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MPL 11x11x1 / N38 - lamellar magnet

lamellar magnet

Catalog no 020116

GTIN/EAN: 5906301811220

5.00

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 with VAT / pcs + price for transport

0.710 ZŁ net + 23% VAT / pcs

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MPL 11x11x1 / N38 - lamellar magnet

Specification / characteristics MPL 11x11x1 / N38 - lamellar magnet

properties
properties values
Cat. no. 020116
GTIN/EAN 5906301811220
Production/Distribution Dhit sp. z o.o.
ul. Zielona 14 05-850 Ożarów Mazowiecki PL
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

Specification / characteristics MPL 11x11x1 / N38 - lamellar magnet
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

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 analysis of the product - data

Presented information are the outcome of a engineering calculation. Results rely on algorithms for the material Nd2Fe14B. Actual conditions may differ. Use these data as a reference point when designing systems.

Table 1: Static pull force (force vs gap) - power drop
MPL 11x11x1 / N38
Distance (mm) Induction (Gauss) / mT Pull Force (kg) Risk Status
0 mm 1001 Gs
100.1 mT
0.43 kg / 430.0 g
4.2 N
safe
1 mm 925 Gs
92.5 mT
0.37 kg / 367.7 g
3.6 N
safe
2 mm 800 Gs
80.0 mT
0.27 kg / 274.9 g
2.7 N
safe
3 mm 659 Gs
65.9 mT
0.19 kg / 186.5 g
1.8 N
safe
5 mm 415 Gs
41.5 mT
0.07 kg / 74.0 g
0.7 N
safe
10 mm 130 Gs
13.0 mT
0.01 kg / 7.3 g
0.1 N
safe
15 mm 51 Gs
5.1 mT
0.00 kg / 1.1 g
0.0 N
safe
20 mm 24 Gs
2.4 mT
0.00 kg / 0.3 g
0.0 N
safe
30 mm 8 Gs
0.8 mT
0.00 kg / 0.0 g
0.0 N
safe
50 mm 2 Gs
0.2 mT
0.00 kg / 0.0 g
0.0 N
safe
Table 2: Slippage force (wall)
MPL 11x11x1 / N38
Distance (mm) Friction coefficient Pull Force (kg)
0 mm Stal (~0.2) 0.09 kg / 86.0 g
0.8 N
1 mm Stal (~0.2) 0.07 kg / 74.0 g
0.7 N
2 mm Stal (~0.2) 0.05 kg / 54.0 g
0.5 N
3 mm Stal (~0.2) 0.04 kg / 38.0 g
0.4 N
5 mm Stal (~0.2) 0.01 kg / 14.0 g
0.1 N
10 mm Stal (~0.2) 0.00 kg / 2.0 g
0.0 N
15 mm Stal (~0.2) 0.00 kg / 0.0 g
0.0 N
20 mm Stal (~0.2) 0.00 kg / 0.0 g
0.0 N
30 mm Stal (~0.2) 0.00 kg / 0.0 g
0.0 N
50 mm Stal (~0.2) 0.00 kg / 0.0 g
0.0 N
Table 3: Wall mounting (sliding) - behavior on slippery surfaces
MPL 11x11x1 / N38
Surface type Friction coefficient / % Mocy Max load (kg)
Raw steel
µ = 0.3 30% Nominalnej Siły
0.13 kg / 129.0 g
1.3 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
0.09 kg / 86.0 g
0.8 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.04 kg / 43.0 g
0.4 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
0.22 kg / 215.0 g
2.1 N
Table 4: Material efficiency (substrate influence) - power losses
MPL 11x11x1 / N38
Steel thickness (mm) % power Real pull force (kg)
0.5 mm
10%
0.04 kg / 43.0 g
0.4 N
1 mm
25%
0.11 kg / 107.5 g
1.1 N
2 mm
50%
0.22 kg / 215.0 g
2.1 N
5 mm
100%
0.43 kg / 430.0 g
4.2 N
10 mm
100%
0.43 kg / 430.0 g
4.2 N
Table 5: Working in heat (material behavior) - resistance threshold
MPL 11x11x1 / N38
Ambient temp. (°C) Power loss Remaining pull Status
20 °C 0.0% 0.43 kg / 430.0 g
4.2 N
OK
40 °C -2.2% 0.42 kg / 420.5 g
4.1 N
OK
60 °C -4.4% 0.41 kg / 411.1 g
4.0 N
80 °C -6.6% 0.40 kg / 401.6 g
3.9 N
100 °C -28.8% 0.31 kg / 306.2 g
3.0 N
Table 6: Two magnets (repulsion) - forces in the system
MPL 11x11x1 / N38
Gap (mm) Attraction (kg) (N-S) Repulsion (kg) (N-N)
0 mm 0.75 kg / 747 g
7.3 N
1 925 Gs
N/A
1 mm 0.70 kg / 704 g
6.9 N
1 943 Gs
0.63 kg / 634 g
6.2 N
~0 Gs
2 mm 0.64 kg / 639 g
6.3 N
1 851 Gs
0.58 kg / 575 g
5.6 N
~0 Gs
3 mm 0.56 kg / 560 g
5.5 N
1 734 Gs
0.50 kg / 504 g
4.9 N
~0 Gs
5 mm 0.40 kg / 397 g
3.9 N
1 460 Gs
0.36 kg / 358 g
3.5 N
~0 Gs
10 mm 0.13 kg / 129 g
1.3 N
831 Gs
0.12 kg / 116 g
1.1 N
~0 Gs
20 mm 0.01 kg / 13 g
0.1 N
261 Gs
0.01 kg / 11 g
0.1 N
~0 Gs
50 mm 0.00 kg / 0 g
0.0 N
26 Gs
0.00 kg / 0 g
0.0 N
~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
Timepiece 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 (kinetic energy) - 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: Coating parameters (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: Construction 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: Underwater work (magnet fishing)
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%
Warning: Standard nickel requires drying after every contact with moisture; lack of maintenance will lead to rust spots.
1. Vertical hold

*Warning: On a vertical wall, the magnet holds only ~20% of its max power.

2. Steel saturation

*Thin steel (e.g. 0.5mm PC case) severely reduces the holding force.

3. Temperature resistance

*For N38 grade, the max working temp is 80°C.

4. Demagnetization curve and operating point (B-H)

chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.13

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.

Technical specification and ecology
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%
Environmental data
recyclability (EoL) 100%
recycled raw materials ~10% (pre-cons)
carbon footprint low / zredukowany
waste code (EWC) 16 02 16
Safety card (GPSR)
responsible entity
Dhit sp. z o.o.
ul. Kościuszki 6A, 05-850 Ożarów Mazowiecki
tel: +48 22 499 98 98 | e-mail: bok@dhit.pl
batch number/type
id: 020116-2025
Measurement Calculator
Magnet pull force

Magnetic Induction

Check out more proposals

Model MPL 11x11x1 / N38 features a low profile and professional pulling force, making it a perfect solution for building separators and machines. This magnetic block with a force of 4.24 N is ready for shipment in 24h, allowing for rapid realization of your project. Additionally, its Ni-Cu-Ni coating protects it against corrosion in standard operating conditions, giving it an aesthetic appearance.
The key to success is sliding the magnets along their largest connection plane (using e.g., the edge of a table), which is easier than trying to tear them apart directly. Watch your fingers! Magnets with a force of 0.43 kg can pinch very hard and cause hematomas. Never use metal tools for prying, as the brittle NdFeB material may chip and damage your eyes.
They constitute a key element in the production of generators and material handling systems. Thanks to the flat surface and high force (approx. 0.43 kg), they are ideal as hidden locks in furniture making and mounting elements in automation. Customers often choose this model for workshop organization on strips and for advanced DIY and modeling projects, where precision and power count.
Cyanoacrylate glues (super glue type) are good only for small magnets; for larger plates, we recommend resins. For lighter applications or mounting on smooth surfaces, branded foam tape (e.g., 3M VHB) will work, provided the surface is perfectly degreased. Avoid chemically aggressive glues or hot glue, which can demagnetize neodymium (above 80°C).
The magnetic axis runs through the shortest dimension, which is typical for gripper magnets. In practice, this means that this magnet has the greatest attraction force on its main planes (11x11 mm), which is ideal for flat mounting. Such a pole arrangement ensures maximum holding capacity when pressing against the sheet, creating a closed magnetic circuit.
The presented product is a neodymium magnet with precisely defined parameters: 11 mm (length), 11 mm (width), and 1 mm (thickness). It is a magnetic block with dimensions 11x11x1 mm and a self-weight of 0.91 g, ready to work at temperatures up to 80°C. The protective [NiCuNi] coating secures the magnet against corrosion.

Strengths as well as weaknesses of neodymium magnets.

Pros
Besides their magnetic performance, neodymium magnets are valued for these benefits:
  • Their magnetic field is maintained, and after approximately 10 years it drops only by ~1% (theoretically),
  • Magnets very well resist against demagnetization caused by ambient magnetic noise,
  • Thanks to the shimmering finish, the coating of nickel, gold, or silver gives an professional appearance,
  • The surface of neodymium magnets generates a strong magnetic field – this is one of their assets,
  • Due to their durability and thermal resistance, neodymium magnets are capable of operate (depending on the shape) even at high temperatures reaching 230°C or more...
  • Thanks to flexibility in constructing and the ability to adapt to specific needs,
  • Versatile presence in modern technologies – they serve a role in mass storage devices, electric drive systems, medical devices, as well as other advanced devices.
  • Thanks to efficiency per cm³, small magnets offer high operating force, with minimal size,
Weaknesses
What to avoid - cons of neodymium magnets and proposals for their use:
  • They are fragile upon heavy impacts. To avoid cracks, it is worth protecting magnets in a protective case. Such protection not only protects the magnet but also increases its resistance to damage
  • Neodymium magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop of strength (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
  • When exposed to humidity, magnets start to rust. For applications outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which prevent oxidation as well as corrosion.
  • Due to limitations in creating nuts and complicated forms in magnets, we propose using a housing - magnetic mount.
  • Health risk to health – tiny shards of magnets can be dangerous, in case of ingestion, which gains importance in the context of child health protection. It is also worth noting that tiny parts of these magnets are able to be problematic in diagnostics medical in case of swallowing.
  • With large orders the cost of neodymium magnets can be a barrier,

Holding force characteristics

Breakaway strength of the magnet in ideal conditionswhat it depends on?
Information about lifting capacity was determined for the most favorable conditions, including:
  • with the use of a yoke made of special test steel, ensuring full magnetic saturation
  • with a cross-section minimum 10 mm
  • characterized by smoothness
  • without any insulating layer between the magnet and steel
  • during detachment in a direction perpendicular to the mounting surface
  • in neutral thermal conditions
Lifting capacity in practice – influencing factors
During everyday use, the real power results from a number of factors, presented from crucial:
  • Gap between surfaces – even a fraction of a millimeter of separation (caused e.g. by varnish or dirt) diminishes the pulling force, often by half at just 0.5 mm.
  • Force direction – note that the magnet holds strongest perpendicularly. Under shear forces, the capacity drops significantly, often to levels of 20-30% of the nominal value.
  • Metal thickness – the thinner the sheet, the weaker the hold. Magnetic flux penetrates through instead of generating force.
  • Metal type – not every steel reacts the same. High carbon content weaken the attraction effect.
  • Plate texture – smooth surfaces guarantee perfect abutment, which increases force. Uneven metal reduce efficiency.
  • Temperature – heating the magnet causes a temporary drop of induction. Check the thermal limit for a given model.

Holding force was tested on the plate surface of 20 mm thickness, when a perpendicular force was applied, however under attempts to slide the magnet the load capacity is reduced by as much as 75%. In addition, even a minimal clearance between the magnet and the plate reduces the lifting capacity.

H&S for magnets
Machining danger

Fire warning: Rare earth powder is highly flammable. Avoid machining magnets without safety gear as this may cause fire.

Risk of cracking

NdFeB magnets are ceramic materials, which means they are prone to chipping. Impact of two magnets leads to them breaking into small pieces.

Finger safety

Protect your hands. Two powerful magnets will snap together instantly with a force of massive weight, crushing everything in their path. Exercise extreme caution!

Medical interference

Life threat: Strong magnets can deactivate pacemakers and defibrillators. Stay away if you have medical devices.

Safe distance

Very strong magnetic fields can destroy records on payment cards, hard drives, and storage devices. Maintain a gap of at least 10 cm.

Do not give to children

NdFeB magnets are not suitable for play. Eating multiple magnets can lead to them connecting inside the digestive tract, which constitutes a direct threat to life and necessitates immediate surgery.

Do not underestimate power

Before use, check safety instructions. Uncontrolled attraction can destroy the magnet or injure your hand. Think ahead.

Phone sensors

An intense magnetic field disrupts the operation of compasses in smartphones and GPS navigation. Maintain magnets near a smartphone to avoid damaging the sensors.

Heat warning

Standard neodymium magnets (grade N) lose magnetization when the temperature exceeds 80°C. Damage is permanent.

Metal Allergy

Nickel alert: The nickel-copper-nickel coating contains nickel. If redness appears, cease handling magnets and wear gloves.

Danger! Details about hazards in the article: Safety of working with magnets.
Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98