MW 14x2 / N38 - cylindrical magnet
cylindrical magnet
Catalog no 010024
GTIN/EAN: 5906301810230
- Diameter Ø
- 14 mm [±0,1 mm]
- Height
- 2 mm [±0,1 mm]
- Weight
- 2.31 g
- Magnetization Direction
- ↑ axial
- Coating
- [NiCuNi] Nickel
How we measure these parameters — certificates and measurements
0.730 zł net / pcs
0.898 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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Technical details - MW 14x2 / N38 - cylindrical magnet
Specification / characteristics - MW 14x2 / N38 - cylindrical magnet
| properties | values |
|---|---|
| Cat. no. | 010024 |
| GTIN/EAN | 5906301810230 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 14 mm [±0,1 mm] |
| Height | 2 mm [±0,1 mm] |
| Weight | 2.31 g |
| Magnetization Direction | ↑ axial |
| Load capacity ~ ? | 1.48 kg / 14.51 N |
| Magnetic Induction ~ ? | 170.27 mT / 1703 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 |
Engineering simulation of the product - data
The following data represent the direct effect of a engineering simulation. Results were calculated on models for the material Nd2Fe14B. Operational conditions might slightly deviate from the simulation results. Please consider these data as a preliminary roadmap when designing systems.
Table 1: Static pull force (pull vs distance) - characteristics
MW 14x2 / N38
| Distance (mm) | Induction (Gauss) / mT | Pull Force (kg/lbs/g/N) | Risk Status |
|---|---|---|---|
| 0 mm |
1702 Gs
170.2 mT
|
1.48 kg / 3.26 LBS
1480.0 g / 14.5 N
|
safe |
| 1 mm |
1565 Gs
156.5 mT
|
1.25 kg / 2.76 LBS
1251.7 g / 12.3 N
|
safe |
| 2 mm |
1373 Gs
137.3 mT
|
0.96 kg / 2.12 LBS
962.5 g / 9.4 N
|
safe |
| 3 mm |
1161 Gs
116.1 mT
|
0.69 kg / 1.52 LBS
688.9 g / 6.8 N
|
safe |
| 5 mm |
780 Gs
78.0 mT
|
0.31 kg / 0.69 LBS
311.0 g / 3.1 N
|
safe |
| 10 mm |
276 Gs
27.6 mT
|
0.04 kg / 0.09 LBS
39.0 g / 0.4 N
|
safe |
| 15 mm |
115 Gs
11.5 mT
|
0.01 kg / 0.01 LBS
6.7 g / 0.1 N
|
safe |
| 20 mm |
56 Gs
5.6 mT
|
0.00 kg / 0.00 LBS
1.6 g / 0.0 N
|
safe |
| 30 mm |
19 Gs
1.9 mT
|
0.00 kg / 0.00 LBS
0.2 g / 0.0 N
|
safe |
| 50 mm |
4 Gs
0.4 mT
|
0.00 kg / 0.00 LBS
0.0 g / 0.0 N
|
safe |
Table 2: Slippage capacity (vertical surface)
MW 14x2 / N38
| Distance (mm) | Friction coefficient | Pull Force (kg/lbs/g/N) |
|---|---|---|
| 0 mm | Stal (~0.2) |
0.30 kg / 0.65 LBS
296.0 g / 2.9 N
|
| 1 mm | Stal (~0.2) |
0.25 kg / 0.55 LBS
250.0 g / 2.5 N
|
| 2 mm | Stal (~0.2) |
0.19 kg / 0.42 LBS
192.0 g / 1.9 N
|
| 3 mm | Stal (~0.2) |
0.14 kg / 0.30 LBS
138.0 g / 1.4 N
|
| 5 mm | Stal (~0.2) |
0.06 kg / 0.14 LBS
62.0 g / 0.6 N
|
| 10 mm | Stal (~0.2) |
0.01 kg / 0.02 LBS
8.0 g / 0.1 N
|
| 15 mm | Stal (~0.2) |
0.00 kg / 0.00 LBS
2.0 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: Wall mounting (shearing) - vertical pull
MW 14x2 / N38
| Surface type | Friction coefficient / % Mocy | Max load (kg/lbs/g/N) |
|---|---|---|
| Raw steel |
µ = 0.3
30% Nominalnej Siły
|
0.44 kg / 0.98 LBS
444.0 g / 4.4 N
|
| Painted steel (standard) |
µ = 0.2
20% Nominalnej Siły
|
0.30 kg / 0.65 LBS
296.0 g / 2.9 N
|
| Oily/slippery steel |
µ = 0.1
10% Nominalnej Siły
|
0.15 kg / 0.33 LBS
148.0 g / 1.5 N
|
| Magnet with anti-slip rubber |
µ = 0.5
50% Nominalnej Siły
|
0.74 kg / 1.63 LBS
740.0 g / 7.3 N
|
Table 4: Steel thickness (substrate influence) - sheet metal selection
MW 14x2 / N38
| Steel thickness (mm) | % power | Real pull force (kg/lbs/g/N) |
|---|---|---|
| 0.5 mm |
|
0.15 kg / 0.33 LBS
148.0 g / 1.5 N
|
| 1 mm |
|
0.37 kg / 0.82 LBS
370.0 g / 3.6 N
|
| 2 mm |
|
0.74 kg / 1.63 LBS
740.0 g / 7.3 N
|
| 3 mm |
|
1.11 kg / 2.45 LBS
1110.0 g / 10.9 N
|
| 5 mm |
|
1.48 kg / 3.26 LBS
1480.0 g / 14.5 N
|
| 10 mm |
|
1.48 kg / 3.26 LBS
1480.0 g / 14.5 N
|
| 11 mm |
|
1.48 kg / 3.26 LBS
1480.0 g / 14.5 N
|
| 12 mm |
|
1.48 kg / 3.26 LBS
1480.0 g / 14.5 N
|
Table 5: Working in heat (material behavior) - resistance threshold
MW 14x2 / N38
| Ambient temp. (°C) | Power loss | Remaining pull (kg/lbs/g/N) | Status |
|---|---|---|---|
| 20 °C | 0.0% |
1.48 kg / 3.26 LBS
1480.0 g / 14.5 N
|
OK |
| 40 °C | -2.2% |
1.45 kg / 3.19 LBS
1447.4 g / 14.2 N
|
OK |
| 60 °C | -4.4% |
1.41 kg / 3.12 LBS
1414.9 g / 13.9 N
|
|
| 80 °C | -6.6% |
1.38 kg / 3.05 LBS
1382.3 g / 13.6 N
|
|
| 100 °C | -28.8% |
1.05 kg / 2.32 LBS
1053.8 g / 10.3 N
|
Table 6: Two magnets (repulsion) - forces in the system
MW 14x2 / N38
| Gap (mm) | Attraction (kg/lbs) (N-S) | Lateral Force (kg/lbs/g/N) | Repulsion (kg/lbs) (N-N) |
|---|---|---|---|
| 0 mm |
2.75 kg / 6.06 LBS
3 073 Gs
|
0.41 kg / 0.91 LBS
413 g / 4.0 N
|
N/A |
| 1 mm |
2.56 kg / 5.65 LBS
3 287 Gs
|
0.38 kg / 0.85 LBS
385 g / 3.8 N
|
2.31 kg / 5.09 LBS
~0 Gs
|
| 2 mm |
2.33 kg / 5.13 LBS
3 131 Gs
|
0.35 kg / 0.77 LBS
349 g / 3.4 N
|
2.09 kg / 4.61 LBS
~0 Gs
|
| 3 mm |
2.06 kg / 4.54 LBS
2 947 Gs
|
0.31 kg / 0.68 LBS
309 g / 3.0 N
|
1.85 kg / 4.09 LBS
~0 Gs
|
| 5 mm |
1.52 kg / 3.36 LBS
2 535 Gs
|
0.23 kg / 0.50 LBS
229 g / 2.2 N
|
1.37 kg / 3.02 LBS
~0 Gs
|
| 10 mm |
0.58 kg / 1.27 LBS
1 561 Gs
|
0.09 kg / 0.19 LBS
87 g / 0.9 N
|
0.52 kg / 1.15 LBS
~0 Gs
|
| 20 mm |
0.07 kg / 0.16 LBS
552 Gs
|
0.01 kg / 0.02 LBS
11 g / 0.1 N
|
0.07 kg / 0.14 LBS
~0 Gs
|
| 50 mm |
0.00 kg / 0.00 LBS
62 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
38 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
25 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
17 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
12 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
9 Gs
|
0.00 kg / 0.00 LBS
0 g / 0.0 N
|
0.00 kg / 0.00 LBS
~0 Gs
|
Table 7: Hazards (implants) - precautionary measures
MW 14x2 / N38
| Object / Device | Limit (Gauss) / mT | Safe distance |
|---|---|---|
| Pacemaker | 5 Gs (0.5 mT) | 5.0 cm |
| Hearing aid | 10 Gs (1.0 mT) | 4.0 cm |
| Mechanical watch | 20 Gs (2.0 mT) | 3.0 cm |
| Phone / Smartphone | 40 Gs (4.0 mT) | 2.5 cm |
| Remote | 50 Gs (5.0 mT) | 2.5 cm |
| Payment card | 400 Gs (40.0 mT) | 1.0 cm |
| HDD hard drive | 600 Gs (60.0 mT) | 1.0 cm |
Table 8: Impact energy (cracking risk) - collision effects
MW 14x2 / N38
| Start from (mm) | Speed (km/h) | Energy (J) | Predicted outcome |
|---|---|---|---|
| 10 mm |
23.25 km/h
(6.46 m/s)
|
0.05 J | |
| 30 mm |
23.52 km/h
(6.53 m/s)
|
0.05 J | |
| 50 mm |
23.52 km/h
(6.53 m/s)
|
0.05 J | |
| 100 mm |
23.52 km/h
(6.53 m/s)
|
0.05 J |
Table 9: Surface protection spec
MW 14x2 / 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 (Flux)
MW 14x2 / N38
| Parameter | Value | SI Unit / Description |
|---|---|---|
| Magnetic Flux | 3 247 Mx | 32.5 µWb |
| Pc Coefficient | 0.22 | Low (Flat) |
Table 11: Submerged application
MW 14x2 / N38
| Environment | Effective steel pull | Effect |
|---|---|---|
| Air (land) | 1.48 kg | Standard |
| Water (riverbed) |
1.69 kg
(+0.21 kg buoyancy gain)
|
+14.5% |
1. Sliding resistance
*Warning: On a vertical wall, the magnet holds only a fraction of its max power.
2. Efficiency vs thickness
*Thin metal sheet (e.g. computer case) drastically reduces the holding force.
3. Power loss vs temp
*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) = 0.22
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.
Elemental analysis
| 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 |
Other products
Advantages as well as disadvantages of rare earth magnets.
Benefits
- They virtually do not lose power, because even after ten years the decline in efficiency is only ~1% (based on calculations),
- They retain their magnetic properties even under external field action,
- By applying a decorative layer of silver, the element has an modern look,
- They feature high magnetic induction at the operating surface, making them more effective,
- Thanks to resistance to high temperature, they are able to function (depending on the form) even at temperatures up to 230°C and higher...
- Thanks to the possibility of free molding and adaptation to unique requirements, magnetic components can be created in a wide range of shapes and sizes, which expands the range of possible applications,
- Versatile presence in advanced technology sectors – they are commonly used in mass storage devices, electric motors, medical devices, also multitasking production systems.
- Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in small dimensions, which makes them useful in miniature devices
Limitations
- At strong impacts they can break, therefore we recommend placing them in strong housings. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
- NdFeB magnets lose power when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of strength (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 extremely resistant to heat
- When exposed to humidity, magnets usually rust. To use them in conditions outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which secure oxidation as well as corrosion.
- We recommend a housing - magnetic holder, due to difficulties in producing threads inside the magnet and complex shapes.
- Health risk to health – tiny shards of magnets can be dangerous, if swallowed, which is particularly important in the context of child health protection. Additionally, tiny parts of these products are able to disrupt the diagnostic process medical in case of swallowing.
- Due to expensive raw materials, their price is relatively high,
Pull force analysis
Magnetic strength at its maximum – what it depends on?
- on a block made of mild steel, effectively closing the magnetic field
- possessing a massiveness of min. 10 mm to ensure full flux closure
- with an polished touching surface
- under conditions of gap-free contact (metal-to-metal)
- during pulling in a direction perpendicular to the mounting surface
- at ambient temperature approx. 20 degrees Celsius
Practical aspects of lifting capacity – factors
- Gap between surfaces – even a fraction of a millimeter of separation (caused e.g. by veneer or dirt) drastically reduces the magnet efficiency, often by half at just 0.5 mm.
- Load vector – highest force is reached only during perpendicular pulling. The resistance to sliding of the magnet along the surface is typically several times lower (approx. 1/5 of the lifting capacity).
- Base massiveness – insufficiently thick plate does not accept the full field, causing part of the flux to be escaped to the other side.
- Material type – the best choice is high-permeability steel. Stainless steels may have worse magnetic properties.
- Surface condition – ground elements guarantee perfect abutment, which increases force. Uneven metal reduce efficiency.
- Heat – neodymium magnets have a sensitivity to temperature. At higher temperatures they lose power, and in frost they can be stronger (up to a certain limit).
Holding force was checked on the plate surface of 20 mm thickness, when a perpendicular force was applied, whereas under shearing force the lifting capacity is smaller. Moreover, even a minimal clearance between the magnet’s surface and the plate lowers the holding force.
Warnings
Magnet fragility
NdFeB magnets are sintered ceramics, meaning they are prone to chipping. Collision of two magnets leads to them shattering into small pieces.
Precision electronics
An intense magnetic field interferes with the functioning of compasses in phones and navigation systems. Keep magnets close to a smartphone to avoid damaging the sensors.
Allergy Warning
Allergy Notice: The nickel-copper-nickel coating consists of nickel. If redness appears, cease handling magnets and use protective gear.
Warning for heart patients
Health Alert: Neodymium magnets can turn off pacemakers and defibrillators. Do not approach if you have electronic implants.
Heat warning
Regular neodymium magnets (N-type) lose power when the temperature goes above 80°C. The loss of strength is permanent.
Keep away from computers
Very strong magnetic fields can destroy records on payment cards, hard drives, and other magnetic media. Maintain a gap of at least 10 cm.
Bone fractures
Mind your fingers. Two large magnets will join instantly with a force of massive weight, crushing anything in their path. Be careful!
Handling guide
Handle magnets with awareness. Their huge power can shock even professionals. Plan your moves and respect their force.
Do not drill into magnets
Drilling and cutting of neodymium magnets carries a risk of fire hazard. Magnetic powder reacts violently with oxygen and is difficult to extinguish.
Choking Hazard
NdFeB magnets are not suitable for play. Eating multiple magnets can lead to them pinching intestinal walls, which constitutes a critical condition and necessitates urgent medical intervention.
