MW 14x10 / N38 - cylindrical magnet
cylindrical magnet
Catalog no 010391
GTIN/EAN: 5906301811084
- Diameter Ø
- 14 mm [±0,1 mm]
- Height
- 10 mm [±0,1 mm]
- Weight
- 11.55 g
- Magnetization Direction
- ↑ axial
- Coating
- [NiCuNi] Nickel
How we measure these parameters — certificates and measurements
5.56 zł net / pcs
6.84 zł with VAT (23% VAT) / pcs
bulk discounts:
Need more?Frequently asked questions
What is the maximum working temperature of a disc magnet?
What is the difference between N38, N42 and N52?
What is the dimensional tolerance?
Engineering report for this magnet
Full PDF analysis: pull and shear force, effect of distance, temperature and plate thickness, safety distances and the demagnetization curve.
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Physical properties - MW 14x10 / N38 - cylindrical magnet
Specification / characteristics - MW 14x10 / N38 - cylindrical magnet
| properties | values |
|---|---|
| Cat. no. | 010391 |
| GTIN/EAN | 5906301811084 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 14 mm [±0,1 mm] |
| Height | 10 mm [±0,1 mm] |
| Weight | 11.55 g |
| Magnetization Direction | ↑ axial |
| Load capacity ~ ? | 6.71 kg / 65.83 N |
| Magnetic Induction ~ ? | 507.48 mT / 5075 Gs |
| Coating | [NiCuNi] Nickel |
| Manufacturing Tolerance | ±0.1 mm |
Magnetic properties of material N38
| properties | values | units |
|---|---|---|
| Remanence Br ? | 12.2-12.6 | kGs |
| Remanence Br ? | 1220-1260 | mT |
| Coercivity bHc ? | 10.8-11.5 | kOe |
| Coercivity bHc ? | 860-915 | kA/m |
| Intrinsic coercivity iHc | ≥ 12 | kOe |
| Intrinsic coercivity iHc | ≥ 955 | kA/m |
| Energy product BHmax ? | 36-38 | BH max MGOe |
| Energy product BHmax ? | 287-303 | BH max KJ/m |
| Maximum working 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 | 310 | °C |
| Curie Temperature TF | 590 | °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 analysis of the product - report
Presented information constitute the direct effect of a mathematical simulation. Values are based on models for the material Nd2Fe14B. Actual performance may deviate from the simulation results. Treat these data as a supplementary guide for designers.
Table 1: Static pull force (force vs distance) - characteristics
MW 14x10 / N38
| Distance (mm) | Induction (Gauss) / mT | Pull Force (kg/lbs/g/N) | Risk Status |
|---|---|---|---|
| 0 mm |
5072 Gs
507.2 mT
|
6.71 kg / 14.79 pounds
6710.0 g / 65.8 N
|
warning |
| 1 mm |
4354 Gs
435.4 mT
|
4.94 kg / 10.90 pounds
4944.4 g / 48.5 N
|
warning |
| 2 mm |
3652 Gs
365.2 mT
|
3.48 kg / 7.67 pounds
3479.0 g / 34.1 N
|
warning |
| 3 mm |
3017 Gs
301.7 mT
|
2.37 kg / 5.23 pounds
2373.5 g / 23.3 N
|
warning |
| 5 mm |
2015 Gs
201.5 mT
|
1.06 kg / 2.33 pounds
1058.7 g / 10.4 N
|
weak grip |
| 10 mm |
773 Gs
77.3 mT
|
0.16 kg / 0.34 pounds
155.7 g / 1.5 N
|
weak grip |
| 15 mm |
352 Gs
35.2 mT
|
0.03 kg / 0.07 pounds
32.3 g / 0.3 N
|
weak grip |
| 20 mm |
186 Gs
18.6 mT
|
0.01 kg / 0.02 pounds
9.0 g / 0.1 N
|
weak grip |
| 30 mm |
69 Gs
6.9 mT
|
0.00 kg / 0.00 pounds
1.3 g / 0.0 N
|
weak grip |
| 50 mm |
18 Gs
1.8 mT
|
0.00 kg / 0.00 pounds
0.1 g / 0.0 N
|
weak grip |
Table 2: Shear capacity (vertical surface)
MW 14x10 / N38
| Distance (mm) | Friction coefficient | Pull Force (kg/lbs/g/N) |
|---|---|---|
| 0 mm | Stal (~0.2) |
1.34 kg / 2.96 pounds
1342.0 g / 13.2 N
|
| 1 mm | Stal (~0.2) |
0.99 kg / 2.18 pounds
988.0 g / 9.7 N
|
| 2 mm | Stal (~0.2) |
0.70 kg / 1.53 pounds
696.0 g / 6.8 N
|
| 3 mm | Stal (~0.2) |
0.47 kg / 1.04 pounds
474.0 g / 4.6 N
|
| 5 mm | Stal (~0.2) |
0.21 kg / 0.47 pounds
212.0 g / 2.1 N
|
| 10 mm | Stal (~0.2) |
0.03 kg / 0.07 pounds
32.0 g / 0.3 N
|
| 15 mm | Stal (~0.2) |
0.01 kg / 0.01 pounds
6.0 g / 0.1 N
|
| 20 mm | Stal (~0.2) |
0.00 kg / 0.00 pounds
2.0 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 14x10 / N38
| Surface type | Friction coefficient / % Mocy | Max load (kg/lbs/g/N) |
|---|---|---|
| Raw steel |
µ = 0.3
30% Nominalnej Siły
|
2.01 kg / 4.44 pounds
2013.0 g / 19.7 N
|
| Painted steel (standard) |
µ = 0.2
20% Nominalnej Siły
|
1.34 kg / 2.96 pounds
1342.0 g / 13.2 N
|
| Oily/slippery steel |
µ = 0.1
10% Nominalnej Siły
|
0.67 kg / 1.48 pounds
671.0 g / 6.6 N
|
| Magnet with anti-slip rubber |
µ = 0.5
50% Nominalnej Siły
|
3.36 kg / 7.40 pounds
3355.0 g / 32.9 N
|
Table 4: Steel thickness (substrate influence) - sheet metal selection
MW 14x10 / N38
| Steel thickness (mm) | % power | Real pull force (kg/lbs/g/N) |
|---|---|---|
| 0.5 mm |
|
0.67 kg / 1.48 pounds
671.0 g / 6.6 N
|
| 1 mm |
|
1.68 kg / 3.70 pounds
1677.5 g / 16.5 N
|
| 2 mm |
|
3.36 kg / 7.40 pounds
3355.0 g / 32.9 N
|
| 3 mm |
|
5.03 kg / 11.09 pounds
5032.5 g / 49.4 N
|
| 5 mm |
|
6.71 kg / 14.79 pounds
6710.0 g / 65.8 N
|
| 10 mm |
|
6.71 kg / 14.79 pounds
6710.0 g / 65.8 N
|
| 11 mm |
|
6.71 kg / 14.79 pounds
6710.0 g / 65.8 N
|
| 12 mm |
|
6.71 kg / 14.79 pounds
6710.0 g / 65.8 N
|
Table 5: Thermal resistance (stability) - thermal limit
MW 14x10 / N38
| Ambient temp. (°C) | Power loss | Remaining pull (kg/lbs/g/N) | Status |
|---|---|---|---|
| 20 °C | 0.0% |
6.71 kg / 14.79 pounds
6710.0 g / 65.8 N
|
OK |
| 40 °C | -2.2% |
6.56 kg / 14.47 pounds
6562.4 g / 64.4 N
|
OK |
| 60 °C | -4.4% |
6.41 kg / 14.14 pounds
6414.8 g / 62.9 N
|
OK |
| 80 °C | -6.6% |
6.27 kg / 13.82 pounds
6267.1 g / 61.5 N
|
|
| 100 °C | -28.8% |
4.78 kg / 10.53 pounds
4777.5 g / 46.9 N
|
Table 6: Two magnets (repulsion) - field collision
MW 14x10 / N38
| Gap (mm) | Attraction (kg/lbs) (N-S) | Shear Strength (kg/lbs/g/N) | Repulsion (kg/lbs) (N-N) |
|---|---|---|---|
| 0 mm |
24.41 kg / 53.82 pounds
5 843 Gs
|
3.66 kg / 8.07 pounds
3662 g / 35.9 N
|
N/A |
| 1 mm |
21.12 kg / 46.55 pounds
9 434 Gs
|
3.17 kg / 6.98 pounds
3167 g / 31.1 N
|
19.00 kg / 41.90 pounds
~0 Gs
|
| 2 mm |
17.99 kg / 39.66 pounds
8 708 Gs
|
2.70 kg / 5.95 pounds
2699 g / 26.5 N
|
16.19 kg / 35.70 pounds
~0 Gs
|
| 3 mm |
15.16 kg / 33.43 pounds
7 994 Gs
|
2.27 kg / 5.01 pounds
2274 g / 22.3 N
|
13.65 kg / 30.08 pounds
~0 Gs
|
| 5 mm |
10.49 kg / 23.12 pounds
6 649 Gs
|
1.57 kg / 3.47 pounds
1573 g / 15.4 N
|
9.44 kg / 20.81 pounds
~0 Gs
|
| 10 mm |
3.85 kg / 8.49 pounds
4 029 Gs
|
0.58 kg / 1.27 pounds
578 g / 5.7 N
|
3.47 kg / 7.64 pounds
~0 Gs
|
| 20 mm |
0.57 kg / 1.25 pounds
1 545 Gs
|
0.08 kg / 0.19 pounds
85 g / 0.8 N
|
0.51 kg / 1.12 pounds
~0 Gs
|
| 50 mm |
0.01 kg / 0.02 pounds
218 Gs
|
0.00 kg / 0.00 pounds
2 g / 0.0 N
|
0.01 kg / 0.02 pounds
~0 Gs
|
| 60 mm |
0.00 kg / 0.01 pounds
139 Gs
|
0.00 kg / 0.00 pounds
1 g / 0.0 N
|
0.00 kg / 0.00 pounds
~0 Gs
|
| 70 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
|
| 80 mm |
0.00 kg / 0.00 pounds
66 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
48 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
36 Gs
|
0.00 kg / 0.00 pounds
0 g / 0.0 N
|
0.00 kg / 0.00 pounds
~0 Gs
|
Table 7: Protective zones (electronics) - precautionary measures
MW 14x10 / N38
| Object / Device | Limit (Gauss) / mT | Safe distance |
|---|---|---|
| Pacemaker | 5 Gs (0.5 mT) | 8.0 cm |
| Hearing aid | 10 Gs (1.0 mT) | 6.5 cm |
| Timepiece | 20 Gs (2.0 mT) | 5.0 cm |
| Phone / Smartphone | 40 Gs (4.0 mT) | 4.0 cm |
| Remote | 50 Gs (5.0 mT) | 3.5 cm |
| Payment card | 400 Gs (40.0 mT) | 1.5 cm |
| HDD hard drive | 600 Gs (60.0 mT) | 1.5 cm |
Table 8: Impact energy (cracking risk) - collision effects
MW 14x10 / N38
| Start from (mm) | Speed (km/h) | Energy (J) | Predicted outcome |
|---|---|---|---|
| 10 mm |
20.16 km/h
(5.60 m/s)
|
0.18 J | |
| 30 mm |
20.44 km/h
(5.68 m/s)
|
0.19 J | |
| 50 mm |
20.44 km/h
(5.68 m/s)
|
0.19 J | |
| 100 mm |
20.44 km/h
(5.68 m/s)
|
0.19 J |
Table 9: Coating parameters (durability)
MW 14x10 / 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 14x10 / N38
| Parameter | Value | SI Unit / Description |
|---|---|---|
| Magnetic Flux | 7 886 Mx | 78.9 µWb |
| Pc Coefficient | 0.74 | High (Stable) |
Table 11: Underwater work (magnet fishing)
MW 14x10 / N38
| Environment | Effective steel pull | Effect |
|---|---|---|
| Air (land) | 6.71 kg | Standard |
| Water (riverbed) |
7.68 kg
(+0.97 kg buoyancy gain)
|
+14.5% |
1. Vertical hold
*Note: On a vertical wall, the magnet retains just a fraction of its nominal pull.
2. Steel thickness impact
*Thin steel (e.g. 0.5mm PC case) severely weakens the holding force.
3. Heat tolerance
*For N38 grade, the critical limit is 80°C.
4. Demagnetization curve and operating point (B-H)
chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.74
The chart above illustrates the magnetic characteristics of the material within the second quadrant of the hysteresis loop. 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 |
Other deals
Strengths and weaknesses of neodymium magnets.
Advantages
- They have constant strength, and over nearly ten years their attraction force decreases symbolically – ~1% (in testing),
- Magnets effectively protect themselves against loss of magnetization caused by ambient magnetic noise,
- The use of an shiny coating of noble metals (nickel, gold, silver) causes the element to have aesthetics,
- The surface of neodymium magnets generates a concentrated magnetic field – this is one of their assets,
- Neodymium magnets are characterized by very high magnetic induction on the magnet surface and can work (depending on the form) even at a temperature of 230°C or more...
- Possibility of precise creating as well as adjusting to specific applications,
- Huge importance in modern industrial fields – they serve a role in mass storage devices, electromotive mechanisms, precision medical tools, also other advanced devices.
- Compactness – despite small sizes they provide effective action, making them ideal for precision applications
Disadvantages
- Susceptibility to cracking is one of their disadvantages. Upon intense impact they can break. We advise keeping them in a strong case, which not only protects them against impacts but also increases their durability
- Neodymium magnets lose their strength under the influence of heating. As soon as 80°C is exceeded, many of them start losing their force. Therefore, we recommend our special magnets marked [AH], which maintain stability even at temperatures up to 230°C
- Due to the susceptibility of magnets to corrosion in a humid environment, we recommend using waterproof magnets made of rubber, plastic or other material stable to moisture, when using outdoors
- Due to limitations in creating threads and complex shapes in magnets, we propose using cover - magnetic holder.
- Health risk related to microscopic parts of magnets pose a threat, in case of ingestion, which gains importance in the context of child health protection. Additionally, tiny parts of these devices can disrupt the diagnostic process medical after entering the body.
- High unit price – neodymium magnets have a higher price than other types of magnets (e.g. ferrite), which increases costs of application in large quantities
Holding force characteristics
Breakaway strength of the magnet in ideal conditions – what contributes to it?
- using a base made of low-carbon steel, functioning as a circuit closing element
- with a cross-section no less than 10 mm
- with a surface free of scratches
- without the slightest clearance between the magnet and steel
- for force applied at a right angle (in the magnet axis)
- at temperature approx. 20 degrees Celsius
Determinants of practical lifting force of a magnet
- Distance – existence of any layer (paint, tape, air) acts as an insulator, which lowers power steeply (even by 50% at 0.5 mm).
- Load vector – highest force is reached only during perpendicular pulling. The shear force of the magnet along the surface is standardly several times lower (approx. 1/5 of the lifting capacity).
- Element thickness – to utilize 100% power, the steel must be adequately massive. Paper-thin metal limits the lifting capacity (the magnet "punches through" it).
- Metal type – not every steel reacts the same. High carbon content weaken the attraction effect.
- Surface condition – ground elements ensure maximum contact, which increases force. Uneven metal weaken the grip.
- Temperature influence – hot environment weakens pulling force. Exceeding the limit temperature can permanently damage the magnet.
Lifting capacity was assessed with the use of a smooth steel plate of optimal thickness (min. 20 mm), under perpendicular pulling force, whereas under parallel forces the holding force is lower. Moreover, even a slight gap between the magnet’s surface and the plate decreases the holding force.
Safe handling of NdFeB magnets
Safe distance
Intense magnetic fields can erase data on payment cards, hard drives, and other magnetic media. Stay away of min. 10 cm.
Beware of splinters
Despite metallic appearance, the material is brittle and cannot withstand shocks. Do not hit, as the magnet may crumble into hazardous fragments.
Fire warning
Drilling and cutting of NdFeB material carries a risk of fire hazard. Magnetic powder reacts violently with oxygen and is hard to extinguish.
GPS and phone interference
A strong magnetic field negatively affects the functioning of compasses in phones and navigation systems. Do not bring magnets close to a device to avoid breaking the sensors.
Sensitization to coating
Nickel alert: The Ni-Cu-Ni coating consists of nickel. If skin irritation appears, cease working with magnets and wear gloves.
Adults only
These products are not intended for children. Swallowing a few magnets can lead to them connecting inside the digestive tract, which constitutes a severe health hazard and necessitates urgent medical intervention.
Immense force
Before starting, check safety instructions. Sudden snapping can destroy the magnet or injure your hand. Be predictive.
Operating temperature
Watch the temperature. Heating the magnet to high heat will ruin its properties and strength.
Serious injuries
Mind your fingers. Two large magnets will join immediately with a force of massive weight, crushing anything in their path. Be careful!
Medical implants
Health Alert: Neodymium magnets can deactivate pacemakers and defibrillators. Do not approach if you have medical devices.
