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MPL 10x10x3 / N38 - lamellar magnet

lamellar magnet

Catalog no 020111

GTIN/EAN: 5906301811176

5.00

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

1.414 with VAT / pcs + price for transport

1.150 ZŁ net + 23% VAT / pcs

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Product card - 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
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

Engineering simulation of the assembly - data

The following data constitute the outcome of a engineering analysis. Results rely on algorithms for the material Nd2Fe14B. Real-world parameters may deviate from the simulation results. Please consider these data as a supplementary guide when designing systems.

Table 1: Static force (force vs distance) - 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
low risk
2 mm 2036 Gs
203.6 mT
1.12 kg / 2.46 lbs
1115.5 g / 10.9 N
low risk
3 mm 1594 Gs
159.4 mT
0.68 kg / 1.51 lbs
683.9 g / 6.7 N
low risk
5 mm 943 Gs
94.3 mT
0.24 kg / 0.53 lbs
239.3 g / 2.3 N
low risk
10 mm 285 Gs
28.5 mT
0.02 kg / 0.05 lbs
21.8 g / 0.2 N
low risk
15 mm 112 Gs
11.2 mT
0.00 kg / 0.01 lbs
3.4 g / 0.0 N
low risk
20 mm 54 Gs
5.4 mT
0.00 kg / 0.00 lbs
0.8 g / 0.0 N
low risk
30 mm 18 Gs
1.8 mT
0.00 kg / 0.00 lbs
0.1 g / 0.0 N
low risk
50 mm 4 Gs
0.4 mT
0.00 kg / 0.00 lbs
0.0 g / 0.0 N
low risk

Table 2: Shear capacity (vertical surface)
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: Wall mounting (sliding) - 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: Steel thickness (substrate influence) - power losses
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 (material behavior) - resistance threshold
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: Magnet-Magnet interaction (attraction) - field collision
MPL 10x10x3 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Sliding Force (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: Protective zones (electronics) - 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
Timepiece 20 Gs (2.0 mT) 3.0 cm
Phone / Smartphone 40 Gs (4.0 mT) 2.5 cm
Car key 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: Collisions (kinetic energy) - warning
MPL 10x10x3 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 32.57 km/h
(9.05 m/s)
0.09 J
30 mm 56.09 km/h
(15.58 m/s)
0.27 J
50 mm 72.41 km/h
(20.11 m/s)
0.46 J
100 mm 102.41 km/h
(28.45 m/s)
0.91 J

Table 9: Coating parameters (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: Construction data (Pc)
MPL 10x10x3 / N38

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

Table 11: Hydrostatics and buoyancy
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%
Rust risk: Standard nickel requires drying after every contact with moisture; lack of maintenance will lead to rust spots.
1. Wall mount (shear)

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

2. Efficiency vs thickness

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

3. Thermal stability

*For N38 grade, the safety limit 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.

Technical specification and ecology
Material specification
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: 020111-2026
Quick Unit Converter
Pulling force

Magnetic Induction

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This product is a very powerful magnet in the shape of a plate made of NdFeB material, which, with dimensions of 10x10x3 mm and a weight of 2.25 g, guarantees premium class connection. This rectangular block with a force of 22.77 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 2.32 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.
Plate magnets MPL 10x10x3 / N38 are the foundation for many industrial devices, such as magnetic separators and linear motors. They work great as fasteners under tiles, wood, or glass. Their rectangular shape facilitates precise gluing into milled sockets in wood or plastic.
For mounting flat magnets MPL 10x10x3 / N38, we recommend utilizing two-component adhesives (e.g., UHU Endfest, Distal), which ensure a durable bond with metal or plastic. 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 roughen and wash 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.
The presented product is a neodymium magnet with precisely defined parameters: 10 mm (length), 10 mm (width), and 3 mm (thickness). The key parameter here is the holding force amounting to approximately 2.32 kg (force ~22.77 N), which, with such a compact shape, proves the high grade of the material. The product meets the standards for N38 grade magnets.

Strengths and weaknesses of Nd2Fe14B magnets.

Advantages

Besides their high retention, neodymium magnets are valued for these benefits:
  • They virtually do not lose power, because even after ten years the performance loss is only ~1% (in laboratory conditions),
  • They retain their magnetic properties even under close interference source,
  • In other words, due to the smooth finish of silver, the element looks attractive,
  • Magnetic induction on the top side of the magnet is strong,
  • Through (adequate) combination of ingredients, they can achieve high thermal resistance, allowing for operation at temperatures reaching 230°C and above...
  • Thanks to freedom in shaping and the ability to customize to complex applications,
  • Fundamental importance in high-tech industry – they are utilized in hard drives, electric drive systems, diagnostic systems, and complex engineering applications.
  • Relatively small size with high pulling force – neodymium magnets offer high power in small dimensions, which allows their use in miniature devices

Disadvantages

Disadvantages of NdFeB magnets:
  • At strong impacts they can crack, therefore we recommend placing them in special holders. A metal housing provides additional protection against damage and 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 force. 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 immune to moisture, when using outdoors
  • We recommend casing - magnetic mechanism, due to difficulties in creating nuts inside the magnet and complicated forms.
  • Health risk to health – tiny shards of magnets can be dangerous, if swallowed, which is particularly important in the context of child health protection. It is also worth noting that tiny parts of these products can complicate diagnosis medical when they are in the body.
  • With large orders the cost of neodymium magnets is economically unviable,

Lifting parameters

Best holding force of the magnet in ideal parameterswhat contributes to it?

Information about lifting capacity was defined for ideal contact conditions, including:
  • using a sheet made of mild steel, functioning as a magnetic yoke
  • whose thickness equals approx. 10 mm
  • with a surface free of scratches
  • under conditions of gap-free contact (surface-to-surface)
  • for force applied at a right angle (pull-off, not shear)
  • at room temperature

Lifting capacity in real conditions – factors

Bear in mind that the magnet holding will differ influenced by elements below, starting with the most relevant:
  • Clearance – existence of any layer (rust, dirt, gap) acts as an insulator, which reduces power rapidly (even by 50% at 0.5 mm).
  • Pull-off angle – remember that the magnet has greatest strength perpendicularly. Under shear forces, the holding force drops drastically, often to levels of 20-30% of the maximum value.
  • Base massiveness – insufficiently thick steel causes magnetic saturation, causing part of the power to be escaped into the air.
  • Material type – the best choice is high-permeability steel. Cast iron may have worse magnetic properties.
  • Plate texture – smooth surfaces ensure maximum contact, which improves force. Uneven metal reduce efficiency.
  • Thermal conditions – NdFeB sinters have a sensitivity to temperature. When it is hot they lose power, and at low temperatures they can be stronger (up to a certain limit).

Holding force was checked on the plate surface of 20 mm thickness, when a perpendicular force was applied, in contrast under attempts to slide the magnet the lifting capacity is smaller. Moreover, even a slight gap between the magnet and the plate lowers the load capacity.

H&S for magnets
Demagnetization risk

Standard neodymium magnets (grade N) undergo demagnetization when the temperature goes above 80°C. Damage is permanent.

Electronic devices

Powerful magnetic fields can erase data on credit cards, hard drives, and storage devices. Stay away of min. 10 cm.

Health Danger

People with a ICD should keep an safe separation from magnets. The magnetism can stop the functioning of the life-saving device.

GPS and phone interference

Be aware: neodymium magnets produce a field that confuses precision electronics. Maintain a separation from your mobile, device, and GPS.

Powerful field

Exercise caution. Rare earth magnets attract from a long distance and snap with massive power, often faster than you can move away.

Fire risk

Powder generated during grinding of magnets is combustible. Avoid drilling into magnets without proper cooling and knowledge.

Bodily injuries

Watch your fingers. Two powerful magnets will snap together instantly with a force of several hundred kilograms, crushing anything in their path. Be careful!

Keep away from children

Neodymium magnets are not toys. Accidental ingestion of several magnets may result in them attracting across intestines, which poses a severe health hazard and necessitates immediate surgery.

Warning for allergy sufferers

Studies show that nickel (standard magnet coating) is a potent allergen. If your skin reacts to metals, avoid direct skin contact and opt for versions in plastic housing.

Magnet fragility

Despite the nickel coating, neodymium is brittle and cannot withstand shocks. Avoid impacts, as the magnet may shatter into sharp, dangerous pieces.

Attention! Need more info? Read our article: Why are neodymium magnets dangerous?
Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98