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MPL 10x4x1.5 / N38 - lamellar magnet

lamellar magnet

Catalog no 020113

GTIN/EAN: 5906301811190

5.00
Load capacity 0.88 kg / 8.65 N Magnetic Induction 274.96 mT / 2750 Gs
length
10 mm [±0,1 mm]
Width
4 mm [±0,1 mm]
Height
1.5 mm [±0,1 mm]
Weight
0.45 g
Magnetization Direction
↑ axial
Coating
[NiCuNi] Nickel

How we measure these parameters — certificates and measurements

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Gross
price from 1 pcs
0.200 zł
0.246 zł
price from 3000 pcs
0.1880 zł
0.231 zł
price from 12500 pcs
0.1760 zł
0.216 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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Specifications and structure of a neodymium magnet can be estimated using our power calculator.

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Technical data - MPL 10x4x1.5 / N38 - lamellar magnet

Specification / characteristics - MPL 10x4x1.5 / N38 - lamellar magnet

properties
properties values
Cat. no. 020113
GTIN/EAN 5906301811190
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 4 mm [±0,1 mm]
Height 1.5 mm [±0,1 mm]
Weight 0.45 g
Magnetization Direction ↑ axial
Load capacity ~ ? 0.88 kg / 8.65 N
Magnetic Induction ~ ? 274.96 mT / 2750 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MPL 10x4x1.5 / 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

Technical modeling of the product - report

These values represent the direct effect of a mathematical simulation. Values rely on algorithms for the material Nd2Fe14B. Actual parameters might slightly deviate from the simulation results. Use these calculations as a supplementary guide during assembly planning.

Table 1: Static pull force (force vs gap) - characteristics
MPL 10x4x1.5 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 2747 Gs
274.7 mT
0.88 kg / 1.94 pounds
880.0 g / 8.6 N
weak grip
1 mm 1882 Gs
188.2 mT
0.41 kg / 0.91 pounds
413.1 g / 4.1 N
weak grip
2 mm 1175 Gs
117.5 mT
0.16 kg / 0.35 pounds
161.0 g / 1.6 N
weak grip
3 mm 746 Gs
74.6 mT
0.06 kg / 0.14 pounds
64.9 g / 0.6 N
weak grip
5 mm 337 Gs
33.7 mT
0.01 kg / 0.03 pounds
13.3 g / 0.1 N
weak grip
10 mm 77 Gs
7.7 mT
0.00 kg / 0.00 pounds
0.7 g / 0.0 N
weak grip
15 mm 27 Gs
2.7 mT
0.00 kg / 0.00 pounds
0.1 g / 0.0 N
weak grip
20 mm 12 Gs
1.2 mT
0.00 kg / 0.00 pounds
0.0 g / 0.0 N
weak grip
30 mm 4 Gs
0.4 mT
0.00 kg / 0.00 pounds
0.0 g / 0.0 N
weak grip
50 mm 1 Gs
0.1 mT
0.00 kg / 0.00 pounds
0.0 g / 0.0 N
weak grip

Table 2: Slippage force (vertical surface)
MPL 10x4x1.5 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 0.18 kg / 0.39 pounds
176.0 g / 1.7 N
1 mm Stal (~0.2) 0.08 kg / 0.18 pounds
82.0 g / 0.8 N
2 mm Stal (~0.2) 0.03 kg / 0.07 pounds
32.0 g / 0.3 N
3 mm Stal (~0.2) 0.01 kg / 0.03 pounds
12.0 g / 0.1 N
5 mm Stal (~0.2) 0.00 kg / 0.00 pounds
2.0 g / 0.0 N
10 mm Stal (~0.2) 0.00 kg / 0.00 pounds
0.0 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: Wall mounting (sliding) - behavior on slippery surfaces
MPL 10x4x1.5 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
0.26 kg / 0.58 pounds
264.0 g / 2.6 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
0.18 kg / 0.39 pounds
176.0 g / 1.7 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.09 kg / 0.19 pounds
88.0 g / 0.9 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
0.44 kg / 0.97 pounds
440.0 g / 4.3 N

Table 4: Steel thickness (saturation) - sheet metal selection
MPL 10x4x1.5 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
10%
0.09 kg / 0.19 pounds
88.0 g / 0.9 N
1 mm
25%
0.22 kg / 0.49 pounds
220.0 g / 2.2 N
2 mm
50%
0.44 kg / 0.97 pounds
440.0 g / 4.3 N
3 mm
75%
0.66 kg / 1.46 pounds
660.0 g / 6.5 N
5 mm
100%
0.88 kg / 1.94 pounds
880.0 g / 8.6 N
10 mm
100%
0.88 kg / 1.94 pounds
880.0 g / 8.6 N
11 mm
100%
0.88 kg / 1.94 pounds
880.0 g / 8.6 N
12 mm
100%
0.88 kg / 1.94 pounds
880.0 g / 8.6 N

Table 5: Working in heat (material behavior) - thermal limit
MPL 10x4x1.5 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 0.88 kg / 1.94 pounds
880.0 g / 8.6 N
OK
40 °C -2.2% 0.86 kg / 1.90 pounds
860.6 g / 8.4 N
OK
60 °C -4.4% 0.84 kg / 1.85 pounds
841.3 g / 8.3 N
80 °C -6.6% 0.82 kg / 1.81 pounds
821.9 g / 8.1 N
100 °C -28.8% 0.63 kg / 1.38 pounds
626.6 g / 6.1 N

Table 6: Two magnets (repulsion) - field collision
MPL 10x4x1.5 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Shear Strength (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 1.86 kg / 4.10 pounds
4 229 Gs
0.28 kg / 0.62 pounds
279 g / 2.7 N
N/A
1 mm 1.34 kg / 2.95 pounds
4 661 Gs
0.20 kg / 0.44 pounds
201 g / 2.0 N
1.21 kg / 2.66 pounds
~0 Gs
2 mm 0.87 kg / 1.93 pounds
3 764 Gs
0.13 kg / 0.29 pounds
131 g / 1.3 N
0.79 kg / 1.73 pounds
~0 Gs
3 mm 0.55 kg / 1.21 pounds
2 978 Gs
0.08 kg / 0.18 pounds
82 g / 0.8 N
0.49 kg / 1.09 pounds
~0 Gs
5 mm 0.21 kg / 0.47 pounds
1 864 Gs
0.03 kg / 0.07 pounds
32 g / 0.3 N
0.19 kg / 0.43 pounds
~0 Gs
10 mm 0.03 kg / 0.06 pounds
675 Gs
0.00 kg / 0.01 pounds
4 g / 0.0 N
0.03 kg / 0.06 pounds
~0 Gs
20 mm 0.00 kg / 0.00 pounds
154 Gs
0.00 kg / 0.00 pounds
0 g / 0.0 N
0.00 kg / 0.00 pounds
~0 Gs
50 mm 0.00 kg / 0.00 pounds
13 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
8 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
5 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
3 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
2 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
2 Gs
0.00 kg / 0.00 pounds
0 g / 0.0 N
0.00 kg / 0.00 pounds
~0 Gs

Table 7: Protective zones (electronics) - precautionary measures
MPL 10x4x1.5 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 3.0 cm
Hearing aid 10 Gs (1.0 mT) 2.5 cm
Mechanical watch 20 Gs (2.0 mT) 2.0 cm
Phone / Smartphone 40 Gs (4.0 mT) 1.5 cm
Car key 50 Gs (5.0 mT) 1.5 cm
Payment card 400 Gs (40.0 mT) 0.5 cm
HDD hard drive 600 Gs (60.0 mT) 0.5 cm

Table 8: Collisions (kinetic energy) - collision effects
MPL 10x4x1.5 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 24.93 km/h
(6.93 m/s)
0.01 J
30 mm 24.94 km/h
(6.93 m/s)
0.01 J
50 mm 24.93 km/h
(6.92 m/s)
0.01 J
100 mm 24.95 km/h
(6.93 m/s)
0.01 J

Table 9: Corrosion resistance
MPL 10x4x1.5 / 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 10x4x1.5 / N38

Parameter Value SI Unit / Description
Magnetic Flux 1 104 Mx 11.0 µWb
Pc Coefficient 0.30 Low (Flat)

Table 11: Hydrostatics and buoyancy
MPL 10x4x1.5 / N38

Environment Effective steel pull Effect
Air (land) 0.88 kg Standard
Water (riverbed) 1.01 kg
(+0.13 kg buoyancy gain)
+14.5%
Warning: Standard nickel requires drying after every contact with moisture; lack of maintenance will lead to rust spots.

1. Sliding resistance

*Warning: On a vertical surface, the magnet retains merely ~20% of its max power.

2. Efficiency vs thickness

*Thin steel (e.g. 0.5mm PC case) significantly limits the holding force.

3. Temperature resistance

*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) = 0.30

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%

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: 020113-2026
Magnet Unit Converter

Magnet pull force


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Other deals

Component MPL 10x4x1.5 / 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 8.65 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 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. To separate the MPL 10x4x1.5 / 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 10x4x1.5 / N38 are the foundation for many industrial devices, such as filters catching filings 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.
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 10x4x1.5 / N38 model is magnetized axially (dimension 1.5 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 (10x4 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), 4 mm (width), and 1.5 mm (thickness). The key parameter here is the holding force amounting to approximately 0.88 kg (force ~8.65 N), which, with such a compact shape, proves the high grade of the material. The protective [NiCuNi] coating secures the magnet against corrosion.

Advantages and disadvantages of rare earth magnets.

Benefits

Besides their exceptional magnetic power, neodymium magnets offer the following advantages:
  • They retain magnetic properties for almost 10 years – the loss is just ~1% (in theory),
  • They maintain their magnetic properties even under close interference source,
  • The use of an metallic layer of noble metals (nickel, gold, silver) causes the element to be more visually attractive,
  • Magnets are distinguished by excellent magnetic induction on the active area,
  • 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...
  • Thanks to the potential of accurate molding and adaptation to individualized requirements, magnetic components can be created in a broad palette of forms and dimensions, which expands the range of possible applications,
  • Key role in advanced technology sectors – they find application in HDD drives, motor assemblies, diagnostic systems, as well as other advanced devices.
  • Thanks to their power density, small magnets offer high operating force, occupying minimum space,

Weaknesses

Disadvantages of NdFeB magnets:
  • Brittleness is one of their disadvantages. Upon strong impact they can fracture. We advise keeping them in a steel housing, which not only secures them against impacts but also raises their durability
  • Neodymium magnets lose their strength 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
  • They rust in a humid environment - during use outdoors we recommend using waterproof magnets e.g. in rubber, plastic
  • We recommend casing - magnetic mount, due to difficulties in producing threads inside the magnet and complex shapes.
  • Health risk to health – tiny shards of magnets are risky, when accidentally swallowed, which gains importance in the context of child safety. It is also worth noting that small components of these devices are able to complicate diagnosis medical after entering the body.
  • High unit price – neodymium magnets are more expensive than other types of magnets (e.g. ferrite), which can limit application in large quantities

Lifting parameters

Detachment force of the magnet in optimal conditionswhat it depends on?

Information about lifting capacity was determined for ideal contact conditions, including:
  • on a base made of mild steel, optimally conducting the magnetic field
  • whose thickness reaches at least 10 mm
  • with an polished touching surface
  • without any insulating layer between the magnet and steel
  • for force applied at a right angle (pull-off, not shear)
  • in neutral thermal conditions

Lifting capacity in real conditions – factors

During everyday use, the real power depends on several key aspects, listed from most significant:
  • Gap (betwixt the magnet and the metal), since even a very small clearance (e.g. 0.5 mm) results in a drastic drop in force by up to 50% (this also applies to varnish, rust or debris).
  • Pull-off angle – remember that the magnet has greatest strength perpendicularly. Under shear forces, the capacity drops drastically, often to levels of 20-30% of the maximum value.
  • Substrate thickness – for full efficiency, the steel must be sufficiently thick. Thin sheet restricts the lifting capacity (the magnet "punches through" it).
  • Steel grade – the best choice is high-permeability steel. Stainless steels may generate lower lifting capacity.
  • Surface finish – ideal contact is obtained only on smooth steel. Any scratches and bumps reduce the real contact area, weakening the magnet.
  • Operating temperature – neodymium magnets have a negative temperature coefficient. When it is hot they lose power, and in frost they can be stronger (up to a certain limit).

Lifting capacity was measured with the use of a smooth steel plate of suitable thickness (min. 20 mm), under perpendicular pulling force, in contrast under parallel forces the holding force is lower. Moreover, even a slight gap between the magnet’s surface and the plate reduces the holding force.

H&S for magnets
Keep away from computers

Intense magnetic fields can corrupt files on payment cards, HDDs, and other magnetic media. Keep a distance of min. 10 cm.

Allergic reactions

It is widely known that the nickel plating (the usual finish) is a common allergen. For allergy sufferers, prevent touching magnets with bare hands and choose coated magnets.

Heat warning

Avoid heat. Neodymium magnets are sensitive to temperature. If you require resistance above 80°C, inquire about special high-temperature series (H, SH, UH).

Combustion hazard

Mechanical processing of neodymium magnets poses a fire hazard. Magnetic powder oxidizes rapidly with oxygen and is difficult to extinguish.

Risk of cracking

Beware of splinters. Magnets can fracture upon uncontrolled impact, launching shards into the air. Eye protection is mandatory.

Danger to the youngest

Strictly keep magnets out of reach of children. Ingestion danger is high, and the effects of magnets clamping inside the body are very dangerous.

Magnetic interference

A strong magnetic field negatively affects the functioning of magnetometers in smartphones and GPS navigation. Maintain magnets near a smartphone to prevent damaging the sensors.

Crushing risk

Danger of trauma: The attraction force is so great that it can result in hematomas, pinching, and even bone fractures. Protective gloves are recommended.

Handling guide

Use magnets with awareness. Their immense force can shock even experienced users. Plan your moves and respect their force.

Medical implants

Patients with a ICD have to maintain an absolute distance from magnets. The magnetic field can disrupt the operation of the implant.

Important! Learn more about risks in the article: Magnet Safety Guide.