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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Technical specification of the product - 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 analysis of the product - report
Presented values represent the outcome of a mathematical simulation. Results are based on models for the class Nd2Fe14B. Operational parameters may differ from theoretical values. Please consider these data as a reference point during assembly planning.
Table 1: Static force (pull vs gap) - interaction chart
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 pounds
1570.0 g / 15.4 N
|
weak grip |
| 1 mm |
1628 Gs
162.8 mT
|
1.28 kg / 2.82 pounds
1278.3 g / 12.5 N
|
weak grip |
| 2 mm |
1394 Gs
139.4 mT
|
0.94 kg / 2.06 pounds
936.3 g / 9.2 N
|
weak grip |
| 3 mm |
1152 Gs
115.2 mT
|
0.64 kg / 1.41 pounds
639.9 g / 6.3 N
|
weak grip |
| 5 mm |
751 Gs
75.1 mT
|
0.27 kg / 0.60 pounds
271.5 g / 2.7 N
|
weak grip |
| 10 mm |
262 Gs
26.2 mT
|
0.03 kg / 0.07 pounds
33.1 g / 0.3 N
|
weak grip |
| 15 mm |
110 Gs
11.0 mT
|
0.01 kg / 0.01 pounds
5.8 g / 0.1 N
|
weak grip |
| 20 mm |
54 Gs
5.4 mT
|
0.00 kg / 0.00 pounds
1.4 g / 0.0 N
|
weak grip |
| 30 mm |
18 Gs
1.8 mT
|
0.00 kg / 0.00 pounds
0.2 g / 0.0 N
|
weak grip |
| 50 mm |
4 Gs
0.4 mT
|
0.00 kg / 0.00 pounds
0.0 g / 0.0 N
|
weak grip |
Table 2: Vertical force (vertical surface)
MPL 15x10x2 / N38
| Distance (mm) | Friction coefficient | Pull Force (kg/lbs/g/N) |
|---|---|---|
| 0 mm | Stal (~0.2) |
0.31 kg / 0.69 pounds
314.0 g / 3.1 N
|
| 1 mm | Stal (~0.2) |
0.26 kg / 0.56 pounds
256.0 g / 2.5 N
|
| 2 mm | Stal (~0.2) |
0.19 kg / 0.41 pounds
188.0 g / 1.8 N
|
| 3 mm | Stal (~0.2) |
0.13 kg / 0.28 pounds
128.0 g / 1.3 N
|
| 5 mm | Stal (~0.2) |
0.05 kg / 0.12 pounds
54.0 g / 0.5 N
|
| 10 mm | Stal (~0.2) |
0.01 kg / 0.01 pounds
6.0 g / 0.1 N
|
| 15 mm | Stal (~0.2) |
0.00 kg / 0.00 pounds
2.0 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
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 pounds
471.0 g / 4.6 N
|
| Painted steel (standard) |
µ = 0.2
20% Nominalnej Siły
|
0.31 kg / 0.69 pounds
314.0 g / 3.1 N
|
| Oily/slippery steel |
µ = 0.1
10% Nominalnej Siły
|
0.16 kg / 0.35 pounds
157.0 g / 1.5 N
|
| Magnet with anti-slip rubber |
µ = 0.5
50% Nominalnej Siły
|
0.79 kg / 1.73 pounds
785.0 g / 7.7 N
|
Table 4: Steel thickness (substrate influence) - sheet metal selection
MPL 15x10x2 / N38
| Steel thickness (mm) | % power | Real pull force (kg/lbs/g/N) |
|---|---|---|
| 0.5 mm |
|
0.16 kg / 0.35 pounds
157.0 g / 1.5 N
|
| 1 mm |
|
0.39 kg / 0.87 pounds
392.5 g / 3.9 N
|
| 2 mm |
|
0.79 kg / 1.73 pounds
785.0 g / 7.7 N
|
| 3 mm |
|
1.18 kg / 2.60 pounds
1177.5 g / 11.6 N
|
| 5 mm |
|
1.57 kg / 3.46 pounds
1570.0 g / 15.4 N
|
| 10 mm |
|
1.57 kg / 3.46 pounds
1570.0 g / 15.4 N
|
| 11 mm |
|
1.57 kg / 3.46 pounds
1570.0 g / 15.4 N
|
| 12 mm |
|
1.57 kg / 3.46 pounds
1570.0 g / 15.4 N
|
Table 5: Thermal stability (material behavior) - 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 pounds
1570.0 g / 15.4 N
|
OK |
| 40 °C | -2.2% |
1.54 kg / 3.39 pounds
1535.5 g / 15.1 N
|
OK |
| 60 °C | -4.4% |
1.50 kg / 3.31 pounds
1500.9 g / 14.7 N
|
|
| 80 °C | -6.6% |
1.47 kg / 3.23 pounds
1466.4 g / 14.4 N
|
|
| 100 °C | -28.8% |
1.12 kg / 2.46 pounds
1117.8 g / 11.0 N
|
Table 6: Magnet-Magnet interaction (repulsion) - field collision
MPL 15x10x2 / N38
| Gap (mm) | Attraction (kg/lbs) (N-S) | Sliding Force (kg/lbs/g/N) | Repulsion (kg/lbs) (N-N) |
|---|---|---|---|
| 0 mm |
3.01 kg / 6.64 pounds
3 196 Gs
|
0.45 kg / 1.00 pounds
452 g / 4.4 N
|
N/A |
| 1 mm |
2.76 kg / 6.09 pounds
3 456 Gs
|
0.41 kg / 0.91 pounds
414 g / 4.1 N
|
2.49 kg / 5.48 pounds
~0 Gs
|
| 2 mm |
2.45 kg / 5.41 pounds
3 257 Gs
|
0.37 kg / 0.81 pounds
368 g / 3.6 N
|
2.21 kg / 4.87 pounds
~0 Gs
|
| 3 mm |
2.12 kg / 4.68 pounds
3 029 Gs
|
0.32 kg / 0.70 pounds
318 g / 3.1 N
|
1.91 kg / 4.21 pounds
~0 Gs
|
| 5 mm |
1.49 kg / 3.30 pounds
2 543 Gs
|
0.22 kg / 0.49 pounds
224 g / 2.2 N
|
1.35 kg / 2.97 pounds
~0 Gs
|
| 10 mm |
0.52 kg / 1.15 pounds
1 501 Gs
|
0.08 kg / 0.17 pounds
78 g / 0.8 N
|
0.47 kg / 1.03 pounds
~0 Gs
|
| 20 mm |
0.06 kg / 0.14 pounds
524 Gs
|
0.01 kg / 0.02 pounds
10 g / 0.1 N
|
0.06 kg / 0.13 pounds
~0 Gs
|
| 50 mm |
0.00 kg / 0.00 pounds
60 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
37 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
24 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
16 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
12 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
9 Gs
|
0.00 kg / 0.00 pounds
0 g / 0.0 N
|
0.00 kg / 0.00 pounds
~0 Gs
|
Table 7: Hazards (implants) - warnings
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 |
| Timepiece | 20 Gs (2.0 mT) | 3.0 cm |
| Mobile device | 40 Gs (4.0 mT) | 2.5 cm |
| Remote | 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: Coating parameters (durability)
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: Underwater work (magnet fishing)
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. Vertical hold
*Warning: On a vertical surface, the magnet holds merely approx. 20-30% of its perpendicular strength.
2. Steel saturation
*Thin steel (e.g. 0.5mm PC case) severely weakens the holding force.
3. Temperature resistance
*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.
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% |
Sustainability
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
View also products
Strengths and weaknesses of Nd2Fe14B magnets.
Advantages
- They retain full power for almost ten years – the loss is just ~1% (in theory),
- They are resistant to demagnetization induced by presence of other magnetic fields,
- In other words, due to the shiny layer of silver, the element looks attractive,
- Magnetic induction on the top side of the magnet turns out to be strong,
- Neodymium magnets are characterized by very high magnetic induction on the magnet surface and can work (depending on the form) even at a temperature of 230°C or more...
- Possibility of custom forming and optimizing to complex requirements,
- Significant place in advanced technology sectors – they are used in data components, electromotive mechanisms, precision medical tools, and complex engineering applications.
- Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in tiny dimensions, which allows their use in small systems
Cons
- Brittleness is one of their disadvantages. Upon strong impact they can break. We recommend keeping them in a special holder, which not only protects them against impacts but also raises their durability
- Neodymium magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop of power (a factor is the shape and dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are extremely resistant to heat
- They oxidize in a humid environment - during use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
- Limited possibility of making nuts in the magnet and complex shapes - preferred is cover - magnet mounting.
- Health risk resulting from small fragments of magnets can be dangerous, when accidentally swallowed, which becomes key in the context of child safety. Additionally, small components of these magnets can be problematic in diagnostics medical in case of swallowing.
- Due to neodymium price, their price is higher than average,
Lifting parameters
Magnetic strength at its maximum – what it depends on?
- on a block made of mild steel, optimally conducting the magnetic flux
- whose transverse dimension is min. 10 mm
- characterized by smoothness
- without any air gap between the magnet and steel
- during pulling in a direction vertical to the mounting surface
- at ambient temperature room level
Determinants of lifting force in real conditions
- Clearance – existence of any layer (paint, dirt, air) interrupts the magnetic circuit, which reduces power steeply (even by 50% at 0.5 mm).
- Angle of force application – maximum parameter is obtained only during perpendicular pulling. The force required to slide of the magnet along the surface is typically several times lower (approx. 1/5 of the lifting capacity).
- Plate thickness – too thin sheet causes magnetic saturation, causing part of the power to be escaped to the other side.
- Material type – the best choice is pure iron steel. Cast iron may attract less.
- Base smoothness – the smoother and more polished the surface, the larger the contact zone and stronger the hold. Unevenness creates an air distance.
- Operating temperature – neodymium magnets have a sensitivity to temperature. At higher temperatures they are weaker, and in frost they can be stronger (up to a certain limit).
Holding force was tested on the plate surface of 20 mm thickness, when a perpendicular force was applied, in contrast under shearing force the load capacity is reduced by as much as 5 times. Additionally, even a slight gap between the magnet’s surface and the plate lowers the holding force.
Warnings
Electronic devices
Avoid bringing magnets close to a wallet, computer, or screen. The magnetism can permanently damage these devices and erase data from cards.
Immense force
Handle with care. Rare earth magnets act from a long distance and snap with huge force, often quicker than you can react.
Crushing risk
Danger of trauma: The attraction force is so great that it can result in hematomas, pinching, and even bone fractures. Use thick gloves.
Do not give to children
Product intended for adults. Tiny parts can be swallowed, leading to intestinal necrosis. Store away from kids and pets.
Metal Allergy
Medical facts indicate that nickel (standard magnet coating) is a common allergen. For allergy sufferers, prevent direct skin contact and choose encased magnets.
Do not overheat magnets
Standard neodymium magnets (grade N) lose magnetization when the temperature goes above 80°C. This process is irreversible.
Eye protection
Beware of splinters. Magnets can fracture upon uncontrolled impact, launching shards into the air. We recommend safety glasses.
GPS Danger
GPS units and mobile phones are extremely sensitive to magnetic fields. Direct contact with a powerful NdFeB magnet can decalibrate the sensors in your phone.
Do not drill into magnets
Machining of neodymium magnets poses a fire risk. Neodymium dust reacts violently with oxygen and is difficult to extinguish.
Warning for heart patients
Medical warning: Strong magnets can deactivate heart devices and defibrillators. Do not approach if you have medical devices.
