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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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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

Technical modeling of the magnet - report

The following information are the direct effect of a engineering simulation. Values were calculated on models for the class Nd2Fe14B. Real-world conditions might slightly differ from theoretical values. Please consider these calculations as a supplementary guide when designing systems.

Table 1: Static force (pull vs distance) - characteristics
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
warning
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 hold (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 (shearing) - behavior on slippery surfaces
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 (saturation) - 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 stability (stability) - 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) - forces in the system
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 (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
Phone / Smartphone 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: Dynamics (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: 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: Submerged application
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: 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

*Note: On a vertical wall, the magnet retains just a fraction of its perpendicular strength.

2. Steel thickness impact

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

3. Power loss vs temp

*For standard magnets, 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

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.

Engineering data and GPSR
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%
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
Measurement Calculator
Pulling force

Field Strength

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Model MPL 10x10x3 / N38 features a low profile and industrial pulling force, making it an ideal solution for building separators and machines. 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 secures 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. Using a screwdriver risks destroying the coating and permanently cracking the magnet.
They constitute a key element in the production of generators and material handling systems. Thanks to the flat surface and high force (approx. 2.32 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).
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. 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.
The presented product is a neodymium magnet with precisely defined parameters: 10 mm (length), 10 mm (width), and 3 mm (thickness). 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 product meets the standards for N38 grade magnets.

Strengths and weaknesses of rare earth magnets.

Advantages

Apart from their consistent magnetism, neodymium magnets have these key benefits:
  • Their strength is durable, and after around 10 years it decreases only by ~1% (according to research),
  • Magnets effectively resist against loss of magnetization caused by foreign field sources,
  • A magnet with a shiny silver surface looks better,
  • They are known for high magnetic induction at the operating surface, which increases their power,
  • Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their form) at temperatures up to 230°C and above...
  • Due to the option of free shaping and customization to individualized needs, neodymium magnets can be created in a broad palette of geometric configurations, which expands the range of possible applications,
  • Wide application in modern industrial fields – they serve a role in magnetic memories, electromotive mechanisms, advanced medical instruments, and other advanced devices.
  • Compactness – despite small sizes they provide effective action, making them ideal for precision applications

Disadvantages

Disadvantages of NdFeB magnets:
  • To avoid cracks under impact, we suggest using special steel housings. Such a solution protects the magnet and simultaneously improves its durability.
  • When exposed to high temperature, neodymium magnets experience a drop in power. Often, when the temperature exceeds 80°C, their power decreases (depending on the size and 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 recommend using waterproof magnets made of rubber, plastic or other material immune to moisture, when using outdoors
  • Due to limitations in realizing nuts and complicated forms in magnets, we propose using casing - magnetic holder.
  • Health risk related to microscopic parts of magnets are risky, when accidentally swallowed, which gains importance in the aspect of protecting the youngest. It is also worth noting that small elements of these products can complicate diagnosis medical after entering the body.
  • Due to expensive raw materials, their price is relatively high,

Lifting parameters

Best holding force of the magnet in ideal parameterswhat it depends on?

Holding force of 2.32 kg is a theoretical maximum value executed under standard conditions:
  • using a base made of mild steel, acting as a circuit closing element
  • possessing a massiveness of minimum 10 mm to ensure full flux closure
  • characterized by even structure
  • under conditions of ideal adhesion (surface-to-surface)
  • during pulling in a direction vertical to the plane
  • at ambient temperature approx. 20 degrees Celsius

Lifting capacity in practice – influencing factors

In real-world applications, the actual holding force depends on a number of factors, listed from crucial:
  • Distance – the presence of any layer (rust, tape, gap) acts as an insulator, which lowers capacity rapidly (even by 50% at 0.5 mm).
  • Direction of force – maximum parameter is obtained only during pulling at a 90° angle. The force required to slide of the magnet along the plate is standardly many times smaller (approx. 1/5 of the lifting capacity).
  • Substrate thickness – for full efficiency, the steel must be adequately massive. Paper-thin metal restricts the attraction force (the magnet "punches through" it).
  • Steel grade – ideal substrate is pure iron steel. Stainless steels may attract less.
  • Surface quality – the smoother and more polished the plate, the larger the contact zone and higher the lifting capacity. Roughness creates an air distance.
  • Thermal factor – hot environment reduces pulling force. Exceeding the limit temperature can permanently demagnetize the magnet.

Lifting capacity was determined by applying a steel plate with a smooth surface of optimal thickness (min. 20 mm), under perpendicular detachment force, however under attempts to slide the magnet the holding force is lower. Additionally, even a minimal clearance between the magnet’s surface and the plate lowers the lifting capacity.

Safety rules for work with NdFeB magnets
Threat to electronics

Very strong magnetic fields can destroy records on credit cards, hard drives, and storage devices. Keep a distance of min. 10 cm.

Conscious usage

Be careful. Neodymium magnets act from a distance and snap with huge force, often quicker than you can react.

Machining danger

Machining of NdFeB material carries a risk of fire risk. Neodymium dust reacts violently with oxygen and is difficult to extinguish.

Protective goggles

Despite the nickel coating, the material is delicate and cannot withstand shocks. Do not hit, as the magnet may shatter into sharp, dangerous pieces.

Physical harm

Big blocks can break fingers in a fraction of a second. Under no circumstances place your hand between two strong magnets.

Do not give to children

Always store magnets out of reach of children. Risk of swallowing is significant, and the effects of magnets clamping inside the body are very dangerous.

Power loss in heat

Control the heat. Exposing the magnet to high heat will permanently weaken its properties and strength.

Health Danger

Medical warning: Neodymium magnets can deactivate pacemakers and defibrillators. Stay away if you have electronic implants.

Metal Allergy

A percentage of the population suffer from a sensitization to nickel, which is the typical protective layer for neodymium magnets. Extended handling may cause an allergic reaction. It is best to use protective gloves.

GPS Danger

GPS units and smartphones are extremely sensitive to magnetic fields. Close proximity with a powerful NdFeB magnet can ruin the sensors in your phone.

Attention! Need more info? Check our post: Are neodymium magnets dangerous?
Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98