MPL 10x4x1.5 / N38 - lamellar magnet
lamellar magnet
Catalog no 020113
GTIN/EAN: 5906301811190
length
10 mm [±0,1 mm]
Width
4 mm [±0,1 mm]
Height
1.5 mm [±0,1 mm]
Weight
0.45 g
Magnetization Direction
↑ axial
Load capacity
0.88 kg / 8.65 N
Magnetic Induction
274.96 mT / 2750 Gs
Coating
[NiCuNi] Nickel
0.246 ZŁ with VAT / pcs + price for transport
0.200 ZŁ net + 23% VAT / pcs
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Technical - MPL 10x4x1.5 / N38 - lamellar magnet
Specification / characteristics - MPL 10x4x1.5 / N38 - lamellar magnet
| properties | values |
|---|---|
| Cat. no. | 020113 |
| GTIN/EAN | 5906301811190 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| length | 10 mm [±0,1 mm] |
| Width | 4 mm [±0,1 mm] |
| Height | 1.5 mm [±0,1 mm] |
| Weight | 0.45 g |
| Magnetization Direction | ↑ axial |
| Load capacity ~ ? | 0.88 kg / 8.65 N |
| Magnetic Induction ~ ? | 274.96 mT / 2750 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
These values constitute the result of a mathematical simulation. Values are based on models for the class Nd2Fe14B. Operational conditions might slightly differ. Please consider these calculations as a supplementary guide when designing systems.
Table 1: Static force (force vs gap) - power drop
MPL 10x4x1.5 / N38
| Distance (mm) | Induction (Gauss) / mT | Pull Force (kg/lbs/g/N) | Risk Status |
|---|---|---|---|
| 0 mm |
2747 Gs
274.7 mT
|
0.88 kg / 1.94 pounds
880.0 g / 8.6 N
|
low risk |
| 1 mm |
1882 Gs
188.2 mT
|
0.41 kg / 0.91 pounds
413.1 g / 4.1 N
|
low risk |
| 2 mm |
1175 Gs
117.5 mT
|
0.16 kg / 0.35 pounds
161.0 g / 1.6 N
|
low risk |
| 3 mm |
746 Gs
74.6 mT
|
0.06 kg / 0.14 pounds
64.9 g / 0.6 N
|
low risk |
| 5 mm |
337 Gs
33.7 mT
|
0.01 kg / 0.03 pounds
13.3 g / 0.1 N
|
low risk |
| 10 mm |
77 Gs
7.7 mT
|
0.00 kg / 0.00 pounds
0.7 g / 0.0 N
|
low risk |
| 15 mm |
27 Gs
2.7 mT
|
0.00 kg / 0.00 pounds
0.1 g / 0.0 N
|
low risk |
| 20 mm |
12 Gs
1.2 mT
|
0.00 kg / 0.00 pounds
0.0 g / 0.0 N
|
low risk |
| 30 mm |
4 Gs
0.4 mT
|
0.00 kg / 0.00 pounds
0.0 g / 0.0 N
|
low risk |
| 50 mm |
1 Gs
0.1 mT
|
0.00 kg / 0.00 pounds
0.0 g / 0.0 N
|
low risk |
Table 2: Slippage load (vertical surface)
MPL 10x4x1.5 / N38
| Distance (mm) | Friction coefficient | Pull Force (kg/lbs/g/N) |
|---|---|---|
| 0 mm | Stal (~0.2) |
0.18 kg / 0.39 pounds
176.0 g / 1.7 N
|
| 1 mm | Stal (~0.2) |
0.08 kg / 0.18 pounds
82.0 g / 0.8 N
|
| 2 mm | Stal (~0.2) |
0.03 kg / 0.07 pounds
32.0 g / 0.3 N
|
| 3 mm | Stal (~0.2) |
0.01 kg / 0.03 pounds
12.0 g / 0.1 N
|
| 5 mm | Stal (~0.2) |
0.00 kg / 0.00 pounds
2.0 g / 0.0 N
|
| 10 mm | Stal (~0.2) |
0.00 kg / 0.00 pounds
0.0 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: Wall mounting (sliding) - behavior on slippery surfaces
MPL 10x4x1.5 / N38
| Surface type | Friction coefficient / % Mocy | Max load (kg/lbs/g/N) |
|---|---|---|
| Raw steel |
µ = 0.3
30% Nominalnej Siły
|
0.26 kg / 0.58 pounds
264.0 g / 2.6 N
|
| Painted steel (standard) |
µ = 0.2
20% Nominalnej Siły
|
0.18 kg / 0.39 pounds
176.0 g / 1.7 N
|
| Oily/slippery steel |
µ = 0.1
10% Nominalnej Siły
|
0.09 kg / 0.19 pounds
88.0 g / 0.9 N
|
| Magnet with anti-slip rubber |
µ = 0.5
50% Nominalnej Siły
|
0.44 kg / 0.97 pounds
440.0 g / 4.3 N
|
Table 4: Steel thickness (substrate influence) - power losses
MPL 10x4x1.5 / N38
| Steel thickness (mm) | % power | Real pull force (kg/lbs/g/N) |
|---|---|---|
| 0.5 mm |
|
0.09 kg / 0.19 pounds
88.0 g / 0.9 N
|
| 1 mm |
|
0.22 kg / 0.49 pounds
220.0 g / 2.2 N
|
| 2 mm |
|
0.44 kg / 0.97 pounds
440.0 g / 4.3 N
|
| 3 mm |
|
0.66 kg / 1.46 pounds
660.0 g / 6.5 N
|
| 5 mm |
|
0.88 kg / 1.94 pounds
880.0 g / 8.6 N
|
| 10 mm |
|
0.88 kg / 1.94 pounds
880.0 g / 8.6 N
|
| 11 mm |
|
0.88 kg / 1.94 pounds
880.0 g / 8.6 N
|
| 12 mm |
|
0.88 kg / 1.94 pounds
880.0 g / 8.6 N
|
Table 5: Working in heat (stability) - power drop
MPL 10x4x1.5 / N38
| Ambient temp. (°C) | Power loss | Remaining pull (kg/lbs/g/N) | Status |
|---|---|---|---|
| 20 °C | 0.0% |
0.88 kg / 1.94 pounds
880.0 g / 8.6 N
|
OK |
| 40 °C | -2.2% |
0.86 kg / 1.90 pounds
860.6 g / 8.4 N
|
OK |
| 60 °C | -4.4% |
0.84 kg / 1.85 pounds
841.3 g / 8.3 N
|
|
| 80 °C | -6.6% |
0.82 kg / 1.81 pounds
821.9 g / 8.1 N
|
|
| 100 °C | -28.8% |
0.63 kg / 1.38 pounds
626.6 g / 6.1 N
|
Table 6: Magnet-Magnet interaction (attraction) - field collision
MPL 10x4x1.5 / N38
| Gap (mm) | Attraction (kg/lbs) (N-S) | Shear Force (kg/lbs/g/N) | Repulsion (kg/lbs) (N-N) |
|---|---|---|---|
| 0 mm |
1.86 kg / 4.10 pounds
4 229 Gs
|
0.28 kg / 0.62 pounds
279 g / 2.7 N
|
N/A |
| 1 mm |
1.34 kg / 2.95 pounds
4 661 Gs
|
0.20 kg / 0.44 pounds
201 g / 2.0 N
|
1.21 kg / 2.66 pounds
~0 Gs
|
| 2 mm |
0.87 kg / 1.93 pounds
3 764 Gs
|
0.13 kg / 0.29 pounds
131 g / 1.3 N
|
0.79 kg / 1.73 pounds
~0 Gs
|
| 3 mm |
0.55 kg / 1.21 pounds
2 978 Gs
|
0.08 kg / 0.18 pounds
82 g / 0.8 N
|
0.49 kg / 1.09 pounds
~0 Gs
|
| 5 mm |
0.21 kg / 0.47 pounds
1 864 Gs
|
0.03 kg / 0.07 pounds
32 g / 0.3 N
|
0.19 kg / 0.43 pounds
~0 Gs
|
| 10 mm |
0.03 kg / 0.06 pounds
675 Gs
|
0.00 kg / 0.01 pounds
4 g / 0.0 N
|
0.03 kg / 0.06 pounds
~0 Gs
|
| 20 mm |
0.00 kg / 0.00 pounds
154 Gs
|
0.00 kg / 0.00 pounds
0 g / 0.0 N
|
0.00 kg / 0.00 pounds
~0 Gs
|
| 50 mm |
0.00 kg / 0.00 pounds
13 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
8 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
5 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
3 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
2 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
2 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) - warnings
MPL 10x4x1.5 / N38
| Object / Device | Limit (Gauss) / mT | Safe distance |
|---|---|---|
| Pacemaker | 5 Gs (0.5 mT) | 3.0 cm |
| Hearing aid | 10 Gs (1.0 mT) | 2.5 cm |
| Mechanical watch | 20 Gs (2.0 mT) | 2.0 cm |
| Mobile device | 40 Gs (4.0 mT) | 1.5 cm |
| Car key | 50 Gs (5.0 mT) | 1.5 cm |
| Payment card | 400 Gs (40.0 mT) | 0.5 cm |
| HDD hard drive | 600 Gs (60.0 mT) | 0.5 cm |
Table 8: Collisions (kinetic energy) - collision effects
MPL 10x4x1.5 / N38
| Start from (mm) | Speed (km/h) | Energy (J) | Predicted outcome |
|---|---|---|---|
| 10 mm |
44.62 km/h
(12.39 m/s)
|
0.03 J | |
| 30 mm |
77.25 km/h
(21.46 m/s)
|
0.10 J | |
| 50 mm |
99.72 km/h
(27.70 m/s)
|
0.17 J | |
| 100 mm |
141.03 km/h
(39.18 m/s)
|
0.35 J |
Table 9: Anti-corrosion coating durability
MPL 10x4x1.5 / 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 (Pc)
MPL 10x4x1.5 / N38
| Parameter | Value | SI Unit / Description |
|---|---|---|
| Magnetic Flux | 1 104 Mx | 11.0 µWb |
| Pc Coefficient | 0.30 | Low (Flat) |
Table 11: Submerged application
MPL 10x4x1.5 / N38
| Environment | Effective steel pull | Effect |
|---|---|---|
| Air (land) | 0.88 kg | Standard |
| Water (riverbed) |
1.01 kg
(+0.13 kg buoyancy gain)
|
+14.5% |
1. Vertical hold
*Warning: On a vertical surface, the magnet retains just a fraction of its nominal pull.
2. Plate thickness effect
*Thin steel (e.g. 0.5mm PC case) drastically reduces the holding force.
3. Heat tolerance
*For standard magnets, the max working temp is 80°C.
4. Demagnetization curve and operating point (B-H)
chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.30
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% |
Sustainability
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
Other deals
Advantages as well as disadvantages of neodymium magnets.
Pros
- They virtually do not lose power, because even after ten years the decline in efficiency is only ~1% (based on calculations),
- They do not lose their magnetic properties even under external field action,
- In other words, due to the reflective finish of gold, the element gains a professional look,
- They are known for high magnetic induction at the operating surface, which improves attraction properties,
- Thanks to resistance to high temperature, they can operate (depending on the form) even at temperatures up to 230°C and higher...
- Possibility of custom modeling and optimizing to precise applications,
- Wide application in high-tech industry – they find application in hard drives, drive modules, medical equipment, and multitasking production systems.
- Thanks to concentrated force, small magnets offer high operating force, in miniature format,
Limitations
- To avoid cracks upon strong impacts, we suggest using special steel holders. Such a solution secures the magnet and simultaneously increases its durability.
- Neodymium magnets lose 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
- Due to the susceptibility of magnets to corrosion in a humid environment, we advise using waterproof magnets made of rubber, plastic or other material immune to moisture, in case of application outdoors
- Limited possibility of making nuts in the magnet and complex shapes - preferred is casing - magnet mounting.
- Health risk to health – tiny shards of magnets pose a threat, in case of ingestion, which becomes key in the aspect of protecting the youngest. It is also worth noting that tiny parts of these magnets can complicate diagnosis medical in case of swallowing.
- Due to neodymium price, their price is relatively high,
Holding force characteristics
Maximum lifting force for a neodymium magnet – what affects it?
- using a sheet made of mild steel, functioning as a circuit closing element
- whose thickness equals approx. 10 mm
- with an ground touching surface
- with total lack of distance (no impurities)
- under axial force direction (90-degree angle)
- in temp. approx. 20°C
Determinants of practical lifting force of a magnet
- Distance – existence of any layer (paint, dirt, gap) acts as an insulator, which reduces capacity steeply (even by 50% at 0.5 mm).
- Loading method – declared lifting capacity refers to detachment vertically. When applying parallel force, the magnet exhibits much less (typically approx. 20-30% of maximum force).
- Base massiveness – insufficiently thick steel causes magnetic saturation, causing part of the power to be escaped into the air.
- Steel type – low-carbon steel gives the best results. Alloy admixtures lower magnetic permeability and holding force.
- Surface finish – ideal contact is obtained only on smooth steel. Rough texture reduce the real contact area, weakening the magnet.
- Operating temperature – NdFeB sinters have a sensitivity to temperature. When it is hot they lose power, and at low temperatures gain strength (up to a certain limit).
Lifting capacity was measured using a smooth steel plate of optimal thickness (min. 20 mm), under vertically applied force, however under shearing force the load capacity is reduced by as much as fivefold. Additionally, even a minimal clearance between the magnet’s surface and the plate decreases the holding force.
H&S for magnets
Bone fractures
Large magnets can break fingers in a fraction of a second. Under no circumstances put your hand between two strong magnets.
Dust explosion hazard
Machining of neodymium magnets carries a risk of fire risk. Magnetic powder oxidizes rapidly with oxygen and is difficult to extinguish.
GPS Danger
Remember: rare earth magnets produce a field that confuses sensitive sensors. Maintain a separation from your mobile, tablet, and navigation systems.
Power loss in heat
Avoid heat. NdFeB magnets are susceptible to temperature. If you require operation above 80°C, ask us about special high-temperature series (H, SH, UH).
Danger to the youngest
Absolutely keep magnets out of reach of children. Ingestion danger is high, and the effects of magnets connecting inside the body are tragic.
Warning for allergy sufferers
Some people suffer from a hypersensitivity to Ni, which is the standard coating for neodymium magnets. Extended handling may cause a rash. We strongly advise use safety gloves.
Danger to pacemakers
People with a heart stimulator must keep an large gap from magnets. The magnetic field can interfere with the functioning of the life-saving device.
Protect data
Avoid bringing magnets near a purse, computer, or screen. The magnetic field can permanently damage these devices and erase data from cards.
Respect the power
Before starting, check safety instructions. Uncontrolled attraction can destroy the magnet or injure your hand. Think ahead.
Material brittleness
Watch out for shards. Magnets can explode upon violent connection, launching sharp fragments into the air. Wear goggles.
