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 |
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 |
|
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: 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% |
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.
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 |
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Strengths as well as weaknesses of neodymium magnets.
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
- 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?
- 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
- 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.
