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MPL 15x10x2 / N38 - lamellar magnet

lamellar magnet

Catalog no 020388

GTIN/EAN: 5906301811879

5.00
Load capacity 1.57 kg / 15.45 N Magnetic Induction 180.53 mT / 1805 Gs
length
15 mm [±0,1 mm]
Width
10 mm [±0,1 mm]
Height
2 mm [±0,1 mm]
Weight
2.25 g
Magnetization Direction
↑ axial
Coating
[NiCuNi] Nickel

How we measure these parameters — certificates and measurements

1.070net / pcs

1.316 zł with VAT (23% VAT) / pcs

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price from 1 pcs
1.070 zł
1.316 zł
price from 600 pcs
1.006 zł
1.237 zł
price from 2350 pcs
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1.158 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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Product card - MPL 15x10x2 / N38 - lamellar magnet

Specification / characteristics - MPL 15x10x2 / N38 - lamellar magnet

properties
properties values
Cat. no. 020388
GTIN/EAN 5906301811879
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 15 mm [±0,1 mm]
Width 10 mm [±0,1 mm]
Height 2 mm [±0,1 mm]
Weight 2.25 g
Magnetization Direction ↑ axial
Load capacity ~ ? 1.57 kg / 15.45 N
Magnetic Induction ~ ? 180.53 mT / 1805 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MPL 15x10x2 / 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

Engineering modeling of the magnet - report

The following information are the outcome of a physical calculation. Values rely on algorithms for the material Nd2Fe14B. Real-world conditions might slightly deviate from the simulation results. Use these calculations as a preliminary roadmap during assembly planning.

Table 1: Static force (pull vs distance) - interaction chart
MPL 15x10x2 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 1805 Gs
180.5 mT
1.57 kg / 3.46 LBS
1570.0 g / 15.4 N
low risk
1 mm 1628 Gs
162.8 mT
1.28 kg / 2.82 LBS
1278.3 g / 12.5 N
low risk
2 mm 1394 Gs
139.4 mT
0.94 kg / 2.06 LBS
936.3 g / 9.2 N
low risk
3 mm 1152 Gs
115.2 mT
0.64 kg / 1.41 LBS
639.9 g / 6.3 N
low risk
5 mm 751 Gs
75.1 mT
0.27 kg / 0.60 LBS
271.5 g / 2.7 N
low risk
10 mm 262 Gs
26.2 mT
0.03 kg / 0.07 LBS
33.1 g / 0.3 N
low risk
15 mm 110 Gs
11.0 mT
0.01 kg / 0.01 LBS
5.8 g / 0.1 N
low risk
20 mm 54 Gs
5.4 mT
0.00 kg / 0.00 LBS
1.4 g / 0.0 N
low risk
30 mm 18 Gs
1.8 mT
0.00 kg / 0.00 LBS
0.2 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: Vertical capacity (vertical surface)
MPL 15x10x2 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 0.31 kg / 0.69 LBS
314.0 g / 3.1 N
1 mm Stal (~0.2) 0.26 kg / 0.56 LBS
256.0 g / 2.5 N
2 mm Stal (~0.2) 0.19 kg / 0.41 LBS
188.0 g / 1.8 N
3 mm Stal (~0.2) 0.13 kg / 0.28 LBS
128.0 g / 1.3 N
5 mm Stal (~0.2) 0.05 kg / 0.12 LBS
54.0 g / 0.5 N
10 mm Stal (~0.2) 0.01 kg / 0.01 LBS
6.0 g / 0.1 N
15 mm Stal (~0.2) 0.00 kg / 0.00 LBS
2.0 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 15x10x2 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
0.47 kg / 1.04 LBS
471.0 g / 4.6 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
0.31 kg / 0.69 LBS
314.0 g / 3.1 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.16 kg / 0.35 LBS
157.0 g / 1.5 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
0.79 kg / 1.73 LBS
785.0 g / 7.7 N

Table 4: Steel thickness (saturation) - sheet metal selection
MPL 15x10x2 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
10%
0.16 kg / 0.35 LBS
157.0 g / 1.5 N
1 mm
25%
0.39 kg / 0.87 LBS
392.5 g / 3.9 N
2 mm
50%
0.79 kg / 1.73 LBS
785.0 g / 7.7 N
3 mm
75%
1.18 kg / 2.60 LBS
1177.5 g / 11.6 N
5 mm
100%
1.57 kg / 3.46 LBS
1570.0 g / 15.4 N
10 mm
100%
1.57 kg / 3.46 LBS
1570.0 g / 15.4 N
11 mm
100%
1.57 kg / 3.46 LBS
1570.0 g / 15.4 N
12 mm
100%
1.57 kg / 3.46 LBS
1570.0 g / 15.4 N

Table 5: Working in heat (stability) - thermal limit
MPL 15x10x2 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 1.57 kg / 3.46 LBS
1570.0 g / 15.4 N
OK
40 °C -2.2% 1.54 kg / 3.39 LBS
1535.5 g / 15.1 N
OK
60 °C -4.4% 1.50 kg / 3.31 LBS
1500.9 g / 14.7 N
80 °C -6.6% 1.47 kg / 3.23 LBS
1466.4 g / 14.4 N
100 °C -28.8% 1.12 kg / 2.46 LBS
1117.8 g / 11.0 N

Table 6: Two magnets (repulsion) - field collision
MPL 15x10x2 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Shear Force (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 3.01 kg / 6.64 LBS
3 196 Gs
0.45 kg / 1.00 LBS
452 g / 4.4 N
N/A
1 mm 2.76 kg / 6.09 LBS
3 456 Gs
0.41 kg / 0.91 LBS
414 g / 4.1 N
2.49 kg / 5.48 LBS
~0 Gs
2 mm 2.45 kg / 5.41 LBS
3 257 Gs
0.37 kg / 0.81 LBS
368 g / 3.6 N
2.21 kg / 4.87 LBS
~0 Gs
3 mm 2.12 kg / 4.68 LBS
3 029 Gs
0.32 kg / 0.70 LBS
318 g / 3.1 N
1.91 kg / 4.21 LBS
~0 Gs
5 mm 1.49 kg / 3.30 LBS
2 543 Gs
0.22 kg / 0.49 LBS
224 g / 2.2 N
1.35 kg / 2.97 LBS
~0 Gs
10 mm 0.52 kg / 1.15 LBS
1 501 Gs
0.08 kg / 0.17 LBS
78 g / 0.8 N
0.47 kg / 1.03 LBS
~0 Gs
20 mm 0.06 kg / 0.14 LBS
524 Gs
0.01 kg / 0.02 LBS
10 g / 0.1 N
0.06 kg / 0.13 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
37 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) (electronics) - precautionary measures
MPL 15x10x2 / 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
Mobile device 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: Impact energy (kinetic energy) - warning
MPL 15x10x2 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 23.20 km/h
(6.44 m/s)
0.05 J
30 mm 23.43 km/h
(6.51 m/s)
0.05 J
50 mm 23.41 km/h
(6.50 m/s)
0.05 J
100 mm 23.44 km/h
(6.51 m/s)
0.05 J

Table 9: Anti-corrosion coating durability
MPL 15x10x2 / 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 15x10x2 / N38

Parameter Value SI Unit / Description
Magnetic Flux 3 194 Mx 31.9 µWb
Pc Coefficient 0.22 Low (Flat)

Table 11: Physics of underwater searching
MPL 15x10x2 / N38

Environment Effective steel pull Effect
Air (land) 1.57 kg Standard
Water (riverbed) 1.80 kg
(+0.23 kg buoyancy gain)
+14.5%
Corrosion warning: Standard nickel requires drying after every contact with moisture; lack of maintenance will lead to rust spots.

1. Shear force

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

2. Steel thickness impact

*Thin steel (e.g. 0.5mm PC case) severely reduces the holding force.

3. Power loss vs temp

*For standard magnets, the max working temp is 80°C.

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

chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.22

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.

Technical specification and ecology

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: 020388-2026
Quick Unit Converter

Magnet pull force


Magnetic Induction

Other products

Model MPL 15x10x2 / N38 features a flat shape and industrial pulling force, making it an ideal solution for building separators and machines. This rectangular block with a force of 15.45 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 15x10x2 / 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.
They constitute a key element in the production of generators and material handling systems. They work great as invisible mounts under tiles, wood, or glass. Their rectangular shape facilitates precise gluing into milled sockets in wood or plastic.
For mounting flat magnets MPL 15x10x2 / 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).
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 (15x10 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: 15 mm (length), 10 mm (width), and 2 mm (thickness). It is a magnetic block with dimensions 15x10x2 mm and a self-weight of 2.25 g, ready to work at temperatures up to 80°C. The protective [NiCuNi] coating secures the magnet against corrosion.

Strengths and weaknesses of neodymium magnets.

Strengths

Apart from their strong magnetism, neodymium magnets have these key benefits:
  • They virtually do not lose power, because even after ten years the decline in efficiency is only ~1% (based on calculations),
  • They have excellent resistance to magnetism drop when exposed to external fields,
  • The use of an aesthetic coating of noble metals (nickel, gold, silver) causes the element to be more visually attractive,
  • Magnets exhibit impressive magnetic induction on the active area,
  • Thanks to resistance to high temperature, they are capable of working (depending on the form) even at temperatures up to 230°C and higher...
  • Possibility of exact shaping as well as adjusting to concrete applications,
  • Key role in advanced technology sectors – they are commonly used in magnetic memories, electric motors, medical devices, also other advanced devices.
  • Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in tiny dimensions, which makes them useful in miniature devices

Limitations

Problematic aspects of neodymium magnets: weaknesses and usage proposals
  • They are prone to damage upon heavy impacts. To avoid cracks, it is worth securing magnets using a steel holder. Such protection not only protects the magnet but also improves its resistance to damage
  • When exposed to high temperature, neodymium magnets suffer a drop in force. 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
  • They oxidize in a humid environment - during use outdoors we recommend using waterproof magnets e.g. in rubber, plastic
  • Limited possibility of making nuts in the magnet and complex forms - preferred is a housing - mounting mechanism.
  • Potential hazard to health – tiny shards of magnets are risky, when accidentally swallowed, which is particularly important in the context of child health protection. Furthermore, small components of these devices can disrupt the diagnostic process medical in case of swallowing.
  • Due to expensive raw materials, their price is higher than average,

Pull force analysis

Maximum holding power of the magnet – what it depends on?

The load parameter shown represents the peak performance, obtained under laboratory conditions, namely:
  • with the application of a yoke made of low-carbon steel, ensuring full magnetic saturation
  • with a cross-section of at least 10 mm
  • characterized by smoothness
  • under conditions of ideal adhesion (surface-to-surface)
  • during detachment in a direction perpendicular to the mounting surface
  • at ambient temperature approx. 20 degrees Celsius

Determinants of lifting force in real conditions

In real-world applications, the actual lifting capacity depends on several key aspects, ranked from crucial:
  • Distance – existence of any layer (paint, tape, gap) acts as an insulator, which lowers power rapidly (even by 50% at 0.5 mm).
  • Load vector – highest force is obtained only during pulling at a 90° angle. The resistance to sliding of the magnet along the plate is typically many times smaller (approx. 1/5 of the lifting capacity).
  • Wall thickness – the thinner the sheet, the weaker the hold. Magnetic flux passes through the material instead of converting into lifting capacity.
  • Chemical composition of the base – low-carbon steel gives the best results. Alloy steels reduce magnetic properties and holding force.
  • Smoothness – full contact is possible only on smooth steel. Any scratches and bumps reduce the real contact area, weakening the magnet.
  • Temperature – temperature increase results in weakening of force. It is worth remembering the thermal limit for a given model.

Holding force was checked on the plate surface of 20 mm thickness, when the force acted perpendicularly, in contrast under shearing force the holding force is lower. Additionally, even a slight gap between the magnet’s surface and the plate decreases the holding force.

Safety rules for work with neodymium magnets
Machining danger

Powder created during machining of magnets is combustible. Avoid drilling into magnets without proper cooling and knowledge.

Protect data

Data protection: Neodymium magnets can ruin data carriers and sensitive devices (pacemakers, medical aids, mechanical watches).

Do not overheat magnets

Monitor thermal conditions. Heating the magnet to high heat will ruin its magnetic structure and strength.

Magnets are brittle

Despite metallic appearance, the material is brittle and not impact-resistant. Avoid impacts, as the magnet may shatter into hazardous fragments.

Pacemakers

For implant holders: Powerful magnets disrupt medical devices. Keep minimum 30 cm distance or request help to handle the magnets.

Powerful field

Before starting, check safety instructions. Uncontrolled attraction can break the magnet or hurt your hand. Think ahead.

GPS Danger

Be aware: rare earth magnets generate a field that confuses precision electronics. Keep a separation from your mobile, device, and navigation systems.

Allergic reactions

It is widely known that the nickel plating (standard magnet coating) is a strong allergen. If you have an allergy, prevent touching magnets with bare hands or choose versions in plastic housing.

Keep away from children

Only for adults. Tiny parts pose a choking risk, leading to serious injuries. Keep away from kids and pets.

Bone fractures

Big blocks can break fingers instantly. Do not put your hand betwixt two attracting surfaces.

Safety First! Learn more about risks in the article: Safety of working with magnets.