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
bulk discounts:
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Technical data of the product - 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 |
Engineering modeling of the magnet - report
Presented values represent the result of a mathematical simulation. Values were calculated on algorithms for the material Nd2Fe14B. Operational parameters might slightly deviate from the simulation results. Treat these calculations as a reference point during assembly planning.
Table 1: Static force (pull vs distance) - 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 lbs
880.0 g / 8.6 N
|
safe |
| 1 mm |
1882 Gs
188.2 mT
|
0.41 kg / 0.91 lbs
413.1 g / 4.1 N
|
safe |
| 2 mm |
1175 Gs
117.5 mT
|
0.16 kg / 0.35 lbs
161.0 g / 1.6 N
|
safe |
| 3 mm |
746 Gs
74.6 mT
|
0.06 kg / 0.14 lbs
64.9 g / 0.6 N
|
safe |
| 5 mm |
337 Gs
33.7 mT
|
0.01 kg / 0.03 lbs
13.3 g / 0.1 N
|
safe |
| 10 mm |
77 Gs
7.7 mT
|
0.00 kg / 0.00 lbs
0.7 g / 0.0 N
|
safe |
| 15 mm |
27 Gs
2.7 mT
|
0.00 kg / 0.00 lbs
0.1 g / 0.0 N
|
safe |
| 20 mm |
12 Gs
1.2 mT
|
0.00 kg / 0.00 lbs
0.0 g / 0.0 N
|
safe |
| 30 mm |
4 Gs
0.4 mT
|
0.00 kg / 0.00 lbs
0.0 g / 0.0 N
|
safe |
| 50 mm |
1 Gs
0.1 mT
|
0.00 kg / 0.00 lbs
0.0 g / 0.0 N
|
safe |
Table 2: Vertical force (wall)
MPL 10x4x1.5 / N38
| Distance (mm) | Friction coefficient | Pull Force (kg/lbs/g/N) |
|---|---|---|
| 0 mm | Stal (~0.2) |
0.18 kg / 0.39 lbs
176.0 g / 1.7 N
|
| 1 mm | Stal (~0.2) |
0.08 kg / 0.18 lbs
82.0 g / 0.8 N
|
| 2 mm | Stal (~0.2) |
0.03 kg / 0.07 lbs
32.0 g / 0.3 N
|
| 3 mm | Stal (~0.2) |
0.01 kg / 0.03 lbs
12.0 g / 0.1 N
|
| 5 mm | Stal (~0.2) |
0.00 kg / 0.00 lbs
2.0 g / 0.0 N
|
| 10 mm | Stal (~0.2) |
0.00 kg / 0.00 lbs
0.0 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 (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 lbs
264.0 g / 2.6 N
|
| Painted steel (standard) |
µ = 0.2
20% Nominalnej Siły
|
0.18 kg / 0.39 lbs
176.0 g / 1.7 N
|
| Oily/slippery steel |
µ = 0.1
10% Nominalnej Siły
|
0.09 kg / 0.19 lbs
88.0 g / 0.9 N
|
| Magnet with anti-slip rubber |
µ = 0.5
50% Nominalnej Siły
|
0.44 kg / 0.97 lbs
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 lbs
88.0 g / 0.9 N
|
| 1 mm |
|
0.22 kg / 0.49 lbs
220.0 g / 2.2 N
|
| 2 mm |
|
0.44 kg / 0.97 lbs
440.0 g / 4.3 N
|
| 3 mm |
|
0.66 kg / 1.46 lbs
660.0 g / 6.5 N
|
| 5 mm |
|
0.88 kg / 1.94 lbs
880.0 g / 8.6 N
|
| 10 mm |
|
0.88 kg / 1.94 lbs
880.0 g / 8.6 N
|
| 11 mm |
|
0.88 kg / 1.94 lbs
880.0 g / 8.6 N
|
| 12 mm |
|
0.88 kg / 1.94 lbs
880.0 g / 8.6 N
|
Table 5: Thermal stability (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 lbs
880.0 g / 8.6 N
|
OK |
| 40 °C | -2.2% |
0.86 kg / 1.90 lbs
860.6 g / 8.4 N
|
OK |
| 60 °C | -4.4% |
0.84 kg / 1.85 lbs
841.3 g / 8.3 N
|
|
| 80 °C | -6.6% |
0.82 kg / 1.81 lbs
821.9 g / 8.1 N
|
|
| 100 °C | -28.8% |
0.63 kg / 1.38 lbs
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 Force (kg/lbs/g/N) | Repulsion (kg/lbs) (N-N) |
|---|---|---|---|
| 0 mm |
1.86 kg / 4.10 lbs
4 229 Gs
|
0.28 kg / 0.62 lbs
279 g / 2.7 N
|
N/A |
| 1 mm |
1.34 kg / 2.95 lbs
4 661 Gs
|
0.20 kg / 0.44 lbs
201 g / 2.0 N
|
1.21 kg / 2.66 lbs
~0 Gs
|
| 2 mm |
0.87 kg / 1.93 lbs
3 764 Gs
|
0.13 kg / 0.29 lbs
131 g / 1.3 N
|
0.79 kg / 1.73 lbs
~0 Gs
|
| 3 mm |
0.55 kg / 1.21 lbs
2 978 Gs
|
0.08 kg / 0.18 lbs
82 g / 0.8 N
|
0.49 kg / 1.09 lbs
~0 Gs
|
| 5 mm |
0.21 kg / 0.47 lbs
1 864 Gs
|
0.03 kg / 0.07 lbs
32 g / 0.3 N
|
0.19 kg / 0.43 lbs
~0 Gs
|
| 10 mm |
0.03 kg / 0.06 lbs
675 Gs
|
0.00 kg / 0.01 lbs
4 g / 0.0 N
|
0.03 kg / 0.06 lbs
~0 Gs
|
| 20 mm |
0.00 kg / 0.00 lbs
154 Gs
|
0.00 kg / 0.00 lbs
0 g / 0.0 N
|
0.00 kg / 0.00 lbs
~0 Gs
|
| 50 mm |
0.00 kg / 0.00 lbs
13 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
8 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
5 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
3 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
2 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
2 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 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 |
| Timepiece | 20 Gs (2.0 mT) | 2.0 cm |
| Mobile device | 40 Gs (4.0 mT) | 1.5 cm |
| Remote | 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 (cracking risk) - warning
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: Surface protection spec
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 (Flux)
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. Shear force
*Note: On a vertical wall, the magnet holds merely ~20% of its perpendicular strength.
2. Steel saturation
*Thin metal sheet (e.g. computer case) drastically reduces the holding force.
3. Thermal stability
*For N38 material, 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
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.
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 offers
Strengths as well as weaknesses of Nd2Fe14B magnets.
Pros
- Their power remains stable, and after approximately ten years it drops only by ~1% (theoretically),
- They possess excellent resistance to magnetism drop when exposed to external magnetic sources,
- A magnet with a metallic silver surface looks better,
- The surface of neodymium magnets generates a powerful magnetic field – this is one of their assets,
- Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and can work (depending on the form) even at a temperature of 230°C or more...
- Due to the ability of flexible forming and customization to individualized projects, NdFeB magnets can be created in a wide range of geometric configurations, which increases their versatility,
- Wide application in modern industrial fields – they are commonly used in computer drives, drive modules, precision medical tools, and technologically advanced constructions.
- Relatively small size with high pulling force – neodymium magnets offer high power in compact dimensions, which enables their usage in miniature devices
Weaknesses
- Susceptibility to cracking is one of their disadvantages. Upon intense impact they can fracture. We recommend keeping them in a special holder, which not only secures them against impacts but also increases their durability
- Neodymium magnets lose their force 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
- Magnets exposed to a humid environment can rust. Therefore when using outdoors, we recommend using waterproof magnets made of rubber, plastic or other material resistant to moisture
- We recommend cover - magnetic mechanism, due to difficulties in creating nuts inside the magnet and complex forms.
- Possible danger related to microscopic parts of magnets are risky, in case of ingestion, which is particularly important in the aspect of protecting the youngest. Additionally, small elements of these magnets are able to disrupt the diagnostic process medical after entering the body.
- Higher cost of purchase is one of the disadvantages compared to ceramic magnets, especially in budget applications
Holding force characteristics
Detachment force of the magnet in optimal conditions – what affects it?
- using a base made of low-carbon steel, functioning as a magnetic yoke
- possessing a thickness of min. 10 mm to ensure full flux closure
- characterized by even structure
- under conditions of no distance (metal-to-metal)
- during detachment in a direction vertical to the plane
- in temp. approx. 20°C
Practical aspects of lifting capacity – factors
- Gap (between the magnet and the metal), as even a microscopic distance (e.g. 0.5 mm) can cause a drastic drop in lifting capacity by up to 50% (this also applies to paint, rust or debris).
- Force direction – declared lifting capacity refers to pulling vertically. When applying parallel force, the magnet holds significantly lower power (typically approx. 20-30% of maximum force).
- Metal thickness – the thinner the sheet, the weaker the hold. Magnetic flux passes through the material instead of generating force.
- Material composition – different alloys attracts identically. Alloy additives weaken the attraction effect.
- Surface finish – ideal contact is obtained only on polished steel. Any scratches and bumps reduce the real contact area, weakening the magnet.
- Temperature – heating the magnet results in weakening of induction. Check the thermal limit for a given model.
Lifting capacity was determined with the use of a polished steel plate of suitable thickness (min. 20 mm), under perpendicular detachment force, whereas under attempts to slide the magnet the load capacity is reduced by as much as 5 times. In addition, even a small distance between the magnet’s surface and the plate lowers the lifting capacity.
Safety rules for work with neodymium magnets
Swallowing risk
NdFeB magnets are not intended for children. Accidental ingestion of multiple magnets can lead to them pinching intestinal walls, which poses a critical condition and necessitates urgent medical intervention.
Permanent damage
Keep cool. Neodymium magnets are sensitive to heat. If you require resistance above 80°C, inquire about special high-temperature series (H, SH, UH).
Danger to pacemakers
Warning for patients: Powerful magnets affect electronics. Keep at least 30 cm distance or ask another person to handle the magnets.
Electronic hazard
Intense magnetic fields can erase data on credit cards, HDDs, and storage devices. Maintain a gap of at least 10 cm.
Risk of cracking
Despite metallic appearance, the material is brittle and cannot withstand shocks. Avoid impacts, as the magnet may crumble into sharp, dangerous pieces.
Allergic reactions
It is widely known that nickel (the usual finish) is a potent allergen. For allergy sufferers, prevent direct skin contact and select coated magnets.
Impact on smartphones
An intense magnetic field disrupts the functioning of magnetometers in phones and GPS navigation. Do not bring magnets close to a smartphone to prevent damaging the sensors.
Physical harm
Big blocks can break fingers in a fraction of a second. Under no circumstances put your hand betwixt two strong magnets.
Respect the power
Handle with care. Neodymium magnets act from a distance and snap with huge force, often faster than you can react.
Mechanical processing
Dust generated during grinding of magnets is self-igniting. Do not drill into magnets without proper cooling and knowledge.
