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MPL 20x5x5 / 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 020132

GTIN/EAN: 5906301811381

5.00

length

20 mm [±0,1 mm]

Width

5 mm [±0,1 mm]

Height

5 mm [±0,1 mm]

Weight

3.75 g

Magnetization Direction

↑ axial

Load capacity

4.42 kg / 43.32 N

Magnetic Induction

456.78 mT / 4568 Gs

Coating

[NiCuNi] Nickel

technical details »

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Technical specification of the product - MPL 20x5x5 / N38 - lamellar magnet

Specification / characteristics - MPL 20x5x5 / N38 - lamellar magnet

properties

properties	values
Cat. no.	020132
GTIN/EAN	5906301811381
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	5 mm [±0,1 mm]
Height	5 mm [±0,1 mm]
Weight	3.75 g
Magnetization Direction	↑ axial
Load capacity ~ ?	4.42 kg / 43.32 N
Magnetic Induction ~ ?	456.78 mT / 4568 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MPL 20x5x5 / 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

Technical simulation of the magnet - data

These values are the outcome of a physical calculation. Results rely on models for the class Nd₂Fe₁₄B. Actual conditions might slightly differ from theoretical values. Treat these calculations as a reference point when designing systems.

Table 1: Static force (pull vs distance) - characteristics
MPL 20x5x5 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	4563 Gs 456.3 mT	4.42 kg / 9.74 pounds 4420.0 g / 43.4 N	medium risk
1 mm	3323 Gs 332.3 mT	2.34 kg / 5.17 pounds 2344.7 g / 23.0 N	medium risk
2 mm	2341 Gs 234.1 mT	1.16 kg / 2.56 pounds 1163.0 g / 11.4 N	weak grip
3 mm	1678 Gs 167.8 mT	0.60 kg / 1.32 pounds 597.4 g / 5.9 N	weak grip
5 mm	944 Gs 94.4 mT	0.19 kg / 0.42 pounds 189.2 g / 1.9 N	weak grip
10 mm	320 Gs 32.0 mT	0.02 kg / 0.05 pounds 21.7 g / 0.2 N	weak grip
15 mm	141 Gs 14.1 mT	0.00 kg / 0.01 pounds 4.2 g / 0.0 N	weak grip
20 mm	73 Gs 7.3 mT	0.00 kg / 0.00 pounds 1.1 g / 0.0 N	weak grip
30 mm	26 Gs 2.6 mT	0.00 kg / 0.00 pounds 0.1 g / 0.0 N	weak grip
50 mm	7 Gs 0.7 mT	0.00 kg / 0.00 pounds 0.0 g / 0.0 N	weak grip

Magnetic force decreases drastically with every subsequent millimeter of spacing. Remember that even a very thin break (e.g., contamination, varnish, veneer) noticeably diminishes the holding power. Neodymiums work most effectively during direct contact; air break drastically cuts the force. Notice how rapidly the pull force plummet, when the product does not adhere directly to the steel surface. When planning the assembly, eliminate redundant distances.

Table 2: Sliding force (vertical surface)
MPL 20x5x5 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	0.88 kg / 1.95 pounds 884.0 g / 8.7 N
1 mm	Stal (~0.2)	0.47 kg / 1.03 pounds 468.0 g / 4.6 N
2 mm	Stal (~0.2)	0.23 kg / 0.51 pounds 232.0 g / 2.3 N
3 mm	Stal (~0.2)	0.12 kg / 0.26 pounds 120.0 g / 1.2 N
5 mm	Stal (~0.2)	0.04 kg / 0.08 pounds 38.0 g / 0.4 N
10 mm	Stal (~0.2)	0.00 kg / 0.01 pounds 4.0 g / 0.0 N
15 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 0.0 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

This section calculates the estimated force necessary to cause the shifting of the magnet vertically against a upright metal surface (assuming typical friction). This parameter is relative to the gap size between the magnet and the surface.

Table 3: Vertical assembly (sliding) - vertical pull
MPL 20x5x5 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	1.33 kg / 2.92 pounds 1326.0 g / 13.0 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.88 kg / 1.95 pounds 884.0 g / 8.7 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.44 kg / 0.97 pounds 442.0 g / 4.3 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	2.21 kg / 4.87 pounds 2210.0 g / 21.7 N

When hanging a holder on a vertical wall (e.g., a board), it will only hold just approx. 1/5 of its maximum pull force. Gravitational force as well as a weak degree of grip cause that holders slip easier than they pop off the substrate. Designing a vertical fastening? Consider that the shear force is much weaker than the maximum static pull force. On a smooth steel, the holder will slide down under a much lighter load. Utilizing a rubberized layer can effectively improve the result.

Table 4: Steel thickness (substrate influence) - sheet metal selection
MPL 20x5x5 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.44 kg / 0.97 pounds 442.0 g / 4.3 N
1 mm	25%	1.11 kg / 2.44 pounds 1105.0 g / 10.8 N
2 mm	50%	2.21 kg / 4.87 pounds 2210.0 g / 21.7 N
3 mm	75%	3.32 kg / 7.31 pounds 3315.0 g / 32.5 N
5 mm	100%	4.42 kg / 9.74 pounds 4420.0 g / 43.4 N
10 mm	100%	4.42 kg / 9.74 pounds 4420.0 g / 43.4 N
11 mm	100%	4.42 kg / 9.74 pounds 4420.0 g / 43.4 N
12 mm	100%	4.42 kg / 9.74 pounds 4420.0 g / 43.4 N

A thin metal plate is unable to absorb the entire magnetic field, which weakens actual performance of the magnet. Should you attach a powerful product to a too thin substrate, the magnetism will pass right through and the attraction force will be weaker. To squeeze 100% of this neodymium's power, you need a suitably thick piece of metal. The saturation effect causes that on delicate walls (e.g., appliance housings), the product holds weaker. We suggest choosing the steel thickness according to the table below.

Table 5: Thermal resistance (material behavior) - resistance threshold
MPL 20x5x5 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	4.42 kg / 9.74 pounds 4420.0 g / 43.4 N	OK
40 °C	-2.2%	4.32 kg / 9.53 pounds 4322.8 g / 42.4 N	OK
60 °C	-4.4%	4.23 kg / 9.32 pounds 4225.5 g / 41.5 N
80 °C	-6.6%	4.13 kg / 9.10 pounds 4128.3 g / 40.5 N
100 °C	-28.8%	3.15 kg / 6.94 pounds 3147.0 g / 30.9 N

Standard neodymium magnets irreversibly lose strength past the thermal threshold. Watch out for overheating – excessive heat can irreversibly destroy this magnet. With every degree above norm, the magnet's power briefly decreases. Avoid using this magnet in hot environments higher than its safe range. Ignoring the limit will result in permanent loss of magnetic properties.

*Technical advisory: Thermal stability is determined by both grade, but also on the magnet's shape. Low-profile magnets (pancake types) may lose charge permanently sooner compared to rod magnets. Warning indicator in the table indicates a risk of irreversible loss for this particular item.

Table 6: Magnet-Magnet interaction (attraction) - forces in the system
MPL 20x5x5 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Strength (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	12.84 kg / 28.30 pounds 5 504 Gs	1.93 kg / 4.24 pounds 1925 g / 18.9 N	N/A
1 mm	9.53 kg / 21.01 pounds 7 864 Gs	1.43 kg / 3.15 pounds 1430 g / 14.0 N	8.58 kg / 18.91 pounds ~0 Gs
2 mm	6.81 kg / 15.01 pounds 6 647 Gs	1.02 kg / 2.25 pounds 1021 g / 10.0 N	6.13 kg / 13.51 pounds ~0 Gs
3 mm	4.79 kg / 10.57 pounds 5 577 Gs	0.72 kg / 1.59 pounds 719 g / 7.1 N	4.31 kg / 9.51 pounds ~0 Gs
5 mm	2.40 kg / 5.30 pounds 3 949 Gs	0.36 kg / 0.79 pounds 360 g / 3.5 N	2.16 kg / 4.77 pounds ~0 Gs
10 mm	0.55 kg / 1.21 pounds 1 888 Gs	0.08 kg / 0.18 pounds 82 g / 0.8 N	0.49 kg / 1.09 pounds ~0 Gs
20 mm	0.06 kg / 0.14 pounds 640 Gs	0.01 kg / 0.02 pounds 9 g / 0.1 N	0.06 kg / 0.13 pounds ~0 Gs
50 mm	0.00 kg / 0.00 pounds 84 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 53 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 35 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 24 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 18 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 13 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs

Two magnetic products attract each other from a significantly greater distance than a magnet and steel setup. The connection of magnet-to-magnet creates a more powerful interaction and a further horizon of action. Want to build a solid fastener? Use a pair of magnets instead of one magnet and a striker plate. Be careful that when bringing together two magnets, the collision energy is massive. The repulsion force is marginally weaker than the attraction, but still large.
*Field value in repulsion mode is approximately ~0 Gs at the geometric center between the magnets (caused by magnetic field nullification).
Note: Figures refer to shear force of dual matching neodymium magnets (friction ~0.15 for Ni-Ni layer).

Table 7: Protective zones (implants) - warnings
MPL 20x5x5 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	6.0 cm
Hearing aid	10 Gs (1.0 mT)	4.5 cm
Mechanical watch	20 Gs (2.0 mT)	3.5 cm
Phone / Smartphone	40 Gs (4.0 mT)	3.0 cm
Remote	50 Gs (5.0 mT)	2.5 cm
Payment card	400 Gs (40.0 mT)	1.0 cm
HDD hard drive	600 Gs (60.0 mT)	1.0 cm

Extremely neodym field poses a real danger to IT equipment and medical implants. These neodymiums generate a field that prevents correct functioning of digital equipment. Be aware: the invisible magnetic field passes through tissues and glass. Increased vigilance must be taken by people with hearing aids and insulin pumps. The risk also applies to: mechanical watches, car keys, membranes, and screens. Avoid contact with magnetic cards, HDD media, or sensitive navigation tools.

Table 8: Impact energy (cracking risk) - warning
MPL 20x5x5 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	34.73 km/h (9.65 m/s)	0.17 J
30 mm	59.97 km/h (16.66 m/s)	0.52 J
50 mm	77.42 km/h (21.51 m/s)	0.87 J
100 mm	109.49 km/h (30.41 m/s)	1.73 J

Neodymium magnets are delicate – a collision with steel can result in shattering. Control the attraction moment – a neodymium left loose turns into a projectile. Striking energy can trigger coating fragments or painful pinches to fingers. Always hold the magnet during bringing near metal so it doesn't slam with momentum against the metal. A collision at high speed almost guarantees destruction of the magnet. Wear safety glasses when working with large magnets.

Table 9: Surface protection spec
MPL 20x5x5 / 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: Construction data (Flux)
MPL 20x5x5 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	4 204 Mx	42.0 µWb
P_c Coefficient	0.54	Low (Flat)

Total magnetic flux emitted by the magnet pole. Key data when building generators and motors. P_c value determines the magnet's operating point.

Table 11: Hydrostatics and buoyancy
MPL 20x5x5 / N38

Environment	Effective steel pull	Effect
Air (land)	4.42 kg	Standard
Water (riverbed)	5.06 kg (+0.64 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. As a result, your magnet will pull a heavier object from the bottom than if you lifted it in the air.

1. Sliding resistance

*Caution: On a vertical wall, the magnet holds only approx. 20-30% of its nominal pull.

2. Steel thickness impact

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

3. Thermal stability

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

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 0.54

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 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

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%

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: 020132-2026

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This product is a very powerful plate magnet made of NdFeB material, which, with dimensions of 20x5x5 mm and a weight of 3.75 g, guarantees premium class connection. As a magnetic bar with high power (approx. 4.42 kg), this product is available off-the-shelf from our warehouse in Poland. Additionally, its Ni-Cu-Ni coating secures it against corrosion in standard operating conditions, giving it an aesthetic appearance.

Separating strong flat 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 4.42 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.

They constitute a key element in the production of wind generators and material handling systems. Thanks to the flat surface and high force (approx. 4.42 kg), they are ideal as hidden locks in furniture making and mounting elements in automation. Customers often choose this model for workshop organization on strips and for advanced DIY and modeling projects, where precision and power count.

For mounting flat magnets MPL 20x5x5 / N38, it is best to use two-component adhesives (e.g., UHU Endfest, Distal), which ensure a durable bond with metal or plastic. 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).

Standardly, the MPL 20x5x5 / N38 model is magnetized through the thickness (dimension 5 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 20x5x5 mm, which, at a weight of 3.75 g, makes it an element with impressive energy density. It is a magnetic block with dimensions 20x5x5 mm and a self-weight of 3.75 g, ready to work at temperatures up to 80°C. The protective [NiCuNi] coating secures the magnet against corrosion.

Pros as well as cons of rare earth magnets.

Pros

Apart from their superior holding force, neodymium magnets have these key benefits:

They virtually do not lose strength, because even after 10 years the performance loss is only ~1% (based on calculations),
Magnets very well resist against demagnetization caused by ambient magnetic noise,
In other words, due to the metallic finish of silver, the element gains a professional look,
The surface of neodymium magnets generates a strong magnetic field – this is a distinguishing feature,
Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their shape) at temperatures up to 230°C and above...
Thanks to modularity in constructing and the capacity to adapt to specific needs,
Wide application in future technologies – they serve a role in mass storage devices, electromotive mechanisms, diagnostic systems, also industrial machines.
Relatively small size with high pulling force – neodymium magnets offer high power in small dimensions, which allows their use in small systems

Limitations

Disadvantages of neodymium magnets:

Susceptibility to cracking is one of their disadvantages. Upon intense impact they can fracture. We advise keeping them in a special holder, which not only protects them against impacts but also raises their durability
When exposed to high temperature, neodymium magnets experience a drop in force. Often, when the temperature exceeds 80°C, their strength 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 when using outdoors, we recommend using water-impermeable magnets made of rubber, plastic or other material protecting against moisture
Limited possibility of making threads in the magnet and complicated forms - preferred is casing - magnet mounting.
Potential hazard to health – tiny shards of magnets pose a threat, in case of ingestion, which gains importance in the context of child health protection. It is also worth noting that small elements of these devices can disrupt the diagnostic process medical when they are in the body.
High unit price – neodymium magnets cost more than other types of magnets (e.g. ferrite), which hinders application in large quantities

Holding force characteristics

Maximum magnetic pulling force – what affects it?

Breakaway force was determined for ideal contact conditions, taking into account:

using a plate made of high-permeability steel, functioning as a circuit closing element
whose transverse dimension equals approx. 10 mm
with a surface perfectly flat
without any clearance between the magnet and steel
during detachment in a direction vertical to the plane
at ambient temperature room level

Lifting capacity in real conditions – factors

Bear in mind that the application force will differ subject to elements below, in order of importance:

Air gap (betwixt the magnet and the plate), because even a microscopic clearance (e.g. 0.5 mm) results in a decrease in lifting capacity by up to 50% (this also applies to varnish, rust or dirt).
Loading method – declared lifting capacity refers to detachment vertically. When slipping, the magnet exhibits significantly lower power (often approx. 20-30% of maximum force).
Wall thickness – thin material does not allow full use of the magnet. Part of the magnetic field penetrates through instead of generating force.
Steel grade – ideal substrate is pure iron steel. Stainless steels may attract less.
Smoothness – full contact is obtained only on smooth steel. Rough texture create air cushions, reducing force.
Heat – NdFeB sinters have a sensitivity to temperature. When it is hot they are weaker, and in frost gain strength (up to a certain limit).

Lifting capacity testing was conducted on a smooth plate of optimal thickness, under perpendicular forces, in contrast under shearing force the holding force is lower. Moreover, even a small distance between the magnet and the plate reduces the lifting capacity.

H&S for magnets

Medical interference

Life threat: Strong magnets can deactivate heart devices and defibrillators. Do not approach if you have electronic implants.

Mechanical processing

Powder created during cutting of magnets is flammable. Do not drill into magnets unless you are an expert.

Handling rules

Before use, check safety instructions. Uncontrolled attraction can destroy the magnet or injure your hand. Be predictive.

Danger to the youngest

Neodymium magnets are not suitable for play. Accidental ingestion of several magnets can lead to them pinching intestinal walls, which constitutes a severe health hazard and necessitates urgent medical intervention.

Do not overheat magnets

Standard neodymium magnets (grade N) undergo demagnetization when the temperature exceeds 80°C. The loss of strength is permanent.

Bone fractures

Risk of injury: The pulling power is so immense that it can result in hematomas, crushing, and broken bones. Protective gloves are recommended.

Magnetic interference

GPS units and mobile phones are extremely susceptible to magnetic fields. Close proximity with a powerful NdFeB magnet can decalibrate the internal compass in your phone.

Magnets are brittle

NdFeB magnets are ceramic materials, meaning they are fragile like glass. Impact of two magnets leads to them cracking into small pieces.

Warning for allergy sufferers

Allergy Notice: The nickel-copper-nickel coating consists of nickel. If skin irritation happens, cease handling magnets and use protective gear.

Protect data

Data protection: Neodymium magnets can ruin payment cards and sensitive devices (pacemakers, hearing aids, mechanical watches).

Warning! Need more info? Check our post: Why are neodymium magnets dangerous?

MPL 20x5x5 / N38 - lamellar magnet

Technical specification of the product - MPL 20x5x5 / N38 - lamellar magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Technical simulation of the magnet - data

Table 1: Static force (pull vs distance) - characteristics MPL 20x5x5 / N38

Table 2: Sliding force (vertical surface) MPL 20x5x5 / N38

Table 3: Vertical assembly (sliding) - vertical pull MPL 20x5x5 / N38

Table 4: Steel thickness (substrate influence) - sheet metal selection MPL 20x5x5 / N38

Table 5: Thermal resistance (material behavior) - resistance threshold MPL 20x5x5 / N38

Table 6: Magnet-Magnet interaction (attraction) - forces in the system MPL 20x5x5 / N38

Table 7: Protective zones (implants) - warnings MPL 20x5x5 / N38

Table 8: Impact energy (cracking risk) - warning MPL 20x5x5 / N38

Table 9: Surface protection spec MPL 20x5x5 / N38

Table 10: Construction data (Flux) MPL 20x5x5 / N38

Table 11: Hydrostatics and buoyancy MPL 20x5x5 / N38

1. Sliding resistance

2. Steel thickness impact

3. Thermal stability

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

Chemical composition

Sustainability

Magnet pull force

Magnetic Induction

Other proposals

MW 45x15 / N38 - cylindrical magnet

MPL 30x15x2 / N38 - lamellar magnet

UMT 12x20 black / N38 - board holder

MW 16x9 / N38 - cylindrical magnet

Pros as well as cons of rare earth magnets.

Pros

Limitations

Holding force characteristics

Maximum magnetic pulling force – what affects it?

Lifting capacity in real conditions – factors

H&S for magnets

Medical interference

Mechanical processing

Handling rules

Danger to the youngest

Do not overheat magnets

Bone fractures

Magnetic interference

Magnets are brittle

Warning for allergy sufferers

Protect data

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (pull vs distance) - characteristics
MPL 20x5x5 / N38

Table 2: Sliding force (vertical surface)
MPL 20x5x5 / N38

Table 3: Vertical assembly (sliding) - vertical pull
MPL 20x5x5 / N38

Table 4: Steel thickness (substrate influence) - sheet metal selection
MPL 20x5x5 / N38

Table 5: Thermal resistance (material behavior) - resistance threshold
MPL 20x5x5 / N38

Table 6: Magnet-Magnet interaction (attraction) - forces in the system
MPL 20x5x5 / N38

Table 7: Protective zones (implants) - warnings
MPL 20x5x5 / N38

Table 8: Impact energy (cracking risk) - warning
MPL 20x5x5 / N38

Table 9: Surface protection spec
MPL 20x5x5 / N38

Table 10: Construction data (Flux)
MPL 20x5x5 / N38

Table 11: Hydrostatics and buoyancy
MPL 20x5x5 / N38