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
Load capacity
0.43 kg / 4.24 N
Magnetic Induction
100.10 mT / 1001 Gs
Coating
[NiCuNi] Nickel
0.873 ZŁ with VAT / pcs + price for transport
0.710 ZŁ net + 23% VAT / pcs
bulk discounts:
Need more?
Pick up the phone and ask
+48 22 499 98 98
if you prefer get in touch by means of
contact form
the contact form page.
Specifications and form of magnets can be calculated using our
modular calculator.
Same-day processing for orders placed before 14:00.
Product card - 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 |
|---|---|---|
| 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 |
Physical modeling of the product - technical parameters
The following values are the direct effect of a mathematical analysis. Results rely on models for the class Nd2Fe14B. Real-world parameters might slightly differ from theoretical values. Please consider these calculations as a reference point for designers.
Table 1: Static force (pull vs distance) - power drop
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
|
low risk |
| 1 mm |
925 Gs
92.5 mT
|
0.37 kg / 0.81 pounds
367.7 g / 3.6 N
|
low risk |
| 2 mm |
800 Gs
80.0 mT
|
0.27 kg / 0.61 pounds
274.9 g / 2.7 N
|
low risk |
| 3 mm |
659 Gs
65.9 mT
|
0.19 kg / 0.41 pounds
186.5 g / 1.8 N
|
low risk |
| 5 mm |
415 Gs
41.5 mT
|
0.07 kg / 0.16 pounds
74.0 g / 0.7 N
|
low risk |
| 10 mm |
130 Gs
13.0 mT
|
0.01 kg / 0.02 pounds
7.3 g / 0.1 N
|
low risk |
| 15 mm |
51 Gs
5.1 mT
|
0.00 kg / 0.00 pounds
1.1 g / 0.0 N
|
low risk |
| 20 mm |
24 Gs
2.4 mT
|
0.00 kg / 0.00 pounds
0.3 g / 0.0 N
|
low risk |
| 30 mm |
8 Gs
0.8 mT
|
0.00 kg / 0.00 pounds
0.0 g / 0.0 N
|
low risk |
| 50 mm |
2 Gs
0.2 mT
|
0.00 kg / 0.00 pounds
0.0 g / 0.0 N
|
low risk |
Table 2: Shear force (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) - vertical pull
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: Material efficiency (saturation) - 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 stability (stability) - power drop
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: Magnet-Magnet interaction (repulsion) - field range
MPL 11x11x1 / N38
| Gap (mm) | Attraction (kg/lbs) (N-S) | Shear 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) (electronics) - warnings
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 |
| Remote | 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: Dynamics (cracking risk) - collision effects
MPL 11x11x1 / N38
| Start from (mm) | Speed (km/h) | Energy (J) | Predicted outcome |
|---|---|---|---|
| 10 mm |
22.15 km/h
(6.15 m/s)
|
0.02 J | |
| 30 mm |
37.97 km/h
(10.55 m/s)
|
0.05 J | |
| 50 mm |
49.02 km/h
(13.62 m/s)
|
0.08 J | |
| 100 mm |
69.33 km/h
(19.26 m/s)
|
0.17 J |
Table 9: Anti-corrosion coating durability
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 (Pc)
MPL 11x11x1 / N38
| Parameter | Value | SI Unit / Description |
|---|---|---|
| Magnetic Flux | 1 627 Mx | 16.3 µWb |
| Pc Coefficient | 0.13 | Low (Flat) |
Table 11: Physics of underwater searching
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. Shear force
*Note: On a vertical wall, the magnet holds only ~20% of its perpendicular strength.
2. Plate thickness effect
*Thin metal sheet (e.g. computer case) significantly weakens the holding force.
3. Thermal stability
*For standard magnets, 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.
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% |
Ecology and recycling (GPSR)
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
Other proposals
Strengths as well as weaknesses of Nd2Fe14B magnets.
Benefits
- They retain attractive force for nearly ten years – the loss is just ~1% (based on simulations),
- They have excellent resistance to magnetic field loss due to external fields,
- The use of an aesthetic coating of noble metals (nickel, gold, silver) causes the element to have aesthetics,
- They are known for high magnetic induction at the operating surface, which improves attraction properties,
- Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and are able to act (depending on the form) even at a temperature of 230°C or more...
- Possibility of detailed machining and optimizing to precise conditions,
- Wide application in modern technologies – they find application in data components, electric motors, medical devices, also complex engineering applications.
- Relatively small size with high pulling force – neodymium magnets offer high power in small dimensions, which allows their use in compact constructions
Disadvantages
- Brittleness is one of their disadvantages. Upon strong impact they can break. We recommend keeping them in a special holder, which not only secures them against impacts but also increases their durability
- We warn that neodymium magnets can lose their strength at high temperatures. To prevent this, we suggest our specialized [AH] magnets, which work effectively even at 230°C.
- They rust in a humid environment. For use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
- Due to limitations in creating nuts and complicated shapes in magnets, we propose using cover - magnetic mechanism.
- Potential hazard to health – tiny shards of magnets pose a threat, in case of ingestion, which becomes key in the context of child safety. It is also worth noting that tiny parts of these products are able to be problematic in diagnostics medical in case of swallowing.
- With large orders the cost of neodymium magnets is a challenge,
Lifting parameters
Maximum lifting capacity of the magnet – what affects it?
- using a sheet made of low-carbon steel, acting as a magnetic yoke
- possessing a massiveness of minimum 10 mm to avoid saturation
- characterized by lack of roughness
- under conditions of ideal adhesion (metal-to-metal)
- under axial application of breakaway force (90-degree angle)
- at conditions approx. 20°C
What influences lifting capacity in practice
- Space between surfaces – even a fraction of a millimeter of distance (caused e.g. by veneer or dirt) drastically reduces the magnet efficiency, often by half at just 0.5 mm.
- Load vector – highest force is reached only during pulling at a 90° angle. The resistance to sliding of the magnet along the plate is standardly many times lower (approx. 1/5 of the lifting capacity).
- Steel thickness – insufficiently thick steel does not accept the full field, causing part of the flux to be wasted to the other side.
- Steel grade – the best choice is high-permeability steel. Cast iron may generate lower lifting capacity.
- Smoothness – full contact is possible only on smooth steel. Rough texture create air cushions, weakening the magnet.
- Temperature influence – high temperature reduces magnetic field. Exceeding the limit temperature can permanently damage the magnet.
Lifting capacity testing was performed on plates with a smooth surface of optimal thickness, under perpendicular forces, whereas under parallel forces the holding force is lower. In addition, even a small distance between the magnet’s surface and the plate decreases the lifting capacity.
H&S for magnets
GPS and phone interference
Note: neodymium magnets produce a field that disrupts sensitive sensors. Maintain a safe distance from your phone, tablet, and GPS.
Conscious usage
Be careful. Neodymium magnets attract from a distance and snap with massive power, often quicker than you can move away.
Nickel coating and allergies
Medical facts indicate that nickel (standard magnet coating) is a common allergen. If you have an allergy, avoid direct skin contact and select coated magnets.
Do not give to children
Only for adults. Small elements can be swallowed, causing intestinal necrosis. Store out of reach of children and animals.
Operating temperature
Regular neodymium magnets (N-type) undergo demagnetization when the temperature goes above 80°C. This process is irreversible.
Medical interference
Warning for patients: Powerful magnets affect electronics. Maintain at least 30 cm distance or request help to handle the magnets.
Keep away from computers
Very strong magnetic fields can corrupt files on payment cards, HDDs, and storage devices. Keep a distance of at least 10 cm.
Fire warning
Combustion risk: Rare earth powder is highly flammable. Do not process magnets in home conditions as this risks ignition.
Hand protection
Mind your fingers. Two powerful magnets will snap together immediately with a force of massive weight, crushing anything in their path. Exercise extreme caution!
Fragile material
Despite metallic appearance, neodymium is brittle and cannot withstand shocks. Do not hit, as the magnet may crumble into hazardous fragments.
