Product available Ships tomorrow

MPL 20x8x4 / 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 020133

GTIN/EAN: 5906301811398

5.00

length

20 mm [±0,1 mm]

Width

8 mm [±0,1 mm]

Height

4 mm [±0,1 mm]

Weight

4.8 g

Magnetization Direction

↑ axial

Load capacity

4.79 kg / 46.98 N

Magnetic Induction

336.99 mT / 3370 Gs

Coating

[NiCuNi] Nickel

check parameters »

3.67 ZŁ with VAT / pcs + price for transport

2.98 ZŁ net + 23% VAT / pcs

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Technical parameters of the product - MPL 20x8x4 / N38 - lamellar magnet

Specification / characteristics - MPL 20x8x4 / N38 - lamellar magnet

properties

properties	values
Cat. no.	020133
GTIN/EAN	5906301811398
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	20 mm [±0,1 mm]
Width	8 mm [±0,1 mm]
Height	4 mm [±0,1 mm]
Weight	4.8 g
Magnetization Direction	↑ axial
Load capacity ~ ?	4.79 kg / 46.98 N
Magnetic Induction ~ ?	336.99 mT / 3370 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MPL 20x8x4 / 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 magnet - data

The following information represent the outcome of a mathematical simulation. Results are based on models for the material Nd₂Fe₁₄B. Real-world performance may differ. Use these calculations as a reference point when designing systems.

Table 1: Static force (pull vs distance) - interaction chart
MPL 20x8x4 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	3368 Gs 336.8 mT	4.79 kg / 10.56 LBS 4790.0 g / 47.0 N	medium risk
1 mm	2818 Gs 281.8 mT	3.35 kg / 7.39 LBS 3352.3 g / 32.9 N	medium risk
2 mm	2266 Gs 226.6 mT	2.17 kg / 4.78 LBS 2167.6 g / 21.3 N	medium risk
3 mm	1794 Gs 179.4 mT	1.36 kg / 3.00 LBS 1358.6 g / 13.3 N	low risk
5 mm	1130 Gs 113.0 mT	0.54 kg / 1.19 LBS 538.9 g / 5.3 N	low risk
10 mm	416 Gs 41.6 mT	0.07 kg / 0.16 LBS 73.0 g / 0.7 N	low risk
15 mm	187 Gs 18.7 mT	0.01 kg / 0.03 LBS 14.7 g / 0.1 N	low risk
20 mm	97 Gs 9.7 mT	0.00 kg / 0.01 LBS 4.0 g / 0.0 N	low risk
30 mm	35 Gs 3.5 mT	0.00 kg / 0.00 LBS 0.5 g / 0.0 N	low risk
50 mm	9 Gs 0.9 mT	0.00 kg / 0.00 LBS 0.0 g / 0.0 N	low risk

Grip strength decreases drastically per each millimeter of distance. Keep in mind that every additional insulation layer (e.g., contamination, varnish, dust) significantly diminishes the holding power. Neodymiums hold strongest during direct contact; air break weakens the force. Notice how quickly the pull force drop, when the product does not touch flatly to the steel surface. When planning the assembly, eliminate unnecessary gaps.

Table 2: Shear capacity (vertical surface)
MPL 20x8x4 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	0.96 kg / 2.11 LBS 958.0 g / 9.4 N
1 mm	Stal (~0.2)	0.67 kg / 1.48 LBS 670.0 g / 6.6 N
2 mm	Stal (~0.2)	0.43 kg / 0.96 LBS 434.0 g / 4.3 N
3 mm	Stal (~0.2)	0.27 kg / 0.60 LBS 272.0 g / 2.7 N
5 mm	Stal (~0.2)	0.11 kg / 0.24 LBS 108.0 g / 1.1 N
10 mm	Stal (~0.2)	0.01 kg / 0.03 LBS 14.0 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

The table below indicates the estimated holding capacity sufficient to initiate the downward movement of the magnet downwards along a upright steel wall (considering typical friction). This parameter is a function of the gap size between the magnet and the metal.

Table 3: Wall mounting (sliding) - behavior on slippery surfaces
MPL 20x8x4 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	1.44 kg / 3.17 LBS 1437.0 g / 14.1 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.96 kg / 2.11 LBS 958.0 g / 9.4 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.48 kg / 1.06 LBS 479.0 g / 4.7 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	2.40 kg / 5.28 LBS 2395.0 g / 23.5 N

When mounting a holder on a vertical plane (e.g., a fridge), it you can count on barely about 1/5 of its maximum pull force. Gravitational force and a weak degree of grip influence the fact that magnets slip faster than they detach. Designing a vertical fastening? Consider that the sliding force is noticeably lower than the maximum static pull force. On a slippery surface, the holder will slide down under a much lighter cargo. Using a rubber pad can effectively increase the grip.

Table 4: Material efficiency (saturation) - power losses
MPL 20x8x4 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.48 kg / 1.06 LBS 479.0 g / 4.7 N
1 mm	25%	1.20 kg / 2.64 LBS 1197.5 g / 11.7 N
2 mm	50%	2.40 kg / 5.28 LBS 2395.0 g / 23.5 N
3 mm	75%	3.59 kg / 7.92 LBS 3592.5 g / 35.2 N
5 mm	100%	4.79 kg / 10.56 LBS 4790.0 g / 47.0 N
10 mm	100%	4.79 kg / 10.56 LBS 4790.0 g / 47.0 N
11 mm	100%	4.79 kg / 10.56 LBS 4790.0 g / 47.0 N
12 mm	100%	4.79 kg / 10.56 LBS 4790.0 g / 47.0 N

A thin sheet cannot absorb the full magnetic flux, which squanders power of the magnet. If you install a neodymium to a too thin substrate, the flux will penetrate right through and the holding will be smaller. To achieve full efficiency of this neodymium's power, you need a suitably thick piece of metal. The saturation phenomenon causes that on sheet metal structures (e.g., appliance housings), the product works worse. We recommend selecting the steel dimension according to the table below.

Table 5: Working in heat (stability) - resistance threshold
MPL 20x8x4 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	4.79 kg / 10.56 LBS 4790.0 g / 47.0 N	OK
40 °C	-2.2%	4.68 kg / 10.33 LBS 4684.6 g / 46.0 N	OK
60 °C	-4.4%	4.58 kg / 10.10 LBS 4579.2 g / 44.9 N
80 °C	-6.6%	4.47 kg / 9.86 LBS 4473.9 g / 43.9 N
100 °C	-28.8%	3.41 kg / 7.52 LBS 3410.5 g / 33.5 N

Ordinary NdFeB products irreversibly lose strength after exceeding the maximum temperature. Avoid high temperatures – high temperature can permanently demagnetize this product. With increasing heat, the magnet's force briefly lowers. Refrain from using this product close to ovens exceeding its working range. Exceeding the critical threshold will cause irreversible degradation of magnetic properties.

*Important note: Thermal stability depends not only on the material grade, but also on the magnet's shape. Flat magnets (pancake types) are more susceptible to demagnetization sooner compared to rod magnets. Warning indicator in the table signals a risk of irreversible loss for this specific geometry.

Table 6: Magnet-Magnet interaction (repulsion) - field range
MPL 20x8x4 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Strength (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	11.19 kg / 24.67 LBS 4 784 Gs	1.68 kg / 3.70 LBS 1678 g / 16.5 N	N/A
1 mm	9.49 kg / 20.93 LBS 6 205 Gs	1.42 kg / 3.14 LBS 1424 g / 14.0 N	8.54 kg / 18.84 LBS ~0 Gs
2 mm	7.83 kg / 17.26 LBS 5 635 Gs	1.17 kg / 2.59 LBS 1175 g / 11.5 N	7.05 kg / 15.54 LBS ~0 Gs
3 mm	6.34 kg / 13.97 LBS 5 069 Gs	0.95 kg / 2.10 LBS 951 g / 9.3 N	5.70 kg / 12.57 LBS ~0 Gs
5 mm	4.02 kg / 8.85 LBS 4 035 Gs	0.60 kg / 1.33 LBS 602 g / 5.9 N	3.61 kg / 7.97 LBS ~0 Gs
10 mm	1.26 kg / 2.78 LBS 2 259 Gs	0.19 kg / 0.42 LBS 189 g / 1.9 N	1.13 kg / 2.50 LBS ~0 Gs
20 mm	0.17 kg / 0.38 LBS 832 Gs	0.03 kg / 0.06 LBS 26 g / 0.3 N	0.15 kg / 0.34 LBS ~0 Gs
50 mm	0.00 kg / 0.01 LBS 112 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 70 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 46 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 32 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 23 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

Two magnets attract each other from a much further distance than a magnet and steel combination. The setup of two magnets creates a more powerful interaction and a larger range of operation. Want to build a strong closure? Apply two magnets instead of a neodymium and a striker plate. Exercise caution that when bringing together two magnets, the impact force is huge. The levitation is marginally weaker than the attraction, but still significant.
*Field value for N-N configuration drops to ~0 Gs at the midpoint between the magnets (due to field cancellation).
Attention: Estimates demonstrate friction force of dual identical magnets (friction ~0.15 for Ni-Ni coating).

Table 7: Safety (HSE) (electronics) - precautionary measures
MPL 20x8x4 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	6.5 cm
Hearing aid	10 Gs (1.0 mT)	5.0 cm
Timepiece	20 Gs (2.0 mT)	4.0 cm
Mobile device	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

Extremely neodym field poses a real danger to IT equipment and pacemakers. These neodymiums generate a flux that disrupts operation of digital equipment. Notice: the invisible magnetic field penetrates the body and plastic. Increased vigilance must be taken by people with hearing aids and drug dispensers. Influence will be felt by: mechanical watches, remotes, membranes, and screens. Do not bring the product near payment cards, HDD media, or sensitive navigation tools.

Table 8: Impact energy (cracking risk) - warning
MPL 20x8x4 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	32.16 km/h (8.93 m/s)	0.19 J
30 mm	55.18 km/h (15.33 m/s)	0.56 J
50 mm	71.24 km/h (19.79 m/s)	0.94 J
100 mm	100.75 km/h (27.99 m/s)	1.88 J

NdFeB products are very brittle – a strong collision with metal can result in shattering. Control the attraction moment – a neodymium left loose turns into a projectile. Impact energy can cause material chips or painful pinches to skin. Be sure to control the product during installation so it doesn't hit violently against the metal. A contact at a velocity of dozens of km/h means shattering of the magnet. Wear safety glasses when playing with large magnets.

Table 9: Surface protection spec
MPL 20x8x4 / 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)

For outdoor applications, an epoxy coating is required; standard nickel is intended for indoor use. Improper coating selection is the most common cause of magnet failure over time.

Table 10: Construction data (Flux)
MPL 20x8x4 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	5 277 Mx	52.8 µWb
P_c Coefficient	0.38	Low (Flat)

Flux value passing through the magnet pole. Essential parameter when building generators and motors. The P_c coefficient determines the magnet's operating point.

Table 11: Underwater work (magnet fishing)
MPL 20x8x4 / N38

Environment	Effective steel pull	Effect
Air (land)	4.79 kg	Standard
Water (riverbed)	5.48 kg (+0.69 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!

In water, the magnet feels stronger thanks to Archimedes' principle. As a result, your magnet will pull a heavier object from the bottom than if you lifted it in the air.

1. Vertical hold

*Warning: On a vertical surface, the magnet retains just a fraction of its max power.

2. Plate thickness effect

*Thin steel (e.g. 0.5mm PC case) drastically weakens the holding force.

3. Heat tolerance

*For N38 material, the critical limit is 80°C.

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 0.38

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.

Technical and environmental data

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

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: 020133-2026

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SM 18x200 [2xM5] / N42 - magnetic separator

442.80 ZŁ brutto / pcs

This product is a very powerful plate magnet made of NdFeB material, which, with dimensions of 20x8x4 mm and a weight of 4.8 g, guarantees premium class connection. This rectangular block with a force of 46.98 N is ready for shipment in 24h, allowing for rapid realization of your project. Furthermore, its Ni-Cu-Ni coating secures it against corrosion in standard operating conditions, giving it an aesthetic appearance.

Separating block magnets requires a technique based on sliding (moving one relative to the other), rather than forceful pulling apart. Watch your fingers! Magnets with a force of 4.79 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 20x8x4 / N38 are the foundation for many industrial devices, such as filters catching filings and linear motors. Thanks to the flat surface and high force (approx. 4.79 kg), they are ideal as closers in furniture making and mounting elements in automation. Customers often choose this model for hanging tools on strips and for advanced DIY and modeling projects, where precision and power count.

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).

The magnetic axis runs through the shortest dimension, which is typical for gripper magnets. In practice, this means that this magnet has the greatest attraction force on its main planes (20x8 mm), which is ideal for flat mounting. This is the most popular configuration for block magnets used in separators and holders.

This model is characterized by dimensions 20x8x4 mm, which, at a weight of 4.8 g, makes it an element with high energy density. It is a magnetic block with dimensions 20x8x4 mm and a self-weight of 4.8 g, ready to work at temperatures up to 80°C. The product meets the standards for N38 grade magnets.

Advantages and disadvantages of neodymium magnets.

Benefits

Apart from their consistent magnetic energy, neodymium magnets have these key benefits:

Their power is maintained, and after approximately 10 years it drops only by ~1% (according to research),
They have excellent resistance to magnetism drop when exposed to external magnetic sources,
By covering with a reflective coating of nickel, the element gains an elegant look,
Neodymium magnets deliver maximum magnetic induction on a small area, which increases force concentration,
Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and are able to act (depending on the form) even at a temperature of 230°C or more...
Possibility of custom creating and adjusting to precise requirements,
Significant place in innovative solutions – they are commonly used in magnetic memories, drive modules, diagnostic systems, and complex engineering applications.
Compactness – despite small sizes they generate large force, making them ideal for precision applications

Limitations

Cons of neodymium magnets: weaknesses and usage proposals

To avoid cracks under impact, we suggest using special steel holders. Such a solution protects the magnet and simultaneously increases its durability.
When exposed to high temperature, neodymium magnets experience a drop in power. Often, when the temperature exceeds 80°C, their power decreases (depending on the size, as well as 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 while using outdoors, we recommend using waterproof magnets made of rubber, plastic or other material resistant to moisture
Limited ability of creating threads in the magnet and complicated shapes - preferred is cover - magnet mounting.
Health risk resulting from small fragments of magnets pose a threat, when accidentally swallowed, which is particularly important in the aspect of protecting the youngest. It is also worth noting that small elements of these magnets can complicate diagnosis medical after entering the body.
Due to expensive raw materials, their price is higher than average,

Lifting parameters

Maximum magnetic pulling force – what contributes to it?

The declared magnet strength concerns the maximum value, recorded under ideal test conditions, specifically:

on a block made of structural steel, perfectly concentrating the magnetic field
with a thickness minimum 10 mm
with a surface cleaned and smooth
with direct contact (without paint)
for force applied at a right angle (in the magnet axis)
at standard ambient temperature

Impact of factors on magnetic holding capacity in practice

It is worth knowing that the application force may be lower depending on the following factors, in order of importance:

Air gap (betwixt the magnet and the plate), since even a microscopic clearance (e.g. 0.5 mm) results in a drastic drop in force by up to 50% (this also applies to varnish, corrosion or debris).
Force direction – catalog parameter refers to detachment vertically. When slipping, the magnet holds much less (typically approx. 20-30% of nominal force).
Wall thickness – the thinner the sheet, the weaker the hold. Part of the magnetic field passes through the material instead of generating force.
Steel grade – ideal substrate is high-permeability steel. Stainless steels may attract less.
Smoothness – full contact is obtained only on polished steel. Any scratches and bumps create air cushions, reducing force.
Temperature influence – hot environment weakens pulling force. Too high temperature can permanently damage the magnet.

Lifting capacity was assessed with the use of a polished steel plate of optimal thickness (min. 20 mm), under vertically applied force, however under parallel forces the lifting capacity is smaller. In addition, even a small distance between the magnet’s surface and the plate reduces the load capacity.

Warnings

Precision electronics

GPS units and smartphones are extremely sensitive to magnetism. Close proximity with a strong magnet can permanently damage the internal compass in your phone.

Life threat

Life threat: Neodymium magnets can deactivate pacemakers and defibrillators. Stay away if you have electronic implants.

Electronic devices

Equipment safety: Neodymium magnets can damage data carriers and sensitive devices (heart implants, medical aids, mechanical watches).

Do not underestimate power

Be careful. Rare earth magnets attract from a long distance and connect with massive power, often faster than you can react.

Machining danger

Mechanical processing of neodymium magnets poses a fire risk. Neodymium dust reacts violently with oxygen and is hard to extinguish.

Do not give to children

Always store magnets away from children. Choking hazard is high, and the consequences of magnets clamping inside the body are life-threatening.

Nickel allergy

Certain individuals have a hypersensitivity to nickel, which is the standard coating for NdFeB magnets. Extended handling can result in dermatitis. We recommend use protective gloves.

Bone fractures

Watch your fingers. Two powerful magnets will join immediately with a force of several hundred kilograms, destroying anything in their path. Be careful!

Eye protection

Watch out for shards. Magnets can fracture upon violent connection, launching sharp fragments into the air. Wear goggles.

Heat sensitivity

Watch the temperature. Heating the magnet above 80 degrees Celsius will permanently weaken its properties and strength.

Safety First! Learn more about risks in the article: Magnet Safety Guide.

MPL 20x8x4 / N38 - lamellar magnet

Technical parameters of the product - MPL 20x8x4 / N38 - lamellar magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical modeling of the magnet - data

Table 1: Static force (pull vs distance) - interaction chart MPL 20x8x4 / N38

Table 2: Shear capacity (vertical surface) MPL 20x8x4 / N38

Table 3: Wall mounting (sliding) - behavior on slippery surfaces MPL 20x8x4 / N38

Table 4: Material efficiency (saturation) - power losses MPL 20x8x4 / N38

Table 5: Working in heat (stability) - resistance threshold MPL 20x8x4 / N38

Table 6: Magnet-Magnet interaction (repulsion) - field range MPL 20x8x4 / N38

Table 7: Safety (HSE) (electronics) - precautionary measures MPL 20x8x4 / N38

Table 8: Impact energy (cracking risk) - warning MPL 20x8x4 / N38

Table 9: Surface protection spec MPL 20x8x4 / N38

Table 10: Construction data (Flux) MPL 20x8x4 / N38

Table 11: Underwater work (magnet fishing) MPL 20x8x4 / N38

1. Vertical hold

2. Plate thickness effect

3. Heat tolerance

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

Elemental analysis

Sustainability

Pulling force

Magnetic Field

Other proposals

MPL 20x8x4 / N38 - lamellar magnet

MW 10x20 / N38 - cylindrical magnet

MW 29x10 / N38 - cylindrical magnet

SM 18x200 [2xM5] / N42 - magnetic separator

Advantages and disadvantages of neodymium magnets.

Benefits

Limitations

Lifting parameters

Maximum magnetic pulling force – what contributes to it?

Impact of factors on magnetic holding capacity in practice

Warnings

Precision electronics

Life threat

Electronic devices

Do not underestimate power

Machining danger

Do not give to children

Nickel allergy

Bone fractures

Eye protection

Heat sensitivity

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (pull vs distance) - interaction chart
MPL 20x8x4 / N38

Table 2: Shear capacity (vertical surface)
MPL 20x8x4 / N38

Table 3: Wall mounting (sliding) - behavior on slippery surfaces
MPL 20x8x4 / N38

Table 4: Material efficiency (saturation) - power losses
MPL 20x8x4 / N38

Table 5: Working in heat (stability) - resistance threshold
MPL 20x8x4 / N38

Table 6: Magnet-Magnet interaction (repulsion) - field range
MPL 20x8x4 / N38

Table 7: Safety (HSE) (electronics) - precautionary measures
MPL 20x8x4 / N38

Table 8: Impact energy (cracking risk) - warning
MPL 20x8x4 / N38

Table 9: Surface protection spec
MPL 20x8x4 / N38

Table 10: Construction data (Flux)
MPL 20x8x4 / N38

Table 11: Underwater work (magnet fishing)
MPL 20x8x4 / N38