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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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Technical specification - 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 modeling of the product - technical parameters

Presented data are the result of a mathematical simulation. Values were calculated on models for the class Nd2Fe14B. Real-world parameters may differ from theoretical values. Use these data as a supplementary guide when designing systems.

Table 1: Static force (force vs gap) - 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
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: Slippage force (vertical surface)
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: Material efficiency (saturation) - sheet metal selection
MPL 11x11x1 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
10%
0.04 kg / 0.09 pounds
43.0 g / 0.4 N
1 mm
25%
0.11 kg / 0.24 pounds
107.5 g / 1.1 N
2 mm
50%
0.22 kg / 0.47 pounds
215.0 g / 2.1 N
3 mm
75%
0.32 kg / 0.71 pounds
322.5 g / 3.2 N
5 mm
100%
0.43 kg / 0.95 pounds
430.0 g / 4.2 N
10 mm
100%
0.43 kg / 0.95 pounds
430.0 g / 4.2 N
11 mm
100%
0.43 kg / 0.95 pounds
430.0 g / 4.2 N
12 mm
100%
0.43 kg / 0.95 pounds
430.0 g / 4.2 N

Table 5: Working in heat (material behavior) - 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 (repulsion) - field range
MPL 11x11x1 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Shear Strength (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: Hazards (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: Impact energy (cracking risk) - warning
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: Construction 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: 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%
Corrosion warning: Remember to wipe the magnet thoroughly after removing it from water and apply a protective layer (e.g., oil) to avoid corrosion.
1. Shear force

*Caution: On a vertical surface, the magnet holds merely ~20% of its nominal pull.

2. Steel saturation

*Thin metal sheet (e.g. computer case) severely weakens the holding force.

3. Thermal stability

*For N38 material, the safety limit is 80°C.

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

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

This simulation demonstrates the magnetic stability of the selected magnet under specific geometric conditions. 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
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%
Sustainability
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: 020116-2026
Magnet Unit Converter
Pulling force

Field Strength

Other deals

This product is an extremely strong magnet in the shape of a plate made of NdFeB material, which, with dimensions of 11x11x1 mm and a weight of 0.91 g, guarantees premium class connection. This magnetic block with a force of 4.24 N is ready for shipment in 24h, allowing for rapid realization of your project. Furthermore, its Ni-Cu-Ni coating protects it against corrosion in standard operating conditions, giving it an aesthetic appearance.
The key to success is shifting 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. To separate the MPL 11x11x1 / N38 model, firmly slide one magnet over the edge of the other until the attraction force decreases. We recommend care, because after separation, the magnets may want to violently snap back together, which threatens pinching the skin. Never use metal tools for prying, as the brittle NdFeB material may chip and damage your eyes.
Plate magnets MPL 11x11x1 / N38 are the foundation for many industrial devices, such as magnetic separators and linear motors. 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. Remember to clean and degrease the magnet surface before gluing, which significantly increases the adhesion of the glue to the nickel coating.
Standardly, the MPL 11x11x1 / N38 model is magnetized through the thickness (dimension 1 mm), which means that the N and S poles are located on its largest, flat surfaces. In practice, this means that this magnet has the greatest attraction force on its main planes (11x11 mm), which is ideal for flat mounting. This is the most popular configuration for block magnets used in separators and holders.
The presented product is a neodymium magnet with precisely defined parameters: 11 mm (length), 11 mm (width), and 1 mm (thickness). The key parameter here is the lifting capacity amounting to approximately 0.43 kg (force ~4.24 N), which, with such a flat shape, proves the high power of the material. The product meets the standards for N38 grade magnets.

Advantages as well as disadvantages of rare earth magnets.

Benefits

In addition to their magnetic capacity, neodymium magnets provide the following advantages:
  • They do not lose magnetism, even during nearly ten years – the reduction in power is only ~1% (according to tests),
  • They possess excellent resistance to weakening of magnetic properties as a result of external magnetic sources,
  • The use of an metallic layer of noble metals (nickel, gold, silver) causes the element to present itself better,
  • Magnetic induction on the working part of the magnet remains impressive,
  • Through (adequate) combination of ingredients, they can achieve high thermal resistance, allowing for action at temperatures approaching 230°C and above...
  • Possibility of precise shaping and adjusting to specific requirements,
  • Key role in modern industrial fields – they are commonly used in magnetic memories, electric drive systems, medical devices, and multitasking production systems.
  • Compactness – despite small sizes they provide effective action, making them ideal for precision applications

Weaknesses

Characteristics of disadvantages of neodymium magnets and ways of using them
  • At very strong impacts they can crack, therefore we advise placing them in special holders. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
  • When exposed to high temperature, neodymium magnets suffer a drop in power. Often, when the temperature exceeds 80°C, their strength decreases (depending on the size, as well as shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
  • Due to the susceptibility of magnets to corrosion in a humid environment, we advise using waterproof magnets made of rubber, plastic or other material resistant to moisture, when using outdoors
  • We recommend cover - magnetic mechanism, due to difficulties in creating nuts inside the magnet and complex forms.
  • Possible danger resulting from small fragments of magnets pose a threat, in case of ingestion, which becomes key in the aspect of protecting the youngest. Furthermore, tiny parts of these products can be problematic in diagnostics medical in case of swallowing.
  • Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications

Pull force analysis

Optimal lifting capacity of a neodymium magnetwhat affects it?

The specified lifting capacity refers to the limit force, recorded under ideal test conditions, specifically:
  • with the contact of a yoke made of special test steel, ensuring full magnetic saturation
  • whose thickness equals approx. 10 mm
  • characterized by even structure
  • without any insulating layer between the magnet and steel
  • during pulling in a direction perpendicular to the plane
  • at room temperature

Lifting capacity in real conditions – factors

In practice, the actual holding force is determined by several key aspects, ranked from crucial:
  • Air gap (betwixt the magnet and the metal), since even a very small clearance (e.g. 0.5 mm) can cause a decrease in lifting capacity by up to 50% (this also applies to paint, rust or debris).
  • Pull-off angle – remember that the magnet holds strongest perpendicularly. Under shear forces, the holding force drops drastically, often to levels of 20-30% of the maximum value.
  • Substrate thickness – to utilize 100% power, the steel must be adequately massive. Paper-thin metal restricts the attraction force (the magnet "punches through" it).
  • Material type – ideal substrate is high-permeability steel. Hardened steels may attract less.
  • Surface finish – full contact is obtained only on polished steel. Rough texture reduce the real contact area, reducing force.
  • Temperature – heating the magnet causes a temporary drop of force. It is worth remembering the maximum operating temperature for a given model.

Lifting capacity was measured by applying a steel plate with a smooth surface of optimal thickness (min. 20 mm), under vertically applied force, whereas under parallel forces the lifting capacity is smaller. Additionally, even a slight gap between the magnet’s surface and the plate lowers the holding force.

Warnings
Risk of cracking

Despite the nickel coating, the material is delicate and not impact-resistant. Avoid impacts, as the magnet may shatter into sharp, dangerous pieces.

Electronic hazard

Very strong magnetic fields can erase data on credit cards, hard drives, and storage devices. Stay away of at least 10 cm.

Danger to the youngest

Adult use only. Tiny parts can be swallowed, leading to serious injuries. Keep out of reach of kids and pets.

Handling rules

Exercise caution. Rare earth magnets act from a long distance and connect with massive power, often quicker than you can move away.

Fire risk

Fire warning: Rare earth powder is explosive. Avoid machining magnets in home conditions as this risks ignition.

ICD Warning

Individuals with a ICD have to maintain an safe separation from magnets. The magnetism can stop the functioning of the life-saving device.

Phone sensors

A strong magnetic field interferes with the operation of magnetometers in phones and navigation systems. Do not bring magnets near a smartphone to avoid damaging the sensors.

Maximum temperature

Monitor thermal conditions. Heating the magnet to high heat will ruin its magnetic structure and strength.

Metal Allergy

It is widely known that the nickel plating (standard magnet coating) is a strong allergen. If you have an allergy, refrain from direct skin contact and opt for coated magnets.

Crushing force

Watch your fingers. Two large magnets will snap together immediately with a force of several hundred kilograms, destroying everything in their path. Exercise extreme caution!

Warning! Details about hazards in the article: Magnet Safety Guide.
Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98