MPL 13x10x5 / N35H - lamellar magnet
lamellar magnet
Catalog no 020119
GTIN/EAN: 5906301811251
- 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
- Coating
- [NiCuNi] Nickel
How we measure these parameters — certificates and measurements
2.10 zł net / pcs
2.58 zł with VAT (23% VAT) / pcs
bulk discounts:
Need more?Frequently asked questions
How much will a block magnet really hold?
What is the maximum working temperature?
What safety factor should I allow?
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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Technical of the product - MPL 13x10x5 / N35H - lamellar magnet
Specification / characteristics - MPL 13x10x5 / N35H - lamellar magnet
| properties | values |
|---|---|
| Cat. no. | 020119 |
| GTIN/EAN | 5906301811251 |
| Production/Distribution | Dhit sp. z o.o. |
| 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
| 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
| 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 modeling of the magnet - technical parameters
Presented information are the outcome of a mathematical analysis. Results are based on algorithms for the material Nd2Fe14B. Actual performance may deviate from the simulation results. Treat these calculations as a supplementary guide when designing systems.
Table 1: Static pull 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
|
warning |
| 1 mm |
3152 Gs
315.2 mT
|
2.94 kg / 6.48 lbs
2938.4 g / 28.8 N
|
warning |
| 2 mm |
2595 Gs
259.5 mT
|
1.99 kg / 4.39 lbs
1991.8 g / 19.5 N
|
weak grip |
| 3 mm |
2089 Gs
208.9 mT
|
1.29 kg / 2.85 lbs
1291.2 g / 12.7 N
|
weak grip |
| 5 mm |
1321 Gs
132.1 mT
|
0.52 kg / 1.14 lbs
516.1 g / 5.1 N
|
weak grip |
| 10 mm |
455 Gs
45.5 mT
|
0.06 kg / 0.14 lbs
61.2 g / 0.6 N
|
weak grip |
| 15 mm |
193 Gs
19.3 mT
|
0.01 kg / 0.02 lbs
11.1 g / 0.1 N
|
weak grip |
| 20 mm |
97 Gs
9.7 mT
|
0.00 kg / 0.01 lbs
2.8 g / 0.0 N
|
weak grip |
| 30 mm |
34 Gs
3.4 mT
|
0.00 kg / 0.00 lbs
0.3 g / 0.0 N
|
weak grip |
| 50 mm |
8 Gs
0.8 mT
|
0.00 kg / 0.00 lbs
0.0 g / 0.0 N
|
weak grip |
Table 2: Slippage load (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) - behavior on slippery surfaces
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 (saturation) - power losses
MPL 13x10x5 / N35H
| Steel thickness (mm) | % power | Real pull force (kg/lbs/g/N) |
|---|---|---|
| 0.5 mm |
|
0.40 kg / 0.89 lbs
403.0 g / 4.0 N
|
| 1 mm |
|
1.01 kg / 2.22 lbs
1007.5 g / 9.9 N
|
| 2 mm |
|
2.02 kg / 4.44 lbs
2015.0 g / 19.8 N
|
| 3 mm |
|
3.02 kg / 6.66 lbs
3022.5 g / 29.7 N
|
| 5 mm |
|
4.03 kg / 8.88 lbs
4030.0 g / 39.5 N
|
| 10 mm |
|
4.03 kg / 8.88 lbs
4030.0 g / 39.5 N
|
| 11 mm |
|
4.03 kg / 8.88 lbs
4030.0 g / 39.5 N
|
| 12 mm |
|
4.03 kg / 8.88 lbs
4030.0 g / 39.5 N
|
Table 5: Thermal resistance (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 (repulsion) - field collision
MPL 13x10x5 / N35H
| Gap (mm) | Attraction (kg/lbs) (N-S) | Lateral 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: Hazards (implants) - warnings
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 |
| Timepiece | 20 Gs (2.0 mT) | 4.0 cm |
| Phone / Smartphone | 40 Gs (4.0 mT) | 3.0 cm |
| Remote | 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) - warning
MPL 13x10x5 / N35H
| Start from (mm) | Speed (km/h) | Energy (J) | Predicted outcome |
|---|---|---|---|
| 10 mm |
23.15 km/h
(6.43 m/s)
|
0.10 J | |
| 30 mm |
23.36 km/h
(6.49 m/s)
|
0.10 J | |
| 50 mm |
23.36 km/h
(6.49 m/s)
|
0.10 J | |
| 100 mm |
23.36 km/h
(6.49 m/s)
|
0.10 J |
Table 9: Coating parameters (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: 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: Underwater work (magnet fishing)
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% |
1. Sliding resistance
*Warning: On a vertical wall, the magnet holds just ~20% of its nominal pull.
2. Plate thickness effect
*Thin metal sheet (e.g. computer case) severely reduces the holding force.
3. Heat tolerance
*For N38 material, the max working temp is 80°C.
4. Demagnetization curve and operating point (B-H)
chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.49
This simulation demonstrates the magnetic stability of the selected magnet under specific geometric conditions. 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.
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% |
Environmental data
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
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Pros and cons of neodymium magnets.
Advantages
- They have unchanged lifting capacity, and over nearly 10 years their performance decreases symbolically – ~1% (in testing),
- They maintain their magnetic properties even under strong external field,
- A magnet with a shiny nickel surface is more attractive,
- Magnetic induction on the surface of the magnet is extremely intense,
- Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their form) at temperatures up to 230°C and above...
- Due to the ability of accurate forming and adaptation to custom solutions, NdFeB magnets can be produced in a broad palette of forms and dimensions, which increases their versatility,
- Universal use in modern technologies – they are utilized in magnetic memories, electric drive systems, medical equipment, and industrial machines.
- Thanks to concentrated force, small magnets offer high operating force, with minimal size,
Disadvantages
- Susceptibility to cracking is one of their disadvantages. Upon strong impact they can fracture. We advise keeping them in a strong case, which not only secures them against impacts but also raises their durability
- Neodymium magnets decrease their power under the influence of heating. As soon as 80°C is exceeded, many of them start losing their force. 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 suggest using waterproof magnets made of rubber, plastic or other material resistant to moisture, when using outdoors
- We suggest cover - magnetic mount, due to difficulties in creating nuts inside the magnet and complicated forms.
- Potential hazard related to microscopic parts of magnets can be dangerous, when accidentally swallowed, which gains importance in the context of child health protection. It is also worth noting that tiny parts of these products can be problematic in diagnostics medical in case of swallowing.
- Due to neodymium price, their price is relatively high,
Pull force analysis
Optimal lifting capacity of a neodymium magnet – what it depends on?
- on a block made of structural steel, optimally conducting the magnetic field
- whose thickness reaches at least 10 mm
- with a plane perfectly flat
- with zero gap (no coatings)
- during detachment in a direction vertical to the plane
- in temp. approx. 20°C
Practical lifting capacity: influencing factors
- Gap between magnet and steel – every millimeter of separation (caused e.g. by varnish or dirt) drastically reduces the magnet efficiency, often by half at just 0.5 mm.
- Direction of force – highest force is reached only during perpendicular pulling. The force required to slide of the magnet along the surface is typically many times lower (approx. 1/5 of the lifting capacity).
- Substrate thickness – to utilize 100% power, the steel must be sufficiently thick. Thin sheet restricts the lifting capacity (the magnet "punches through" it).
- Steel grade – the best choice is pure iron steel. Cast iron may have worse magnetic properties.
- Surface finish – full contact is possible only on polished steel. Any scratches and bumps create air cushions, weakening the magnet.
- Thermal factor – hot environment weakens magnetic field. Exceeding the limit temperature can permanently damage the magnet.
Lifting capacity testing was performed on a smooth plate of suitable thickness, under perpendicular forces, whereas under parallel forces the lifting capacity is smaller. In addition, even a slight gap between the magnet and the plate lowers the lifting capacity.
H&S for magnets
Compass and GPS
Remember: neodymium magnets generate a field that disrupts sensitive sensors. Maintain a separation from your phone, tablet, and navigation systems.
Adults only
These products are not intended for children. Accidental ingestion of several magnets can lead to them connecting inside the digestive tract, which poses a severe health hazard and requires urgent medical intervention.
Electronic devices
Avoid bringing magnets close to a purse, computer, or screen. The magnetism can permanently damage these devices and erase data from cards.
Beware of splinters
NdFeB magnets are ceramic materials, meaning they are very brittle. Impact of two magnets leads to them breaking into small pieces.
Dust explosion hazard
Fire hazard: Rare earth powder is highly flammable. Do not process magnets without safety gear as this may cause fire.
Handling guide
Use magnets consciously. Their powerful strength can shock even experienced users. Stay alert and do not underestimate their force.
Heat warning
Regular neodymium magnets (N-type) undergo demagnetization when the temperature surpasses 80°C. The loss of strength is permanent.
Allergy Warning
Some people experience a sensitization to Ni, which is the typical protective layer for neodymium magnets. Extended handling might lead to a rash. We recommend wear safety gloves.
Physical harm
Risk of injury: The attraction force is so immense that it can cause blood blisters, pinching, and even bone fractures. Protective gloves are recommended.
Danger to pacemakers
Warning for patients: Strong magnetic fields disrupt electronics. Keep minimum 30 cm distance or ask another person to handle the magnets.
