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MP 62x42x25 / N38 - ring magnet

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

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165.00 ZŁ with VAT / pcs + price for transport

134.15 ZŁ net + 23% VAT / pcs

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Physical properties - 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

Engineering analysis of the product - report

The following data constitute the result of a mathematical simulation. Values rely on algorithms for the class Nd₂Fe₁₄B. Actual parameters might slightly differ. Use these data as a preliminary roadmap when designing systems.

Table 1: Static force (force 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 pounds 58670.0 g / 575.6 N	dangerous!
1 mm	4338 Gs 433.8 mT	55.21 kg / 121.72 pounds 55213.2 g / 541.6 N	dangerous!
2 mm	4201 Gs 420.1 mT	51.77 kg / 114.13 pounds 51768.5 g / 507.8 N	dangerous!
3 mm	4061 Gs 406.1 mT	48.39 kg / 106.69 pounds 48394.9 g / 474.8 N	dangerous!
5 mm	3781 Gs 378.1 mT	41.94 kg / 92.47 pounds 41942.4 g / 411.5 N	dangerous!
10 mm	3097 Gs 309.7 mT	28.15 kg / 62.06 pounds 28148.0 g / 276.1 N	dangerous!
15 mm	2485 Gs 248.5 mT	18.12 kg / 39.94 pounds 18118.5 g / 177.7 N	dangerous!
20 mm	1972 Gs 197.2 mT	11.41 kg / 25.16 pounds 11412.7 g / 112.0 N	dangerous!
30 mm	1239 Gs 123.9 mT	4.51 kg / 9.93 pounds 4505.2 g / 44.2 N	warning
50 mm	533 Gs 53.3 mT	0.83 kg / 1.84 pounds 832.4 g / 8.2 N	safe

Pulling power decreases sharply with every mm of spacing. Remember that even the smallest gap (e.g., contamination, paint, veneer) significantly weakens the grip. Magnets work strongest in perfect adhesion; air break kills the force. Observe how flashily the load capacity plummet, when the magnet does not touch directly to the steel surface. When designing the assembly, avoid additional spacers.

Table 2: Slippage hold (wall)
MP 62x42x25 / N38

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

This section defines the approximate weight limit necessary to cause the slippage of the magnet vertically against a upright steel plate (considering standard friction coefficient). The holding force is relative to the air gap between the magnet and the surface.

Table 3: Wall mounting (sliding) - 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 pounds 17601.0 g / 172.7 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	11.73 kg / 25.87 pounds 11734.0 g / 115.1 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	5.87 kg / 12.93 pounds 5867.0 g / 57.6 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	29.34 kg / 64.67 pounds 29335.0 g / 287.8 N

When mounting a element on a upright plane (e.g., a fridge), it will only hold just about 1/5 of nominal attraction strength. Gravity and a low friction coefficient mean that magnets slide down easier than they detach. Planning a hanger? Remember that the sliding force is much weaker than the perpendicular breakaway force. On a painted metal, the element will slip down under a noticeably lighter cargo. Utilizing a rubberized layer can significantly raise the stability.

Table 4: Material efficiency (saturation) - power losses
MP 62x42x25 / N38

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

A thin metal plate cannot focus the entire magnetic field, which squanders power of the holder. Should you attach a powerful product to a weak sheet, the field will pass right through and the holding will be smaller. To squeeze the maximum of this neodymium's potential, you require a sufficiently solid piece of metal. The material oversaturation means that on delicate walls (e.g., thin profiles), the holder shows lower pull force. We advise picking the steel thickness based on the following data.

Table 5: Thermal resistance (stability) - 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 pounds 58670.0 g / 575.6 N	OK
40 °C	-2.2%	57.38 kg / 126.50 pounds 57379.3 g / 562.9 N	OK
60 °C	-4.4%	56.09 kg / 123.65 pounds 56088.5 g / 550.2 N	OK
80 °C	-6.6%	54.80 kg / 120.81 pounds 54797.8 g / 537.6 N
100 °C	-28.8%	41.77 kg / 92.09 pounds 41773.0 g / 409.8 N

Ordinary NdFeB products lose strength past the thermal threshold. Watch out for overheating – high temperature can permanently damage this magnet. With increasing heat, the neodymium's capacity briefly lowers. Refrain from using this product near heat sources higher than its working range. Ignoring the limit will lead to destruction of magnetic properties.

*Engineering note: Temperature resistance depends not only on the material grade, but also on the magnet's shape. Thin magnets (pancake types) risk losing magnetic properties sooner compared to rod magnets. The danger warning in the table signals permanent field degradation for this specific geometry.

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

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

Two magnets interact from a significantly greater distance than a magnet and sheet setup. The setup of two magnets generates a stronger field and a wider radius of action. Want to build a strong closure? Use a pair of magnets instead of a neodymium and a striker plate. Exercise caution that when bringing together two magnets, the pinch force is huge. The levitation is marginally weaker than the attraction, but still large.
*Flux density for N-N configuration is approximately ~0 Gs in the exact middle of the gap (caused by magnetic field nullification).
* Figures refer to friction force of a pair of matching magnets (friction coefficient ~0.15 for Ni-Ni plating).

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
Timepiece	20 Gs (2.0 mT)	20.0 cm
Phone / Smartphone	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

Powerful magnet radiation is a serious hazard to electronic devices and pacemakers. These neodymiums generate a flux that prevents correct functioning of sensitive medical devices. Be aware: the invisible magnetic field penetrates the body and housings. Special caution must be exercised by people with hearing aids and drug dispensers. The risk also applies to: automatic timepieces, car keys, membranes, and screens. Avoid contact with magnetic cards, hard drives, or sensitive navigation tools.

Table 8: Impact energy (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

NdFeB products are very brittle – a collision with steel causes immediate chipping. Watch the impact speed – a magnet released freely turns into a projectile. Kinetic force can cause material chips or injury to skin. Be sure to control the product during bringing near metal so it doesn't hit with great force against the steel surface. A collision at high speed means shattering of the magnet. Wear safety glasses when working with large magnets.

Table 9: Surface protection spec
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)

For outdoor applications, an epoxy coating is required; standard nickel is intended for indoor use. The silver nickel coating also serves an aesthetic function but is not fully waterproof.

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

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

Total magnetic flux emitted by the magnet pole. Essential parameter in coil applications and motors. The P_c coefficient defines the magnet's operating point.

Table 11: Submerged application
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: Remember to wipe the magnet thoroughly after removing it from water and apply a protective layer (e.g., oil) to avoid corrosion.

In water, the magnet feels stronger thanks to Archimedes' principle. Note: for permanent underwater work, we recommend magnets with an anti-corrosive (epoxy) coating.

1. Wall mount (shear)

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

2. Steel thickness impact

*Thin metal sheet (e.g. computer case) severely limits the holding force.

3. Power loss vs temp

*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) = 0.64

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

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%

Environmental data

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: 030205-2026

Measurement Calculator

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It is ideally suited for places where solid attachment of the magnet to the substrate is required without the risk of detachment. Mounting is clean and reversible, unlike gluing. This product with a force of 58.67 kg works great as a door latch, speaker holder, or mounting element in devices.

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.

These magnets are coated with standard Ni-Cu-Ni plating, which protects them in indoor conditions, but is not sufficient for rain. In the place of the mounting hole, the coating is thinner and can be damaged when tightening the screw, which will become a corrosion focus. If you must use it outside, paint it with anti-corrosion paint after mounting.

A screw or bolt with a thread diameter smaller than 42 mm fits this model. 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.

The presented product is a ring magnet with dimensions Ø62 mm (outer diameter) and height 25 mm. The pulling force of this model is an impressive 58.67 kg, which translates to 575.60 N in newtons. 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. We do not offer paired sets with marked poles in this category, but they are easy to match manually.

Pros as well as cons of neodymium magnets.

Advantages

In addition to their magnetic capacity, neodymium magnets provide the following advantages:

They virtually do not lose strength, because even after ten years the decline in efficiency is only ~1% (in laboratory conditions),
They are resistant to demagnetization induced by presence of other magnetic fields,
By using a smooth coating of nickel, the element gains an modern look,
Magnets have excellent magnetic induction on the surface,
Due to their durability and thermal resistance, neodymium magnets are capable of operate (depending on the shape) even at high temperatures reaching 230°C or more...
Possibility of precise shaping and adapting to specific needs,
Universal use in electronics industry – they are utilized in computer drives, electric drive systems, diagnostic systems, as well as complex engineering applications.
Compactness – despite small sizes they generate large force, making them ideal for precision applications

Limitations

Disadvantages of neodymium magnets:

They are prone to damage upon heavy impacts. To avoid cracks, it is worth protecting magnets in special housings. Such protection not only shields the magnet but also increases its resistance to damage
When exposed to high temperature, neodymium magnets suffer a drop in power. 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
When exposed to humidity, magnets start to rust. For applications outside, it is recommended to use protective magnets, such as those in rubber or plastics, which secure oxidation as well as corrosion.
Due to limitations in creating nuts and complex shapes in magnets, we propose using cover - magnetic holder.
Potential hazard to health – tiny shards of magnets are risky, when accidentally swallowed, which is particularly important in the aspect of protecting the youngest. Additionally, small components of these magnets are able to complicate diagnosis medical after entering the body.
High unit price – neodymium magnets are more expensive than other types of magnets (e.g. ferrite), which can limit application in large quantities

Lifting parameters

Optimal lifting capacity of a neodymium magnet – what it depends on?

Magnet power is the result of a measurement for the most favorable conditions, taking into account:

with the contact of a yoke made of low-carbon steel, guaranteeing full magnetic saturation
possessing a massiveness of minimum 10 mm to avoid saturation
characterized by lack of roughness
under conditions of gap-free contact (surface-to-surface)
under vertical force vector (90-degree angle)
in temp. approx. 20°C

Lifting capacity in practice – influencing factors

In real-world applications, the actual holding force is determined by many variables, presented from the most important:

Space between magnet and steel – even a fraction of a millimeter of separation (caused e.g. by veneer or unevenness) drastically reduces the pulling force, often by half at just 0.5 mm.
Loading method – catalog parameter refers to pulling vertically. When applying parallel force, the magnet holds much less (often approx. 20-30% of maximum force).
Element thickness – for full efficiency, the steel must be adequately massive. Thin sheet limits the attraction force (the magnet "punches through" it).
Material composition – not every steel reacts the same. High carbon content worsen the interaction with the magnet.
Smoothness – ideal contact is obtained only on smooth steel. Rough texture reduce the real contact area, reducing force.
Operating temperature – NdFeB sinters have a sensitivity to temperature. At higher temperatures they lose power, and at low temperatures gain strength (up to a certain limit).

Holding force was checked on a smooth steel plate of 20 mm thickness, when a perpendicular force was applied, however under parallel forces the load capacity is reduced by as much as 5 times. In addition, even a small distance between the magnet’s surface and the plate decreases the lifting capacity.

Warnings

Skin irritation risks

A percentage of the population experience a hypersensitivity to Ni, which is the standard coating for NdFeB magnets. Prolonged contact might lead to skin redness. We suggest wear safety gloves.

Threat to navigation

A powerful magnetic field disrupts the functioning of compasses in smartphones and GPS navigation. Do not bring magnets close to a device to avoid breaking the sensors.

Magnets are brittle

Neodymium magnets are ceramic materials, which means they are very brittle. Clashing of two magnets leads to them breaking into shards.

Medical implants

Individuals with a heart stimulator have to keep an large gap from magnets. The magnetism can disrupt the operation of the implant.

Powerful field

Before starting, read the rules. Uncontrolled attraction can break the magnet or hurt your hand. Think ahead.

Cards and drives

Data protection: Strong magnets can damage data carriers and delicate electronics (pacemakers, hearing aids, timepieces).

Dust explosion hazard

Mechanical processing of NdFeB material carries a risk of fire risk. Magnetic powder reacts violently with oxygen and is difficult to extinguish.

Demagnetization risk

Do not overheat. NdFeB magnets are susceptible to heat. If you need resistance above 80°C, ask us about special high-temperature series (H, SH, UH).

No play value

Only for adults. Small elements can be swallowed, causing severe trauma. Keep out of reach of children and animals.

Physical harm

Mind your fingers. Two powerful magnets will snap together instantly with a force of several hundred kilograms, crushing everything in their path. Be careful!

Caution! Want to know more? Check our post: Are neodymium magnets dangerous?

MP 62x42x25 / N38 - ring magnet

Physical properties - MP 62x42x25 / N38 - ring magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Engineering analysis of the product - report

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

Table 2: Slippage hold (wall) MP 62x42x25 / N38

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

Table 4: Material efficiency (saturation) - power losses MP 62x42x25 / N38

Table 5: Thermal resistance (stability) - 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: Impact energy (kinetic energy) - collision effects MP 62x42x25 / N38

Table 9: Surface protection spec MP 62x42x25 / N38

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

Table 11: Submerged application MP 62x42x25 / N38

1. Wall mount (shear)

2. Steel thickness impact

3. Power loss vs temp

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

Elemental analysis

Environmental data

Force (pull)

Magnetic Field

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Pros as well as cons of neodymium magnets.

Advantages

Limitations

Lifting parameters

Optimal lifting capacity of a neodymium magnet – what it depends on?

Lifting capacity in practice – influencing factors

Warnings

Skin irritation risks

Threat to navigation

Magnets are brittle

Medical implants

Powerful field

Cards and drives

Dust explosion hazard

Demagnetization risk

No play value

Physical harm

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

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

Table 2: Slippage hold (wall)
MP 62x42x25 / N38

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

Table 4: Material efficiency (saturation) - power losses
MP 62x42x25 / N38

Table 5: Thermal resistance (stability) - 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: Impact energy (kinetic energy) - collision effects
MP 62x42x25 / N38

Table 9: Surface protection spec
MP 62x42x25 / N38

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

Table 11: Submerged application
MP 62x42x25 / N38