MPL 11x11x1 / N38 - lamellar magnet
lamellar magnet
Catalog no 020116
GTIN/EAN: 5906301811220
- length
- 11 mm [±0,1 mm]
- Width
- 11 mm [±0,1 mm]
- Height
- 1 mm [±0,1 mm]
- Weight
- 0.91 g
- Magnetization Direction
- ↑ axial
- Coating
- [NiCuNi] Nickel
How we measure these parameters — certificates and measurements
0.710 zł net / pcs
0.873 zł with VAT (23% VAT) / pcs
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 of the product - MPL 11x11x1 / N38 - lamellar magnet
Specification / characteristics - MPL 11x11x1 / N38 - lamellar magnet
| properties | values |
|---|---|
| Cat. no. | 020116 |
| GTIN/EAN | 5906301811220 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| length | 11 mm [±0,1 mm] |
| Width | 11 mm [±0,1 mm] |
| Height | 1 mm [±0,1 mm] |
| Weight | 0.91 g |
| Magnetization Direction | ↑ axial |
| Load capacity ~ ? | 0.43 kg / 4.24 N |
| Magnetic Induction ~ ? | 100.10 mT / 1001 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 |
Engineering simulation of the product - data
The following information represent the direct effect of a engineering calculation. Values rely on algorithms for the class Nd2Fe14B. Actual performance may differ from theoretical values. Use these calculations as a supplementary guide during assembly planning.
Table 1: Static force (force vs gap) - characteristics
MPL 11x11x1 / N38
| Distance (mm) | Induction (Gauss) / mT | Pull Force (kg/lbs/g/N) | Risk Status |
|---|---|---|---|
| 0 mm |
1001 Gs
100.1 mT
|
0.43 kg / 0.95 pounds
430.0 g / 4.2 N
|
safe |
| 1 mm |
925 Gs
92.5 mT
|
0.37 kg / 0.81 pounds
367.7 g / 3.6 N
|
safe |
| 2 mm |
800 Gs
80.0 mT
|
0.27 kg / 0.61 pounds
274.9 g / 2.7 N
|
safe |
| 3 mm |
659 Gs
65.9 mT
|
0.19 kg / 0.41 pounds
186.5 g / 1.8 N
|
safe |
| 5 mm |
415 Gs
41.5 mT
|
0.07 kg / 0.16 pounds
74.0 g / 0.7 N
|
safe |
| 10 mm |
130 Gs
13.0 mT
|
0.01 kg / 0.02 pounds
7.3 g / 0.1 N
|
safe |
| 15 mm |
51 Gs
5.1 mT
|
0.00 kg / 0.00 pounds
1.1 g / 0.0 N
|
safe |
| 20 mm |
24 Gs
2.4 mT
|
0.00 kg / 0.00 pounds
0.3 g / 0.0 N
|
safe |
| 30 mm |
8 Gs
0.8 mT
|
0.00 kg / 0.00 pounds
0.0 g / 0.0 N
|
safe |
| 50 mm |
2 Gs
0.2 mT
|
0.00 kg / 0.00 pounds
0.0 g / 0.0 N
|
safe |
Table 2: Sliding capacity (wall)
MPL 11x11x1 / N38
| Distance (mm) | Friction coefficient | Pull Force (kg/lbs/g/N) |
|---|---|---|
| 0 mm | Stal (~0.2) |
0.09 kg / 0.19 pounds
86.0 g / 0.8 N
|
| 1 mm | Stal (~0.2) |
0.07 kg / 0.16 pounds
74.0 g / 0.7 N
|
| 2 mm | Stal (~0.2) |
0.05 kg / 0.12 pounds
54.0 g / 0.5 N
|
| 3 mm | Stal (~0.2) |
0.04 kg / 0.08 pounds
38.0 g / 0.4 N
|
| 5 mm | Stal (~0.2) |
0.01 kg / 0.03 pounds
14.0 g / 0.1 N
|
| 10 mm | Stal (~0.2) |
0.00 kg / 0.00 pounds
2.0 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: Vertical assembly (shearing) - behavior on slippery surfaces
MPL 11x11x1 / N38
| Surface type | Friction coefficient / % Mocy | Max load (kg/lbs/g/N) |
|---|---|---|
| Raw steel |
µ = 0.3
30% Nominalnej Siły
|
0.13 kg / 0.28 pounds
129.0 g / 1.3 N
|
| Painted steel (standard) |
µ = 0.2
20% Nominalnej Siły
|
0.09 kg / 0.19 pounds
86.0 g / 0.8 N
|
| Oily/slippery steel |
µ = 0.1
10% Nominalnej Siły
|
0.04 kg / 0.09 pounds
43.0 g / 0.4 N
|
| Magnet with anti-slip rubber |
µ = 0.5
50% Nominalnej Siły
|
0.22 kg / 0.47 pounds
215.0 g / 2.1 N
|
Table 4: Steel thickness (substrate influence) - sheet metal selection
MPL 11x11x1 / N38
| Steel thickness (mm) | % power | Real pull force (kg/lbs/g/N) |
|---|---|---|
| 0.5 mm |
|
0.04 kg / 0.09 pounds
43.0 g / 0.4 N
|
| 1 mm |
|
0.11 kg / 0.24 pounds
107.5 g / 1.1 N
|
| 2 mm |
|
0.22 kg / 0.47 pounds
215.0 g / 2.1 N
|
| 3 mm |
|
0.32 kg / 0.71 pounds
322.5 g / 3.2 N
|
| 5 mm |
|
0.43 kg / 0.95 pounds
430.0 g / 4.2 N
|
| 10 mm |
|
0.43 kg / 0.95 pounds
430.0 g / 4.2 N
|
| 11 mm |
|
0.43 kg / 0.95 pounds
430.0 g / 4.2 N
|
| 12 mm |
|
0.43 kg / 0.95 pounds
430.0 g / 4.2 N
|
Table 5: Thermal resistance (stability) - thermal limit
MPL 11x11x1 / N38
| Ambient temp. (°C) | Power loss | Remaining pull (kg/lbs/g/N) | Status |
|---|---|---|---|
| 20 °C | 0.0% |
0.43 kg / 0.95 pounds
430.0 g / 4.2 N
|
OK |
| 40 °C | -2.2% |
0.42 kg / 0.93 pounds
420.5 g / 4.1 N
|
OK |
| 60 °C | -4.4% |
0.41 kg / 0.91 pounds
411.1 g / 4.0 N
|
|
| 80 °C | -6.6% |
0.40 kg / 0.89 pounds
401.6 g / 3.9 N
|
|
| 100 °C | -28.8% |
0.31 kg / 0.67 pounds
306.2 g / 3.0 N
|
Table 6: Two magnets (attraction) - forces in the system
MPL 11x11x1 / N38
| Gap (mm) | Attraction (kg/lbs) (N-S) | Lateral Force (kg/lbs/g/N) | Repulsion (kg/lbs) (N-N) |
|---|---|---|---|
| 0 mm |
0.75 kg / 1.65 pounds
1 925 Gs
|
0.11 kg / 0.25 pounds
112 g / 1.1 N
|
N/A |
| 1 mm |
0.70 kg / 1.55 pounds
1 943 Gs
|
0.11 kg / 0.23 pounds
106 g / 1.0 N
|
0.63 kg / 1.40 pounds
~0 Gs
|
| 2 mm |
0.64 kg / 1.41 pounds
1 851 Gs
|
0.10 kg / 0.21 pounds
96 g / 0.9 N
|
0.58 kg / 1.27 pounds
~0 Gs
|
| 3 mm |
0.56 kg / 1.24 pounds
1 734 Gs
|
0.08 kg / 0.19 pounds
84 g / 0.8 N
|
0.50 kg / 1.11 pounds
~0 Gs
|
| 5 mm |
0.40 kg / 0.88 pounds
1 460 Gs
|
0.06 kg / 0.13 pounds
60 g / 0.6 N
|
0.36 kg / 0.79 pounds
~0 Gs
|
| 10 mm |
0.13 kg / 0.28 pounds
831 Gs
|
0.02 kg / 0.04 pounds
19 g / 0.2 N
|
0.12 kg / 0.26 pounds
~0 Gs
|
| 20 mm |
0.01 kg / 0.03 pounds
261 Gs
|
0.00 kg / 0.00 pounds
2 g / 0.0 N
|
0.01 kg / 0.03 pounds
~0 Gs
|
| 50 mm |
0.00 kg / 0.00 pounds
26 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
16 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
10 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
7 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
5 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
4 Gs
|
0.00 kg / 0.00 pounds
0 g / 0.0 N
|
0.00 kg / 0.00 pounds
~0 Gs
|
Table 7: Safety (HSE) (implants) - precautionary measures
MPL 11x11x1 / N38
| Object / Device | Limit (Gauss) / mT | Safe distance |
|---|---|---|
| Pacemaker | 5 Gs (0.5 mT) | 4.0 cm |
| Hearing aid | 10 Gs (1.0 mT) | 3.0 cm |
| Mechanical watch | 20 Gs (2.0 mT) | 2.5 cm |
| Mobile device | 40 Gs (4.0 mT) | 2.0 cm |
| Car key | 50 Gs (5.0 mT) | 2.0 cm |
| Payment card | 400 Gs (40.0 mT) | 1.0 cm |
| HDD hard drive | 600 Gs (60.0 mT) | 0.5 cm |
Table 8: Collisions (cracking risk) - collision effects
MPL 11x11x1 / N38
| Start from (mm) | Speed (km/h) | Energy (J) | Predicted outcome |
|---|---|---|---|
| 10 mm |
19.50 km/h
(5.42 m/s)
|
0.01 J | |
| 30 mm |
19.63 km/h
(5.45 m/s)
|
0.01 J | |
| 50 mm |
19.57 km/h
(5.44 m/s)
|
0.01 J | |
| 100 mm |
19.65 km/h
(5.46 m/s)
|
0.01 J |
Table 9: Surface protection spec
MPL 11x11x1 / 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 (Flux)
MPL 11x11x1 / N38
| Parameter | Value | SI Unit / Description |
|---|---|---|
| Magnetic Flux | 1 627 Mx | 16.3 µWb |
| Pc Coefficient | 0.13 | Low (Flat) |
Table 11: Submerged application
MPL 11x11x1 / N38
| Environment | Effective steel pull | Effect |
|---|---|---|
| Air (land) | 0.43 kg | Standard |
| Water (riverbed) |
0.49 kg
(+0.06 kg buoyancy gain)
|
+14.5% |
1. Wall mount (shear)
*Warning: On a vertical wall, the magnet retains only approx. 20-30% of its nominal pull.
2. Steel thickness impact
*Thin metal sheet (e.g. computer case) drastically limits the holding force.
3. Thermal stability
*For N38 material, the critical limit is 80°C.
4. Demagnetization curve and operating point (B-H)
chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.13
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.
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% |
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
Strengths as well as weaknesses of Nd2Fe14B magnets.
Benefits
- Their magnetic field remains stable, and after approximately 10 years it drops only by ~1% (theoretically),
- Magnets effectively resist against demagnetization caused by foreign field sources,
- Thanks to the glossy finish, the plating of Ni-Cu-Ni, gold, or silver-plated gives an aesthetic appearance,
- The surface of neodymium magnets generates a concentrated magnetic field – this is a key feature,
- Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and can work (depending on the shape) even at a temperature of 230°C or more...
- Possibility of exact machining and adjusting to defined requirements,
- Fundamental importance in modern industrial fields – they are commonly used in magnetic memories, drive modules, diagnostic systems, as well as other advanced devices.
- Thanks to their power density, small magnets offer high operating force, occupying minimum space,
Limitations
- At very strong impacts they can break, therefore we advise placing them in steel cases. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
- Neodymium magnets lose their power under the influence of heating. As soon as 80°C is exceeded, many of them start losing their power. Therefore, we recommend our special magnets marked [AH], which maintain stability even at temperatures up to 230°C
- Due to the susceptibility of magnets to corrosion in a humid environment, we recommend using waterproof magnets made of rubber, plastic or other material resistant to moisture, when using outdoors
- Limited possibility of making nuts in the magnet and complex forms - preferred is casing - mounting mechanism.
- Possible danger to health – tiny shards of magnets can be dangerous, if swallowed, which becomes key in the context of child safety. Additionally, small elements of these magnets are able to be problematic in diagnostics medical when they are in the body.
- High unit price – neodymium magnets have a higher price than other types of magnets (e.g. ferrite), which can limit application in large quantities
Lifting parameters
Magnetic strength at its maximum – what affects it?
- on a plate made of mild steel, effectively closing the magnetic field
- with a thickness of at least 10 mm
- with a plane perfectly flat
- under conditions of ideal adhesion (metal-to-metal)
- during detachment in a direction perpendicular to the mounting surface
- at ambient temperature approx. 20 degrees Celsius
Impact of factors on magnetic holding capacity in practice
- Clearance – the presence of foreign body (rust, tape, air) acts as an insulator, which reduces capacity rapidly (even by 50% at 0.5 mm).
- Pull-off angle – note that the magnet holds strongest perpendicularly. Under sliding down, the holding force drops significantly, often to levels of 20-30% of the maximum value.
- Base massiveness – too thin sheet does not accept the full field, causing part of the flux to be lost to the other side.
- Material type – the best choice is high-permeability steel. Cast iron may attract less.
- Base smoothness – the more even the plate, the larger the contact zone and stronger the hold. Roughness acts like micro-gaps.
- Thermal factor – high temperature reduces pulling force. Exceeding the limit temperature can permanently demagnetize the magnet.
Lifting capacity testing was conducted on a smooth plate of optimal thickness, under perpendicular forces, in contrast under shearing force the load capacity is reduced by as much as fivefold. Moreover, even a minimal clearance between the magnet’s surface and the plate decreases the holding force.
Precautions when working with NdFeB magnets
Handling rules
Exercise caution. Neodymium magnets attract from a long distance and snap with huge force, often quicker than you can react.
Physical harm
Protect your hands. Two large magnets will snap together instantly with a force of several hundred kilograms, crushing anything in their path. Be careful!
Threat to electronics
Avoid bringing magnets close to a purse, laptop, or TV. The magnetic field can destroy these devices and erase data from cards.
Machining danger
Mechanical processing of neodymium magnets carries a risk of fire risk. Neodymium dust reacts violently with oxygen and is difficult to extinguish.
Allergic reactions
Certain individuals experience a hypersensitivity to Ni, which is the typical protective layer for neodymium magnets. Prolonged contact might lead to an allergic reaction. We strongly advise use safety gloves.
Swallowing risk
Only for adults. Tiny parts pose a choking risk, leading to serious injuries. Store away from kids and pets.
Warning for heart patients
Medical warning: Neodymium magnets can turn off pacemakers and defibrillators. Stay away if you have medical devices.
Eye protection
Beware of splinters. Magnets can fracture upon violent connection, ejecting sharp fragments into the air. We recommend safety glasses.
Heat warning
Keep cool. NdFeB magnets are susceptible to heat. If you need resistance above 80°C, ask us about special high-temperature series (H, SH, UH).
GPS and phone interference
Navigation devices and mobile phones are highly sensitive to magnetic fields. Close proximity with a powerful NdFeB magnet can decalibrate the sensors in your phone.
