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MPL 11x11x1 / N38 - lamellar magnet

lamellar magnet

Catalog no 020116

GTIN/EAN: 5906301811220

5.00

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

0.873 with VAT / pcs + price for transport

0.710 ZŁ net + 23% VAT / pcs

bulk discounts:

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Technical details - 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
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 assembly - data

The following data are the result of a mathematical analysis. Values were calculated on algorithms for the class Nd2Fe14B. Real-world parameters might slightly deviate from the simulation results. Please consider these calculations as a preliminary roadmap during assembly planning.

Table 1: Static force (force vs gap) - interaction chart
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
weak grip
1 mm 925 Gs
92.5 mT
0.37 kg / 0.81 pounds
367.7 g / 3.6 N
weak grip
2 mm 800 Gs
80.0 mT
0.27 kg / 0.61 pounds
274.9 g / 2.7 N
weak grip
3 mm 659 Gs
65.9 mT
0.19 kg / 0.41 pounds
186.5 g / 1.8 N
weak grip
5 mm 415 Gs
41.5 mT
0.07 kg / 0.16 pounds
74.0 g / 0.7 N
weak grip
10 mm 130 Gs
13.0 mT
0.01 kg / 0.02 pounds
7.3 g / 0.1 N
weak grip
15 mm 51 Gs
5.1 mT
0.00 kg / 0.00 pounds
1.1 g / 0.0 N
weak grip
20 mm 24 Gs
2.4 mT
0.00 kg / 0.00 pounds
0.3 g / 0.0 N
weak grip
30 mm 8 Gs
0.8 mT
0.00 kg / 0.00 pounds
0.0 g / 0.0 N
weak grip
50 mm 2 Gs
0.2 mT
0.00 kg / 0.00 pounds
0.0 g / 0.0 N
weak grip

Table 2: Vertical load (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 (sliding) - vertical pull
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) - power losses
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: Working in heat (stability) - resistance threshold
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: Magnet-Magnet interaction (repulsion) - field range
MPL 11x11x1 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Sliding 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) (electronics) - warnings
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
Timepiece 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: Dynamics (cracking risk) - warning
MPL 11x11x1 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 22.15 km/h
(6.15 m/s)
0.02 J
30 mm 37.97 km/h
(10.55 m/s)
0.05 J
50 mm 49.02 km/h
(13.62 m/s)
0.08 J
100 mm 69.33 km/h
(19.26 m/s)
0.17 J

Table 9: Coating parameters (durability)
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: Construction 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: 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 only approx. 20-30% of its max power.

2. Steel saturation

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

3. Thermal stability

*For N38 grade, the safety 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.

Technical specification and ecology
Material specification
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: 020116-2026
Quick Unit Converter
Force (pull)

Field Strength

Other products

Model MPL 11x11x1 / N38 features a low profile and industrial 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. The durable anti-corrosion layer ensures a long lifespan in a dry environment, protecting the core from oxidation.
Separating block magnets requires a technique based on sliding (moving one relative to the other), rather than forceful pulling apart. To separate the MPL 11x11x1 / 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.
They constitute a key element in the production of wind 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 11x11x1 / N38, we recommend utilizing two-component adhesives (e.g., UHU Endfest, Distal), which ensure a durable bond with metal or plastic. Double-sided tape cushions vibrations, which is an advantage when mounting in moving elements. 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 and weaknesses of neodymium magnets.

Benefits

In addition to their long-term stability, neodymium magnets provide the following advantages:
  • They retain magnetic properties for around 10 years – the loss is just ~1% (according to analyses),
  • They are extremely resistant to demagnetization induced by presence of other magnetic fields,
  • By applying a smooth coating of silver, the element acquires an modern look,
  • They show high magnetic induction at the operating surface, which increases their power,
  • Due to their durability and thermal resistance, neodymium magnets can operate (depending on the form) even at high temperatures reaching 230°C or more...
  • Possibility of exact machining and adjusting to atypical applications,
  • Key role in future technologies – they are used in HDD drives, brushless drives, advanced medical instruments, as well as multitasking production systems.
  • Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in compact dimensions, which allows their use in miniature devices

Weaknesses

Disadvantages of neodymium magnets:
  • At very strong impacts they can crack, therefore we recommend placing them in strong housings. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
  • Neodymium magnets lose power when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of power (a factor is the shape and dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are very resistant to heat
  • Magnets exposed to a humid environment can corrode. Therefore while using outdoors, we suggest using water-impermeable magnets made of rubber, plastic or other material resistant to moisture
  • Limited ability of producing threads in the magnet and complicated forms - preferred is casing - mounting mechanism.
  • Potential hazard to health – tiny shards of magnets pose a threat, when accidentally swallowed, which becomes key in the aspect of protecting the youngest. Additionally, small components of these devices are able to disrupt the diagnostic process medical when they are in the body.
  • Due to neodymium price, their price exceeds standard values,

Holding force characteristics

Best holding force of the magnet in ideal parameterswhat contributes to it?

The lifting capacity listed is a measurement result executed under the following configuration:
  • with the use of a sheet made of low-carbon steel, guaranteeing full magnetic saturation
  • whose thickness equals approx. 10 mm
  • characterized by lack of roughness
  • without the slightest air gap between the magnet and steel
  • under perpendicular force direction (90-degree angle)
  • in neutral thermal conditions

Impact of factors on magnetic holding capacity in practice

Holding efficiency is affected by working environment parameters, such as (from priority):
  • Clearance – the presence of any layer (rust, dirt, gap) interrupts the magnetic circuit, which lowers power rapidly (even by 50% at 0.5 mm).
  • Loading method – declared lifting capacity refers to detachment vertically. When attempting to slide, the magnet holds significantly lower power (typically approx. 20-30% of nominal force).
  • Element thickness – for full efficiency, the steel must be adequately massive. Thin sheet limits the lifting capacity (the magnet "punches through" it).
  • Steel type – mild steel gives the best results. Alloy admixtures decrease magnetic permeability and holding force.
  • Plate texture – ground elements ensure maximum contact, which improves field saturation. Rough surfaces reduce efficiency.
  • Operating temperature – NdFeB sinters have a negative temperature coefficient. At higher temperatures they are weaker, and in frost they can be stronger (up to a certain limit).

Lifting capacity was assessed with the use of a steel plate with a smooth surface of optimal thickness (min. 20 mm), under vertically applied force, whereas under parallel forces the lifting capacity is smaller. Moreover, even a minimal clearance between the magnet and the plate decreases the load capacity.

Safety rules for work with neodymium magnets
Eye protection

Neodymium magnets are sintered ceramics, meaning they are prone to chipping. Collision of two magnets will cause them shattering into small pieces.

Magnetic media

Powerful magnetic fields can corrupt files on credit cards, HDDs, and storage devices. Maintain a gap of min. 10 cm.

Warning for allergy sufferers

Some people suffer from a contact allergy to Ni, which is the typical protective layer for NdFeB magnets. Prolonged contact may cause dermatitis. We suggest use protective gloves.

Handling guide

Before starting, read the rules. Uncontrolled attraction can break the magnet or injure your hand. Think ahead.

Demagnetization risk

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

Finger safety

Protect your hands. Two large magnets will join instantly with a force of massive weight, crushing anything in their path. Exercise extreme caution!

Adults only

Adult use only. Tiny parts pose a choking risk, causing severe trauma. Store out of reach of children and animals.

ICD Warning

Health Alert: Strong magnets can turn off pacemakers and defibrillators. Do not approach if you have electronic implants.

Precision electronics

Note: neodymium magnets generate a field that interferes with precision electronics. Keep a safe distance from your mobile, device, and navigation systems.

Combustion hazard

Machining of NdFeB material carries a risk of fire hazard. Magnetic powder reacts violently with oxygen and is difficult to extinguish.

Safety First! 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