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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

bulk discounts:

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Technical details - 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

Technical simulation of the product - technical parameters

The following data are the outcome of a engineering analysis. Results were calculated on algorithms for the material Nd2Fe14B. Actual conditions might slightly differ from theoretical values. Treat these calculations as a reference point when designing systems.

Table 1: Static force (force vs distance) - interaction chart
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
strong
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: Shear 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 (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: 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: Working in heat (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 (repulsion) - field range
MPL 10x10x3 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Lateral 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: Safety (HSE) (implants) - warnings
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
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 (cracking risk) - 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: Surface protection spec
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%
Rust risk: Standard nickel requires drying after every contact with moisture; lack of maintenance will lead to rust spots.
1. Sliding resistance

*Warning: On a vertical wall, the magnet holds just a fraction of its nominal pull.

2. Plate thickness effect

*Thin metal sheet (e.g. 0.5mm PC case) drastically reduces the holding force.

3. Heat tolerance

*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) = 0.36

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
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%
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
Magnet Unit Converter
Magnet pull force

Magnetic Field

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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 the highest quality connection. As a block magnet with high power (approx. 2.32 kg), this product is available off-the-shelf from our warehouse in Poland. The durable anti-corrosion layer ensures a long lifespan in a dry environment, protecting the core from oxidation.
Separating strong flat magnets requires a technique based on sliding (moving one relative to the other), rather than forceful pulling apart. 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.
Plate magnets MPL 10x10x3 / N38 are the foundation for many industrial devices, such as magnetic separators and linear motors. They work great as invisible mounts under tiles, wood, or glass. Customers often choose this model for workshop organization on strips and for advanced DIY and modeling projects, where precision and power count.
For mounting flat magnets MPL 10x10x3 / N38, it is best to use two-component adhesives (e.g., UHU Endfest, Distal), which ensure a durable bond with metal or plastic. Double-sided tape cushions vibrations, which is an advantage when mounting in moving elements. 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 (10x10 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.
This model is characterized by dimensions 10x10x3 mm, which, at a weight of 2.25 g, makes it an element with high energy density. The key parameter here is the holding force amounting to approximately 2.32 kg (force ~22.77 N), which, with such a flat shape, proves the high grade of the material. The protective [NiCuNi] coating secures the magnet against corrosion.

Strengths and weaknesses of Nd2Fe14B magnets.

Benefits

Besides their high retention, neodymium magnets are valued for these benefits:
  • Their magnetic field is durable, and after approximately ten years it decreases only by ~1% (according to research),
  • They retain their magnetic properties even under external field action,
  • Thanks to the elegant finish, the surface of nickel, gold-plated, or silver gives an elegant appearance,
  • Neodymium magnets generate maximum magnetic induction on a their surface, which increases force concentration,
  • 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...
  • Possibility of precise creating and adapting to complex applications,
  • Fundamental importance in advanced technology sectors – they are utilized in computer drives, electromotive mechanisms, precision medical tools, as well as modern systems.
  • Relatively small size with high pulling force – neodymium magnets offer high power in compact dimensions, which enables their usage in miniature devices

Cons

Disadvantages of neodymium magnets:
  • At strong impacts they can crack, therefore we recommend placing them in steel cases. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
  • Neodymium magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop of power (a factor is the shape and dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are extremely resistant to heat
  • Due to the susceptibility of magnets to corrosion in a humid environment, we suggest using waterproof magnets made of rubber, plastic or other material stable to moisture, in case of application outdoors
  • Limited possibility of producing nuts in the magnet and complicated shapes - preferred is cover - mounting mechanism.
  • Possible danger related to microscopic parts of magnets are risky, when accidentally swallowed, which becomes key in the context of child safety. Additionally, small components of these products can disrupt the diagnostic process medical after entering the body.
  • High unit price – neodymium magnets have a higher price than other types of magnets (e.g. ferrite), which can limit application in large quantities

Lifting parameters

Maximum holding power of the magnet – what contributes to it?

The force parameter is a result of laboratory testing conducted under specific, ideal conditions:
  • on a plate made of structural steel, perfectly concentrating the magnetic field
  • with a thickness no less than 10 mm
  • characterized by smoothness
  • with total lack of distance (without coatings)
  • for force acting at a right angle (in the magnet axis)
  • at ambient temperature approx. 20 degrees Celsius

Impact of factors on magnetic holding capacity in practice

Bear in mind that the magnet holding will differ subject to elements below, starting with the most relevant:
  • Gap (betwixt the magnet and the metal), since even a microscopic distance (e.g. 0.5 mm) leads to a reduction in force by up to 50% (this also applies to varnish, corrosion or dirt).
  • Load vector – highest force is obtained only during perpendicular pulling. The shear force of the magnet along the plate is typically many times smaller (approx. 1/5 of the lifting capacity).
  • Metal thickness – the thinner the sheet, the weaker the hold. Part of the magnetic field penetrates through instead of generating force.
  • Metal type – different alloys attracts identically. Alloy additives worsen the attraction effect.
  • Surface finish – ideal contact is possible only on smooth steel. Rough texture create air cushions, reducing force.
  • Thermal factor – hot environment weakens magnetic field. Too high temperature can permanently demagnetize the magnet.

Holding force was tested on a smooth steel plate of 20 mm thickness, when the force acted perpendicularly, in contrast under parallel forces the load capacity is reduced by as much as fivefold. Additionally, even a minimal clearance between the magnet and the plate reduces the holding force.

Safety rules for work with neodymium magnets
This is not a toy

Adult use only. Small elements can be swallowed, leading to serious injuries. Store out of reach of children and animals.

Fragile material

Beware of splinters. Magnets can explode upon uncontrolled impact, ejecting shards into the air. We recommend safety glasses.

Safe operation

Handle magnets consciously. Their immense force can surprise even professionals. Stay alert and respect their power.

Medical implants

Individuals with a ICD must maintain an absolute distance from magnets. The magnetic field can interfere with the operation of the implant.

Permanent damage

Avoid heat. Neodymium magnets are sensitive to heat. If you need operation above 80°C, ask us about special high-temperature series (H, SH, UH).

Magnetic interference

Be aware: neodymium magnets generate a field that confuses precision electronics. Keep a safe distance from your phone, tablet, and navigation systems.

Magnetic media

Intense magnetic fields can destroy records on credit cards, hard drives, and other magnetic media. Keep a distance of min. 10 cm.

Nickel coating and allergies

Allergy Notice: The nickel-copper-nickel coating consists of nickel. If an allergic reaction occurs, immediately stop handling magnets and wear gloves.

Crushing risk

Mind your fingers. Two large magnets will snap together immediately with a force of massive weight, crushing everything in their path. Be careful!

Fire risk

Fire hazard: Rare earth powder is explosive. Do not process magnets in home conditions as this may cause fire.

Caution! Want to know more? Check our post: Why are neodymium magnets dangerous?
Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98