MPL 15x10x2 / N38 - lamellar magnet
lamellar magnet
Catalog no 020388
GTIN/EAN: 5906301811879
length
15 mm [±0,1 mm]
Width
10 mm [±0,1 mm]
Height
2 mm [±0,1 mm]
Weight
2.25 g
Magnetization Direction
↑ axial
Load capacity
1.57 kg / 15.45 N
Magnetic Induction
180.53 mT / 1805 Gs
Coating
[NiCuNi] Nickel
1.316 ZŁ with VAT / pcs + price for transport
1.070 ZŁ net + 23% VAT / pcs
bulk discounts:
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Detailed specification - MPL 15x10x2 / N38 - lamellar magnet
Specification / characteristics - MPL 15x10x2 / N38 - lamellar magnet
| properties | values |
|---|---|
| Cat. no. | 020388 |
| GTIN/EAN | 5906301811879 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| length | 15 mm [±0,1 mm] |
| Width | 10 mm [±0,1 mm] |
| Height | 2 mm [±0,1 mm] |
| Weight | 2.25 g |
| Magnetization Direction | ↑ axial |
| Load capacity ~ ? | 1.57 kg / 15.45 N |
| Magnetic Induction ~ ? | 180.53 mT / 1805 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 |
Engineering modeling of the product - report
These data represent the result of a engineering calculation. Values are based on models for the class Nd2Fe14B. Actual performance might slightly deviate from the simulation results. Please consider these data as a preliminary roadmap during assembly planning.
Table 1: Static pull force (pull vs gap) - characteristics
MPL 15x10x2 / N38
| Distance (mm) | Induction (Gauss) / mT | Pull Force (kg/lbs/g/N) | Risk Status |
|---|---|---|---|
| 0 mm |
1805 Gs
180.5 mT
|
1.57 kg / 3.46 lbs
1570.0 g / 15.4 N
|
safe |
| 1 mm |
1628 Gs
162.8 mT
|
1.28 kg / 2.82 lbs
1278.3 g / 12.5 N
|
safe |
| 2 mm |
1394 Gs
139.4 mT
|
0.94 kg / 2.06 lbs
936.3 g / 9.2 N
|
safe |
| 3 mm |
1152 Gs
115.2 mT
|
0.64 kg / 1.41 lbs
639.9 g / 6.3 N
|
safe |
| 5 mm |
751 Gs
75.1 mT
|
0.27 kg / 0.60 lbs
271.5 g / 2.7 N
|
safe |
| 10 mm |
262 Gs
26.2 mT
|
0.03 kg / 0.07 lbs
33.1 g / 0.3 N
|
safe |
| 15 mm |
110 Gs
11.0 mT
|
0.01 kg / 0.01 lbs
5.8 g / 0.1 N
|
safe |
| 20 mm |
54 Gs
5.4 mT
|
0.00 kg / 0.00 lbs
1.4 g / 0.0 N
|
safe |
| 30 mm |
18 Gs
1.8 mT
|
0.00 kg / 0.00 lbs
0.2 g / 0.0 N
|
safe |
| 50 mm |
4 Gs
0.4 mT
|
0.00 kg / 0.00 lbs
0.0 g / 0.0 N
|
safe |
Table 2: Shear load (wall)
MPL 15x10x2 / N38
| Distance (mm) | Friction coefficient | Pull Force (kg/lbs/g/N) |
|---|---|---|
| 0 mm | Stal (~0.2) |
0.31 kg / 0.69 lbs
314.0 g / 3.1 N
|
| 1 mm | Stal (~0.2) |
0.26 kg / 0.56 lbs
256.0 g / 2.5 N
|
| 2 mm | Stal (~0.2) |
0.19 kg / 0.41 lbs
188.0 g / 1.8 N
|
| 3 mm | Stal (~0.2) |
0.13 kg / 0.28 lbs
128.0 g / 1.3 N
|
| 5 mm | Stal (~0.2) |
0.05 kg / 0.12 lbs
54.0 g / 0.5 N
|
| 10 mm | Stal (~0.2) |
0.01 kg / 0.01 lbs
6.0 g / 0.1 N
|
| 15 mm | Stal (~0.2) |
0.00 kg / 0.00 lbs
2.0 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: Vertical assembly (shearing) - behavior on slippery surfaces
MPL 15x10x2 / N38
| Surface type | Friction coefficient / % Mocy | Max load (kg/lbs/g/N) |
|---|---|---|
| Raw steel |
µ = 0.3
30% Nominalnej Siły
|
0.47 kg / 1.04 lbs
471.0 g / 4.6 N
|
| Painted steel (standard) |
µ = 0.2
20% Nominalnej Siły
|
0.31 kg / 0.69 lbs
314.0 g / 3.1 N
|
| Oily/slippery steel |
µ = 0.1
10% Nominalnej Siły
|
0.16 kg / 0.35 lbs
157.0 g / 1.5 N
|
| Magnet with anti-slip rubber |
µ = 0.5
50% Nominalnej Siły
|
0.79 kg / 1.73 lbs
785.0 g / 7.7 N
|
Table 4: Material efficiency (saturation) - power losses
MPL 15x10x2 / N38
| Steel thickness (mm) | % power | Real pull force (kg/lbs/g/N) |
|---|---|---|
| 0.5 mm |
|
0.16 kg / 0.35 lbs
157.0 g / 1.5 N
|
| 1 mm |
|
0.39 kg / 0.87 lbs
392.5 g / 3.9 N
|
| 2 mm |
|
0.79 kg / 1.73 lbs
785.0 g / 7.7 N
|
| 3 mm |
|
1.18 kg / 2.60 lbs
1177.5 g / 11.6 N
|
| 5 mm |
|
1.57 kg / 3.46 lbs
1570.0 g / 15.4 N
|
| 10 mm |
|
1.57 kg / 3.46 lbs
1570.0 g / 15.4 N
|
| 11 mm |
|
1.57 kg / 3.46 lbs
1570.0 g / 15.4 N
|
| 12 mm |
|
1.57 kg / 3.46 lbs
1570.0 g / 15.4 N
|
Table 5: Thermal stability (stability) - power drop
MPL 15x10x2 / N38
| Ambient temp. (°C) | Power loss | Remaining pull (kg/lbs/g/N) | Status |
|---|---|---|---|
| 20 °C | 0.0% |
1.57 kg / 3.46 lbs
1570.0 g / 15.4 N
|
OK |
| 40 °C | -2.2% |
1.54 kg / 3.39 lbs
1535.5 g / 15.1 N
|
OK |
| 60 °C | -4.4% |
1.50 kg / 3.31 lbs
1500.9 g / 14.7 N
|
|
| 80 °C | -6.6% |
1.47 kg / 3.23 lbs
1466.4 g / 14.4 N
|
|
| 100 °C | -28.8% |
1.12 kg / 2.46 lbs
1117.8 g / 11.0 N
|
Table 6: Two magnets (repulsion) - forces in the system
MPL 15x10x2 / N38
| Gap (mm) | Attraction (kg/lbs) (N-S) | Shear Force (kg/lbs/g/N) | Repulsion (kg/lbs) (N-N) |
|---|---|---|---|
| 0 mm |
3.01 kg / 6.64 lbs
3 196 Gs
|
0.45 kg / 1.00 lbs
452 g / 4.4 N
|
N/A |
| 1 mm |
2.76 kg / 6.09 lbs
3 456 Gs
|
0.41 kg / 0.91 lbs
414 g / 4.1 N
|
2.49 kg / 5.48 lbs
~0 Gs
|
| 2 mm |
2.45 kg / 5.41 lbs
3 257 Gs
|
0.37 kg / 0.81 lbs
368 g / 3.6 N
|
2.21 kg / 4.87 lbs
~0 Gs
|
| 3 mm |
2.12 kg / 4.68 lbs
3 029 Gs
|
0.32 kg / 0.70 lbs
318 g / 3.1 N
|
1.91 kg / 4.21 lbs
~0 Gs
|
| 5 mm |
1.49 kg / 3.30 lbs
2 543 Gs
|
0.22 kg / 0.49 lbs
224 g / 2.2 N
|
1.35 kg / 2.97 lbs
~0 Gs
|
| 10 mm |
0.52 kg / 1.15 lbs
1 501 Gs
|
0.08 kg / 0.17 lbs
78 g / 0.8 N
|
0.47 kg / 1.03 lbs
~0 Gs
|
| 20 mm |
0.06 kg / 0.14 lbs
524 Gs
|
0.01 kg / 0.02 lbs
10 g / 0.1 N
|
0.06 kg / 0.13 lbs
~0 Gs
|
| 50 mm |
0.00 kg / 0.00 lbs
60 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
37 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
24 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
16 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
12 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
9 Gs
|
0.00 kg / 0.00 lbs
0 g / 0.0 N
|
0.00 kg / 0.00 lbs
~0 Gs
|
Table 7: Hazards (electronics) - precautionary measures
MPL 15x10x2 / N38
| Object / Device | Limit (Gauss) / mT | Safe distance |
|---|---|---|
| Pacemaker | 5 Gs (0.5 mT) | 5.0 cm |
| Hearing aid | 10 Gs (1.0 mT) | 4.0 cm |
| Mechanical watch | 20 Gs (2.0 mT) | 3.0 cm |
| Phone / Smartphone | 40 Gs (4.0 mT) | 2.5 cm |
| Car key | 50 Gs (5.0 mT) | 2.5 cm |
| Payment card | 400 Gs (40.0 mT) | 1.0 cm |
| HDD hard drive | 600 Gs (60.0 mT) | 1.0 cm |
Table 8: Impact energy (kinetic energy) - warning
MPL 15x10x2 / N38
| Start from (mm) | Speed (km/h) | Energy (J) | Predicted outcome |
|---|---|---|---|
| 10 mm |
26.99 km/h
(7.50 m/s)
|
0.06 J | |
| 30 mm |
46.15 km/h
(12.82 m/s)
|
0.18 J | |
| 50 mm |
59.57 km/h
(16.55 m/s)
|
0.31 J | |
| 100 mm |
84.24 km/h
(23.40 m/s)
|
0.62 J |
Table 9: Corrosion resistance
MPL 15x10x2 / 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 15x10x2 / N38
| Parameter | Value | SI Unit / Description |
|---|---|---|
| Magnetic Flux | 3 194 Mx | 31.9 µWb |
| Pc Coefficient | 0.22 | Low (Flat) |
Table 11: Submerged application
MPL 15x10x2 / N38
| Environment | Effective steel pull | Effect |
|---|---|---|
| Air (land) | 1.57 kg | Standard |
| Water (riverbed) |
1.80 kg
(+0.23 kg buoyancy gain)
|
+14.5% |
1. Wall mount (shear)
*Warning: On a vertical wall, the magnet holds just ~20% of its nominal pull.
2. Steel saturation
*Thin steel (e.g. 0.5mm PC case) severely reduces the holding force.
3. Thermal stability
*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
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.
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% |
Ecology and recycling (GPSR)
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
Other products
Pros and cons of Nd2Fe14B magnets.
Advantages
- They do not lose magnetism, even after around 10 years – the decrease in lifting capacity is only ~1% (theoretically),
- They are extremely resistant to demagnetization induced by external magnetic fields,
- Thanks to the glossy finish, the surface of Ni-Cu-Ni, gold, or silver-plated gives an modern appearance,
- The surface of neodymium magnets generates a unique magnetic field – this is a distinguishing feature,
- Thanks to resistance to high temperature, they are able to function (depending on the shape) even at temperatures up to 230°C and higher...
- Thanks to flexibility in constructing and the capacity to modify to client solutions,
- Wide application in future technologies – they are used in hard drives, brushless drives, medical devices, as well as other advanced devices.
- Thanks to concentrated force, small magnets offer high operating force, occupying minimum space,
Limitations
- At very strong impacts they can break, therefore we advise placing them in special holders. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
- We warn that neodymium magnets can lose their strength at high temperatures. To prevent this, we advise our specialized [AH] magnets, which work effectively even at 230°C.
- When exposed to humidity, magnets start to rust. For applications outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which secure oxidation as well as corrosion.
- Due to limitations in realizing threads and complex forms in magnets, we recommend using a housing - magnetic mechanism.
- Potential hazard related to microscopic parts of magnets can be dangerous, in case of ingestion, which is particularly important in the context of child safety. Furthermore, tiny parts of these magnets can be problematic in diagnostics medical after entering the body.
- Due to neodymium price, their price is higher than average,
Pull force analysis
Maximum lifting force for a neodymium magnet – what affects it?
- on a block made of mild steel, perfectly concentrating the magnetic field
- with a cross-section of at least 10 mm
- with a plane free of scratches
- under conditions of no distance (surface-to-surface)
- under perpendicular application of breakaway force (90-degree angle)
- at ambient temperature approx. 20 degrees Celsius
Magnet lifting force in use – key factors
- Distance – the presence of foreign body (paint, tape, air) interrupts the magnetic circuit, which reduces capacity rapidly (even by 50% at 0.5 mm).
- Pull-off angle – remember that the magnet holds strongest perpendicularly. Under sliding down, the holding force drops drastically, often to levels of 20-30% of the nominal value.
- Substrate thickness – for full efficiency, the steel must be sufficiently thick. Thin sheet limits the attraction force (the magnet "punches through" it).
- Material composition – not every steel attracts identically. High carbon content weaken the interaction with the magnet.
- Plate texture – smooth surfaces guarantee perfect abutment, which increases field saturation. Uneven metal reduce efficiency.
- Thermal environment – heating the magnet causes a temporary drop of force. Check the thermal limit for a given model.
Lifting capacity was determined with the use of a steel plate with a smooth surface of suitable thickness (min. 20 mm), under vertically applied force, however under shearing force the load capacity is reduced by as much as 75%. In addition, even a slight gap between the magnet and the plate lowers the lifting capacity.
H&S for magnets
Product not for children
These products are not intended for children. Accidental ingestion of several magnets can lead to them pinching intestinal walls, which constitutes a critical condition and requires immediate surgery.
Allergy Warning
Studies show that nickel (standard magnet coating) is a strong allergen. If you have an allergy, prevent touching magnets with bare hands and select versions in plastic housing.
Electronic hazard
Avoid bringing magnets near a purse, laptop, or TV. The magnetic field can permanently damage these devices and wipe information from cards.
Safe operation
Use magnets consciously. Their huge power can surprise even experienced users. Stay alert and respect their power.
Beware of splinters
Protect your eyes. Magnets can fracture upon violent connection, ejecting sharp fragments into the air. Eye protection is mandatory.
Power loss in heat
Monitor thermal conditions. Exposing the magnet to high heat will ruin its magnetic structure and pulling force.
Pacemakers
Patients with a ICD have to keep an absolute distance from magnets. The magnetism can stop the operation of the implant.
Mechanical processing
Fire hazard: Rare earth powder is explosive. Do not process magnets in home conditions as this risks ignition.
Bodily injuries
Danger of trauma: The attraction force is so immense that it can result in blood blisters, pinching, and even bone fractures. Protective gloves are recommended.
Phone sensors
A powerful magnetic field negatively affects the operation of compasses in smartphones and GPS navigation. Do not bring magnets close to a smartphone to prevent damaging the sensors.
