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MPL 10x4x1.5 / N38 - lamellar magnet

lamellar magnet

Catalog no 020113

GTIN/EAN: 5906301811190

5.00

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

0.246 with VAT / pcs + price for transport

0.200 ZŁ net + 23% VAT / pcs

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Lifting power as well as structure of a neodymium magnet can be reviewed using our magnetic calculator.

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Technical data of the product - 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
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 modeling of the magnet - report

Presented values represent the result of a mathematical simulation. Values were calculated on algorithms for the material Nd2Fe14B. Operational parameters might slightly deviate from the simulation results. Treat these calculations as a reference point during assembly planning.

Table 1: Static force (pull vs distance) - 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 lbs
880.0 g / 8.6 N
safe
1 mm 1882 Gs
188.2 mT
0.41 kg / 0.91 lbs
413.1 g / 4.1 N
safe
2 mm 1175 Gs
117.5 mT
0.16 kg / 0.35 lbs
161.0 g / 1.6 N
safe
3 mm 746 Gs
74.6 mT
0.06 kg / 0.14 lbs
64.9 g / 0.6 N
safe
5 mm 337 Gs
33.7 mT
0.01 kg / 0.03 lbs
13.3 g / 0.1 N
safe
10 mm 77 Gs
7.7 mT
0.00 kg / 0.00 lbs
0.7 g / 0.0 N
safe
15 mm 27 Gs
2.7 mT
0.00 kg / 0.00 lbs
0.1 g / 0.0 N
safe
20 mm 12 Gs
1.2 mT
0.00 kg / 0.00 lbs
0.0 g / 0.0 N
safe
30 mm 4 Gs
0.4 mT
0.00 kg / 0.00 lbs
0.0 g / 0.0 N
safe
50 mm 1 Gs
0.1 mT
0.00 kg / 0.00 lbs
0.0 g / 0.0 N
safe

Table 2: Vertical force (wall)
MPL 10x4x1.5 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 0.18 kg / 0.39 lbs
176.0 g / 1.7 N
1 mm Stal (~0.2) 0.08 kg / 0.18 lbs
82.0 g / 0.8 N
2 mm Stal (~0.2) 0.03 kg / 0.07 lbs
32.0 g / 0.3 N
3 mm Stal (~0.2) 0.01 kg / 0.03 lbs
12.0 g / 0.1 N
5 mm Stal (~0.2) 0.00 kg / 0.00 lbs
2.0 g / 0.0 N
10 mm Stal (~0.2) 0.00 kg / 0.00 lbs
0.0 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) - 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 lbs
264.0 g / 2.6 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
0.18 kg / 0.39 lbs
176.0 g / 1.7 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.09 kg / 0.19 lbs
88.0 g / 0.9 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
0.44 kg / 0.97 lbs
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 lbs
88.0 g / 0.9 N
1 mm
25%
0.22 kg / 0.49 lbs
220.0 g / 2.2 N
2 mm
50%
0.44 kg / 0.97 lbs
440.0 g / 4.3 N
3 mm
75%
0.66 kg / 1.46 lbs
660.0 g / 6.5 N
5 mm
100%
0.88 kg / 1.94 lbs
880.0 g / 8.6 N
10 mm
100%
0.88 kg / 1.94 lbs
880.0 g / 8.6 N
11 mm
100%
0.88 kg / 1.94 lbs
880.0 g / 8.6 N
12 mm
100%
0.88 kg / 1.94 lbs
880.0 g / 8.6 N

Table 5: Thermal stability (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 lbs
880.0 g / 8.6 N
OK
40 °C -2.2% 0.86 kg / 1.90 lbs
860.6 g / 8.4 N
OK
60 °C -4.4% 0.84 kg / 1.85 lbs
841.3 g / 8.3 N
80 °C -6.6% 0.82 kg / 1.81 lbs
821.9 g / 8.1 N
100 °C -28.8% 0.63 kg / 1.38 lbs
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 Force (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 1.86 kg / 4.10 lbs
4 229 Gs
0.28 kg / 0.62 lbs
279 g / 2.7 N
N/A
1 mm 1.34 kg / 2.95 lbs
4 661 Gs
0.20 kg / 0.44 lbs
201 g / 2.0 N
1.21 kg / 2.66 lbs
~0 Gs
2 mm 0.87 kg / 1.93 lbs
3 764 Gs
0.13 kg / 0.29 lbs
131 g / 1.3 N
0.79 kg / 1.73 lbs
~0 Gs
3 mm 0.55 kg / 1.21 lbs
2 978 Gs
0.08 kg / 0.18 lbs
82 g / 0.8 N
0.49 kg / 1.09 lbs
~0 Gs
5 mm 0.21 kg / 0.47 lbs
1 864 Gs
0.03 kg / 0.07 lbs
32 g / 0.3 N
0.19 kg / 0.43 lbs
~0 Gs
10 mm 0.03 kg / 0.06 lbs
675 Gs
0.00 kg / 0.01 lbs
4 g / 0.0 N
0.03 kg / 0.06 lbs
~0 Gs
20 mm 0.00 kg / 0.00 lbs
154 Gs
0.00 kg / 0.00 lbs
0 g / 0.0 N
0.00 kg / 0.00 lbs
~0 Gs
50 mm 0.00 kg / 0.00 lbs
13 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
8 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
5 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
3 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
2 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
2 Gs
0.00 kg / 0.00 lbs
0 g / 0.0 N
0.00 kg / 0.00 lbs
~0 Gs

Table 7: Hazards (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
Timepiece 20 Gs (2.0 mT) 2.0 cm
Mobile device 40 Gs (4.0 mT) 1.5 cm
Remote 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 (cracking risk) - warning
MPL 10x4x1.5 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 44.62 km/h
(12.39 m/s)
0.03 J
30 mm 77.25 km/h
(21.46 m/s)
0.10 J
50 mm 99.72 km/h
(27.70 m/s)
0.17 J
100 mm 141.03 km/h
(39.18 m/s)
0.35 J

Table 9: Surface protection spec
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 (Flux)
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: Submerged application
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%
Corrosion warning: 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 holds merely ~20% of its perpendicular strength.

2. Steel saturation

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

3. Thermal stability

*For N38 material, the max working temp is 80°C.

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

chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.30

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%
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

Field Strength

Other offers

This product is an extremely strong plate magnet made of NdFeB material, which, with dimensions of 10x4x1.5 mm and a weight of 0.45 g, guarantees premium class connection. As a magnetic bar with high power (approx. 0.88 kg), this product is available off-the-shelf from our warehouse in Poland. Furthermore, its Ni-Cu-Ni coating protects it against corrosion in standard operating conditions, giving it an aesthetic appearance.
Separating strong flat magnets requires a technique based on sliding (moving one relative to the other), rather than forceful pulling apart. 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. Using a screwdriver risks destroying the coating and permanently cracking the magnet.
Plate magnets MPL 10x4x1.5 / N38 are the foundation for many industrial devices, such as filters catching filings and linear motors. Thanks to the flat surface and high force (approx. 0.88 kg), they are ideal as hidden locks in furniture making and mounting elements in automation. Their rectangular shape facilitates precise gluing into milled sockets in wood or plastic.
For mounting flat magnets MPL 10x4x1.5 / N38, we recommend utilizing strong epoxy glues (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. Avoid chemically aggressive glues or hot glue, which can demagnetize neodymium (above 80°C).
Standardly, the MPL 10x4x1.5 / N38 model is magnetized through the thickness (dimension 1.5 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), 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 flat shape, proves the high grade of the material. The product meets the standards for N38 grade magnets.

Strengths as well as weaknesses of Nd2Fe14B magnets.

Pros

In addition to their magnetic efficiency, neodymium magnets provide the following advantages:
  • Their power remains stable, and after approximately ten years it drops only by ~1% (theoretically),
  • They possess excellent resistance to magnetism drop when exposed to external magnetic sources,
  • A magnet with a metallic silver surface looks better,
  • The surface of neodymium magnets generates a powerful magnetic field – this is one of their assets,
  • Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and can work (depending on the form) even at a temperature of 230°C or more...
  • Due to the ability of flexible forming and customization to individualized projects, NdFeB magnets can be created in a wide range of geometric configurations, which increases their versatility,
  • Wide application in modern industrial fields – they are commonly used in computer drives, drive modules, precision medical tools, and technologically advanced constructions.
  • Relatively small size with high pulling force – neodymium magnets offer high power in compact dimensions, which enables their usage in miniature devices

Weaknesses

Problematic aspects of neodymium magnets: weaknesses and usage proposals
  • Susceptibility to cracking is one of their disadvantages. Upon intense impact they can fracture. We recommend keeping them in a special holder, which not only secures them against impacts but also increases their durability
  • Neodymium magnets lose their force 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
  • Magnets exposed to a humid environment can rust. Therefore when using outdoors, we recommend using waterproof magnets made of rubber, plastic or other material resistant to moisture
  • We recommend cover - magnetic mechanism, due to difficulties in creating nuts inside the magnet and complex forms.
  • Possible danger related to microscopic parts of magnets are risky, in case of ingestion, which is particularly important in the aspect of protecting the youngest. Additionally, small elements of these magnets are able to disrupt the diagnostic process medical after entering the body.
  • Higher cost of purchase is one of the disadvantages compared to ceramic magnets, especially in budget applications

Holding force characteristics

Detachment force of the magnet in optimal conditionswhat affects it?

The specified lifting capacity concerns the maximum value, obtained under optimal environment, namely:
  • using a base made of low-carbon steel, functioning as a magnetic yoke
  • possessing a thickness of min. 10 mm to ensure full flux closure
  • characterized by even structure
  • under conditions of no distance (metal-to-metal)
  • during detachment in a direction vertical to the plane
  • in temp. approx. 20°C

Practical aspects of lifting capacity – factors

Holding efficiency is influenced by specific conditions, mainly (from priority):
  • Gap (between the magnet and the metal), as even a microscopic distance (e.g. 0.5 mm) can cause a drastic drop in lifting capacity by up to 50% (this also applies to paint, rust or debris).
  • Force direction – declared lifting capacity refers to pulling vertically. When applying parallel force, the magnet holds significantly lower power (typically approx. 20-30% of maximum force).
  • Metal thickness – the thinner the sheet, the weaker the hold. Magnetic flux passes through the material instead of generating force.
  • Material composition – different alloys attracts identically. Alloy additives weaken the attraction effect.
  • Surface finish – ideal contact is obtained only on polished steel. Any scratches and bumps reduce the real contact area, weakening the magnet.
  • Temperature – heating the magnet results in weakening of induction. Check the thermal limit for a given model.

Lifting capacity was determined with the use of a polished steel plate of suitable thickness (min. 20 mm), under perpendicular detachment force, whereas under attempts to slide the magnet the load capacity is reduced by as much as 5 times. In addition, even a small distance between the magnet’s surface and the plate lowers the lifting capacity.

Safety rules for work with neodymium magnets
Swallowing risk

NdFeB magnets are not intended for children. Accidental ingestion of multiple magnets can lead to them pinching intestinal walls, which poses a critical condition and necessitates urgent medical intervention.

Permanent damage

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

Danger to pacemakers

Warning for patients: Powerful magnets affect electronics. Keep at least 30 cm distance or ask another person to handle the magnets.

Electronic hazard

Intense magnetic fields can erase data on credit cards, HDDs, and storage devices. Maintain a gap of at least 10 cm.

Risk of cracking

Despite metallic appearance, the material is brittle and cannot withstand shocks. Avoid impacts, as the magnet may crumble into sharp, dangerous pieces.

Allergic reactions

It is widely known that nickel (the usual finish) is a potent allergen. For allergy sufferers, prevent direct skin contact and select coated magnets.

Impact on smartphones

An intense magnetic field disrupts the functioning of magnetometers in phones and GPS navigation. Do not bring magnets close to a smartphone to prevent damaging the sensors.

Physical harm

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

Respect the power

Handle with care. Neodymium magnets act from a distance and snap with huge force, often faster than you can react.

Mechanical processing

Dust generated during grinding of magnets is self-igniting. Do not drill into magnets without proper cooling and knowledge.

Security! Learn more about risks in the article: Safety of working with magnets.
Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98