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
Load capacity
4.03 kg / 39.54 N
Magnetic Induction
369.32 mT / 3693 Gs
Coating
[NiCuNi] Nickel
2.58 ZŁ with VAT / pcs + price for transport
2.10 ZŁ net + 23% VAT / pcs
bulk discounts:
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Product card - 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 | 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 |
|
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 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% |
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.
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 |
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Pros as well as cons of rare earth magnets.
Advantages
- 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
- 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?
- 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
- 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.
