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
Load capacity
6.71 kg / 65.83 N
Magnetic Induction
507.48 mT / 5075 Gs
Coating
[NiCuNi] Nickel
6.84 ZŁ with VAT / pcs + price for transport
5.56 ZŁ net + 23% VAT / pcs
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Detailed specification - 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 |
|---|---|---|
| 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 simulation of the product - data
Presented information represent the outcome of a engineering simulation. Values rely on algorithms for the material Nd2Fe14B. Operational performance may differ from theoretical values. Please consider these data as a supplementary guide when designing systems.
Table 1: Static pull force (force vs gap) - 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
|
strong |
| 1 mm |
4354 Gs
435.4 mT
|
4.94 kg / 10.90 pounds
4944.4 g / 48.5 N
|
strong |
| 2 mm |
3652 Gs
365.2 mT
|
3.48 kg / 7.67 pounds
3479.0 g / 34.1 N
|
strong |
| 3 mm |
3017 Gs
301.7 mT
|
2.37 kg / 5.23 pounds
2373.5 g / 23.3 N
|
strong |
| 5 mm |
2015 Gs
201.5 mT
|
1.06 kg / 2.33 pounds
1058.7 g / 10.4 N
|
safe |
| 10 mm |
773 Gs
77.3 mT
|
0.16 kg / 0.34 pounds
155.7 g / 1.5 N
|
safe |
| 15 mm |
352 Gs
35.2 mT
|
0.03 kg / 0.07 pounds
32.3 g / 0.3 N
|
safe |
| 20 mm |
186 Gs
18.6 mT
|
0.01 kg / 0.02 pounds
9.0 g / 0.1 N
|
safe |
| 30 mm |
69 Gs
6.9 mT
|
0.00 kg / 0.00 pounds
1.3 g / 0.0 N
|
safe |
| 50 mm |
18 Gs
1.8 mT
|
0.00 kg / 0.00 pounds
0.1 g / 0.0 N
|
safe |
Table 2: Vertical force (wall)
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) - vertical pull
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: Material efficiency (saturation) - 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: Working in heat (material behavior) - power drop
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) - forces in the system
MW 14x10 / N38
| Gap (mm) | Attraction (kg/lbs) (N-S) | Shear Force (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 (implants) - 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: Collisions (cracking risk) - warning
MW 14x10 / N38
| Start from (mm) | Speed (km/h) | Energy (J) | Predicted outcome |
|---|---|---|---|
| 10 mm |
24.66 km/h
(6.85 m/s)
|
0.27 J | |
| 30 mm |
42.11 km/h
(11.70 m/s)
|
0.79 J | |
| 50 mm |
54.36 km/h
(15.10 m/s)
|
1.32 J | |
| 100 mm |
76.87 km/h
(21.35 m/s)
|
2.63 J |
Table 9: Corrosion resistance
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: Electrical data (Flux)
MW 14x10 / N38
| Parameter | Value | SI Unit / Description |
|---|---|---|
| Magnetic Flux | 7 886 Mx | 78.9 µWb |
| Pc Coefficient | 0.74 | High (Stable) |
Table 11: Physics of underwater searching
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. Shear force
*Warning: On a vertical surface, the magnet retains merely ~20% of its perpendicular strength.
2. Steel saturation
*Thin steel (e.g. 0.5mm PC case) severely reduces the holding force.
3. Power loss vs temp
*For N38 material, 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.
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 offers
Pros and cons of rare earth magnets.
Benefits
- They retain full power for nearly ten years – the drop is just ~1% (in theory),
- They possess excellent resistance to magnetism drop when exposed to opposing magnetic fields,
- The use of an aesthetic finish of noble metals (nickel, gold, silver) causes the element to have aesthetics,
- Neodymium magnets deliver maximum magnetic induction on a contact point, which increases force concentration,
- Through (appropriate) combination of ingredients, they can achieve high thermal strength, enabling operation at temperatures reaching 230°C and above...
- Considering the potential of free molding and adaptation to unique solutions, magnetic components can be modeled in a broad palette of geometric configurations, which makes them more universal,
- Versatile presence in future technologies – they are utilized in HDD drives, electric drive systems, medical devices, also modern systems.
- Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in small dimensions, which enables their usage in small systems
Disadvantages
- At very strong impacts they can crack, therefore we recommend placing them in steel cases. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
- We warn that neodymium magnets can reduce their strength at high temperatures. To prevent this, we recommend our specialized [AH] magnets, which work effectively even at 230°C.
- Magnets exposed to a humid environment can corrode. Therefore while using outdoors, we recommend using waterproof magnets made of rubber, plastic or other material protecting against moisture
- We suggest casing - magnetic holder, due to difficulties in creating threads inside the magnet and complicated forms.
- Possible danger resulting from small fragments of magnets pose a threat, if swallowed, which becomes key in the context of child health protection. Additionally, small components of these magnets are able to complicate diagnosis medical after entering the body.
- Due to complex production process, their price is relatively high,
Lifting parameters
Maximum lifting force for a neodymium magnet – what affects it?
- on a block made of structural steel, perfectly concentrating the magnetic flux
- possessing a massiveness of at least 10 mm to ensure full flux closure
- with an ground touching surface
- under conditions of no distance (metal-to-metal)
- for force acting at a right angle (in the magnet axis)
- at ambient temperature room level
Magnet lifting force in use – key factors
- Space between magnet and steel – even a fraction of a millimeter of distance (caused e.g. by varnish or dirt) diminishes the pulling force, often by half at just 0.5 mm.
- Force direction – remember that the magnet holds strongest perpendicularly. Under shear forces, the holding force drops significantly, often to levels of 20-30% of the maximum value.
- Substrate thickness – for full efficiency, the steel must be adequately massive. Paper-thin metal restricts the lifting capacity (the magnet "punches through" it).
- Chemical composition of the base – low-carbon steel gives the best results. Higher carbon content reduce magnetic properties and holding force.
- Surface finish – ideal contact is possible only on polished steel. Any scratches and bumps create air cushions, weakening the magnet.
- Heat – neodymium magnets have a sensitivity to temperature. When it is hot they are weaker, and in frost gain strength (up to a certain limit).
Lifting capacity testing was carried out on plates with a smooth surface of suitable thickness, under perpendicular forces, however under attempts to slide the magnet the holding force is lower. Additionally, even a small distance between the magnet’s surface and the plate reduces the load capacity.
Warnings
Powerful field
Be careful. Neodymium magnets act from a long distance and snap with huge force, often faster than you can react.
No play value
Only for adults. Tiny parts pose a choking risk, causing serious injuries. Keep out of reach of children and animals.
Finger safety
Big blocks can crush fingers in a fraction of a second. Do not place your hand between two attracting surfaces.
Medical implants
Medical warning: Neodymium magnets can turn off pacemakers and defibrillators. Stay away if you have electronic implants.
Do not overheat magnets
Watch the temperature. Heating the magnet to high heat will destroy its magnetic structure and strength.
Keep away from electronics
Remember: rare earth magnets generate a field that confuses sensitive sensors. Maintain a separation from your mobile, tablet, and GPS.
Nickel allergy
Warning for allergy sufferers: The Ni-Cu-Ni coating consists of nickel. If skin irritation happens, immediately stop working with magnets and use protective gear.
Magnetic media
Very strong magnetic fields can destroy records on payment cards, hard drives, and storage devices. Stay away of at least 10 cm.
Magnet fragility
NdFeB magnets are sintered ceramics, meaning they are fragile like glass. Clashing of two magnets will cause them shattering into shards.
Dust explosion hazard
Combustion risk: Neodymium dust is highly flammable. Avoid machining magnets in home conditions as this may cause fire.
