate from the simulation results. Use these data as a reference point during assembly planning.
Table 1: Static pull force (force vs distance) - power drop
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 pounds
2600.0 g / 25.5 N
|
warning |
| 1 mm |
4702 Gs
470.2 mT
|
1.67 kg / 3.68 pounds
1668.3 g / 16.4 N
|
safe |
| 2 mm |
3645 Gs
364.5 mT
|
1.00 kg / 2.21 pounds
1002.8 g / 9.8 N
|
safe |
| 3 mm |
2784 Gs
278.4 mT
|
0.58 kg / 1.29 pounds
584.8 g / 5.7 N
|
safe |
| 5 mm |
1631 Gs
163.1 mT
|
0.20 kg / 0.44 pounds
200.7 g / 2.0 N
|
safe |
| 10 mm |
534 Gs
53.4 mT
|
0.02 kg / 0.05 pounds
21.5 g / 0.2 N
|
safe |
| 15 mm |
234 Gs
23.4 mT
|
0.00 kg / 0.01 pounds
4.1 g / 0.0 N
|
safe |
| 20 mm |
123 Gs
12.3 mT
|
0.00 kg / 0.00 pounds
1.1 g / 0.0 N
|
safe |
| 30 mm |
46 Gs
4.6 mT
|
0.00 kg / 0.00 pounds
0.2 g / 0.0 N
|
safe |
| 50 mm |
13 Gs
1.3 mT
|
0.00 kg / 0.00 pounds
0.0 g / 0.0 N
|
safe |
Table 2: Sliding hold (vertical surface)
MW 10x15 / N38
| Distance (mm) | Friction coefficient | Pull Force (kg/lbs/g/N) |
|---|---|---|
| 0 mm | Stal (~0.2) |
0.52 kg / 1.15 pounds
520.0 g / 5.1 N
|
| 1 mm | Stal (~0.2) |
0.33 kg / 0.74 pounds
334.0 g / 3.3 N
|
| 2 mm | Stal (~0.2) |
0.20 kg / 0.44 pounds
200.0 g / 2.0 N
|
| 3 mm | Stal (~0.2) |
0.12 kg / 0.26 pounds
116.0 g / 1.1 N
|
| 5 mm | Stal (~0.2) |
0.04 kg / 0.09 pounds
40.0 g / 0.4 N
|
| 10 mm | Stal (~0.2) |
0.00 kg / 0.01 pounds
4.0 g / 0.0 N
|
| 15 mm | Stal (~0.2) |
0.00 kg / 0.00 pounds
0.0 g / 0.0 N
|
| 20 mm | Stal (~0.2) |
0.00 kg / 0.00 pounds
0.0 g / 0.0 N
|
| 30 mm | Stal (~0.2) |
0.00 kg / 0.00 pounds
0.0 g / 0.0 N
|
| 50 mm | Stal (~0.2) |
0.00 kg / 0.00 pounds
0.0 g / 0.0 N
|
Table 3: Wall mounting (sliding) - behavior on slippery surfaces
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 pounds
780.0 g / 7.7 N
|
| Painted steel (standard) |
µ = 0.2
20% Nominalnej Siły
|
0.52 kg / 1.15 pounds
520.0 g / 5.1 N
|
| Oily/slippery steel |
µ = 0.1
10% Nominalnej Siły
|
0.26 kg / 0.57 pounds
260.0 g / 2.6 N
|
| Magnet with anti-slip rubber |
µ = 0.5
50% Nominalnej Siły
|
1.30 kg / 2.87 pounds
1300.0 g / 12.8 N
|
Table 4: Steel thickness (saturation) - sheet metal selection
MW 10x15 / N38
| Steel thickness (mm) | % power | Real pull force (kg/lbs/g/N) |
|---|---|---|
| 0.5 mm |
|
0.26 kg / 0.57 pounds
260.0 g / 2.6 N
|
| 1 mm |
|
0.65 kg / 1.43 pounds
650.0 g / 6.4 N
|
| 2 mm |
|
1.30 kg / 2.87 pounds
1300.0 g / 12.8 N
|
| 3 mm |
|
1.95 kg / 4.30 pounds
1950.0 g / 19.1 N
|
| 5 mm |
|
2.60 kg / 5.73 pounds
2600.0 g / 25.5 N
|
| 10 mm |
|
2.60 kg / 5.73 pounds
2600.0 g / 25.5 N
|
| 11 mm |
|
2.60 kg / 5.73 pounds
2600.0 g / 25.5 N
|
| 12 mm |
|
2.60 kg / 5.73 pounds
2600.0 g / 25.5 N
|
Table 5: Thermal resistance (stability) - resistance threshold
MW 10x15 / N38
| Ambient temp. (°C) | Power loss | Remaining pull (kg/lbs/g/N) | Status |
|---|---|---|---|
| 20 °C | 0.0% |
2.60 kg / 5.73 pounds
2600.0 g / 25.5 N
|
OK |
| 40 °C | -2.2% |
2.54 kg / 5.61 pounds
2542.8 g / 24.9 N
|
OK |
| 60 °C | -4.4% |
2.49 kg / 5.48 pounds
2485.6 g / 24.4 N
|
OK |
| 80 °C | -6.6% |
2.43 kg / 5.35 pounds
2428.4 g / 23.8 N
|
|
| 100 °C | -28.8% |
1.85 kg / 4.08 pounds
1851.2 g / 18.2 N
|
Table 6: Two magnets (attraction) - field range
MW 10x15 / N38
| Gap (mm) | Attraction (kg/lbs) (N-S) | Sliding Force (kg/lbs/g/N) | Repulsion (kg/lbs) (N-N) |
|---|---|---|---|
| 0 mm |
16.68 kg / 36.78 pounds
6 103 Gs
|
2.50 kg / 5.52 pounds
2502 g / 24.5 N
|
N/A |
| 1 mm |
13.52 kg / 29.80 pounds
10 567 Gs
|
2.03 kg / 4.47 pounds
2028 g / 19.9 N
|
12.17 kg / 26.82 pounds
~0 Gs
|
| 2 mm |
10.70 kg / 23.60 pounds
9 404 Gs
|
1.61 kg / 3.54 pounds
1606 g / 15.8 N
|
9.63 kg / 21.24 pounds
~0 Gs
|
| 3 mm |
8.35 kg / 18.40 pounds
8 304 Gs
|
1.25 kg / 2.76 pounds
1252 g / 12.3 N
|
7.51 kg / 16.56 pounds
~0 Gs
|
| 5 mm |
4.92 kg / 10.85 pounds
6 377 Gs
|
0.74 kg / 1.63 pounds
738 g / 7.2 N
|
4.43 kg / 9.77 pounds
~0 Gs
|
| 10 mm |
1.29 kg / 2.84 pounds
3 262 Gs
|
0.19 kg / 0.43 pounds
193 g / 1.9 N
|
1.16 kg / 2.56 pounds
~0 Gs
|
| 20 mm |
0.14 kg / 0.30 pounds
1 068 Gs
|
0.02 kg / 0.05 pounds
21 g / 0.2 N
|
0.12 kg / 0.27 pounds
~0 Gs
|
| 50 mm |
0.00 kg / 0.01 pounds
145 Gs
|
0.00 kg / 0.00 pounds
0 g / 0.0 N
|
0.00 kg / 0.00 pounds
~0 Gs
|
| 60 mm |
0.00 kg / 0.00 pounds
93 Gs
|
0.00 kg / 0.00 pounds
0 g / 0.0 N
|
0.00 kg / 0.00 pounds
~0 Gs
|
| 70 mm |
0.00 kg / 0.00 pounds
63 Gs
|
0.00 kg / 0.00 pounds
0 g / 0.0 N
|
0.00 kg / 0.00 pounds
~0 Gs
|
| 80 mm |
0.00 kg / 0.00 pounds
45 Gs
|
0.00 kg / 0.00 pounds
0 g / 0.0 N
|
0.00 kg / 0.00 pounds
~0 Gs
|
| 90 mm |
0.00 kg / 0.00 pounds
33 Gs
|
0.00 kg / 0.00 pounds
0 g / 0.0 N
|
0.00 kg / 0.00 pounds
~0 Gs
|
| 100 mm |
0.00 kg / 0.00 pounds
25 Gs
|
0.00 kg / 0.00 pounds
0 g / 0.0 N
|
0.00 kg / 0.00 pounds
~0 Gs
|
Table 7: Protective zones (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 |
| Mechanical watch | 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: Impact energy (cracking risk) - warning
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: Coating parameters (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% |
1. Wall mount (shear)
*Warning: On a vertical surface, the magnet holds merely a fraction of its perpendicular strength.
2. Efficiency vs thickness
*Thin metal sheet (e.g. computer case) significantly reduces 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) = 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.
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% |
Environmental data
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
Other proposals
Advantages as well as disadvantages of Nd2Fe14B magnets.
Advantages
- Their power is durable, and after around 10 years it decreases only by ~1% (according to research),
- They possess excellent resistance to weakening of magnetic properties due to external fields,
- A magnet with a metallic gold surface has better aesthetics,
- The surface of neodymium magnets generates a powerful magnetic field – this is a distinguishing 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...
- Possibility of precise shaping and optimizing to atypical conditions,
- Significant place in modern industrial fields – they are commonly used in data components, electric drive systems, precision medical tools, and modern systems.
- Relatively small size with high pulling force – neodymium magnets offer high power in compact dimensions, which makes them useful in compact constructions
Weaknesses
- They are prone to damage upon heavy impacts. To avoid cracks, it is worth securing magnets using a steel holder. Such protection not only shields the magnet but also increases its resistance to damage
- We warn that neodymium magnets can lose their power 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. To use them in conditions outside, it is recommended to use protective magnets, such as those in rubber or plastics, which prevent oxidation as well as corrosion.
- Due to limitations in creating nuts and complicated shapes in magnets, we propose using casing - magnetic mechanism.
- Possible danger resulting from small fragments of magnets can be dangerous, in case of ingestion, which becomes key in the context of child safety. Furthermore, tiny parts of these magnets can be problematic in diagnostics medical after entering the body.
- High unit price – neodymium magnets have a higher price than other types of magnets (e.g. ferrite), which can limit application in large quantities
Holding force characteristics
Maximum holding power of the magnet – what contributes to it?
- on a base made of structural steel, optimally conducting the magnetic field
- possessing a thickness of at least 10 mm to ensure full flux closure
- with a surface perfectly flat
- without any air gap between the magnet and steel
- under perpendicular force direction (90-degree angle)
- at conditions approx. 20°C
What influences lifting capacity in practice
- Distance – the presence of any layer (paint, dirt, air) acts as an insulator, which lowers power rapidly (even by 50% at 0.5 mm).
- Force direction – catalog parameter refers to detachment vertically. When applying parallel force, the magnet exhibits much less (typically approx. 20-30% of maximum force).
- Element thickness – for full efficiency, the steel must be adequately massive. Thin sheet restricts the attraction force (the magnet "punches through" it).
- Metal type – not every steel attracts identically. Alloy additives weaken the attraction effect.
- Smoothness – ideal contact is possible only on polished steel. Rough texture reduce the real contact area, reducing force.
- Operating temperature – NdFeB sinters have a negative temperature coefficient. At higher temperatures they are weaker, and at low temperatures they can be stronger (up to a certain limit).
Holding force was tested on the plate surface of 20 mm thickness, when a perpendicular force was applied, in contrast under attempts to slide the magnet the lifting capacity is smaller. In addition, even a slight gap between the magnet’s surface and the plate lowers the load capacity.
Safety rules for work with neodymium magnets
Eye protection
Neodymium magnets are ceramic materials, meaning they are prone to chipping. Clashing of two magnets will cause them breaking into shards.
No play value
NdFeB magnets are not intended for children. Eating several magnets can lead to them connecting inside the digestive tract, which poses a severe health hazard and requires urgent medical intervention.
Mechanical processing
Mechanical processing of neodymium magnets poses a fire hazard. Magnetic powder oxidizes rapidly with oxygen and is hard to extinguish.
Do not underestimate power
Use magnets with awareness. Their powerful strength can surprise even professionals. Plan your moves and respect their power.
Warning for heart patients
Medical warning: Neodymium magnets can deactivate heart devices and defibrillators. Stay away if you have medical devices.
Allergy Warning
Warning for allergy sufferers: The Ni-Cu-Ni coating consists of nickel. If redness occurs, cease handling magnets and use protective gear.
Physical harm
Danger of trauma: The pulling power is so great that it can cause blood blisters, pinching, and even bone fractures. Protective gloves are recommended.
Threat to navigation
GPS units and smartphones are extremely susceptible to magnetic fields. Close proximity with a strong magnet can ruin the internal compass in your phone.
Keep away from computers
Intense magnetic fields can erase data on credit cards, hard drives, and storage devices. Keep a distance of at least 10 cm.
Maximum temperature
Do not overheat. Neodymium magnets are sensitive to temperature. If you need resistance above 80°C, look for HT versions (H, SH, UH).
