MW 10x1.5 / N38 - cylindrical magnet
cylindrical magnet
Catalog no 010003
GTIN/EAN: 5906301810001
Diameter Ø
10 mm [±0,1 mm]
Height
1.5 mm [±0,1 mm]
Weight
0.88 g
Magnetization Direction
↑ axial
Load capacity
0.82 kg / 8.01 N
Magnetic Induction
178.06 mT / 1781 Gs
Coating
[NiCuNi] Nickel
0.431 ZŁ with VAT / pcs + price for transport
0.350 ZŁ net + 23% VAT / pcs
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Technical details - MW 10x1.5 / N38 - cylindrical magnet
Specification / characteristics - MW 10x1.5 / N38 - cylindrical magnet
| properties | values |
|---|---|
| Cat. no. | 010003 |
| GTIN/EAN | 5906301810001 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 10 mm [±0,1 mm] |
| Height | 1.5 mm [±0,1 mm] |
| Weight | 0.88 g |
| Magnetization Direction | ↑ axial |
| Load capacity ~ ? | 0.82 kg / 8.01 N |
| Magnetic Induction ~ ? | 178.06 mT / 1781 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 - report
These information represent the outcome of a mathematical simulation. Results are based on algorithms for the material Nd2Fe14B. Real-world parameters may differ. Treat these data as a supplementary guide for designers.
Table 1: Static force (pull vs distance) - characteristics
MW 10x1.5 / N38
| Distance (mm) | Induction (Gauss) / mT | Pull Force (kg/lbs/g/N) | Risk Status |
|---|---|---|---|
| 0 mm |
1780 Gs
178.0 mT
|
0.82 kg / 1.81 pounds
820.0 g / 8.0 N
|
safe |
| 1 mm |
1557 Gs
155.7 mT
|
0.63 kg / 1.38 pounds
627.2 g / 6.2 N
|
safe |
| 2 mm |
1253 Gs
125.3 mT
|
0.41 kg / 0.90 pounds
406.2 g / 4.0 N
|
safe |
| 3 mm |
958 Gs
95.8 mT
|
0.24 kg / 0.52 pounds
237.4 g / 2.3 N
|
safe |
| 5 mm |
530 Gs
53.0 mT
|
0.07 kg / 0.16 pounds
72.8 g / 0.7 N
|
safe |
| 10 mm |
140 Gs
14.0 mT
|
0.01 kg / 0.01 pounds
5.1 g / 0.1 N
|
safe |
| 15 mm |
52 Gs
5.2 mT
|
0.00 kg / 0.00 pounds
0.7 g / 0.0 N
|
safe |
| 20 mm |
24 Gs
2.4 mT
|
0.00 kg / 0.00 pounds
0.1 g / 0.0 N
|
safe |
| 30 mm |
8 Gs
0.8 mT
|
0.00 kg / 0.00 pounds
0.0 g / 0.0 N
|
safe |
| 50 mm |
2 Gs
0.2 mT
|
0.00 kg / 0.00 pounds
0.0 g / 0.0 N
|
safe |
Table 2: Sliding force (vertical surface)
MW 10x1.5 / N38
| Distance (mm) | Friction coefficient | Pull Force (kg/lbs/g/N) |
|---|---|---|
| 0 mm | Stal (~0.2) |
0.16 kg / 0.36 pounds
164.0 g / 1.6 N
|
| 1 mm | Stal (~0.2) |
0.13 kg / 0.28 pounds
126.0 g / 1.2 N
|
| 2 mm | Stal (~0.2) |
0.08 kg / 0.18 pounds
82.0 g / 0.8 N
|
| 3 mm | Stal (~0.2) |
0.05 kg / 0.11 pounds
48.0 g / 0.5 N
|
| 5 mm | Stal (~0.2) |
0.01 kg / 0.03 pounds
14.0 g / 0.1 N
|
| 10 mm | Stal (~0.2) |
0.00 kg / 0.00 pounds
2.0 g / 0.0 N
|
| 15 mm | Stal (~0.2) |
0.00 kg / 0.00 pounds
0.0 g / 0.0 N
|
| 20 mm | Stal (~0.2) |
0.00 kg / 0.00 pounds
0.0 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: Vertical assembly (sliding) - behavior on slippery surfaces
MW 10x1.5 / N38
| Surface type | Friction coefficient / % Mocy | Max load (kg/lbs/g/N) |
|---|---|---|
| Raw steel |
µ = 0.3
30% Nominalnej Siły
|
0.25 kg / 0.54 pounds
246.0 g / 2.4 N
|
| Painted steel (standard) |
µ = 0.2
20% Nominalnej Siły
|
0.16 kg / 0.36 pounds
164.0 g / 1.6 N
|
| Oily/slippery steel |
µ = 0.1
10% Nominalnej Siły
|
0.08 kg / 0.18 pounds
82.0 g / 0.8 N
|
| Magnet with anti-slip rubber |
µ = 0.5
50% Nominalnej Siły
|
0.41 kg / 0.90 pounds
410.0 g / 4.0 N
|
Table 4: Steel thickness (saturation) - sheet metal selection
MW 10x1.5 / N38
| Steel thickness (mm) | % power | Real pull force (kg/lbs/g/N) |
|---|---|---|
| 0.5 mm |
|
0.08 kg / 0.18 pounds
82.0 g / 0.8 N
|
| 1 mm |
|
0.21 kg / 0.45 pounds
205.0 g / 2.0 N
|
| 2 mm |
|
0.41 kg / 0.90 pounds
410.0 g / 4.0 N
|
| 3 mm |
|
0.62 kg / 1.36 pounds
615.0 g / 6.0 N
|
| 5 mm |
|
0.82 kg / 1.81 pounds
820.0 g / 8.0 N
|
| 10 mm |
|
0.82 kg / 1.81 pounds
820.0 g / 8.0 N
|
| 11 mm |
|
0.82 kg / 1.81 pounds
820.0 g / 8.0 N
|
| 12 mm |
|
0.82 kg / 1.81 pounds
820.0 g / 8.0 N
|
Table 5: Thermal stability (stability) - thermal limit
MW 10x1.5 / N38
| Ambient temp. (°C) | Power loss | Remaining pull (kg/lbs/g/N) | Status |
|---|---|---|---|
| 20 °C | 0.0% |
0.82 kg / 1.81 pounds
820.0 g / 8.0 N
|
OK |
| 40 °C | -2.2% |
0.80 kg / 1.77 pounds
802.0 g / 7.9 N
|
OK |
| 60 °C | -4.4% |
0.78 kg / 1.73 pounds
783.9 g / 7.7 N
|
|
| 80 °C | -6.6% |
0.77 kg / 1.69 pounds
765.9 g / 7.5 N
|
|
| 100 °C | -28.8% |
0.58 kg / 1.29 pounds
583.8 g / 5.7 N
|
Table 6: Two magnets (attraction) - field range
MW 10x1.5 / N38
| Gap (mm) | Attraction (kg/lbs) (N-S) | Lateral Force (kg/lbs/g/N) | Repulsion (kg/lbs) (N-N) |
|---|---|---|---|
| 0 mm |
1.53 kg / 3.38 pounds
3 185 Gs
|
0.23 kg / 0.51 pounds
230 g / 2.3 N
|
N/A |
| 1 mm |
1.38 kg / 3.03 pounds
3 371 Gs
|
0.21 kg / 0.45 pounds
206 g / 2.0 N
|
1.24 kg / 2.73 pounds
~0 Gs
|
| 2 mm |
1.17 kg / 2.59 pounds
3 114 Gs
|
0.18 kg / 0.39 pounds
176 g / 1.7 N
|
1.06 kg / 2.33 pounds
~0 Gs
|
| 3 mm |
0.96 kg / 2.12 pounds
2 817 Gs
|
0.14 kg / 0.32 pounds
144 g / 1.4 N
|
0.86 kg / 1.91 pounds
~0 Gs
|
| 5 mm |
0.59 kg / 1.29 pounds
2 201 Gs
|
0.09 kg / 0.19 pounds
88 g / 0.9 N
|
0.53 kg / 1.16 pounds
~0 Gs
|
| 10 mm |
0.14 kg / 0.30 pounds
1 060 Gs
|
0.02 kg / 0.05 pounds
20 g / 0.2 N
|
0.12 kg / 0.27 pounds
~0 Gs
|
| 20 mm |
0.01 kg / 0.02 pounds
281 Gs
|
0.00 kg / 0.00 pounds
1 g / 0.0 N
|
0.00 kg / 0.00 pounds
~0 Gs
|
| 50 mm |
0.00 kg / 0.00 pounds
26 Gs
|
0.00 kg / 0.00 pounds
0 g / 0.0 N
|
0.00 kg / 0.00 pounds
~0 Gs
|
| 60 mm |
0.00 kg / 0.00 pounds
15 Gs
|
0.00 kg / 0.00 pounds
0 g / 0.0 N
|
0.00 kg / 0.00 pounds
~0 Gs
|
| 70 mm |
0.00 kg / 0.00 pounds
10 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
7 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
5 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
4 Gs
|
0.00 kg / 0.00 pounds
0 g / 0.0 N
|
0.00 kg / 0.00 pounds
~0 Gs
|
Table 7: Safety (HSE) (electronics) - warnings
MW 10x1.5 / N38
| Object / Device | Limit (Gauss) / mT | Safe distance |
|---|---|---|
| Pacemaker | 5 Gs (0.5 mT) | 3.5 cm |
| Hearing aid | 10 Gs (1.0 mT) | 3.0 cm |
| Timepiece | 20 Gs (2.0 mT) | 2.5 cm |
| Phone / Smartphone | 40 Gs (4.0 mT) | 2.0 cm |
| Remote | 50 Gs (5.0 mT) | 2.0 cm |
| Payment card | 400 Gs (40.0 mT) | 1.0 cm |
| HDD hard drive | 600 Gs (60.0 mT) | 0.5 cm |
Table 8: Impact energy (cracking risk) - collision effects
MW 10x1.5 / N38
| Start from (mm) | Speed (km/h) | Energy (J) | Predicted outcome |
|---|---|---|---|
| 10 mm |
30.91 km/h
(8.58 m/s)
|
0.03 J | |
| 30 mm |
53.32 km/h
(14.81 m/s)
|
0.10 J | |
| 50 mm |
68.84 km/h
(19.12 m/s)
|
0.16 J | |
| 100 mm |
97.35 km/h
(27.04 m/s)
|
0.32 J |
Table 9: Surface protection spec
MW 10x1.5 / 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 10x1.5 / N38
| Parameter | Value | SI Unit / Description |
|---|---|---|
| Magnetic Flux | 1 717 Mx | 17.2 µWb |
| Pc Coefficient | 0.22 | Low (Flat) |
Table 11: Physics of underwater searching
MW 10x1.5 / N38
| Environment | Effective steel pull | Effect |
|---|---|---|
| Air (land) | 0.82 kg | Standard |
| Water (riverbed) |
0.94 kg
(+0.12 kg buoyancy gain)
|
+14.5% |
1. Sliding resistance
*Caution: On a vertical surface, the magnet holds just ~20% of its perpendicular strength.
2. Efficiency vs thickness
*Thin metal sheet (e.g. 0.5mm PC case) significantly limits the holding force.
3. Heat tolerance
*For standard magnets, the safety limit 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 |
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Pros and cons of Nd2Fe14B magnets.
Benefits
- They have stable power, and over more than 10 years their performance decreases symbolically – ~1% (according to theory),
- They possess excellent resistance to weakening of magnetic properties as a result of opposing magnetic fields,
- A magnet with a shiny silver surface has better aesthetics,
- Magnets have maximum magnetic induction on the outer side,
- Due to their durability and thermal resistance, neodymium magnets can operate (depending on the form) even at high temperatures reaching 230°C or more...
- In view of the option of free shaping and customization to custom solutions, neodymium magnets can be modeled in a variety of geometric configurations, which makes them more universal,
- Universal use in modern industrial fields – they find application in magnetic memories, drive modules, advanced medical instruments, also other advanced devices.
- Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in tiny dimensions, which makes them useful in small systems
Cons
- To avoid cracks upon strong impacts, we suggest using special steel housings. Such a solution protects the magnet and simultaneously increases its durability.
- Neodymium magnets decrease their power under the influence of heating. As soon as 80°C is exceeded, many of them start losing their power. Therefore, we recommend our special magnets marked [AH], which maintain stability even at temperatures up to 230°C
- They rust in a humid environment. For use outdoors we recommend using waterproof magnets e.g. in rubber, plastic
- Due to limitations in realizing nuts and complicated shapes in magnets, we propose using cover - magnetic mechanism.
- Health risk to health – tiny shards of magnets pose a threat, when accidentally swallowed, which gains importance in the aspect of protecting the youngest. It is also worth noting that small elements of these devices can disrupt the diagnostic process medical when they are in the body.
- With budget limitations the cost of neodymium magnets can be a barrier,
Lifting parameters
Best holding force of the magnet in ideal parameters – what it depends on?
- on a plate made of structural steel, perfectly concentrating the magnetic flux
- possessing a massiveness of minimum 10 mm to avoid saturation
- with an polished contact surface
- without the slightest insulating layer between the magnet and steel
- under axial force vector (90-degree angle)
- at temperature approx. 20 degrees Celsius
What influences lifting capacity in practice
- Space between surfaces – even a fraction of a millimeter of distance (caused e.g. by varnish or unevenness) drastically reduces the magnet efficiency, often by half at just 0.5 mm.
- Direction of force – maximum parameter is reached only during perpendicular pulling. The force required to slide of the magnet along the surface is usually many times lower (approx. 1/5 of the lifting capacity).
- Substrate thickness – to utilize 100% power, the steel must be adequately massive. Thin sheet restricts the attraction force (the magnet "punches through" it).
- Metal type – not every steel reacts the same. Alloy additives worsen the attraction effect.
- Smoothness – full contact is obtained only on polished steel. Rough texture create air cushions, weakening the magnet.
- Thermal environment – temperature increase results in weakening of force. Check the maximum operating temperature for a given model.
Lifting capacity testing was performed on plates with a smooth surface of optimal thickness, under perpendicular forces, whereas under shearing force the holding force is lower. Moreover, even a slight gap between the magnet and the plate reduces the lifting capacity.
Precautions when working with NdFeB magnets
Safe distance
Data protection: Neodymium magnets can damage payment cards and delicate electronics (pacemakers, hearing aids, timepieces).
Handling guide
Before starting, check safety instructions. Uncontrolled attraction can destroy the magnet or hurt your hand. Think ahead.
Serious injuries
Large magnets can break fingers in a fraction of a second. Under no circumstances place your hand between two strong magnets.
No play value
Only for adults. Tiny parts pose a choking risk, causing intestinal necrosis. Store away from kids and pets.
Shattering risk
Despite the nickel coating, neodymium is delicate and cannot withstand shocks. Do not hit, as the magnet may shatter into hazardous fragments.
Warning for allergy sufferers
Nickel alert: The Ni-Cu-Ni coating consists of nickel. If redness happens, immediately stop handling magnets and use protective gear.
Health Danger
Medical warning: Strong magnets can turn off pacemakers and defibrillators. Stay away if you have medical devices.
Dust explosion hazard
Powder created during machining of magnets is flammable. Do not drill into magnets without proper cooling and knowledge.
GPS Danger
GPS units and mobile phones are highly susceptible to magnetism. Direct contact with a powerful NdFeB magnet can permanently damage the internal compass in your phone.
Maximum temperature
Regular neodymium magnets (N-type) lose power when the temperature goes above 80°C. The loss of strength is permanent.
