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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

bulk discounts:

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Technical - 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

Technical modeling of the assembly - data

These data constitute the direct effect of a mathematical analysis. Values rely on models for the class Nd2Fe14B. Real-world performance might slightly differ. Use these calculations as a reference point for designers.

Table 1: Static pull force (pull vs gap) - characteristics
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 pounds
4030.0 g / 39.5 N
warning
1 mm 3152 Gs
315.2 mT
2.94 kg / 6.48 pounds
2938.4 g / 28.8 N
warning
2 mm 2595 Gs
259.5 mT
1.99 kg / 4.39 pounds
1991.8 g / 19.5 N
weak grip
3 mm 2089 Gs
208.9 mT
1.29 kg / 2.85 pounds
1291.2 g / 12.7 N
weak grip
5 mm 1321 Gs
132.1 mT
0.52 kg / 1.14 pounds
516.1 g / 5.1 N
weak grip
10 mm 455 Gs
45.5 mT
0.06 kg / 0.14 pounds
61.2 g / 0.6 N
weak grip
15 mm 193 Gs
19.3 mT
0.01 kg / 0.02 pounds
11.1 g / 0.1 N
weak grip
20 mm 97 Gs
9.7 mT
0.00 kg / 0.01 pounds
2.8 g / 0.0 N
weak grip
30 mm 34 Gs
3.4 mT
0.00 kg / 0.00 pounds
0.3 g / 0.0 N
weak grip
50 mm 8 Gs
0.8 mT
0.00 kg / 0.00 pounds
0.0 g / 0.0 N
weak grip

Table 2: Sliding capacity (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 pounds
806.0 g / 7.9 N
1 mm Stal (~0.2) 0.59 kg / 1.30 pounds
588.0 g / 5.8 N
2 mm Stal (~0.2) 0.40 kg / 0.88 pounds
398.0 g / 3.9 N
3 mm Stal (~0.2) 0.26 kg / 0.57 pounds
258.0 g / 2.5 N
5 mm Stal (~0.2) 0.10 kg / 0.23 pounds
104.0 g / 1.0 N
10 mm Stal (~0.2) 0.01 kg / 0.03 pounds
12.0 g / 0.1 N
15 mm Stal (~0.2) 0.00 kg / 0.00 pounds
2.0 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 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 pounds
1209.0 g / 11.9 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
0.81 kg / 1.78 pounds
806.0 g / 7.9 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.40 kg / 0.89 pounds
403.0 g / 4.0 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
2.02 kg / 4.44 pounds
2015.0 g / 19.8 N

Table 4: Material efficiency (saturation) - 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 pounds
403.0 g / 4.0 N
1 mm
25%
1.01 kg / 2.22 pounds
1007.5 g / 9.9 N
2 mm
50%
2.02 kg / 4.44 pounds
2015.0 g / 19.8 N
3 mm
75%
3.02 kg / 6.66 pounds
3022.5 g / 29.7 N
5 mm
100%
4.03 kg / 8.88 pounds
4030.0 g / 39.5 N
10 mm
100%
4.03 kg / 8.88 pounds
4030.0 g / 39.5 N
11 mm
100%
4.03 kg / 8.88 pounds
4030.0 g / 39.5 N
12 mm
100%
4.03 kg / 8.88 pounds
4030.0 g / 39.5 N

Table 5: Thermal resistance (material behavior) - power drop
MPL 13x10x5 / N35H

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

Table 6: Two magnets (repulsion) - field collision
MPL 13x10x5 / N35H

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

*Note: On a vertical surface, the magnet retains only ~20% of its max power.

2. Plate thickness effect

*Thin steel (e.g. computer case) drastically reduces the holding force.

3. Temperature resistance

*For N38 grade, the critical 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
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: 020119-2026
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Model MPL 13x10x5 / N35H features a flat shape and professional pulling force, making it a perfect solution for building separators and machines. This magnetic block with a force of 39.54 N is ready for shipment in 24h, allowing for rapid realization of your project. Additionally, its Ni-Cu-Ni coating secures it against corrosion in standard operating conditions, giving it an aesthetic appearance.
The key to success is shifting 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 13x10x5 / N35H 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.
Plate magnets MPL 13x10x5 / N35H are the foundation for many industrial devices, such as magnetic separators and linear motors. Thanks to the flat surface and high force (approx. 4.03 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. 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 13x10x5 / N35H model is magnetized through the thickness (dimension 5 mm), which means that the N and S poles are located on its largest, flat surfaces. 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: 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.

Advantages and disadvantages of Nd2Fe14B magnets.

Pros

In addition to their magnetic efficiency, neodymium magnets provide the following advantages:
  • They do not lose power, even after around ten years – the reduction in strength is only ~1% (theoretically),
  • They show high resistance to demagnetization induced by external field influence,
  • Thanks to the smooth finish, the layer of Ni-Cu-Ni, gold-plated, or silver-plated gives an aesthetic appearance,
  • Magnetic induction on the top side of the magnet is extremely intense,
  • Through (appropriate) combination of ingredients, they can achieve high thermal strength, allowing for operation at temperatures reaching 230°C and above...
  • Possibility of accurate machining and optimizing to complex requirements,
  • Fundamental importance in innovative solutions – they find application in HDD drives, electric motors, diagnostic systems, as well as industrial machines.
  • Thanks to efficiency per cm³, small magnets offer high operating force, in miniature format,

Cons

Disadvantages of NdFeB magnets:
  • Susceptibility to cracking is one of their disadvantages. Upon intense impact they can break. We advise keeping them in a strong case, which not only protects them against impacts but also increases their durability
  • 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 corrode. Therefore when using outdoors, we recommend using waterproof magnets made of rubber, plastic or other material protecting against moisture
  • We suggest casing - magnetic holder, due to difficulties in realizing nuts inside the magnet and complicated shapes.
  • Health risk to health – tiny shards of magnets pose a threat, if swallowed, which is particularly important in the context of child health protection. Additionally, small components of these products 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

Best holding force of the magnet in ideal parameterswhat it depends on?

The declared magnet strength represents the limit force, measured under ideal test conditions, meaning:
  • using a plate made of mild steel, functioning as a circuit closing element
  • with a thickness no less than 10 mm
  • characterized by lack of roughness
  • under conditions of no distance (surface-to-surface)
  • for force applied at a right angle (pull-off, not shear)
  • at temperature approx. 20 degrees Celsius

Key elements affecting lifting force

In real-world applications, the actual holding force depends on a number of factors, presented from crucial:
  • Clearance – existence of any layer (paint, tape, gap) acts as an insulator, which reduces power rapidly (even by 50% at 0.5 mm).
  • Force direction – remember that the magnet has greatest strength perpendicularly. Under sliding down, the holding force drops significantly, often to levels of 20-30% of the maximum value.
  • Substrate thickness – for full efficiency, the steel must be sufficiently thick. Paper-thin metal limits the lifting capacity (the magnet "punches through" it).
  • Steel type – mild steel attracts best. Alloy admixtures decrease magnetic properties and lifting capacity.
  • Plate texture – ground elements ensure maximum contact, which improves force. Uneven metal reduce efficiency.
  • Temperature – temperature increase results in weakening of force. Check the maximum operating temperature for a given model.

Holding force was tested on the plate surface of 20 mm thickness, when a perpendicular force was applied, in contrast under shearing force the lifting capacity is smaller. Additionally, even a small distance between the magnet and the plate lowers the holding force.

Warnings
Keep away from electronics

An intense magnetic field disrupts the functioning of magnetometers in phones and GPS navigation. Do not bring magnets close to a device to avoid breaking the sensors.

Avoid contact if allergic

A percentage of the population have a hypersensitivity to nickel, which is the typical protective layer for NdFeB magnets. Prolonged contact may cause skin redness. We strongly advise use safety gloves.

Crushing risk

Large magnets can break fingers instantly. Never place your hand between two strong magnets.

Caution required

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

Product not for children

Always keep magnets away from children. Ingestion danger is significant, and the effects of magnets clamping inside the body are very dangerous.

Machining danger

Fire hazard: Neodymium dust is explosive. Avoid machining magnets in home conditions as this risks ignition.

Medical interference

Patients with a pacemaker should maintain an absolute distance from magnets. The magnetic field can stop the functioning of the life-saving device.

Protect data

Very strong magnetic fields can destroy records on payment cards, HDDs, and other magnetic media. Stay away of min. 10 cm.

Operating temperature

Keep cool. NdFeB magnets are susceptible to temperature. If you need operation above 80°C, look for HT versions (H, SH, UH).

Fragile material

Neodymium magnets are sintered ceramics, which means they are very brittle. Clashing of two magnets will cause them cracking into shards.

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

e-mail: bok@dhit.pl

tel: +48 888 99 98 98