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MPL 35x35x10 / N38 - lamellar magnet

lamellar magnet

Catalog no 020144

GTIN/EAN: 5906301811503

length

35 mm [±0,1 mm]

Width

35 mm [±0,1 mm]

Height

10 mm [±0,1 mm]

Weight

91.88 g

Magnetization Direction

↑ axial

Load capacity

26.88 kg / 263.71 N

Magnetic Induction

282.90 mT / 2829 Gs

Coating

[NiCuNi] Nickel

35.10 with VAT / pcs + price for transport

28.54 ZŁ net + 23% VAT / pcs

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Technical data - MPL 35x35x10 / N38 - lamellar magnet

Specification / characteristics - MPL 35x35x10 / N38 - lamellar magnet

properties
properties values
Cat. no. 020144
GTIN/EAN 5906301811503
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 35 mm [±0,1 mm]
Width 35 mm [±0,1 mm]
Height 10 mm [±0,1 mm]
Weight 91.88 g
Magnetization Direction ↑ axial
Load capacity ~ ? 26.88 kg / 263.71 N
Magnetic Induction ~ ? 282.90 mT / 2829 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MPL 35x35x10 / 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

Physical simulation of the magnet - report

The following information are the direct effect of a physical calculation. Values are based on models for the class Nd2Fe14B. Actual parameters might slightly differ from theoretical values. Treat these data as a preliminary roadmap during assembly planning.

Table 1: Static pull force (pull vs gap) - characteristics
MPL 35x35x10 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 2829 Gs
282.9 mT
26.88 kg / 59.26 pounds
26880.0 g / 263.7 N
critical level
1 mm 2727 Gs
272.7 mT
24.98 kg / 55.08 pounds
24982.7 g / 245.1 N
critical level
2 mm 2613 Gs
261.3 mT
22.94 kg / 50.57 pounds
22939.0 g / 225.0 N
critical level
3 mm 2491 Gs
249.1 mT
20.84 kg / 45.95 pounds
20841.0 g / 204.4 N
critical level
5 mm 2232 Gs
223.2 mT
16.73 kg / 36.88 pounds
16730.5 g / 164.1 N
critical level
10 mm 1600 Gs
160.0 mT
8.60 kg / 18.96 pounds
8600.7 g / 84.4 N
strong
15 mm 1102 Gs
110.2 mT
4.08 kg / 9.00 pounds
4082.9 g / 40.1 N
strong
20 mm 757 Gs
75.7 mT
1.93 kg / 4.25 pounds
1925.7 g / 18.9 N
weak grip
30 mm 376 Gs
37.6 mT
0.48 kg / 1.05 pounds
475.7 g / 4.7 N
weak grip
50 mm 122 Gs
12.2 mT
0.05 kg / 0.11 pounds
49.9 g / 0.5 N
weak grip

Table 2: Sliding hold (vertical surface)
MPL 35x35x10 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 5.38 kg / 11.85 pounds
5376.0 g / 52.7 N
1 mm Stal (~0.2) 5.00 kg / 11.01 pounds
4996.0 g / 49.0 N
2 mm Stal (~0.2) 4.59 kg / 10.11 pounds
4588.0 g / 45.0 N
3 mm Stal (~0.2) 4.17 kg / 9.19 pounds
4168.0 g / 40.9 N
5 mm Stal (~0.2) 3.35 kg / 7.38 pounds
3346.0 g / 32.8 N
10 mm Stal (~0.2) 1.72 kg / 3.79 pounds
1720.0 g / 16.9 N
15 mm Stal (~0.2) 0.82 kg / 1.80 pounds
816.0 g / 8.0 N
20 mm Stal (~0.2) 0.39 kg / 0.85 pounds
386.0 g / 3.8 N
30 mm Stal (~0.2) 0.10 kg / 0.21 pounds
96.0 g / 0.9 N
50 mm Stal (~0.2) 0.01 kg / 0.02 pounds
10.0 g / 0.1 N

Table 3: Wall mounting (sliding) - vertical pull
MPL 35x35x10 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
8.06 kg / 17.78 pounds
8064.0 g / 79.1 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
5.38 kg / 11.85 pounds
5376.0 g / 52.7 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
2.69 kg / 5.93 pounds
2688.0 g / 26.4 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
13.44 kg / 29.63 pounds
13440.0 g / 131.8 N

Table 4: Steel thickness (substrate influence) - power losses
MPL 35x35x10 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
5%
1.34 kg / 2.96 pounds
1344.0 g / 13.2 N
1 mm
13%
3.36 kg / 7.41 pounds
3360.0 g / 33.0 N
2 mm
25%
6.72 kg / 14.82 pounds
6720.0 g / 65.9 N
3 mm
38%
10.08 kg / 22.22 pounds
10080.0 g / 98.9 N
5 mm
63%
16.80 kg / 37.04 pounds
16800.0 g / 164.8 N
10 mm
100%
26.88 kg / 59.26 pounds
26880.0 g / 263.7 N
11 mm
100%
26.88 kg / 59.26 pounds
26880.0 g / 263.7 N
12 mm
100%
26.88 kg / 59.26 pounds
26880.0 g / 263.7 N

Table 5: Working in heat (material behavior) - resistance threshold
MPL 35x35x10 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 26.88 kg / 59.26 pounds
26880.0 g / 263.7 N
OK
40 °C -2.2% 26.29 kg / 57.96 pounds
26288.6 g / 257.9 N
OK
60 °C -4.4% 25.70 kg / 56.65 pounds
25697.3 g / 252.1 N
80 °C -6.6% 25.11 kg / 55.35 pounds
25105.9 g / 246.3 N
100 °C -28.8% 19.14 kg / 42.19 pounds
19138.6 g / 187.7 N

Table 6: Magnet-Magnet interaction (attraction) - field collision
MPL 35x35x10 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Shear Strength (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 60.43 kg / 133.22 pounds
4 428 Gs
9.06 kg / 19.98 pounds
9064 g / 88.9 N
N/A
1 mm 58.36 kg / 128.67 pounds
5 560 Gs
8.75 kg / 19.30 pounds
8754 g / 85.9 N
52.53 kg / 115.80 pounds
~0 Gs
2 mm 56.16 kg / 123.82 pounds
5 454 Gs
8.42 kg / 18.57 pounds
8424 g / 82.6 N
50.55 kg / 111.44 pounds
~0 Gs
3 mm 53.89 kg / 118.81 pounds
5 343 Gs
8.08 kg / 17.82 pounds
8084 g / 79.3 N
48.50 kg / 106.93 pounds
~0 Gs
5 mm 49.22 kg / 108.50 pounds
5 106 Gs
7.38 kg / 16.28 pounds
7382 g / 72.4 N
44.29 kg / 97.65 pounds
~0 Gs
10 mm 37.61 kg / 82.92 pounds
4 463 Gs
5.64 kg / 12.44 pounds
5642 g / 55.3 N
33.85 kg / 74.63 pounds
~0 Gs
20 mm 19.33 kg / 42.63 pounds
3 200 Gs
2.90 kg / 6.39 pounds
2900 g / 28.5 N
17.40 kg / 38.36 pounds
~0 Gs
50 mm 2.10 kg / 4.64 pounds
1 056 Gs
0.32 kg / 0.70 pounds
316 g / 3.1 N
1.89 kg / 4.18 pounds
~0 Gs
60 mm 1.07 kg / 2.36 pounds
753 Gs
0.16 kg / 0.35 pounds
160 g / 1.6 N
0.96 kg / 2.12 pounds
~0 Gs
70 mm 0.57 kg / 1.26 pounds
550 Gs
0.09 kg / 0.19 pounds
86 g / 0.8 N
0.51 kg / 1.13 pounds
~0 Gs
80 mm 0.32 kg / 0.70 pounds
411 Gs
0.05 kg / 0.11 pounds
48 g / 0.5 N
0.29 kg / 0.63 pounds
~0 Gs
90 mm 0.19 kg / 0.41 pounds
313 Gs
0.03 kg / 0.06 pounds
28 g / 0.3 N
0.17 kg / 0.37 pounds
~0 Gs
100 mm 0.11 kg / 0.25 pounds
244 Gs
0.02 kg / 0.04 pounds
17 g / 0.2 N
0.10 kg / 0.22 pounds
~0 Gs

Table 7: Hazards (electronics) - warnings
MPL 35x35x10 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 16.5 cm
Hearing aid 10 Gs (1.0 mT) 13.0 cm
Mechanical watch 20 Gs (2.0 mT) 10.0 cm
Mobile device 40 Gs (4.0 mT) 8.0 cm
Car key 50 Gs (5.0 mT) 7.5 cm
Payment card 400 Gs (40.0 mT) 3.0 cm
HDD hard drive 600 Gs (60.0 mT) 2.5 cm

Table 8: Impact energy (kinetic energy) - warning
MPL 35x35x10 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 20.41 km/h
(5.67 m/s)
1.48 J
30 mm 30.21 km/h
(8.39 m/s)
3.23 J
50 mm 38.62 km/h
(10.73 m/s)
5.29 J
100 mm 54.55 km/h
(15.15 m/s)
10.55 J

Table 9: Anti-corrosion coating durability
MPL 35x35x10 / 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 (Pc)
MPL 35x35x10 / N38

Parameter Value SI Unit / Description
Magnetic Flux 38 021 Mx 380.2 µWb
Pc Coefficient 0.35 Low (Flat)

Table 11: Submerged application
MPL 35x35x10 / N38

Environment Effective steel pull Effect
Air (land) 26.88 kg Standard
Water (riverbed) 30.78 kg
(+3.90 kg buoyancy gain)
+14.5%
Rust risk: 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 surface, the magnet retains merely ~20% of its perpendicular strength.

2. Steel thickness impact

*Thin metal sheet (e.g. computer case) drastically weakens 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) = 0.35

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
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: 020144-2026
Measurement Calculator
Magnet pull force

Field Strength

Other products

This product is an extremely strong magnet in the shape of a plate made of NdFeB material, which, with dimensions of 35x35x10 mm and a weight of 91.88 g, guarantees the highest quality connection. As a block magnet with high power (approx. 26.88 kg), this product is available immediately from our warehouse in Poland. The durable anti-corrosion layer ensures a long lifespan in a dry environment, protecting the core from oxidation.
Separating strong flat magnets requires a technique based on sliding (moving one relative to the other), rather than forceful pulling apart. Watch your fingers! Magnets with a force of 26.88 kg can pinch very hard and cause hematomas. Using a screwdriver risks destroying the coating and permanently cracking the magnet.
Plate magnets MPL 35x35x10 / 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. 26.88 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.
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).
The magnetic axis runs through the shortest dimension, which is typical for gripper magnets. Thanks to this, it works best when "sticking" to sheet metal or another magnet with a large surface area. This is the most popular configuration for block magnets used in separators and holders.
The presented product is a neodymium magnet with precisely defined parameters: 35 mm (length), 35 mm (width), and 10 mm (thickness). It is a magnetic block with dimensions 35x35x10 mm and a self-weight of 91.88 g, ready to work at temperatures up to 80°C. The product meets the standards for N38 grade magnets.

Pros and cons of Nd2Fe14B magnets.

Pros

Apart from their consistent magnetic energy, neodymium magnets have these key benefits:
  • They do not lose power, even over approximately ten years – the decrease in power is only ~1% (according to tests),
  • Neodymium magnets are characterized by highly resistant to demagnetization caused by external magnetic fields,
  • A magnet with a metallic silver surface looks better,
  • Magnetic induction on the top side of the magnet remains very high,
  • Due to their durability and thermal resistance, neodymium magnets are capable of operate (depending on the form) even at high temperatures reaching 230°C or more...
  • Thanks to the option of flexible forming and customization to unique projects, magnetic components can be manufactured in a variety of shapes and sizes, which expands the range of possible applications,
  • Key role in modern technologies – they serve a role in HDD drives, brushless drives, precision medical tools, and industrial machines.
  • Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in small dimensions, which makes them useful in miniature devices

Limitations

Characteristics of disadvantages of neodymium magnets and proposals for their use:
  • Susceptibility to cracking is one of their disadvantages. Upon intense impact they can fracture. We recommend keeping them in a strong case, which not only protects 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 power. Therefore, we recommend our special magnets marked [AH], which maintain durability 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
  • We suggest a housing - magnetic mechanism, due to difficulties in producing nuts inside the magnet and complex forms.
  • Possible danger to health – tiny shards of magnets pose a threat, if swallowed, which becomes key in the aspect of protecting the youngest. Furthermore, small elements of these devices can complicate diagnosis 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 increases costs of application in large quantities

Holding force characteristics

Magnetic strength at its maximum – what affects it?

Information about lifting capacity is the result of a measurement for ideal contact conditions, including:
  • with the use of a sheet made of low-carbon steel, guaranteeing maximum field concentration
  • with a cross-section of at least 10 mm
  • with an ground touching surface
  • with total lack of distance (without impurities)
  • under perpendicular force vector (90-degree angle)
  • in temp. approx. 20°C

Determinants of practical lifting force of a magnet

Real force is affected by specific conditions, mainly (from priority):
  • Space between magnet and steel – even a fraction of a millimeter of distance (caused e.g. by varnish or unevenness) significantly weakens the magnet efficiency, often by half at just 0.5 mm.
  • Force direction – declared lifting capacity refers to pulling vertically. When attempting to slide, the magnet holds much less (often approx. 20-30% of nominal force).
  • Plate thickness – insufficiently thick sheet does not accept the full field, causing part of the flux to be wasted to the other side.
  • Plate material – mild steel gives the best results. Higher carbon content reduce magnetic permeability and holding force.
  • Base smoothness – the more even the surface, the larger the contact zone and higher the lifting capacity. Roughness creates an air distance.
  • Temperature influence – high temperature weakens pulling force. Exceeding the limit temperature can permanently demagnetize the magnet.

Lifting capacity testing was performed on plates with a smooth surface of optimal thickness, under a perpendicular pulling force, whereas under parallel forces the load capacity is reduced by as much as fivefold. In addition, even a small distance between the magnet and the plate reduces the lifting capacity.

H&S for magnets
Metal Allergy

Studies show that the nickel plating (the usual finish) is a common allergen. For allergy sufferers, prevent direct skin contact or choose versions in plastic housing.

Fire warning

Powder created during cutting of magnets is self-igniting. Avoid drilling into magnets unless you are an expert.

GPS and phone interference

Navigation devices and mobile phones are extremely sensitive to magnetism. Direct contact with a strong magnet can ruin the internal compass in your phone.

Health Danger

People with a heart stimulator must keep an large gap from magnets. The magnetism can interfere with the operation of the life-saving device.

Safe operation

Handle magnets with awareness. Their powerful strength can shock even professionals. Be vigilant and do not underestimate their power.

Material brittleness

NdFeB magnets are ceramic materials, meaning they are fragile like glass. Impact of two magnets will cause them shattering into shards.

Safe distance

Very strong magnetic fields can erase data on credit cards, hard drives, and other magnetic media. Keep a distance of at least 10 cm.

Choking Hazard

Only for adults. Small elements pose a choking risk, causing intestinal necrosis. Store away from children and animals.

Power loss in heat

Keep cool. NdFeB magnets are sensitive to heat. If you require operation above 80°C, ask us about HT versions (H, SH, UH).

Bone fractures

Large magnets can smash fingers instantly. Under no circumstances place your hand between two strong magnets.

Caution! Details about hazards in the article: Magnet Safety Guide.
Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98