MPL 10x10x10 / N38 - lamellar magnet
lamellar magnet
Catalog no 020110
GTIN/EAN: 5906301811169
length
10 mm [±0,1 mm]
Width
10 mm [±0,1 mm]
Height
10 mm [±0,1 mm]
Weight
7.5 g
Magnetization Direction
↑ axial
Load capacity
3.84 kg / 37.71 N
Magnetic Induction
539.91 mT / 5399 Gs
Coating
[NiCuNi] Nickel
5.29 ZŁ with VAT / pcs + price for transport
4.30 ZŁ net + 23% VAT / pcs
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Physical properties - MPL 10x10x10 / N38 - lamellar magnet
Specification / characteristics - MPL 10x10x10 / N38 - lamellar magnet
| properties | values |
|---|---|
| Cat. no. | 020110 |
| GTIN/EAN | 5906301811169 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| length | 10 mm [±0,1 mm] |
| Width | 10 mm [±0,1 mm] |
| Height | 10 mm [±0,1 mm] |
| Weight | 7.5 g |
| Magnetization Direction | ↑ axial |
| Load capacity ~ ? | 3.84 kg / 37.71 N |
| Magnetic Induction ~ ? | 539.91 mT / 5399 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 simulation of the magnet - technical parameters
These information represent the direct effect of a mathematical simulation. Results are based on algorithms for the material Nd2Fe14B. Real-world conditions may deviate from the simulation results. Treat these calculations as a supplementary guide when designing systems.
Table 1: Static pull force (pull vs gap) - power drop
MPL 10x10x10 / N38
| Distance (mm) | Induction (Gauss) / mT | Pull Force (kg/lbs/g/N) | Risk Status |
|---|---|---|---|
| 0 mm |
5395 Gs
539.5 mT
|
3.84 kg / 8.47 lbs
3840.0 g / 37.7 N
|
warning |
| 1 mm |
4423 Gs
442.3 mT
|
2.58 kg / 5.69 lbs
2580.1 g / 25.3 N
|
warning |
| 2 mm |
3516 Gs
351.6 mT
|
1.63 kg / 3.60 lbs
1631.0 g / 16.0 N
|
safe |
| 3 mm |
2751 Gs
275.1 mT
|
1.00 kg / 2.20 lbs
998.0 g / 9.8 N
|
safe |
| 5 mm |
1671 Gs
167.1 mT
|
0.37 kg / 0.81 lbs
368.5 g / 3.6 N
|
safe |
| 10 mm |
562 Gs
56.2 mT
|
0.04 kg / 0.09 lbs
41.7 g / 0.4 N
|
safe |
| 15 mm |
244 Gs
24.4 mT
|
0.01 kg / 0.02 lbs
7.8 g / 0.1 N
|
safe |
| 20 mm |
126 Gs
12.6 mT
|
0.00 kg / 0.00 lbs
2.1 g / 0.0 N
|
safe |
| 30 mm |
46 Gs
4.6 mT
|
0.00 kg / 0.00 lbs
0.3 g / 0.0 N
|
safe |
| 50 mm |
12 Gs
1.2 mT
|
0.00 kg / 0.00 lbs
0.0 g / 0.0 N
|
safe |
Table 2: Vertical load (wall)
MPL 10x10x10 / N38
| Distance (mm) | Friction coefficient | Pull Force (kg/lbs/g/N) |
|---|---|---|
| 0 mm | Stal (~0.2) |
0.77 kg / 1.69 lbs
768.0 g / 7.5 N
|
| 1 mm | Stal (~0.2) |
0.52 kg / 1.14 lbs
516.0 g / 5.1 N
|
| 2 mm | Stal (~0.2) |
0.33 kg / 0.72 lbs
326.0 g / 3.2 N
|
| 3 mm | Stal (~0.2) |
0.20 kg / 0.44 lbs
200.0 g / 2.0 N
|
| 5 mm | Stal (~0.2) |
0.07 kg / 0.16 lbs
74.0 g / 0.7 N
|
| 10 mm | Stal (~0.2) |
0.01 kg / 0.02 lbs
8.0 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 10x10x10 / N38
| Surface type | Friction coefficient / % Mocy | Max load (kg/lbs/g/N) |
|---|---|---|
| Raw steel |
µ = 0.3
30% Nominalnej Siły
|
1.15 kg / 2.54 lbs
1152.0 g / 11.3 N
|
| Painted steel (standard) |
µ = 0.2
20% Nominalnej Siły
|
0.77 kg / 1.69 lbs
768.0 g / 7.5 N
|
| Oily/slippery steel |
µ = 0.1
10% Nominalnej Siły
|
0.38 kg / 0.85 lbs
384.0 g / 3.8 N
|
| Magnet with anti-slip rubber |
µ = 0.5
50% Nominalnej Siły
|
1.92 kg / 4.23 lbs
1920.0 g / 18.8 N
|
Table 4: Steel thickness (substrate influence) - sheet metal selection
MPL 10x10x10 / N38
| Steel thickness (mm) | % power | Real pull force (kg/lbs/g/N) |
|---|---|---|
| 0.5 mm |
|
0.38 kg / 0.85 lbs
384.0 g / 3.8 N
|
| 1 mm |
|
0.96 kg / 2.12 lbs
960.0 g / 9.4 N
|
| 2 mm |
|
1.92 kg / 4.23 lbs
1920.0 g / 18.8 N
|
| 3 mm |
|
2.88 kg / 6.35 lbs
2880.0 g / 28.3 N
|
| 5 mm |
|
3.84 kg / 8.47 lbs
3840.0 g / 37.7 N
|
| 10 mm |
|
3.84 kg / 8.47 lbs
3840.0 g / 37.7 N
|
| 11 mm |
|
3.84 kg / 8.47 lbs
3840.0 g / 37.7 N
|
| 12 mm |
|
3.84 kg / 8.47 lbs
3840.0 g / 37.7 N
|
Table 5: Thermal resistance (stability) - power drop
MPL 10x10x10 / N38
| Ambient temp. (°C) | Power loss | Remaining pull (kg/lbs/g/N) | Status |
|---|---|---|---|
| 20 °C | 0.0% |
3.84 kg / 8.47 lbs
3840.0 g / 37.7 N
|
OK |
| 40 °C | -2.2% |
3.76 kg / 8.28 lbs
3755.5 g / 36.8 N
|
OK |
| 60 °C | -4.4% |
3.67 kg / 8.09 lbs
3671.0 g / 36.0 N
|
OK |
| 80 °C | -6.6% |
3.59 kg / 7.91 lbs
3586.6 g / 35.2 N
|
|
| 100 °C | -28.8% |
2.73 kg / 6.03 lbs
2734.1 g / 26.8 N
|
Table 6: Magnet-Magnet interaction (repulsion) - forces in the system
MPL 10x10x10 / N38
| Gap (mm) | Attraction (kg/lbs) (N-S) | Shear Force (kg/lbs/g/N) | Repulsion (kg/lbs) (N-N) |
|---|---|---|---|
| 0 mm |
17.95 kg / 39.56 lbs
5 957 Gs
|
2.69 kg / 5.93 lbs
2692 g / 26.4 N
|
N/A |
| 1 mm |
14.86 kg / 32.77 lbs
9 821 Gs
|
2.23 kg / 4.92 lbs
2230 g / 21.9 N
|
13.38 kg / 29.49 lbs
~0 Gs
|
| 2 mm |
12.06 kg / 26.58 lbs
8 845 Gs
|
1.81 kg / 3.99 lbs
1809 g / 17.7 N
|
10.85 kg / 23.93 lbs
~0 Gs
|
| 3 mm |
9.64 kg / 21.26 lbs
7 909 Gs
|
1.45 kg / 3.19 lbs
1446 g / 14.2 N
|
8.68 kg / 19.13 lbs
~0 Gs
|
| 5 mm |
5.98 kg / 13.18 lbs
6 228 Gs
|
0.90 kg / 1.98 lbs
897 g / 8.8 N
|
5.38 kg / 11.86 lbs
~0 Gs
|
| 10 mm |
1.72 kg / 3.80 lbs
3 343 Gs
|
0.26 kg / 0.57 lbs
258 g / 2.5 N
|
1.55 kg / 3.42 lbs
~0 Gs
|
| 20 mm |
0.20 kg / 0.43 lbs
1 125 Gs
|
0.03 kg / 0.06 lbs
29 g / 0.3 N
|
0.18 kg / 0.39 lbs
~0 Gs
|
| 50 mm |
0.00 kg / 0.01 lbs
146 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
92 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
62 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
43 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
32 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
24 Gs
|
0.00 kg / 0.00 lbs
0 g / 0.0 N
|
0.00 kg / 0.00 lbs
~0 Gs
|
Table 7: Safety (HSE) (implants) - precautionary measures
MPL 10x10x10 / N38
| Object / Device | Limit (Gauss) / mT | Safe distance |
|---|---|---|
| Pacemaker | 5 Gs (0.5 mT) | 7.0 cm |
| Hearing aid | 10 Gs (1.0 mT) | 5.5 cm |
| Timepiece | 20 Gs (2.0 mT) | 4.5 cm |
| Phone / Smartphone | 40 Gs (4.0 mT) | 3.5 cm |
| Remote | 50 Gs (5.0 mT) | 3.0 cm |
| Payment card | 400 Gs (40.0 mT) | 1.5 cm |
| HDD hard drive | 600 Gs (60.0 mT) | 1.0 cm |
Table 8: Collisions (kinetic energy) - warning
MPL 10x10x10 / N38
| Start from (mm) | Speed (km/h) | Energy (J) | Predicted outcome |
|---|---|---|---|
| 10 mm |
22.97 km/h
(6.38 m/s)
|
0.15 J | |
| 30 mm |
39.53 km/h
(10.98 m/s)
|
0.45 J | |
| 50 mm |
51.03 km/h
(14.17 m/s)
|
0.75 J | |
| 100 mm |
72.16 km/h
(20.05 m/s)
|
1.51 J |
Table 9: Surface protection spec
MPL 10x10x10 / 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 10x10x10 / N38
| Parameter | Value | SI Unit / Description |
|---|---|---|
| Magnetic Flux | 5 504 Mx | 55.0 µWb |
| Pc Coefficient | 0.84 | High (Stable) |
Table 11: Physics of underwater searching
MPL 10x10x10 / N38
| Environment | Effective steel pull | Effect |
|---|---|---|
| Air (land) | 3.84 kg | Standard |
| Water (riverbed) |
4.40 kg
(+0.56 kg buoyancy gain)
|
+14.5% |
1. Vertical hold
*Note: On a vertical wall, the magnet retains merely a fraction of its max power.
2. Plate thickness effect
*Thin metal sheet (e.g. computer case) significantly reduces the holding force.
3. Power loss vs temp
*For N38 grade, the safety limit is 80°C.
4. Demagnetization curve and operating point (B-H)
chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.84
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 |
View also deals
Advantages and disadvantages of rare earth magnets.
Benefits
- Their magnetic field is maintained, and after around ten years it drops only by ~1% (theoretically),
- Neodymium magnets remain exceptionally resistant to loss of magnetic properties caused by external field sources,
- By applying a lustrous coating of nickel, the element presents an elegant look,
- They show high magnetic induction at the operating surface, which increases their power,
- Thanks to resistance to high temperature, they are capable of working (depending on the form) even at temperatures up to 230°C and higher...
- Possibility of precise modeling as well as adjusting to individual needs,
- Fundamental importance in innovative solutions – they are commonly used in data components, electric motors, medical devices, and industrial machines.
- Thanks to their power density, small magnets offer high operating force, occupying minimum space,
Weaknesses
- They are fragile upon too strong impacts. To avoid cracks, it is worth protecting magnets in special housings. Such protection not only protects the magnet but also improves its resistance to damage
- Neodymium magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of power (a factor is the shape as well as dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are very resistant to heat
- They rust in a humid environment. For use outdoors we recommend using waterproof magnets e.g. in rubber, plastic
- We suggest cover - magnetic mechanism, due to difficulties in producing threads inside the magnet and complicated forms.
- Health risk to health – tiny shards of magnets can be dangerous, when accidentally swallowed, which becomes key in the context of child health protection. It is also worth noting that small components of these devices are able to complicate diagnosis medical when they are in the body.
- High unit price – neodymium magnets cost more than other types of magnets (e.g. ferrite), which hinders application in large quantities
Holding force characteristics
Best holding force of the magnet in ideal parameters – what it depends on?
- on a plate made of mild steel, effectively closing the magnetic flux
- whose transverse dimension is min. 10 mm
- with an ground contact surface
- with direct contact (without coatings)
- during detachment in a direction vertical to the mounting surface
- in neutral thermal conditions
Determinants of practical lifting force of a magnet
- Distance – the presence of any layer (rust, tape, gap) interrupts the magnetic circuit, which reduces power rapidly (even by 50% at 0.5 mm).
- Loading method – declared lifting capacity refers to pulling vertically. When attempting to slide, the magnet exhibits much less (typically approx. 20-30% of maximum force).
- Element thickness – to utilize 100% power, the steel must be sufficiently thick. Thin sheet limits the attraction force (the magnet "punches through" it).
- Steel type – low-carbon steel attracts best. Higher carbon content lower magnetic properties and holding force.
- Surface structure – the more even the plate, the larger the contact zone and higher the lifting capacity. Roughness acts like micro-gaps.
- Thermal environment – heating the magnet results in weakening of force. Check the thermal limit for a given model.
Lifting capacity was measured by applying a polished steel plate of optimal thickness (min. 20 mm), under perpendicular detachment force, however under shearing force the lifting capacity is smaller. Additionally, even a minimal clearance between the magnet and the plate lowers the lifting capacity.
Safe handling of neodymium magnets
Handling guide
Before use, read the rules. Sudden snapping can break the magnet or injure your hand. Be predictive.
Fire risk
Fire hazard: Neodymium dust is highly flammable. Do not process magnets without safety gear as this risks ignition.
Nickel allergy
Allergy Notice: The nickel-copper-nickel coating consists of nickel. If skin irritation appears, immediately stop working with magnets and wear gloves.
Impact on smartphones
A strong magnetic field negatively affects the operation of magnetometers in smartphones and navigation systems. Do not bring magnets near a device to avoid breaking the sensors.
Bone fractures
Mind your fingers. Two large magnets will join immediately with a force of several hundred kilograms, destroying anything in their path. Be careful!
Danger to pacemakers
Warning for patients: Powerful magnets affect medical devices. Maintain minimum 30 cm distance or ask another person to handle the magnets.
Data carriers
Very strong magnetic fields can destroy records on credit cards, HDDs, and storage devices. Keep a distance of min. 10 cm.
Danger to the youngest
Absolutely store magnets out of reach of children. Choking hazard is significant, and the effects of magnets connecting inside the body are very dangerous.
Magnets are brittle
Despite the nickel coating, the material is brittle and cannot withstand shocks. Do not hit, as the magnet may crumble into sharp, dangerous pieces.
Permanent damage
Monitor thermal conditions. Exposing the magnet above 80 degrees Celsius will permanently weaken its properties and strength.
