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
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Physical properties - 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 |
Technical analysis of the magnet - report
Presented data represent the outcome of a physical simulation. Results were calculated on models for the class Nd2Fe14B. Real-world conditions may differ from theoretical values. Treat these data as a preliminary roadmap when designing systems.
Table 1: Static force (pull vs gap) - characteristics
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
|
strong |
| 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: Shear hold (vertical surface)
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: Wall mounting (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 (substrate influence) - sheet metal selection
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) - power drop
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 (attraction) - field range
MW 10x15 / N38
| Gap (mm) | Attraction (kg/lbs) (N-S) | Shear Strength (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: Protective zones (implants) - precautionary measures
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: Impact energy (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: Surface protection spec
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 (Pc)
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. Sliding resistance
*Warning: On a vertical surface, the magnet holds merely approx. 20-30% of its perpendicular strength.
2. Steel saturation
*Thin metal sheet (e.g. computer case) drastically limits the holding force.
3. Heat tolerance
*For N38 grade, the safety limit 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% |
Environmental data
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
Other proposals
Pros as well as cons of rare earth magnets.
Strengths
- They retain attractive force for nearly 10 years – the loss is just ~1% (based on simulations),
- They are resistant to demagnetization induced by external field influence,
- The use of an shiny finish of noble metals (nickel, gold, silver) causes the element to look better,
- Magnetic induction on the top side of the magnet remains maximum,
- Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and can function (depending on the form) even at a temperature of 230°C or more...
- Possibility of exact machining as well as modifying to specific conditions,
- Huge importance in electronics industry – they are commonly used in HDD drives, electromotive mechanisms, precision medical tools, as well as complex engineering applications.
- Relatively small size with high pulling force – neodymium magnets offer high power in small dimensions, which makes them useful in miniature devices
Disadvantages
- They are prone to damage upon heavy impacts. To avoid cracks, it is worth protecting magnets using a steel holder. Such protection not only protects the magnet but also improves its resistance to damage
- When exposed to high temperature, neodymium magnets experience a drop in force. Often, when the temperature exceeds 80°C, their power decreases (depending on the size and shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
- Magnets exposed to a humid environment can rust. Therefore while using outdoors, we recommend using waterproof magnets made of rubber, plastic or other material resistant to moisture
- Due to limitations in realizing threads and complicated shapes in magnets, we recommend using cover - magnetic mount.
- Potential hazard resulting from small fragments of magnets can be dangerous, if swallowed, which gains importance in the context of child health protection. It is also worth noting that tiny parts of these devices can be problematic in diagnostics medical in case of swallowing.
- With mass production the cost of neodymium magnets is economically unviable,
Holding force characteristics
Magnetic strength at its maximum – what affects it?
- with the contact of a sheet made of special test steel, guaranteeing maximum field concentration
- whose transverse dimension reaches at least 10 mm
- characterized by smoothness
- without the slightest clearance between the magnet and steel
- during detachment in a direction perpendicular to the plane
- in neutral thermal conditions
Determinants of practical lifting force of a magnet
- Space between surfaces – every millimeter of separation (caused e.g. by veneer or dirt) significantly weakens the pulling force, often by half at just 0.5 mm.
- Loading method – catalog parameter refers to pulling vertically. When slipping, the magnet holds significantly lower power (often approx. 20-30% of maximum force).
- Wall thickness – the thinner the sheet, the weaker the hold. Part of the magnetic field penetrates through instead of converting into lifting capacity.
- Plate material – mild steel attracts best. Alloy steels lower magnetic permeability and lifting capacity.
- Smoothness – ideal contact is possible only on polished steel. Rough texture create air cushions, weakening the magnet.
- Temperature influence – hot environment reduces magnetic field. Exceeding the limit temperature can permanently damage the magnet.
Lifting capacity was assessed with the use of a steel plate with a smooth surface of suitable thickness (min. 20 mm), under perpendicular pulling force, however under parallel forces the lifting capacity is smaller. Additionally, even a minimal clearance between the magnet and the plate reduces the holding force.
Precautions when working with neodymium magnets
Adults only
These products are not intended for children. Eating multiple magnets may result in them pinching intestinal walls, which poses a direct threat to life and requires immediate surgery.
Data carriers
Equipment safety: Strong magnets can damage data carriers and sensitive devices (heart implants, hearing aids, mechanical watches).
Magnets are brittle
Watch out for shards. Magnets can explode upon violent connection, ejecting shards into the air. Wear goggles.
Do not overheat magnets
Standard neodymium magnets (grade N) undergo demagnetization when the temperature surpasses 80°C. The loss of strength is permanent.
Caution required
Before starting, check safety instructions. Sudden snapping can break the magnet or injure your hand. Think ahead.
Medical interference
Health Alert: Strong magnets can deactivate heart devices and defibrillators. Stay away if you have electronic implants.
Pinching danger
Protect your hands. Two large magnets will snap together instantly with a force of several hundred kilograms, destroying anything in their path. Be careful!
Flammability
Fire warning: Neodymium dust is explosive. Do not process magnets without safety gear as this risks ignition.
Allergy Warning
Certain individuals have a sensitization to Ni, which is the common plating for NdFeB magnets. Frequent touching can result in skin redness. We suggest wear safety gloves.
GPS Danger
An intense magnetic field interferes with the functioning of compasses in phones and navigation systems. Keep magnets close to a device to avoid breaking the sensors.
