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
- Coating
- [NiCuNi] Nickel
How we measure these parameters — certificates and measurements
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bulk discounts:
Need more?Frequently asked questions
How much will a block magnet really hold?
What is the maximum working temperature?
What safety factor should I allow?
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 data - 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 |
|---|---|---|
| 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 |
Technical modeling of the product - report
These values represent the direct effect of a mathematical simulation. Values rely on algorithms for the material Nd2Fe14B. Actual parameters might slightly deviate from the simulation results. Use these calculations as a supplementary guide during assembly planning.
Table 1: Static pull force (force vs gap) - characteristics
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
|
weak grip |
| 1 mm |
1882 Gs
188.2 mT
|
0.41 kg / 0.91 pounds
413.1 g / 4.1 N
|
weak grip |
| 2 mm |
1175 Gs
117.5 mT
|
0.16 kg / 0.35 pounds
161.0 g / 1.6 N
|
weak grip |
| 3 mm |
746 Gs
74.6 mT
|
0.06 kg / 0.14 pounds
64.9 g / 0.6 N
|
weak grip |
| 5 mm |
337 Gs
33.7 mT
|
0.01 kg / 0.03 pounds
13.3 g / 0.1 N
|
weak grip |
| 10 mm |
77 Gs
7.7 mT
|
0.00 kg / 0.00 pounds
0.7 g / 0.0 N
|
weak grip |
| 15 mm |
27 Gs
2.7 mT
|
0.00 kg / 0.00 pounds
0.1 g / 0.0 N
|
weak grip |
| 20 mm |
12 Gs
1.2 mT
|
0.00 kg / 0.00 pounds
0.0 g / 0.0 N
|
weak grip |
| 30 mm |
4 Gs
0.4 mT
|
0.00 kg / 0.00 pounds
0.0 g / 0.0 N
|
weak grip |
| 50 mm |
1 Gs
0.1 mT
|
0.00 kg / 0.00 pounds
0.0 g / 0.0 N
|
weak grip |
Table 2: Slippage force (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 (saturation) - sheet metal selection
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 (material behavior) - thermal limit
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: Two magnets (repulsion) - field collision
MPL 10x4x1.5 / N38
| Gap (mm) | Attraction (kg/lbs) (N-S) | Shear Strength (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 (electronics) - precautionary measures
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 |
| Phone / Smartphone | 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 |
24.93 km/h
(6.93 m/s)
|
0.01 J | |
| 30 mm |
24.94 km/h
(6.93 m/s)
|
0.01 J | |
| 50 mm |
24.93 km/h
(6.92 m/s)
|
0.01 J | |
| 100 mm |
24.95 km/h
(6.93 m/s)
|
0.01 J |
Table 9: Corrosion resistance
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: Construction 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: Hydrostatics and buoyancy
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. Sliding resistance
*Warning: On a vertical surface, the magnet retains merely ~20% of its max power.
2. Efficiency vs thickness
*Thin steel (e.g. 0.5mm PC case) significantly limits the holding force.
3. Temperature resistance
*For standard magnets, the critical limit 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.
Chemical composition
| 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 and disadvantages of rare earth magnets.
Benefits
- They retain magnetic properties for almost 10 years – the loss is just ~1% (in theory),
- They maintain their magnetic properties even under close interference source,
- The use of an metallic layer of noble metals (nickel, gold, silver) causes the element to be more visually attractive,
- Magnets are distinguished by excellent magnetic induction on the active area,
- Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their form) at temperatures up to 230°C and above...
- Thanks to the potential of accurate molding and adaptation to individualized requirements, magnetic components can be created in a broad palette of forms and dimensions, which expands the range of possible applications,
- Key role in advanced technology sectors – they find application in HDD drives, motor assemblies, diagnostic systems, as well as other advanced devices.
- Thanks to their power density, small magnets offer high operating force, occupying minimum space,
Weaknesses
- Brittleness is one of their disadvantages. Upon strong impact they can fracture. We advise keeping them in a steel housing, which not only secures them against impacts but also raises their durability
- Neodymium magnets lose their strength under the influence of heating. As soon as 80°C is exceeded, many of them start losing their force. Therefore, we recommend our special magnets marked [AH], which maintain stability even at temperatures up to 230°C
- They rust in a humid environment - during use outdoors we recommend using waterproof magnets e.g. in rubber, plastic
- We recommend casing - magnetic mount, due to difficulties in producing threads inside the magnet and complex shapes.
- Health risk to health – tiny shards of magnets are risky, when accidentally swallowed, which gains importance in the context of child safety. It is also worth noting that small components of these devices are able to complicate diagnosis medical after entering the body.
- High unit price – neodymium magnets are more expensive than other types of magnets (e.g. ferrite), which can limit application in large quantities
Lifting parameters
Detachment force of the magnet in optimal conditions – what it depends on?
- on a base made of mild steel, optimally conducting the magnetic field
- whose thickness reaches at least 10 mm
- with an polished touching surface
- without any insulating layer between the magnet and steel
- for force applied at a right angle (pull-off, not shear)
- in neutral thermal conditions
Lifting capacity in real conditions – factors
- Gap (betwixt the magnet and the metal), since even a very small clearance (e.g. 0.5 mm) results in a drastic drop in force by up to 50% (this also applies to varnish, rust or debris).
- Pull-off angle – remember that the magnet has greatest strength perpendicularly. Under shear forces, the capacity drops drastically, often to levels of 20-30% of the maximum value.
- Substrate thickness – for full efficiency, the steel must be sufficiently thick. Thin sheet restricts the lifting capacity (the magnet "punches through" it).
- Steel grade – the best choice is high-permeability steel. Stainless steels may generate lower lifting capacity.
- Surface finish – ideal contact is obtained only on smooth steel. Any scratches and bumps reduce the real contact area, weakening the magnet.
- Operating temperature – neodymium magnets have a negative temperature coefficient. When it is hot they lose power, and in frost they can be stronger (up to a certain limit).
Lifting capacity was measured with the use of a smooth steel plate of suitable thickness (min. 20 mm), under perpendicular pulling force, in contrast under parallel forces the holding force is lower. Moreover, even a slight gap between the magnet’s surface and the plate reduces the holding force.
H&S for magnets
Keep away from computers
Intense magnetic fields can corrupt files on payment cards, HDDs, and other magnetic media. Keep a distance of min. 10 cm.
Allergic reactions
It is widely known that the nickel plating (the usual finish) is a common allergen. For allergy sufferers, prevent touching magnets with bare hands and choose coated magnets.
Heat warning
Avoid heat. Neodymium magnets are sensitive to temperature. If you require resistance above 80°C, inquire about special high-temperature series (H, SH, UH).
Combustion hazard
Mechanical processing of neodymium magnets poses a fire hazard. Magnetic powder oxidizes rapidly with oxygen and is difficult to extinguish.
Risk of cracking
Beware of splinters. Magnets can fracture upon uncontrolled impact, launching shards into the air. Eye protection is mandatory.
Danger to the youngest
Strictly keep magnets out of reach of children. Ingestion danger is high, and the effects of magnets clamping inside the body are very dangerous.
Magnetic interference
A strong magnetic field negatively affects the functioning of magnetometers in smartphones and GPS navigation. Maintain magnets near a smartphone to prevent damaging the sensors.
Crushing risk
Danger of trauma: The attraction force is so great that it can result in hematomas, pinching, and even bone fractures. Protective gloves are recommended.
Handling guide
Use magnets with awareness. Their immense force can shock even experienced users. Plan your moves and respect their force.
Medical implants
Patients with a ICD have to maintain an absolute distance from magnets. The magnetic field can disrupt the operation of the implant.
