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
bulk discounts:
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Technical data of the product - 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 |
Technical simulation of the magnet - technical parameters
Presented information are the direct effect of a engineering analysis. Results were calculated on algorithms for the material Nd2Fe14B. Real-world conditions might slightly differ. Treat these data as a supplementary guide during assembly planning.
Table 1: Static pull force (force vs gap) - 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 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
|
safe |
| 2 mm |
3645 Gs
364.5 mT
|
1.00 kg / 2.21 LBS
1002.8 g / 9.8 N
|
safe |
| 3 mm |
2784 Gs
278.4 mT
|
0.58 kg / 1.29 LBS
584.8 g / 5.7 N
|
safe |
| 5 mm |
1631 Gs
163.1 mT
|
0.20 kg / 0.44 LBS
200.7 g / 2.0 N
|
safe |
| 10 mm |
534 Gs
53.4 mT
|
0.02 kg / 0.05 LBS
21.5 g / 0.2 N
|
safe |
| 15 mm |
234 Gs
23.4 mT
|
0.00 kg / 0.01 LBS
4.1 g / 0.0 N
|
safe |
| 20 mm |
123 Gs
12.3 mT
|
0.00 kg / 0.00 LBS
1.1 g / 0.0 N
|
safe |
| 30 mm |
46 Gs
4.6 mT
|
0.00 kg / 0.00 LBS
0.2 g / 0.0 N
|
safe |
| 50 mm |
13 Gs
1.3 mT
|
0.00 kg / 0.00 LBS
0.0 g / 0.0 N
|
safe |
Table 2: Vertical capacity (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: 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 LBS
260.0 g / 2.6 N
|
| 1 mm |
|
0.65 kg / 1.43 LBS
650.0 g / 6.4 N
|
| 2 mm |
|
1.30 kg / 2.87 LBS
1300.0 g / 12.8 N
|
| 3 mm |
|
1.95 kg / 4.30 LBS
1950.0 g / 19.1 N
|
| 5 mm |
|
2.60 kg / 5.73 LBS
2600.0 g / 25.5 N
|
| 10 mm |
|
2.60 kg / 5.73 LBS
2600.0 g / 25.5 N
|
| 11 mm |
|
2.60 kg / 5.73 LBS
2600.0 g / 25.5 N
|
| 12 mm |
|
2.60 kg / 5.73 LBS
2600.0 g / 25.5 N
|
Table 5: Working in heat (stability) - power drop
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: Two magnets (attraction) - field range
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: Protective zones (electronics) - 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 |
| Phone / Smartphone | 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: Collisions (kinetic energy) - 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 (Pc)
MW 10x15 / N38
| Parameter | Value | SI Unit / Description |
|---|---|---|
| Magnetic Flux | 4 950 Mx | 49.5 µWb |
| Pc Coefficient | 1.09 | High (Stable) |
Table 11: Hydrostatics and buoyancy
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. Sliding resistance
*Warning: On a vertical wall, the magnet retains merely a fraction of its max power.
2. Steel saturation
*Thin steel (e.g. computer case) significantly weakens the holding force.
3. Temperature resistance
*For standard magnets, the critical limit 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% |
Sustainability
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
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Pros and cons of neodymium magnets.
Benefits
- They have constant strength, and over around ten years their performance decreases symbolically – ~1% (in testing),
- They are noted for resistance to demagnetization induced by presence of other magnetic fields,
- The use of an elegant layer of noble metals (nickel, gold, silver) causes the element to look better,
- The surface of neodymium magnets generates a concentrated 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...
- Thanks to flexibility in forming and the ability to modify to unusual requirements,
- Wide application in advanced technology sectors – they serve a role in mass storage devices, electromotive mechanisms, diagnostic systems, and multitasking production systems.
- Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications
Limitations
- At very strong impacts they can break, therefore we advise placing them in steel cases. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
- NdFeB magnets lose force when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening 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
- Due to the susceptibility of magnets to corrosion in a humid environment, we advise using waterproof magnets made of rubber, plastic or other material immune to moisture, in case of application outdoors
- We recommend a housing - magnetic mechanism, due to difficulties in realizing nuts inside the magnet and complex shapes.
- Health risk resulting from small fragments of magnets pose a threat, when accidentally swallowed, which is particularly important in the context of child health protection. It is also worth noting that small elements of these magnets can disrupt the diagnostic process medical in case of swallowing.
- High unit price – neodymium magnets cost more than other types of magnets (e.g. ferrite), which increases costs of application in large quantities
Holding force characteristics
Highest magnetic holding force – what it depends on?
- using a base made of high-permeability steel, acting as a magnetic yoke
- whose transverse dimension is min. 10 mm
- with a plane cleaned and smooth
- with direct contact (no coatings)
- for force acting at a right angle (pull-off, not shear)
- in temp. approx. 20°C
Key elements affecting lifting force
- Space between magnet and steel – every millimeter of separation (caused e.g. by veneer or unevenness) drastically reduces the magnet efficiency, often by half at just 0.5 mm.
- Pull-off angle – remember that the magnet has greatest strength perpendicularly. Under sliding down, the capacity drops significantly, often to levels of 20-30% of the nominal value.
- Element thickness – for full efficiency, the steel must be sufficiently thick. Paper-thin metal limits the lifting capacity (the magnet "punches through" it).
- Chemical composition of the base – mild steel attracts best. Higher carbon content decrease magnetic permeability and holding force.
- Surface quality – the smoother and more polished the plate, the better the adhesion and higher the lifting capacity. Unevenness creates an air distance.
- Thermal conditions – NdFeB sinters have a sensitivity to temperature. At higher temperatures they lose power, and at low temperatures gain strength (up to a certain limit).
Lifting capacity was assessed using a polished steel plate of suitable thickness (min. 20 mm), under vertically applied force, in contrast under shearing force the load capacity is reduced by as much as 5 times. Additionally, even a slight gap between the magnet’s surface and the plate reduces the load capacity.
Precautions when working with neodymium magnets
Risk of cracking
NdFeB magnets are ceramic materials, meaning they are very brittle. Clashing of two magnets leads to them cracking into small pieces.
Magnetic media
Intense magnetic fields can erase data on credit cards, hard drives, and storage devices. Stay away of min. 10 cm.
Precision electronics
Navigation devices and smartphones are highly susceptible to magnetic fields. Close proximity with a strong magnet can ruin the internal compass in your phone.
Physical harm
Big blocks can break fingers in a fraction of a second. Never put your hand between two attracting surfaces.
Immense force
Before use, check safety instructions. Uncontrolled attraction can break the magnet or injure your hand. Be predictive.
Operating temperature
Control the heat. Heating the magnet above 80 degrees Celsius will permanently weaken its magnetic structure and pulling force.
Medical interference
Medical warning: Neodymium magnets can turn off heart devices and defibrillators. Do not approach if you have electronic implants.
Nickel allergy
Allergy Notice: The nickel-copper-nickel coating contains nickel. If an allergic reaction occurs, cease working with magnets and use protective gear.
Danger to the youngest
Absolutely store magnets away from children. Risk of swallowing is significant, and the consequences of magnets clamping inside the body are fatal.
Combustion hazard
Dust produced during cutting of magnets is self-igniting. Do not drill into magnets without proper cooling and knowledge.
