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MPL 13x10x5 / N35H - lamellar magnet

lamellar magnet

Catalog no 020119

GTIN/EAN: 5906301811251

5.00

length

13 mm [±0,1 mm]

Width

10 mm [±0,1 mm]

Height

5 mm [±0,1 mm]

Weight

4.88 g

Magnetization Direction

↑ axial

Load capacity

4.03 kg / 39.54 N

Magnetic Induction

369.32 mT / 3693 Gs

Coating

[NiCuNi] Nickel

2.58 with VAT / pcs + price for transport

2.10 ZŁ net + 23% VAT / pcs

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Product card - MPL 13x10x5 / N35H - lamellar magnet

Specification / characteristics - MPL 13x10x5 / N35H - lamellar magnet

properties
properties values
Cat. no. 020119
GTIN/EAN 5906301811251
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 13 mm [±0,1 mm]
Width 10 mm [±0,1 mm]
Height 5 mm [±0,1 mm]
Weight 4.88 g
Magnetization Direction ↑ axial
Load capacity ~ ? 4.03 kg / 39.54 N
Magnetic Induction ~ ? 369.32 mT / 3693 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N35H

Specification / characteristics MPL 13x10x5 / N35H - lamellar magnet
properties values units
remenance Br [min. - max.] ? 11.7-12.1 kGs
remenance Br [min. - max.] ? 1170-1210 mT
coercivity bHc ? 10.8-11.5 kOe
coercivity bHc ? 860-915 kA/m
actual internal force iHc ≥ 17 kOe
actual internal force iHc ≥ 1353 kA/m
energy density [min. - max.] ? 33-35 BH max MGOe
energy density [min. - max.] ? 263-279 BH max KJ/m
max. temperature ? ≤ 120 °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 simulation of the assembly - data

Presented values are the outcome of a physical analysis. Values are based on algorithms for the material Nd2Fe14B. Real-world performance might slightly differ from theoretical values. Treat these calculations as a supplementary guide for designers.

Table 1: Static force (force vs gap) - interaction chart
MPL 13x10x5 / N35H

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 3691 Gs
369.1 mT
4.03 kg / 8.88 LBS
4030.0 g / 39.5 N
strong
1 mm 3152 Gs
315.2 mT
2.94 kg / 6.48 LBS
2938.4 g / 28.8 N
strong
2 mm 2595 Gs
259.5 mT
1.99 kg / 4.39 LBS
1991.8 g / 19.5 N
low risk
3 mm 2089 Gs
208.9 mT
1.29 kg / 2.85 LBS
1291.2 g / 12.7 N
low risk
5 mm 1321 Gs
132.1 mT
0.52 kg / 1.14 LBS
516.1 g / 5.1 N
low risk
10 mm 455 Gs
45.5 mT
0.06 kg / 0.14 LBS
61.2 g / 0.6 N
low risk
15 mm 193 Gs
19.3 mT
0.01 kg / 0.02 LBS
11.1 g / 0.1 N
low risk
20 mm 97 Gs
9.7 mT
0.00 kg / 0.01 LBS
2.8 g / 0.0 N
low risk
30 mm 34 Gs
3.4 mT
0.00 kg / 0.00 LBS
0.3 g / 0.0 N
low risk
50 mm 8 Gs
0.8 mT
0.00 kg / 0.00 LBS
0.0 g / 0.0 N
low risk

Table 2: Sliding force (vertical surface)
MPL 13x10x5 / N35H

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 0.81 kg / 1.78 LBS
806.0 g / 7.9 N
1 mm Stal (~0.2) 0.59 kg / 1.30 LBS
588.0 g / 5.8 N
2 mm Stal (~0.2) 0.40 kg / 0.88 LBS
398.0 g / 3.9 N
3 mm Stal (~0.2) 0.26 kg / 0.57 LBS
258.0 g / 2.5 N
5 mm Stal (~0.2) 0.10 kg / 0.23 LBS
104.0 g / 1.0 N
10 mm Stal (~0.2) 0.01 kg / 0.03 LBS
12.0 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: Wall mounting (shearing) - vertical pull
MPL 13x10x5 / N35H

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
1.21 kg / 2.67 LBS
1209.0 g / 11.9 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
0.81 kg / 1.78 LBS
806.0 g / 7.9 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.40 kg / 0.89 LBS
403.0 g / 4.0 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
2.02 kg / 4.44 LBS
2015.0 g / 19.8 N

Table 4: Steel thickness (substrate influence) - sheet metal selection
MPL 13x10x5 / N35H

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
10%
0.40 kg / 0.89 LBS
403.0 g / 4.0 N
1 mm
25%
1.01 kg / 2.22 LBS
1007.5 g / 9.9 N
2 mm
50%
2.02 kg / 4.44 LBS
2015.0 g / 19.8 N
3 mm
75%
3.02 kg / 6.66 LBS
3022.5 g / 29.7 N
5 mm
100%
4.03 kg / 8.88 LBS
4030.0 g / 39.5 N
10 mm
100%
4.03 kg / 8.88 LBS
4030.0 g / 39.5 N
11 mm
100%
4.03 kg / 8.88 LBS
4030.0 g / 39.5 N
12 mm
100%
4.03 kg / 8.88 LBS
4030.0 g / 39.5 N

Table 5: Thermal stability (stability) - resistance threshold
MPL 13x10x5 / N35H

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 4.03 kg / 8.88 LBS
4030.0 g / 39.5 N
OK
80 °C -6.6% 3.76 kg / 8.30 LBS
3764.0 g / 36.9 N
120 °C -11.0% 3.59 kg / 7.91 LBS
3586.7 g / 35.2 N
140 °C -33.2% 2.69 kg / 5.93 LBS
2692.0 g / 26.4 N

Table 6: Magnet-Magnet interaction (attraction) - field collision
MPL 13x10x5 / N35H

Gap (mm) Attraction (kg/lbs) (N-S) Sliding Force (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 10.92 kg / 24.08 LBS
5 009 Gs
1.64 kg / 3.61 LBS
1638 g / 16.1 N
N/A
1 mm 9.43 kg / 20.80 LBS
6 862 Gs
1.42 kg / 3.12 LBS
1415 g / 13.9 N
8.49 kg / 18.72 LBS
~0 Gs
2 mm 7.96 kg / 17.55 LBS
6 304 Gs
1.19 kg / 2.63 LBS
1194 g / 11.7 N
7.17 kg / 15.80 LBS
~0 Gs
3 mm 6.60 kg / 14.56 LBS
5 740 Gs
0.99 kg / 2.18 LBS
990 g / 9.7 N
5.94 kg / 13.10 LBS
~0 Gs
5 mm 4.36 kg / 9.62 LBS
4 667 Gs
0.65 kg / 1.44 LBS
655 g / 6.4 N
3.93 kg / 8.66 LBS
~0 Gs
10 mm 1.40 kg / 3.08 LBS
2 642 Gs
0.21 kg / 0.46 LBS
210 g / 2.1 N
1.26 kg / 2.78 LBS
~0 Gs
20 mm 0.17 kg / 0.37 LBS
910 Gs
0.02 kg / 0.05 LBS
25 g / 0.2 N
0.15 kg / 0.33 LBS
~0 Gs
50 mm 0.00 kg / 0.01 LBS
110 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
68 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
45 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
31 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
22 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
17 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 13x10x5 / N35H

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 6.0 cm
Hearing aid 10 Gs (1.0 mT) 5.0 cm
Mechanical watch 20 Gs (2.0 mT) 4.0 cm
Mobile device 40 Gs (4.0 mT) 3.0 cm
Car key 50 Gs (5.0 mT) 3.0 cm
Payment card 400 Gs (40.0 mT) 1.5 cm
HDD hard drive 600 Gs (60.0 mT) 1.0 cm

Table 8: Impact energy (kinetic energy) - collision effects
MPL 13x10x5 / N35H

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 29.26 km/h
(8.13 m/s)
0.16 J
30 mm 50.20 km/h
(13.94 m/s)
0.47 J
50 mm 64.81 km/h
(18.00 m/s)
0.79 J
100 mm 91.65 km/h
(25.46 m/s)
1.58 J

Table 9: Anti-corrosion coating durability
MPL 13x10x5 / N35H

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 13x10x5 / N35H

Parameter Value SI Unit / Description
Magnetic Flux 4 919 Mx 49.2 µWb
Pc Coefficient 0.49 Low (Flat)

Table 11: Physics of underwater searching
MPL 13x10x5 / N35H

Environment Effective steel pull Effect
Air (land) 4.03 kg Standard
Water (riverbed) 4.61 kg
(+0.58 kg buoyancy gain)
+14.5%
Rust risk: This magnet has a standard nickel coating. After use in water, it must be dried and maintained immediately, otherwise it will rust!
1. Sliding resistance

*Warning: On a vertical surface, the magnet retains merely approx. 20-30% of its max power.

2. Plate thickness effect

*Thin steel (e.g. computer case) significantly weakens the holding force.

3. Power loss vs temp

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

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

chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.49

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
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: 020119-2026
Quick Unit Converter
Pulling force

Magnetic Induction

View more proposals

This product is a very powerful plate magnet made of NdFeB material, which, with dimensions of 13x10x5 mm and a weight of 4.88 g, guarantees the highest quality connection. As a block magnet with high power (approx. 4.03 kg), this product is available off-the-shelf from our warehouse in Poland. Additionally, its Ni-Cu-Ni coating secures 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. Watch your fingers! Magnets with a force of 4.03 kg can pinch very hard and cause hematomas. 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 generators and material handling systems. They work great as fasteners under tiles, wood, or glass. 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. 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).
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. 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: 13 mm (length), 10 mm (width), and 5 mm (thickness). The key parameter here is the holding force amounting to approximately 4.03 kg (force ~39.54 N), which, with such a flat shape, proves the high grade of the material. The product meets the standards for N38 grade magnets.

Pros as well as cons of rare earth magnets.

Advantages

Apart from their superior magnetism, neodymium magnets have these key benefits:
  • They retain magnetic properties for nearly ten years – the loss is just ~1% (according to analyses),
  • They have excellent resistance to magnetic field loss due to opposing magnetic fields,
  • By using a decorative layer of gold, the element presents an proper look,
  • Magnetic induction on the surface of the magnet turns out to be extremely intense,
  • Through (appropriate) combination of ingredients, they can achieve high thermal strength, enabling action at temperatures approaching 230°C and above...
  • Possibility of exact creating as well as optimizing to precise needs,
  • Key role in electronics industry – they serve a role in hard drives, electric drive systems, precision medical tools, and technologically advanced constructions.
  • Thanks to concentrated force, small magnets offer high operating force, occupying minimum space,

Cons

Disadvantages of NdFeB magnets:
  • They are prone to damage upon heavy impacts. To avoid cracks, it is worth securing magnets in a protective case. Such protection not only protects the magnet but also improves its resistance to damage
  • When exposed to high temperature, neodymium magnets experience 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
  • Magnets exposed to a humid environment can rust. Therefore while using outdoors, we suggest using waterproof magnets made of rubber, plastic or other material protecting against moisture
  • Limited ability of making nuts in the magnet and complicated forms - preferred is a housing - mounting mechanism.
  • Possible danger resulting from small fragments of magnets are risky, in case of ingestion, which is particularly important in the context of child safety. Additionally, small elements of these devices are able to be problematic in diagnostics medical when they are in the body.
  • Due to neodymium price, their price exceeds standard values,

Lifting parameters

Maximum holding power of the magnet – what affects it?

Magnet power is the result of a measurement for ideal contact conditions, including:
  • on a plate made of structural steel, optimally conducting the magnetic flux
  • whose transverse dimension reaches at least 10 mm
  • characterized by smoothness
  • without any clearance between the magnet and steel
  • during pulling in a direction vertical to the mounting surface
  • at ambient temperature approx. 20 degrees Celsius

Determinants of lifting force in real conditions

It is worth knowing that the magnet holding will differ subject to the following factors, starting with the most relevant:
  • Air gap (between the magnet and the plate), as even a microscopic clearance (e.g. 0.5 mm) can cause a decrease in lifting capacity by up to 50% (this also applies to paint, rust or dirt).
  • Force direction – remember that the magnet has greatest strength perpendicularly. Under shear forces, the capacity drops significantly, often to levels of 20-30% of the maximum value.
  • Metal thickness – the thinner the sheet, the weaker the hold. Part of the magnetic field penetrates through instead of generating force.
  • Material type – ideal substrate is pure iron steel. Stainless steels may generate lower lifting capacity.
  • Surface finish – ideal contact is possible only on polished steel. Any scratches and bumps create air cushions, reducing force.
  • Temperature influence – hot environment reduces magnetic field. Exceeding the limit temperature can permanently demagnetize the magnet.

Holding force was tested on the plate surface of 20 mm thickness, when a perpendicular force was applied, whereas under attempts to slide the magnet the lifting capacity is smaller. In addition, even a minimal clearance between the magnet’s surface and the plate decreases the load capacity.

Warnings
Precision electronics

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

Protective goggles

Watch out for shards. Magnets can fracture upon violent connection, ejecting shards into the air. We recommend safety glasses.

Allergic reactions

Nickel alert: The nickel-copper-nickel coating consists of nickel. If redness happens, cease handling magnets and wear gloves.

Keep away from children

Adult use only. Small elements pose a choking risk, leading to severe trauma. Keep out of reach of children and animals.

Danger to pacemakers

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

Dust explosion hazard

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

Physical harm

Pinching hazard: The pulling power is so immense that it can cause hematomas, pinching, and broken bones. Protective gloves are recommended.

Threat to electronics

Do not bring magnets close to a purse, computer, or TV. The magnetism can destroy these devices and wipe information from cards.

Powerful field

Handle magnets consciously. Their powerful strength can shock even professionals. Be vigilant and respect their power.

Maximum temperature

Regular neodymium magnets (grade N) lose magnetization when the temperature exceeds 80°C. This process is irreversible.

Danger! Want to know more? Read our article: Why are neodymium magnets dangerous?