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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Technical - 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 |
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 |
|
0.40 kg / 0.89 pounds
403.0 g / 4.0 N
|
| 1 mm |
|
1.01 kg / 2.22 pounds
1007.5 g / 9.9 N
|
| 2 mm |
|
2.02 kg / 4.44 pounds
2015.0 g / 19.8 N
|
| 3 mm |
|
3.02 kg / 6.66 pounds
3022.5 g / 29.7 N
|
| 5 mm |
|
4.03 kg / 8.88 pounds
4030.0 g / 39.5 N
|
| 10 mm |
|
4.03 kg / 8.88 pounds
4030.0 g / 39.5 N
|
| 11 mm |
|
4.03 kg / 8.88 pounds
4030.0 g / 39.5 N
|
| 12 mm |
|
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% |
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.
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 |
Other deals
Advantages and disadvantages of Nd2Fe14B magnets.
Pros
- 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
- 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 parameters – what it depends on?
- 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
- 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.
