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MPL 40x20x10 / N38 - lamellar magnet

Name: Dhit sp. z o.o.
Address: Kościuszki 6A, Ożarów Mazowiecki, Poland, 05-850, PL
Telephone: +48 22 499 98 98
Price range: PLN 1-6500
Rating: 5

lamellar magnet

Catalog no 020158

GTIN/EAN: 5906301811640

length

40 mm [±0,1 mm]

Width

20 mm [±0,1 mm]

Height

10 mm [±0,1 mm]

Weight

60 g

Magnetization Direction

↑ axial

Load capacity

24.62 kg / 241.53 N

Magnetic Induction

349.60 mT / 3496 Gs

Coating

[NiCuNi] Nickel

check properties »

31.00 ZŁ with VAT / pcs + price for transport

25.20 ZŁ net + 23% VAT / pcs

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Technical data of the product - MPL 40x20x10 / N38 - lamellar magnet

Specification / characteristics - MPL 40x20x10 / N38 - lamellar magnet

properties

properties	values
Cat. no.	020158
GTIN/EAN	5906301811640
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	40 mm [±0,1 mm]
Width	20 mm [±0,1 mm]
Height	10 mm [±0,1 mm]
Weight	60 g
Magnetization Direction	↑ axial
Load capacity ~ ?	24.62 kg / 241.53 N
Magnetic Induction ~ ?	349.60 mT / 3496 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MPL 40x20x10 / N38 - lamellar magnet

properties	values	units
remenance Br [min. - max.] ?	12.2-12.6	kGs
remenance Br [min. - max.] ?	1220-1260	mT
coercivity bHc ?	10.8-11.5	kOe
coercivity bHc ?	860-915	kA/m
actual internal force iHc	≥ 12	kOe
actual internal force iHc	≥ 955	kA/m
energy density [min. - max.] ?	36-38	BH max MGOe
energy density [min. - max.] ?	287-303	BH max KJ/m
max. temperature ?	≤ 80	°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

Physical modeling of the assembly - technical parameters

These values represent the direct effect of a mathematical analysis. Results are based on models for the class Nd₂Fe₁₄B. Real-world parameters might slightly deviate from the simulation results. Please consider these calculations as a supplementary guide when designing systems.

Table 1: Static pull force (force vs gap) - interaction chart
MPL 40x20x10 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	3495 Gs 349.5 mT	24.62 kg / 54.28 LBS 24620.0 g / 241.5 N	dangerous!
1 mm	3272 Gs 327.2 mT	21.58 kg / 47.57 LBS 21578.0 g / 211.7 N	dangerous!
2 mm	3035 Gs 303.5 mT	18.56 kg / 40.92 LBS 18559.3 g / 182.1 N	dangerous!
3 mm	2794 Gs 279.4 mT	15.73 kg / 34.69 LBS 15733.0 g / 154.3 N	dangerous!
5 mm	2332 Gs 233.2 mT	10.96 kg / 24.16 LBS 10959.2 g / 107.5 N	dangerous!
10 mm	1433 Gs 143.3 mT	4.14 kg / 9.12 LBS 4136.4 g / 40.6 N	warning
15 mm	891 Gs 89.1 mT	1.60 kg / 3.52 LBS 1598.7 g / 15.7 N	safe
20 mm	574 Gs 57.4 mT	0.66 kg / 1.46 LBS 664.0 g / 6.5 N	safe
30 mm	267 Gs 26.7 mT	0.14 kg / 0.32 LBS 143.7 g / 1.4 N	safe
50 mm	82 Gs 8.2 mT	0.01 kg / 0.03 LBS 13.7 g / 0.1 N	safe

Magnetic force drops significantly with every mm of gap. Keep in mind that every additional insulation layer (e.g., dirt, paint, veneer) strongly weakens the grip. Neodymiums work most effectively during direct contact; air break nullifies the power. Observe how rapidly the parameters drop, when the magnet does not touch tightly to the metal substrate. When designing the mounting, discard redundant distances.

Table 2: Shear hold (wall)
MPL 40x20x10 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	4.92 kg / 10.86 LBS 4924.0 g / 48.3 N
1 mm	Stal (~0.2)	4.32 kg / 9.52 LBS 4316.0 g / 42.3 N
2 mm	Stal (~0.2)	3.71 kg / 8.18 LBS 3712.0 g / 36.4 N
3 mm	Stal (~0.2)	3.15 kg / 6.94 LBS 3146.0 g / 30.9 N
5 mm	Stal (~0.2)	2.19 kg / 4.83 LBS 2192.0 g / 21.5 N
10 mm	Stal (~0.2)	0.83 kg / 1.83 LBS 828.0 g / 8.1 N
15 mm	Stal (~0.2)	0.32 kg / 0.71 LBS 320.0 g / 3.1 N
20 mm	Stal (~0.2)	0.13 kg / 0.29 LBS 132.0 g / 1.3 N
30 mm	Stal (~0.2)	0.03 kg / 0.06 LBS 28.0 g / 0.3 N
50 mm	Stal (~0.2)	0.00 kg / 0.00 LBS 2.0 g / 0.0 N

The table below presents the theoretical shear load sufficient to cause the shifting of the magnet down against a vertical steel plate (assuming standard friction coefficient). This parameter is relative to the separation distance between the magnet and the metal.

Table 3: Wall mounting (shearing) - vertical pull
MPL 40x20x10 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	7.39 kg / 16.28 LBS 7386.0 g / 72.5 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	4.92 kg / 10.86 LBS 4924.0 g / 48.3 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	2.46 kg / 5.43 LBS 2462.0 g / 24.2 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	12.31 kg / 27.14 LBS 12310.0 g / 120.8 N

When hanging a element on a upright wall (e.g., a car body), it will maintain barely approx. 20%-30% of its nominal power. Gravitational force and a low friction coefficient cause that products slide down easier than they pull off. Want to create a hanger? Consider that the sliding force is significantly lower than the perpendicular breakaway force. On a painted metal, the magnet will slip down under a noticeably lighter cargo. Using a rubber pad can significantly raise the stability.

Table 4: Material efficiency (substrate influence) - sheet metal selection
MPL 40x20x10 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	5%	1.23 kg / 2.71 LBS 1231.0 g / 12.1 N
1 mm	13%	3.08 kg / 6.78 LBS 3077.5 g / 30.2 N
2 mm	25%	6.16 kg / 13.57 LBS 6155.0 g / 60.4 N
3 mm	38%	9.23 kg / 20.35 LBS 9232.5 g / 90.6 N
5 mm	63%	15.39 kg / 33.92 LBS 15387.5 g / 151.0 N
10 mm	100%	24.62 kg / 54.28 LBS 24620.0 g / 241.5 N
11 mm	100%	24.62 kg / 54.28 LBS 24620.0 g / 241.5 N
12 mm	100%	24.62 kg / 54.28 LBS 24620.0 g / 241.5 N

A thin metal plate is incapable of take in the full magnetic flux, which wastes potential of the holder. If you mount a strong magnet to a weak sheet, the magnetism will pass right through and the pull force will drop sharply. To utilize full efficiency of this neodymium's power, you need a suitably thick element of metal. The saturation phenomenon causes that on thin elements (e.g., thin profiles), the product shows lower pull force. We suggest choosing the steel dimension according to the table below.

Table 5: Thermal resistance (stability) - resistance threshold
MPL 40x20x10 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	24.62 kg / 54.28 LBS 24620.0 g / 241.5 N	OK
40 °C	-2.2%	24.08 kg / 53.08 LBS 24078.4 g / 236.2 N	OK
60 °C	-4.4%	23.54 kg / 51.89 LBS 23536.7 g / 230.9 N
80 °C	-6.6%	23.00 kg / 50.70 LBS 22995.1 g / 225.6 N
100 °C	-28.8%	17.53 kg / 38.65 LBS 17529.4 g / 172.0 N

Classic neodymiums change their properties parameters after exceeding the maximum temperature. Watch out for overheating – high temperature can permanently demagnetize this magnet. With every degree above norm, the neodymium's force briefly drops. Do not use this magnet near heat sources higher than its working range. Too high temperature will result in destruction of magnetic properties.

*Engineering note: Thermal stability depends not only on the material grade, but also on the magnet's shape. Flat magnets (pancake types) may lose charge permanently under lower heat stress compared to rod magnets. Red status in the table signals a risk of irreversible loss for this particular item.

Table 6: Two magnets (attraction) - forces in the system
MPL 40x20x10 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Strength (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	60.25 kg / 132.83 LBS 4 926 Gs	9.04 kg / 19.93 LBS 9038 g / 88.7 N	N/A
1 mm	56.58 kg / 124.73 LBS 6 774 Gs	8.49 kg / 18.71 LBS 8487 g / 83.3 N	50.92 kg / 112.26 LBS ~0 Gs
2 mm	52.81 kg / 116.42 LBS 6 544 Gs	7.92 kg / 17.46 LBS 7921 g / 77.7 N	47.53 kg / 104.78 LBS ~0 Gs
3 mm	49.07 kg / 108.19 LBS 6 309 Gs	7.36 kg / 16.23 LBS 7361 g / 72.2 N	44.17 kg / 97.37 LBS ~0 Gs
5 mm	41.89 kg / 92.34 LBS 5 828 Gs	6.28 kg / 13.85 LBS 6283 g / 61.6 N	37.70 kg / 83.11 LBS ~0 Gs
10 mm	26.82 kg / 59.13 LBS 4 664 Gs	4.02 kg / 8.87 LBS 4023 g / 39.5 N	24.14 kg / 53.22 LBS ~0 Gs
20 mm	10.12 kg / 22.32 LBS 2 865 Gs	1.52 kg / 3.35 LBS 1518 g / 14.9 N	9.11 kg / 20.09 LBS ~0 Gs
50 mm	0.73 kg / 1.61 LBS 769 Gs	0.11 kg / 0.24 LBS 109 g / 1.1 N	0.66 kg / 1.45 LBS ~0 Gs
60 mm	0.35 kg / 0.78 LBS 534 Gs	0.05 kg / 0.12 LBS 53 g / 0.5 N	0.32 kg / 0.70 LBS ~0 Gs
70 mm	0.18 kg / 0.40 LBS 383 Gs	0.03 kg / 0.06 LBS 27 g / 0.3 N	0.16 kg / 0.36 LBS ~0 Gs
80 mm	0.10 kg / 0.22 LBS 282 Gs	0.01 kg / 0.03 LBS 15 g / 0.1 N	0.09 kg / 0.20 LBS ~0 Gs
90 mm	0.06 kg / 0.12 LBS 214 Gs	0.01 kg / 0.02 LBS 8 g / 0.1 N	0.05 kg / 0.11 LBS ~0 Gs
100 mm	0.03 kg / 0.07 LBS 165 Gs	0.01 kg / 0.01 LBS 5 g / 0.0 N	0.03 kg / 0.07 LBS ~0 Gs

Two magnetic products interact from a much further distance than a magnet and sheet setup. Such a system of magnet-to-magnet creates a more powerful interaction and a wider radius of performance. Want to build a strong closure? Use a pair of magnets instead of one magnet and a striker plate. Remember that when connecting a pair of magnets, the impact force is massive. The levitation is marginally weaker than the connection force, but still significant.
*The magnetic induction in repulsion mode is approximately ~0 Gs in the exact middle of the gap (due to field cancellation).
Important: Estimates refer to friction force of dual matching neodymium magnets (friction ~0.15 for Ni-Ni plating).

Table 7: Hazards (implants) - warnings
MPL 40x20x10 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	14.5 cm
Hearing aid	10 Gs (1.0 mT)	11.5 cm
Mechanical watch	20 Gs (2.0 mT)	9.0 cm
Mobile device	40 Gs (4.0 mT)	7.0 cm
Car key	50 Gs (5.0 mT)	6.5 cm
Payment card	400 Gs (40.0 mT)	2.5 cm
HDD hard drive	600 Gs (60.0 mT)	2.0 cm

Extremely neodym field poses a serious hazard to electronics and pacemakers. These magnets produce a field that destroys function of digital equipment. Remember: the unseen radiation passes through tissues and glass. Special caution must be exercised by people with cochlear implants and drug dispensers. Influence will be felt by: automatic timepieces, car keys, membranes, and displays. Avoid contact with magnetic cards, hard drives, or sensitive navigation tools.

Table 8: Collisions (kinetic energy) - collision effects
MPL 40x20x10 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	22.47 km/h (6.24 m/s)	1.17 J
30 mm	35.51 km/h (9.86 m/s)	2.92 J
50 mm	45.70 km/h (12.69 m/s)	4.83 J
100 mm	64.60 km/h (17.95 m/s)	9.66 J

Magnetic elements are very brittle – a collision with steel can result in shattering. Watch the impact speed – a magnet released freely turns into a projectile. Striking energy can destroy the magnet or painful pinches to skin. Be sure to control the product during installation so it doesn't hit violently against the steel surface. A collision at high speed means shattering of the magnet. Wear safety glasses when playing with powerful specimens.

Table 9: Surface protection spec
MPL 40x20x10 / N38

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)

The following table defines the conditions under which this product can be safely used. Improper coating selection is the most common cause of magnet failure over time.

Table 10: Electrical data (Flux)
MPL 40x20x10 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	28 125 Mx	281.2 µWb
P_c Coefficient	0.42	Low (Flat)

Total magnetic flux emitted by the pole surface. Essential parameter in coil applications and motors. P_c value determines the working geometry.

Table 11: Submerged application
MPL 40x20x10 / N38

Environment	Effective steel pull	Effect
Air (land)	24.62 kg	Standard
Water (riverbed)	28.19 kg (+3.57 kg buoyancy gain)	+14.5%

Warning: This magnet has a standard nickel coating. After use in water, it must be dried and maintained immediately, otherwise it will rust!

Water displaces steel, making heavy objects slightly lighter. Buoyancy helps in lifting finds.

1. Wall mount (shear)

*Warning: On a vertical surface, the magnet holds merely ~20% of its max power.

2. Plate thickness effect

*Thin metal sheet (e.g. 0.5mm PC case) significantly weakens the holding force.

3. Temperature resistance

*For standard magnets, the safety limit is 80°C.

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 0.42

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 P_c (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 P_c 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.

Engineering data and GPSR

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%

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: 020158-2026

Measurement Calculator

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This product is a very powerful plate magnet made of NdFeB material, which, with dimensions of 40x20x10 mm and a weight of 60 g, guarantees premium class connection. This magnetic block with a force of 241.53 N is ready for shipment in 24h, allowing for rapid realization of your project. The durable anti-corrosion layer ensures a long lifespan in a dry environment, protecting the core from oxidation.

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. Watch your fingers! Magnets with a force of 24.62 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.

Plate magnets MPL 40x20x10 / N38 are the foundation for many industrial devices, such as filters catching filings and linear motors. They work great as invisible mounts under tiles, wood, or glass. Customers often choose this model for hanging tools on strips and for advanced DIY and modeling projects, where precision and power count.

For mounting flat magnets MPL 40x20x10 / N38, we recommend utilizing two-component adhesives (e.g., UHU Endfest, Distal), which ensure a durable bond with metal or plastic. For lighter applications or mounting on smooth surfaces, branded foam tape (e.g., 3M VHB) will work, provided the surface is perfectly degreased. Avoid chemically aggressive glues or hot glue, which can demagnetize neodymium (above 80°C).

Standardly, the MPL 40x20x10 / N38 model is magnetized axially (dimension 10 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. Such a pole arrangement ensures maximum holding capacity when pressing against the sheet, creating a closed magnetic circuit.

This model is characterized by dimensions 40x20x10 mm, which, at a weight of 60 g, makes it an element with impressive energy density. It is a magnetic block with dimensions 40x20x10 mm and a self-weight of 60 g, ready to work at temperatures up to 80°C. The product meets the standards for N38 grade magnets.

Pros and cons of rare earth magnets.

Advantages

Besides their exceptional pulling force, neodymium magnets offer the following advantages:

They retain magnetic properties for around 10 years – the loss is just ~1% (based on simulations),
Neodymium magnets are distinguished by remarkably resistant to magnetic field loss caused by external field sources,
By using a smooth layer of gold, the element acquires an proper look,
Magnets have huge magnetic induction on the working surface,
Thanks to resistance to high temperature, they can operate (depending on the shape) even at temperatures up to 230°C and higher...
Thanks to flexibility in shaping and the capacity to adapt to unusual requirements,
Fundamental importance in modern industrial fields – they are used in HDD drives, electric motors, precision medical tools, as well as technologically advanced constructions.
Thanks to efficiency per cm³, small magnets offer high operating force, with minimal size,

Weaknesses

Disadvantages of NdFeB magnets:

Brittleness is one of their disadvantages. Upon strong impact they can fracture. We recommend keeping them in a special holder, which not only secures them against impacts but also raises their durability
We warn that neodymium magnets can reduce their strength at high temperatures. To prevent this, we advise our specialized [AH] magnets, which work effectively even at 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 resistant to moisture
Due to limitations in creating nuts and complicated shapes in magnets, we recommend using a housing - magnetic mechanism.
Potential hazard related to microscopic parts of magnets pose a threat, in case of ingestion, which becomes key in the context of child safety. Furthermore, small elements of these devices can disrupt the diagnostic process medical after entering the body.
Due to complex production process, their price is higher than average,

Holding force characteristics

Best holding force of the magnet in ideal parameters – what contributes to it?

Magnet power was defined for optimal configuration, including:

with the use of a yoke made of special test steel, ensuring full magnetic saturation
with a cross-section minimum 10 mm
with an ideally smooth contact surface
under conditions of gap-free contact (metal-to-metal)
for force applied at a right angle (in the magnet axis)
at temperature approx. 20 degrees Celsius

Lifting capacity in practice – influencing factors

In real-world applications, the actual lifting capacity depends on many variables, listed from the most important:

Distance – the presence of foreign body (rust, tape, gap) acts as an insulator, which lowers capacity steeply (even by 50% at 0.5 mm).
Direction of force – maximum parameter is obtained only during perpendicular pulling. The resistance to sliding of the magnet along the plate is usually many times lower (approx. 1/5 of the lifting capacity).
Element thickness – for full efficiency, the steel must be adequately massive. Thin sheet restricts the lifting capacity (the magnet "punches through" it).
Material composition – different alloys reacts the same. High carbon content weaken the interaction with the magnet.
Plate texture – ground elements ensure maximum contact, which improves field saturation. Rough surfaces reduce efficiency.
Thermal environment – heating the magnet causes a temporary drop of force. It is worth remembering the thermal limit for a given model.

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. Additionally, even a small distance between the magnet’s surface and the plate reduces the lifting capacity.

Precautions when working with neodymium magnets

Implant safety

People with a pacemaker should keep an absolute distance from magnets. The magnetism can stop the functioning of the life-saving device.

Adults only

Absolutely keep magnets out of reach of children. Choking hazard is high, and the consequences of magnets clamping inside the body are very dangerous.

Fire risk

Machining of NdFeB material carries a risk of fire hazard. Neodymium dust oxidizes rapidly with oxygen and is hard to extinguish.

Magnets are brittle

NdFeB magnets are ceramic materials, which means they are very brittle. Collision of two magnets will cause them cracking into shards.

Do not underestimate power

Use magnets consciously. Their immense force can surprise even experienced users. Plan your moves and respect their power.

Thermal limits

Avoid heat. Neodymium magnets are sensitive to heat. If you require resistance above 80°C, look for special high-temperature series (H, SH, UH).

Impact on smartphones

Note: rare earth magnets generate a field that interferes with sensitive sensors. Maintain a safe distance from your mobile, device, and navigation systems.

Warning for allergy sufferers

It is widely known that the nickel plating (standard magnet coating) is a potent allergen. If you have an allergy, prevent direct skin contact or select encased magnets.

Bone fractures

Protect your hands. Two powerful magnets will join immediately with a force of massive weight, crushing anything in their path. Exercise extreme caution!

Threat to electronics

Intense magnetic fields can destroy records on credit cards, hard drives, and other magnetic media. Stay away of min. 10 cm.

Caution! Learn more about risks in the article: Safety of working with magnets.

MPL 40x20x10 / N38 - lamellar magnet

Technical data of the product - MPL 40x20x10 / N38 - lamellar magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical modeling of the assembly - technical parameters

Table 1: Static pull force (force vs gap) - interaction chart MPL 40x20x10 / N38

Table 2: Shear hold (wall) MPL 40x20x10 / N38

Table 3: Wall mounting (shearing) - vertical pull MPL 40x20x10 / N38

Table 4: Material efficiency (substrate influence) - sheet metal selection MPL 40x20x10 / N38

Table 5: Thermal resistance (stability) - resistance threshold MPL 40x20x10 / N38

Table 6: Two magnets (attraction) - forces in the system MPL 40x20x10 / N38

Table 7: Hazards (implants) - warnings MPL 40x20x10 / N38

Table 8: Collisions (kinetic energy) - collision effects MPL 40x20x10 / N38

Table 9: Surface protection spec MPL 40x20x10 / N38

Table 10: Electrical data (Flux) MPL 40x20x10 / N38

Table 11: Submerged application MPL 40x20x10 / N38

1. Wall mount (shear)

2. Plate thickness effect

3. Temperature resistance

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

Elemental analysis

Ecology and recycling (GPSR)

Force (pull)

Field Strength

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Pros and cons of rare earth magnets.

Advantages

Weaknesses

Holding force characteristics

Best holding force of the magnet in ideal parameters – what contributes to it?

Lifting capacity in practice – influencing factors

Precautions when working with neodymium magnets

Implant safety

Adults only

Fire risk

Magnets are brittle

Do not underestimate power

Thermal limits

Impact on smartphones

Warning for allergy sufferers

Bone fractures

Threat to electronics

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (force vs gap) - interaction chart
MPL 40x20x10 / N38

Table 2: Shear hold (wall)
MPL 40x20x10 / N38

Table 3: Wall mounting (shearing) - vertical pull
MPL 40x20x10 / N38

Table 4: Material efficiency (substrate influence) - sheet metal selection
MPL 40x20x10 / N38

Table 5: Thermal resistance (stability) - resistance threshold
MPL 40x20x10 / N38

Table 6: Two magnets (attraction) - forces in the system
MPL 40x20x10 / N38

Table 7: Hazards (implants) - warnings
MPL 40x20x10 / N38

Table 8: Collisions (kinetic energy) - collision effects
MPL 40x20x10 / N38

Table 9: Surface protection spec
MPL 40x20x10 / N38

Table 10: Electrical data (Flux)
MPL 40x20x10 / N38

Table 11: Submerged application
MPL 40x20x10 / N38