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MPL 11x11x1 / N38 - lamellar magnet

lamellar magnet

Catalog no 020116

GTIN/EAN: 5906301811220

5.00
Load capacity 0.43 kg / 4.24 N Magnetic Induction 100.10 mT / 1001 Gs
length
11 mm [±0,1 mm]
Width
11 mm [±0,1 mm]
Height
1 mm [±0,1 mm]
Weight
0.91 g
Magnetization Direction
↑ axial
Coating
[NiCuNi] Nickel

How we measure these parameters — certificates and measurements

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price from 1 pcs
0.710 zł
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price from 900 pcs
0.667 zł
0.821 zł
price from 3600 pcs
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0.769 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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Call us now +48 888 99 98 98 alternatively let us know using contact form the contact section.
Specifications and structure of a neodymium magnet can be estimated using our power calculator.

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Technical of the product - MPL 11x11x1 / N38 - lamellar magnet

Specification / characteristics - MPL 11x11x1 / N38 - lamellar magnet

properties
properties values
Cat. no. 020116
GTIN/EAN 5906301811220
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 11 mm [±0,1 mm]
Width 11 mm [±0,1 mm]
Height 1 mm [±0,1 mm]
Weight 0.91 g
Magnetization Direction ↑ axial
Load capacity ~ ? 0.43 kg / 4.24 N
Magnetic Induction ~ ? 100.10 mT / 1001 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MPL 11x11x1 / 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 simulation of the product - data

The following information represent the direct effect of a engineering calculation. Values rely on algorithms for the class Nd2Fe14B. Actual performance may differ from theoretical values. Use these calculations as a supplementary guide during assembly planning.

Table 1: Static force (force vs gap) - characteristics
MPL 11x11x1 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 1001 Gs
100.1 mT
0.43 kg / 0.95 pounds
430.0 g / 4.2 N
safe
1 mm 925 Gs
92.5 mT
0.37 kg / 0.81 pounds
367.7 g / 3.6 N
safe
2 mm 800 Gs
80.0 mT
0.27 kg / 0.61 pounds
274.9 g / 2.7 N
safe
3 mm 659 Gs
65.9 mT
0.19 kg / 0.41 pounds
186.5 g / 1.8 N
safe
5 mm 415 Gs
41.5 mT
0.07 kg / 0.16 pounds
74.0 g / 0.7 N
safe
10 mm 130 Gs
13.0 mT
0.01 kg / 0.02 pounds
7.3 g / 0.1 N
safe
15 mm 51 Gs
5.1 mT
0.00 kg / 0.00 pounds
1.1 g / 0.0 N
safe
20 mm 24 Gs
2.4 mT
0.00 kg / 0.00 pounds
0.3 g / 0.0 N
safe
30 mm 8 Gs
0.8 mT
0.00 kg / 0.00 pounds
0.0 g / 0.0 N
safe
50 mm 2 Gs
0.2 mT
0.00 kg / 0.00 pounds
0.0 g / 0.0 N
safe

Table 2: Sliding capacity (wall)
MPL 11x11x1 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 0.09 kg / 0.19 pounds
86.0 g / 0.8 N
1 mm Stal (~0.2) 0.07 kg / 0.16 pounds
74.0 g / 0.7 N
2 mm Stal (~0.2) 0.05 kg / 0.12 pounds
54.0 g / 0.5 N
3 mm Stal (~0.2) 0.04 kg / 0.08 pounds
38.0 g / 0.4 N
5 mm Stal (~0.2) 0.01 kg / 0.03 pounds
14.0 g / 0.1 N
10 mm Stal (~0.2) 0.00 kg / 0.00 pounds
2.0 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: Vertical assembly (shearing) - behavior on slippery surfaces
MPL 11x11x1 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
0.13 kg / 0.28 pounds
129.0 g / 1.3 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
0.09 kg / 0.19 pounds
86.0 g / 0.8 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.04 kg / 0.09 pounds
43.0 g / 0.4 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
0.22 kg / 0.47 pounds
215.0 g / 2.1 N

Table 4: Steel thickness (substrate influence) - sheet metal selection
MPL 11x11x1 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
10%
0.04 kg / 0.09 pounds
43.0 g / 0.4 N
1 mm
25%
0.11 kg / 0.24 pounds
107.5 g / 1.1 N
2 mm
50%
0.22 kg / 0.47 pounds
215.0 g / 2.1 N
3 mm
75%
0.32 kg / 0.71 pounds
322.5 g / 3.2 N
5 mm
100%
0.43 kg / 0.95 pounds
430.0 g / 4.2 N
10 mm
100%
0.43 kg / 0.95 pounds
430.0 g / 4.2 N
11 mm
100%
0.43 kg / 0.95 pounds
430.0 g / 4.2 N
12 mm
100%
0.43 kg / 0.95 pounds
430.0 g / 4.2 N

Table 5: Thermal resistance (stability) - thermal limit
MPL 11x11x1 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 0.43 kg / 0.95 pounds
430.0 g / 4.2 N
OK
40 °C -2.2% 0.42 kg / 0.93 pounds
420.5 g / 4.1 N
OK
60 °C -4.4% 0.41 kg / 0.91 pounds
411.1 g / 4.0 N
80 °C -6.6% 0.40 kg / 0.89 pounds
401.6 g / 3.9 N
100 °C -28.8% 0.31 kg / 0.67 pounds
306.2 g / 3.0 N

Table 6: Two magnets (attraction) - forces in the system
MPL 11x11x1 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Lateral Force (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 0.75 kg / 1.65 pounds
1 925 Gs
0.11 kg / 0.25 pounds
112 g / 1.1 N
N/A
1 mm 0.70 kg / 1.55 pounds
1 943 Gs
0.11 kg / 0.23 pounds
106 g / 1.0 N
0.63 kg / 1.40 pounds
~0 Gs
2 mm 0.64 kg / 1.41 pounds
1 851 Gs
0.10 kg / 0.21 pounds
96 g / 0.9 N
0.58 kg / 1.27 pounds
~0 Gs
3 mm 0.56 kg / 1.24 pounds
1 734 Gs
0.08 kg / 0.19 pounds
84 g / 0.8 N
0.50 kg / 1.11 pounds
~0 Gs
5 mm 0.40 kg / 0.88 pounds
1 460 Gs
0.06 kg / 0.13 pounds
60 g / 0.6 N
0.36 kg / 0.79 pounds
~0 Gs
10 mm 0.13 kg / 0.28 pounds
831 Gs
0.02 kg / 0.04 pounds
19 g / 0.2 N
0.12 kg / 0.26 pounds
~0 Gs
20 mm 0.01 kg / 0.03 pounds
261 Gs
0.00 kg / 0.00 pounds
2 g / 0.0 N
0.01 kg / 0.03 pounds
~0 Gs
50 mm 0.00 kg / 0.00 pounds
26 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
16 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
10 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
7 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
5 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
4 Gs
0.00 kg / 0.00 pounds
0 g / 0.0 N
0.00 kg / 0.00 pounds
~0 Gs

Table 7: Safety (HSE) (implants) - precautionary measures
MPL 11x11x1 / N38

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

Table 8: Collisions (cracking risk) - collision effects
MPL 11x11x1 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 19.50 km/h
(5.42 m/s)
0.01 J
30 mm 19.63 km/h
(5.45 m/s)
0.01 J
50 mm 19.57 km/h
(5.44 m/s)
0.01 J
100 mm 19.65 km/h
(5.46 m/s)
0.01 J

Table 9: Surface protection spec
MPL 11x11x1 / 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 11x11x1 / N38

Parameter Value SI Unit / Description
Magnetic Flux 1 627 Mx 16.3 µWb
Pc Coefficient 0.13 Low (Flat)

Table 11: Submerged application
MPL 11x11x1 / N38

Environment Effective steel pull Effect
Air (land) 0.43 kg Standard
Water (riverbed) 0.49 kg
(+0.06 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. Wall mount (shear)

*Warning: On a vertical wall, the magnet retains only approx. 20-30% of its nominal pull.

2. Steel thickness impact

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

3. Thermal stability

*For N38 material, the critical limit is 80°C.

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

chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.13

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

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%

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: 020116-2026
Measurement Calculator

Pulling force


Magnetic Induction

Other products

Component MPL 11x11x1 / N38 features a low profile and professional pulling force, making it an ideal solution for building separators and machines. This magnetic block with a force of 4.24 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. Watch your fingers! Magnets with a force of 0.43 kg can pinch very hard and cause hematomas. Using a screwdriver risks destroying the coating and permanently cracking the magnet.
Plate magnets MPL 11x11x1 / N38 are the foundation for many industrial devices, such as magnetic separators and linear motors. Thanks to the flat surface and high force (approx. 0.43 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 11x11x1 / N38, we recommend utilizing two-component adhesives (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 11x11x1 / N38 model is magnetized axially (dimension 1 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 (11x11 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: 11 mm (length), 11 mm (width), and 1 mm (thickness). It is a magnetic block with dimensions 11x11x1 mm and a self-weight of 0.91 g, ready to work at temperatures up to 80°C. The protective [NiCuNi] coating secures the magnet against corrosion.

Strengths as well as weaknesses of Nd2Fe14B magnets.

Benefits

Apart from their strong power, neodymium magnets have these key benefits:
  • Their magnetic field remains stable, and after approximately 10 years it drops only by ~1% (theoretically),
  • Magnets effectively resist against demagnetization caused by foreign field sources,
  • Thanks to the glossy finish, the plating of Ni-Cu-Ni, gold, or silver-plated gives an aesthetic appearance,
  • The surface of neodymium magnets generates a concentrated magnetic field – this is a key feature,
  • Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and can work (depending on the shape) even at a temperature of 230°C or more...
  • Possibility of exact machining and adjusting to defined requirements,
  • Fundamental importance in modern industrial fields – they are commonly used in magnetic memories, drive modules, diagnostic systems, as well as other advanced devices.
  • Thanks to their power density, small magnets offer high operating force, occupying minimum space,

Limitations

Cons of neodymium magnets: weaknesses and usage proposals
  • At very strong impacts they can break, therefore we advise placing them in steel cases. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
  • Neodymium magnets lose their power under the influence of heating. As soon as 80°C is exceeded, many of them start losing their power. Therefore, we recommend our special magnets marked [AH], which maintain stability even at temperatures 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 resistant to moisture, when using outdoors
  • Limited possibility of making nuts in the magnet and complex forms - preferred is casing - mounting mechanism.
  • Possible danger to health – tiny shards of magnets can be dangerous, if swallowed, which becomes key in the context of child safety. Additionally, small elements of these magnets are able to be problematic in diagnostics medical when they are in 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

Magnetic strength at its maximum – what affects it?

The specified lifting capacity concerns the peak performance, measured under optimal environment, namely:
  • on a plate made of mild steel, effectively closing the magnetic field
  • with a thickness of at least 10 mm
  • with a plane perfectly flat
  • under conditions of ideal adhesion (metal-to-metal)
  • during detachment in a direction perpendicular to the mounting surface
  • at ambient temperature approx. 20 degrees Celsius

Impact of factors on magnetic holding capacity in practice

In real-world applications, the actual lifting capacity is determined by several key aspects, presented from crucial:
  • Clearance – the presence of foreign body (rust, tape, air) acts as an insulator, which reduces capacity rapidly (even by 50% at 0.5 mm).
  • Pull-off angle – note that the magnet holds strongest perpendicularly. Under sliding down, the holding force drops significantly, often to levels of 20-30% of the maximum value.
  • Base massiveness – too thin sheet does not accept the full field, causing part of the flux to be lost to the other side.
  • Material type – the best choice is high-permeability steel. Cast iron may attract less.
  • Base smoothness – the more even the plate, the larger the contact zone and stronger the hold. Roughness acts like micro-gaps.
  • Thermal factor – high temperature reduces pulling force. Exceeding the limit temperature can permanently demagnetize the magnet.

Lifting capacity testing was conducted on a smooth plate of optimal thickness, under perpendicular forces, in contrast under shearing force the load capacity is reduced by as much as fivefold. Moreover, even a minimal clearance between the magnet’s surface and the plate decreases the holding force.

Precautions when working with NdFeB magnets
Handling rules

Exercise caution. Neodymium magnets attract from a long distance and snap with huge force, often quicker than you can react.

Physical harm

Protect your hands. Two large magnets will snap together instantly with a force of several hundred kilograms, crushing anything in their path. Be careful!

Threat to electronics

Avoid bringing magnets close to a purse, laptop, or TV. The magnetic field can destroy these devices and erase data from cards.

Machining danger

Mechanical processing of neodymium magnets carries a risk of fire risk. Neodymium dust reacts violently with oxygen and is difficult to extinguish.

Allergic reactions

Certain individuals experience a hypersensitivity to Ni, which is the typical protective layer for neodymium magnets. Prolonged contact might lead to an allergic reaction. We strongly advise use safety gloves.

Swallowing risk

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

Warning for heart patients

Medical warning: Neodymium magnets can turn off pacemakers and defibrillators. Stay away if you have medical devices.

Eye protection

Beware of splinters. Magnets can fracture upon violent connection, ejecting sharp fragments into the air. We recommend safety glasses.

Heat warning

Keep cool. NdFeB magnets are susceptible to heat. If you need resistance above 80°C, ask us about special high-temperature series (H, SH, UH).

GPS and phone interference

Navigation devices and mobile phones are highly sensitive to magnetic fields. Close proximity with a powerful NdFeB magnet can decalibrate the sensors in your phone.

Warning! More info about risks in the article: Safety of working with magnets.