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MPL 10x10x3 / N38 - lamellar magnet

lamellar magnet

Catalog no 020111

GTIN/EAN: 5906301811176

5.00
Load capacity 2.32 kg / 22.77 N Magnetic Induction 293.71 mT / 2937 Gs
length
10 mm [±0,1 mm]
Width
10 mm [±0,1 mm]
Height
3 mm [±0,1 mm]
Weight
2.25 g
Magnetization Direction
↑ axial
Coating
[NiCuNi] Nickel

How we measure these parameters — certificates and measurements

1.150net / pcs

1.414 zł with VAT (23% VAT) / pcs

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Gross
price from 1 pcs
1.150 zł
1.414 zł
price from 550 pcs
1.081 zł
1.330 zł
price from 2200 pcs
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1.245 zł

Frequently asked questions

How much will a block magnet really hold?
The catalogue force is measured in full contact with smooth steel at least 10 mm thick, pulled perpendicular, at about 20 °C. On 1 mm sheet about 50% of that value remains, on 0.5 mm about 25%. Mounted on a vertical wall the realistic figure is 20–30%, because the load is then in shear rather than in tension.
What is the maximum working temperature?
Standard N-series grades up to 80 °C, and N50, N52 and N54 up to 60 °C. Above the maximum working temperature the loss stops being reversible. The Curie temperature, at which magnetic properties are lost completely, is about 310 °C.
What safety factor should I allow?
At least twice the mass of the item, and three to five times for vertical mounting. The margin covers sheet thickness, surface condition, any layer of paint or rust, and vibration.

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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Call us now +48 888 99 98 98 alternatively let us know using contact form the contact section.
Specifications and structure of a neodymium magnet can be estimated using our power calculator.

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Technical data of the product - MPL 10x10x3 / N38 - lamellar magnet

Specification / characteristics - MPL 10x10x3 / N38 - lamellar magnet

properties
properties values
Cat. no. 020111
GTIN/EAN 5906301811176
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 10 mm [±0,1 mm]
Width 10 mm [±0,1 mm]
Height 3 mm [±0,1 mm]
Weight 2.25 g
Magnetization Direction ↑ axial
Load capacity ~ ? 2.32 kg / 22.77 N
Magnetic Induction ~ ? 293.71 mT / 2937 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MPL 10x10x3 / N38 - lamellar magnet
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

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 analysis of the magnet - report

Presented values represent the result of a mathematical simulation. Values were calculated on models for the material Nd2Fe14B. Operational conditions might slightly deviate from the simulation results. Use these data as a reference point when designing systems.

Table 1: Static force (force vs gap) - power drop
MPL 10x10x3 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 2936 Gs
293.6 mT
2.32 kg / 5.11 LBS
2320.0 g / 22.8 N
medium risk
1 mm 2513 Gs
251.3 mT
1.70 kg / 3.75 LBS
1700.6 g / 16.7 N
weak grip
2 mm 2036 Gs
203.6 mT
1.12 kg / 2.46 LBS
1115.5 g / 10.9 N
weak grip
3 mm 1594 Gs
159.4 mT
0.68 kg / 1.51 LBS
683.9 g / 6.7 N
weak grip
5 mm 943 Gs
94.3 mT
0.24 kg / 0.53 LBS
239.3 g / 2.3 N
weak grip
10 mm 285 Gs
28.5 mT
0.02 kg / 0.05 LBS
21.8 g / 0.2 N
weak grip
15 mm 112 Gs
11.2 mT
0.00 kg / 0.01 LBS
3.4 g / 0.0 N
weak grip
20 mm 54 Gs
5.4 mT
0.00 kg / 0.00 LBS
0.8 g / 0.0 N
weak grip
30 mm 18 Gs
1.8 mT
0.00 kg / 0.00 LBS
0.1 g / 0.0 N
weak grip
50 mm 4 Gs
0.4 mT
0.00 kg / 0.00 LBS
0.0 g / 0.0 N
weak grip

Table 2: Sliding force (wall)
MPL 10x10x3 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 0.46 kg / 1.02 LBS
464.0 g / 4.6 N
1 mm Stal (~0.2) 0.34 kg / 0.75 LBS
340.0 g / 3.3 N
2 mm Stal (~0.2) 0.22 kg / 0.49 LBS
224.0 g / 2.2 N
3 mm Stal (~0.2) 0.14 kg / 0.30 LBS
136.0 g / 1.3 N
5 mm Stal (~0.2) 0.05 kg / 0.11 LBS
48.0 g / 0.5 N
10 mm Stal (~0.2) 0.00 kg / 0.01 LBS
4.0 g / 0.0 N
15 mm Stal (~0.2) 0.00 kg / 0.00 LBS
0.0 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) - vertical pull
MPL 10x10x3 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
0.70 kg / 1.53 LBS
696.0 g / 6.8 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
0.46 kg / 1.02 LBS
464.0 g / 4.6 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.23 kg / 0.51 LBS
232.0 g / 2.3 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
1.16 kg / 2.56 LBS
1160.0 g / 11.4 N

Table 4: Material efficiency (substrate influence) - sheet metal selection
MPL 10x10x3 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
10%
0.23 kg / 0.51 LBS
232.0 g / 2.3 N
1 mm
25%
0.58 kg / 1.28 LBS
580.0 g / 5.7 N
2 mm
50%
1.16 kg / 2.56 LBS
1160.0 g / 11.4 N
3 mm
75%
1.74 kg / 3.84 LBS
1740.0 g / 17.1 N
5 mm
100%
2.32 kg / 5.11 LBS
2320.0 g / 22.8 N
10 mm
100%
2.32 kg / 5.11 LBS
2320.0 g / 22.8 N
11 mm
100%
2.32 kg / 5.11 LBS
2320.0 g / 22.8 N
12 mm
100%
2.32 kg / 5.11 LBS
2320.0 g / 22.8 N

Table 5: Thermal resistance (stability) - power drop
MPL 10x10x3 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 2.32 kg / 5.11 LBS
2320.0 g / 22.8 N
OK
40 °C -2.2% 2.27 kg / 5.00 LBS
2269.0 g / 22.3 N
OK
60 °C -4.4% 2.22 kg / 4.89 LBS
2217.9 g / 21.8 N
80 °C -6.6% 2.17 kg / 4.78 LBS
2166.9 g / 21.3 N
100 °C -28.8% 1.65 kg / 3.64 LBS
1651.8 g / 16.2 N

Table 6: Two magnets (attraction) - forces in the system
MPL 10x10x3 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Shear Strength (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 5.31 kg / 11.71 LBS
4 526 Gs
0.80 kg / 1.76 LBS
797 g / 7.8 N
N/A
1 mm 4.63 kg / 10.20 LBS
5 480 Gs
0.69 kg / 1.53 LBS
694 g / 6.8 N
4.17 kg / 9.18 LBS
~0 Gs
2 mm 3.89 kg / 8.59 LBS
5 027 Gs
0.58 kg / 1.29 LBS
584 g / 5.7 N
3.51 kg / 7.73 LBS
~0 Gs
3 mm 3.19 kg / 7.03 LBS
4 549 Gs
0.48 kg / 1.05 LBS
478 g / 4.7 N
2.87 kg / 6.33 LBS
~0 Gs
5 mm 2.01 kg / 4.44 LBS
3 613 Gs
0.30 kg / 0.67 LBS
302 g / 3.0 N
1.81 kg / 3.99 LBS
~0 Gs
10 mm 0.55 kg / 1.21 LBS
1 886 Gs
0.08 kg / 0.18 LBS
82 g / 0.8 N
0.49 kg / 1.09 LBS
~0 Gs
20 mm 0.05 kg / 0.11 LBS
569 Gs
0.01 kg / 0.02 LBS
7 g / 0.1 N
0.04 kg / 0.10 LBS
~0 Gs
50 mm 0.00 kg / 0.00 LBS
60 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
36 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
24 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
16 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
12 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
9 Gs
0.00 kg / 0.00 LBS
0 g / 0.0 N
0.00 kg / 0.00 LBS
~0 Gs

Table 7: Hazards (implants) - precautionary measures
MPL 10x10x3 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 5.0 cm
Hearing aid 10 Gs (1.0 mT) 4.0 cm
Mechanical watch 20 Gs (2.0 mT) 3.0 cm
Mobile device 40 Gs (4.0 mT) 2.5 cm
Remote 50 Gs (5.0 mT) 2.5 cm
Payment card 400 Gs (40.0 mT) 1.0 cm
HDD hard drive 600 Gs (60.0 mT) 1.0 cm

Table 8: Impact energy (cracking risk) - warning
MPL 10x10x3 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 25.15 km/h
(6.99 m/s)
0.05 J
30 mm 25.28 km/h
(7.02 m/s)
0.06 J
50 mm 25.27 km/h
(7.02 m/s)
0.06 J
100 mm 25.29 km/h
(7.02 m/s)
0.06 J

Table 9: Anti-corrosion coating durability
MPL 10x10x3 / 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 10x10x3 / N38

Parameter Value SI Unit / Description
Magnetic Flux 3 197 Mx 32.0 µWb
Pc Coefficient 0.36 Low (Flat)

Table 11: Physics of underwater searching
MPL 10x10x3 / N38

Environment Effective steel pull Effect
Air (land) 2.32 kg Standard
Water (riverbed) 2.66 kg
(+0.34 kg buoyancy gain)
+14.5%
Corrosion warning: Standard nickel requires drying after every contact with moisture; lack of maintenance will lead to rust spots.

1. Wall mount (shear)

*Warning: On a vertical wall, the magnet holds only approx. 20-30% of its nominal pull.

2. Steel saturation

*Thin metal sheet (e.g. computer case) drastically reduces the holding force.

3. Thermal stability

*For standard magnets, the max working temp is 80°C.

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

chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.36

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.

Engineering data and GPSR

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
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: 020111-2026
Magnet Unit Converter

Force (pull)


Magnetic Induction

Other proposals

Component MPL 10x10x3 / N38 features a low profile and industrial pulling force, making it a perfect solution for building separators and machines. This magnetic block with a force of 22.77 N is ready for shipment in 24h, allowing for rapid realization of your project. The durable anti-corrosion layer ensures a long lifespan in a dry environment, protecting the core from oxidation.
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. Watch your fingers! Magnets with a force of 2.32 kg can pinch very hard and cause hematomas. Using a screwdriver risks destroying the coating and permanently cracking the magnet.
They constitute a key element in the production of wind generators and material handling systems. Thanks to the flat surface and high force (approx. 2.32 kg), they are ideal as closers in furniture making and mounting elements in automation. Their rectangular shape facilitates precise gluing into milled sockets in wood or plastic.
Cyanoacrylate glues (super glue type) are good only for small magnets; for larger plates, we recommend resins. Double-sided tape cushions vibrations, which is an advantage when mounting in moving elements. 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 10x10x3 / N38 model is magnetized axially (dimension 3 mm), which means that the N and S poles are located on its largest, flat surfaces. Thanks to this, it works best when "sticking" to sheet metal or another magnet with a large surface area. Such a pole arrangement ensures maximum holding capacity when pressing against the sheet, creating a closed magnetic circuit.
This model is characterized by dimensions 10x10x3 mm, which, at a weight of 2.25 g, makes it an element with high energy density. It is a magnetic block with dimensions 10x10x3 mm and a self-weight of 2.25 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 rare earth magnets.

Advantages

In addition to their long-term stability, neodymium magnets provide the following advantages:
  • They have constant strength, and over around 10 years their performance decreases symbolically – ~1% (according to theory),
  • They are extremely resistant to demagnetization induced by external magnetic fields,
  • The use of an elegant coating of noble metals (nickel, gold, silver) causes the element to be more visually attractive,
  • They show high magnetic induction at the operating surface, which affects their effectiveness,
  • Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and can function (depending on the form) even at a temperature of 230°C or more...
  • Due to the possibility of precise forming and customization to individualized requirements, magnetic components can be created in a variety of shapes and sizes, which expands the range of possible applications,
  • Significant place in future technologies – they are utilized in HDD drives, brushless drives, medical equipment, also technologically advanced constructions.
  • Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in tiny dimensions, which makes them useful in compact constructions

Weaknesses

Disadvantages of NdFeB magnets:
  • To avoid cracks under impact, we suggest using special steel housings. Such a solution secures the magnet and simultaneously improves its durability.
  • Neodymium magnets lose strength when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop 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 oxidize in a humid environment - during use outdoors we recommend using waterproof magnets e.g. in rubber, plastic
  • We recommend cover - magnetic mount, due to difficulties in creating nuts inside the magnet and complex forms.
  • Potential hazard to health – tiny shards of magnets pose a threat, if swallowed, which is particularly important in the context of child health protection. Additionally, tiny parts of these magnets 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 can limit application in large quantities

Pull force analysis

Maximum holding power of the magnet – what affects it?

The declared magnet strength represents the maximum value, measured under ideal test conditions, namely:
  • with the use of a yoke made of low-carbon steel, ensuring maximum field concentration
  • whose transverse dimension is min. 10 mm
  • with a surface perfectly flat
  • with direct contact (without impurities)
  • during pulling in a direction vertical to the plane
  • in temp. approx. 20°C

Key elements affecting lifting force

In practice, the actual holding force depends on several key aspects, listed from most significant:
  • Distance (between the magnet and the metal), since even a tiny clearance (e.g. 0.5 mm) leads to a drastic drop in lifting capacity by up to 50% (this also applies to paint, rust or debris).
  • Direction of force – highest force is obtained only during perpendicular pulling. The force required to slide of the magnet along the plate is typically many times smaller (approx. 1/5 of the lifting capacity).
  • Wall thickness – the thinner the sheet, the weaker the hold. Part of the magnetic field passes through the material instead of generating force.
  • Metal type – different alloys attracts identically. High carbon content worsen the attraction effect.
  • Surface condition – ground elements ensure maximum contact, which increases field saturation. Uneven metal reduce efficiency.
  • Thermal conditions – neodymium magnets have a negative temperature coefficient. At higher temperatures they lose power, and in frost they can be stronger (up to a certain limit).

Holding force was measured on the plate surface of 20 mm thickness, when a perpendicular force was applied, in contrast under parallel forces the lifting capacity is smaller. Moreover, even a minimal clearance between the magnet and the plate reduces the load capacity.

Safety rules for work with neodymium magnets
Avoid contact if allergic

Some people suffer from a hypersensitivity to Ni, which is the common plating for neodymium magnets. Frequent touching can result in a rash. We suggest use safety gloves.

Eye protection

Beware of splinters. Magnets can explode upon violent connection, launching sharp fragments into the air. Wear goggles.

Product not for children

These products are not intended for children. Eating several magnets may result in them connecting inside the digestive tract, which poses a severe health hazard and necessitates immediate surgery.

Thermal limits

Keep cool. NdFeB magnets are susceptible to heat. If you require resistance above 80°C, inquire about HT versions (H, SH, UH).

Immense force

Use magnets with awareness. Their immense force can surprise even professionals. Be vigilant and respect their power.

Implant safety

Life threat: Neodymium magnets can turn off pacemakers and defibrillators. Stay away if you have medical devices.

Compass and GPS

Navigation devices and mobile phones are extremely sensitive to magnetic fields. Close proximity with a powerful NdFeB magnet can permanently damage the sensors in your phone.

Cards and drives

Device Safety: Strong magnets can damage data carriers and sensitive devices (pacemakers, medical aids, mechanical watches).

Combustion hazard

Fire warning: Neodymium dust is explosive. Avoid machining magnets in home conditions as this may cause fire.

Crushing risk

Risk of injury: The pulling power is so immense that it can cause blood blisters, crushing, and broken bones. Protective gloves are recommended.

Safety First! Need more info? Read our article: Are neodymium magnets dangerous?