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MP 62x42x25 / N38 - ring 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

ring magnet

Catalog no 030205

GTIN/EAN: 5906301812227

5.00

Diameter

62 mm [±0,1 mm]

internal diameter Ø

42 mm [±0,1 mm]

Height

25 mm [±0,1 mm]

Weight

306.31 g

Magnetization Direction

↑ axial

Load capacity

58.67 kg / 575.60 N

Magnetic Induction

389.14 mT / 3891 Gs

Coating

[NiCuNi] Nickel

product parameters »

165.00 ZŁ with VAT / pcs + price for transport

134.15 ZŁ net + 23% VAT / pcs

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Detailed specification - MP 62x42x25 / N38 - ring magnet

Specification / characteristics - MP 62x42x25 / N38 - ring magnet

properties

properties	values
Cat. no.	030205
GTIN/EAN	5906301812227
Production/Distribution	Dhit sp. z o.o. ul. Zielona 14 05-850 Ożarów Mazowiecki PL
Country of origin	Poland / China / Germany
Customs code	85059029
Diameter	62 mm [±0,1 mm]
internal diameter Ø	42 mm [±0,1 mm]
Height	25 mm [±0,1 mm]
Weight	306.31 g
Magnetization Direction	↑ axial
Load capacity ~ ?	58.67 kg / 575.60 N
Magnetic Induction ~ ?	389.14 mT / 3891 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MP 62x42x25 / N38 - ring 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 analysis of the product - technical parameters

Presented values represent the outcome of a physical analysis. Values are based on models for the class Nd₂Fe₁₄B. Real-world parameters may differ. Use these calculations as a reference point for designers.

Table 1: Static force (pull vs gap) - interaction chart
MP 62x42x25 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	4472 Gs 447.2 mT	58.67 kg / 129.35 LBS 58670.0 g / 575.6 N	critical level
1 mm	4338 Gs 433.8 mT	55.21 kg / 121.72 LBS 55213.2 g / 541.6 N	critical level
2 mm	4201 Gs 420.1 mT	51.77 kg / 114.13 LBS 51768.5 g / 507.8 N	critical level
3 mm	4061 Gs 406.1 mT	48.39 kg / 106.69 LBS 48394.9 g / 474.8 N	critical level
5 mm	3781 Gs 378.1 mT	41.94 kg / 92.47 LBS 41942.4 g / 411.5 N	critical level
10 mm	3097 Gs 309.7 mT	28.15 kg / 62.06 LBS 28148.0 g / 276.1 N	critical level
15 mm	2485 Gs 248.5 mT	18.12 kg / 39.94 LBS 18118.5 g / 177.7 N	critical level
20 mm	1972 Gs 197.2 mT	11.41 kg / 25.16 LBS 11412.7 g / 112.0 N	critical level
30 mm	1239 Gs 123.9 mT	4.51 kg / 9.93 LBS 4505.2 g / 44.2 N	medium risk
50 mm	533 Gs 53.3 mT	0.83 kg / 1.84 LBS 832.4 g / 8.2 N	low risk

Magnetic force weakens sharply with every subsequent millimeter of distance. Keep in mind that even a microscopic distance (e.g., dirt, paint, rust) significantly diminishes the holding power. Neodymiums work strongest at the point of direct contact; gap drastically cuts the force. See how flashily the parameters plummet, when the magnet does not adhere directly to the metal substrate. When calculating the mounting, discard unnecessary gaps.

Table 2: Vertical force (wall)
MP 62x42x25 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	11.73 kg / 25.87 LBS 11734.0 g / 115.1 N
1 mm	Stal (~0.2)	11.04 kg / 24.34 LBS 11042.0 g / 108.3 N
2 mm	Stal (~0.2)	10.35 kg / 22.83 LBS 10354.0 g / 101.6 N
3 mm	Stal (~0.2)	9.68 kg / 21.34 LBS 9678.0 g / 94.9 N
5 mm	Stal (~0.2)	8.39 kg / 18.49 LBS 8388.0 g / 82.3 N
10 mm	Stal (~0.2)	5.63 kg / 12.41 LBS 5630.0 g / 55.2 N
15 mm	Stal (~0.2)	3.62 kg / 7.99 LBS 3624.0 g / 35.6 N
20 mm	Stal (~0.2)	2.28 kg / 5.03 LBS 2282.0 g / 22.4 N
30 mm	Stal (~0.2)	0.90 kg / 1.99 LBS 902.0 g / 8.8 N
50 mm	Stal (~0.2)	0.17 kg / 0.37 LBS 166.0 g / 1.6 N

This section indicates the theoretical weight limit required to cause the sliding of the magnet downwards against a upright steel plate (considering typical friction). This parameter varies with the air gap between the magnet and the metal.

Table 3: Wall mounting (shearing) - behavior on slippery surfaces
MP 62x42x25 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	17.60 kg / 38.80 LBS 17601.0 g / 172.7 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	11.73 kg / 25.87 LBS 11734.0 g / 115.1 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	5.87 kg / 12.93 LBS 5867.0 g / 57.6 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	29.34 kg / 64.67 LBS 29335.0 g / 287.8 N

When placing a magnet on a upright plane (e.g., a fridge), it will maintain only about 20%-30% of its maximum pull force. Gravity and a low friction coefficient mean that holders slip easier than they pop off the substrate. Designing a hanger? Remember that the sliding force is noticeably lower than the maximum static pull force. On a smooth steel, the magnet will give way down under a significantly smaller weight. Application of an anti-slip layer can significantly raise the stability.

Table 4: Steel thickness (saturation) - sheet metal selection
MP 62x42x25 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	3%	1.96 kg / 4.31 LBS 1955.7 g / 19.2 N
1 mm	8%	4.89 kg / 10.78 LBS 4889.2 g / 48.0 N
2 mm	17%	9.78 kg / 21.56 LBS 9778.3 g / 95.9 N
3 mm	25%	14.67 kg / 32.34 LBS 14667.5 g / 143.9 N
5 mm	42%	24.45 kg / 53.89 LBS 24445.8 g / 239.8 N
10 mm	83%	48.89 kg / 107.79 LBS 48891.7 g / 479.6 N
11 mm	92%	53.78 kg / 118.57 LBS 53780.8 g / 527.6 N
12 mm	100%	58.67 kg / 129.35 LBS 58670.0 g / 575.6 N

A thin metal plate is unable to conduct the full magnetic flux, which wastes potential of the holder. Should you mount a strong magnet to a thin surface, the flux will pass right through and the holding will be smaller. To utilize full efficiency of this neodymium's power, you require a sufficiently solid backing of metal. The saturation effect causes that on sheet metal structures (e.g., car bodies), the product works worse. We advise picking the steel dimension from these parameters.

Table 5: Thermal resistance (material behavior) - power drop
MP 62x42x25 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	58.67 kg / 129.35 LBS 58670.0 g / 575.6 N	OK
40 °C	-2.2%	57.38 kg / 126.50 LBS 57379.3 g / 562.9 N	OK
60 °C	-4.4%	56.09 kg / 123.65 LBS 56088.5 g / 550.2 N	OK
80 °C	-6.6%	54.80 kg / 120.81 LBS 54797.8 g / 537.6 N
100 °C	-28.8%	41.77 kg / 92.09 LBS 41773.0 g / 409.8 N

Ordinary NdFeB products lose power past the thermal threshold. Avoid high temperatures – heat can permanently demagnetize this magnet. With every degree above norm, the magnet's capacity briefly lowers. Avoid using this magnet close to heaters higher than its safe range. Too high temperature will result in irreversible degradation of magnetism.

*Engineering note: Heat tolerance depends not only on the material grade, but also on the magnet's shape. Thin magnets (pancake types) may lose charge permanently at lower temperatures than taller cylinders. Warning indicator in the table signals a risk of irreversible loss for this specific geometry.

Table 6: Magnet-Magnet interaction (attraction) - field range
MP 62x42x25 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Lateral Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	264.93 kg / 584.07 LBS 5 588 Gs	39.74 kg / 87.61 LBS 39740 g / 389.8 N	N/A
1 mm	257.19 kg / 567.00 LBS 8 812 Gs	38.58 kg / 85.05 LBS 38578 g / 378.4 N	231.47 kg / 510.30 LBS ~0 Gs
2 mm	249.32 kg / 549.66 LBS 8 676 Gs	37.40 kg / 82.45 LBS 37398 g / 366.9 N	224.39 kg / 494.69 LBS ~0 Gs
3 mm	241.51 kg / 532.44 LBS 8 539 Gs	36.23 kg / 79.87 LBS 36227 g / 355.4 N	217.36 kg / 479.19 LBS ~0 Gs
5 mm	226.10 kg / 498.47 LBS 8 262 Gs	33.92 kg / 74.77 LBS 33915 g / 332.7 N	203.49 kg / 448.62 LBS ~0 Gs
10 mm	189.40 kg / 417.55 LBS 7 562 Gs	28.41 kg / 62.63 LBS 28409 g / 278.7 N	170.46 kg / 375.79 LBS ~0 Gs
20 mm	127.11 kg / 280.22 LBS 6 195 Gs	19.07 kg / 42.03 LBS 19066 g / 187.0 N	114.40 kg / 252.20 LBS ~0 Gs
50 mm	32.28 kg / 71.17 LBS 3 122 Gs	4.84 kg / 10.68 LBS 4843 g / 47.5 N	29.06 kg / 64.06 LBS ~0 Gs
60 mm	20.34 kg / 44.85 LBS 2 478 Gs	3.05 kg / 6.73 LBS 3052 g / 29.9 N	18.31 kg / 40.36 LBS ~0 Gs
70 mm	12.99 kg / 28.63 LBS 1 980 Gs	1.95 kg / 4.29 LBS 1948 g / 19.1 N	11.69 kg / 25.77 LBS ~0 Gs
80 mm	8.43 kg / 18.59 LBS 1 595 Gs	1.26 kg / 2.79 LBS 1265 g / 12.4 N	7.59 kg / 16.73 LBS ~0 Gs
90 mm	5.58 kg / 12.29 LBS 1 298 Gs	0.84 kg / 1.84 LBS 836 g / 8.2 N	5.02 kg / 11.06 LBS ~0 Gs
100 mm	3.76 kg / 8.29 LBS 1 065 Gs	0.56 kg / 1.24 LBS 564 g / 5.5 N	3.38 kg / 7.46 LBS ~0 Gs

Two magnetic products interact from a wider radius than a magnet and sheet setup. The setup of two magnets produces a massive flux and a wider radius of operation. Planning to create a strong closure? Use a pair of magnets instead of one magnet and a steel. Exercise caution that when attracting two neodymiums, the impact force is extreme. The repulsion force is slightly lower than the attraction, but still large.
*The magnetic induction for N-N configuration reaches ~0 Gs in the exact middle of the gap (resulting from vector opposition).
* Calculations show shear force of two same neodymium magnets (friction ~0.15 for Ni-Ni coating).

Table 7: Hazards (electronics) - warnings
MP 62x42x25 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	32.5 cm
Hearing aid	10 Gs (1.0 mT)	25.5 cm
Mechanical watch	20 Gs (2.0 mT)	20.0 cm
Mobile device	40 Gs (4.0 mT)	15.5 cm
Car key	50 Gs (5.0 mT)	14.0 cm
Payment card	400 Gs (40.0 mT)	6.0 cm
HDD hard drive	600 Gs (60.0 mT)	5.0 cm

Extremely neodym field poses a large risk to IT equipment as well as pacemakers. These NdFeB products produce a flux that disrupts operation of sensitive medical devices. Be aware: the invisible magnetic field acts through matter and housings. Special caution must be exercised by people with cochlear implants and drug dispensers. Influence will be felt by: mechanical watches, car keys, membranes, and displays. Do not place the magnet near cards, hard drives, or sensitive navigation tools.

Table 8: Collisions (kinetic energy) - collision effects
MP 62x42x25 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	17.65 km/h (4.90 m/s)	3.68 J
30 mm	25.31 km/h (7.03 m/s)	7.57 J
50 mm	31.49 km/h (8.75 m/s)	11.72 J
100 mm	44.16 km/h (12.27 m/s)	23.04 J

Neodymium magnets are prone to chipping – a strong collision with metal can result in shattering. Watch the impact speed – a magnet released freely becomes dangerous. Kinetic force can cause material chips or dangerous crushing to skin. Hold the magnet firmly during mounting so it doesn't slam with momentum against the steel surface. A contact at a velocity of dozens of km/h almost guarantees destruction of the neodymium. Wear eye protection when playing with large magnets.

Table 9: Anti-corrosion coating durability
MP 62x42x25 / 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 SST (salt spray test) is an industry standard for determining coating lifespan in harsh conditions. Moisture resistance is crucial for installations in bathrooms or outdoors.

Table 10: Electrical data (Flux)
MP 62x42x25 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	100 906 Mx	1009.1 µWb
P_c Coefficient	0.64	High (Stable)

Flux value emitted by the magnet pole. Essential parameter for generator designers and motors. P_c value determines the working geometry.

Table 11: Hydrostatics and buoyancy
MP 62x42x25 / N38

Environment	Effective steel pull	Effect
Air (land)	58.67 kg	Standard
Water (riverbed)	67.18 kg (+8.51 kg buoyancy gain)	+14.5%

Rust risk: Standard nickel requires drying after every contact with moisture; lack of maintenance will lead to rust spots.

The magnetic field penetrates through water without any losses. However, remember the water resistance when pulling the rope quickly.

1. Shear force

*Warning: On a vertical wall, the magnet retains only ~20% of its nominal pull.

2. Steel saturation

*Thin metal sheet (e.g. computer case) severely limits 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) = 0.64

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 specification and ecology

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: 030205-2025

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The ring magnet with a hole MP 62x42x25 / N38 is created for permanent mounting, where glue might fail or be insufficient. Mounting is clean and reversible, unlike gluing. It is also often used in advertising for fixing signs and in workshops for organizing tools.

This is a crucial issue when working with model MP 62x42x25 / N38. Neodymium magnets are sintered ceramics, which means they are very brittle and inelastic. One turn too many can destroy the magnet, so do it slowly. The flat screw head should evenly press the magnet. Remember: cracking during assembly results from material properties, not a product defect.

Moisture can penetrate micro-cracks in the coating and cause oxidation of the magnet. Damage to the protective layer during assembly is the most common cause of rusting. If you must use it outside, paint it with anti-corrosion paint after mounting.

The inner hole diameter determines the maximum size of the mounting element. For magnets with a straight hole, a conical head can act like a wedge and burst the magnet. Always check that the screw head is not larger than the outer diameter of the magnet (62 mm), so it doesn't protrude beyond the outline.

It is a magnetic ring with a diameter of 62 mm and thickness 25 mm. The key parameter here is the lifting capacity amounting to approximately 58.67 kg (force ~575.60 N). The mounting hole diameter is precisely 42 mm.

These magnets are magnetized axially (through the thickness), which means one flat side is the N pole and the other is S. In the case of connecting two rings, make sure one is turned the right way. When ordering a larger quantity, magnets are usually packed in stacks, where they are already naturally paired.

Strengths as well as weaknesses of rare earth magnets.

Advantages

In addition to their long-term stability, neodymium magnets provide the following advantages:

They virtually do not lose power, because even after ten years the performance loss is only ~1% (according to literature),
They feature excellent resistance to weakening of magnetic properties due to opposing magnetic fields,
By applying a lustrous layer of nickel, the element gains an professional look,
They feature high magnetic induction at the operating surface, which improves attraction properties,
Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and can work (depending on the shape) even at a temperature of 230°C or more...
Due to the possibility of precise shaping and adaptation to individualized requirements, NdFeB magnets can be modeled in a broad palette of geometric configurations, which amplifies use scope,
Fundamental importance in modern industrial fields – they serve a role in HDD drives, drive modules, advanced medical instruments, also multitasking production systems.
Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in small dimensions, which allows their use in miniature devices

Weaknesses

What to avoid - cons of neodymium magnets and proposals for their use:

At strong impacts they can crack, therefore we recommend placing them in special holders. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
NdFeB magnets lose power when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of power (a factor is the shape and dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are very resistant to heat
Magnets exposed to a humid environment can rust. Therefore during using outdoors, we advise using water-impermeable magnets made of rubber, plastic or other material protecting against moisture
Limited ability of producing threads in the magnet and complex shapes - preferred is a housing - magnet mounting.
Potential hazard to health – tiny shards of magnets are risky, if swallowed, which is particularly important in the aspect of protecting the youngest. Additionally, tiny parts of these magnets are able to complicate diagnosis medical in case of swallowing.
Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications

Pull force analysis

Maximum lifting force for a neodymium magnet – what it depends on?

The lifting capacity listed is a theoretical maximum value performed under specific, ideal conditions:

using a plate made of mild steel, serving as a ideal flux conductor
whose thickness is min. 10 mm
with an ideally smooth contact surface
with zero gap (no coatings)
under axial force vector (90-degree angle)
at room temperature

Determinants of lifting force in real conditions

Real force is influenced by working environment parameters, including (from priority):

Space between magnet and steel – even a fraction of a millimeter of distance (caused e.g. by veneer or unevenness) drastically reduces the pulling force, often by half at just 0.5 mm.
Force direction – declared lifting capacity refers to pulling vertically. When applying parallel force, the magnet exhibits much less (often approx. 20-30% of nominal force).
Base massiveness – insufficiently thick sheet does not accept the full field, causing part of the flux to be wasted to the other side.
Metal type – not every steel attracts identically. Alloy additives worsen the interaction with the magnet.
Surface quality – the more even the plate, the better the adhesion and higher the lifting capacity. Roughness creates an air distance.
Temperature influence – hot environment weakens pulling force. Too high temperature can permanently demagnetize the magnet.

Holding force was measured on the plate surface of 20 mm thickness, when the force acted perpendicularly, however under shearing force the load capacity is reduced by as much as 75%. Additionally, even a slight gap between the magnet’s surface and the plate reduces the holding force.

H&S for magnets

Choking Hazard

Adult use only. Tiny parts pose a choking risk, leading to intestinal necrosis. Keep out of reach of children and animals.

Cards and drives

Very strong magnetic fields can erase data on credit cards, hard drives, and storage devices. Maintain a gap of at least 10 cm.

ICD Warning

Medical warning: Strong magnets can turn off pacemakers and defibrillators. Stay away if you have medical devices.

Permanent damage

Monitor thermal conditions. Heating the magnet above 80 degrees Celsius will destroy its magnetic structure and strength.

Impact on smartphones

Note: rare earth magnets generate a field that confuses sensitive sensors. Keep a safe distance from your phone, tablet, and navigation systems.

Dust is flammable

Machining of NdFeB material carries a risk of fire risk. Neodymium dust reacts violently with oxygen and is hard to extinguish.

Skin irritation risks

Studies show that the nickel plating (the usual finish) is a strong allergen. For allergy sufferers, prevent touching magnets with bare hands and opt for coated magnets.

Handling rules

Handle with care. Rare earth magnets act from a distance and connect with massive power, often faster than you can react.

Serious injuries

Large magnets can smash fingers in a fraction of a second. Never place your hand between two attracting surfaces.

Magnet fragility

Protect your eyes. Magnets can fracture upon violent connection, launching sharp fragments into the air. We recommend safety glasses.

Caution! Need more info? Read our article: Are neodymium magnets dangerous?

MP 62x42x25 / N38 - ring magnet

Detailed specification - MP 62x42x25 / N38 - ring magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical analysis of the product - technical parameters

Table 1: Static force (pull vs gap) - interaction chart MP 62x42x25 / N38

Table 2: Vertical force (wall) MP 62x42x25 / N38

Table 3: Wall mounting (shearing) - behavior on slippery surfaces MP 62x42x25 / N38

Table 4: Steel thickness (saturation) - sheet metal selection MP 62x42x25 / N38

Table 5: Thermal resistance (material behavior) - power drop MP 62x42x25 / N38

Table 6: Magnet-Magnet interaction (attraction) - field range MP 62x42x25 / N38

Table 7: Hazards (electronics) - warnings MP 62x42x25 / N38

Table 8: Collisions (kinetic energy) - collision effects MP 62x42x25 / N38

Table 9: Anti-corrosion coating durability MP 62x42x25 / N38

Table 10: Electrical data (Flux) MP 62x42x25 / N38

Table 11: Hydrostatics and buoyancy MP 62x42x25 / N38

1. Shear force

2. Steel saturation

3. Temperature resistance

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

Chemical composition

Sustainability

Force (pull)

Magnetic Induction

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Strengths as well as weaknesses of rare earth magnets.

Advantages

Weaknesses

Pull force analysis

Maximum lifting force for a neodymium magnet – what it depends on?

Determinants of lifting force in real conditions

H&S for magnets

Choking Hazard

Cards and drives

ICD Warning

Permanent damage

Impact on smartphones

Dust is flammable

Skin irritation risks

Handling rules

Serious injuries

Magnet fragility

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (pull vs gap) - interaction chart
MP 62x42x25 / N38

Table 2: Vertical force (wall)
MP 62x42x25 / N38

Table 3: Wall mounting (shearing) - behavior on slippery surfaces
MP 62x42x25 / N38

Table 4: Steel thickness (saturation) - sheet metal selection
MP 62x42x25 / N38

Table 5: Thermal resistance (material behavior) - power drop
MP 62x42x25 / N38

Table 6: Magnet-Magnet interaction (attraction) - field range
MP 62x42x25 / N38

Table 7: Hazards (electronics) - warnings
MP 62x42x25 / N38

Table 8: Collisions (kinetic energy) - collision effects
MP 62x42x25 / N38

Table 9: Anti-corrosion coating durability
MP 62x42x25 / N38

Table 10: Electrical data (Flux)
MP 62x42x25 / N38

Table 11: Hydrostatics and buoyancy
MP 62x42x25 / N38