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MP 20x5x27 / 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 030185

GTIN/EAN: 5906301812029

5.00

Diameter

20 mm [±0,1 mm]

internal diameter Ø

5 mm [±0,1 mm]

Height

27 mm [±0,1 mm]

Weight

59.64 g

Magnetization Direction

↑ axial

Load capacity

10.36 kg / 101.60 N

Magnetic Induction

581.04 mT / 5810 Gs

Coating

[NiCuNi] Nickel

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Technical - MP 20x5x27 / N38 - ring magnet

Specification / characteristics - MP 20x5x27 / N38 - ring magnet

properties

properties	values
Cat. no.	030185
GTIN/EAN	5906301812029
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	20 mm [±0,1 mm]
internal diameter Ø	5 mm [±0,1 mm]
Height	27 mm [±0,1 mm]
Weight	59.64 g
Magnetization Direction	↑ axial
Load capacity ~ ?	10.36 kg / 101.60 N
Magnetic Induction ~ ?	581.04 mT / 5810 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MP 20x5x27 / 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 simulation of the product - data

These information represent the direct effect of a physical calculation. Values rely on algorithms for the class Nd₂Fe₁₄B. Real-world conditions may differ. Treat these data as a supplementary guide during assembly planning.

Table 1: Static force (force vs distance) - power drop
MP 20x5x27 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	5716 Gs 571.6 mT	10.36 kg / 22.84 pounds 10360.0 g / 101.6 N	crushing
1 mm	5288 Gs 528.8 mT	8.87 kg / 19.55 pounds 8865.5 g / 87.0 N	strong
2 mm	4861 Gs 486.1 mT	7.49 kg / 16.51 pounds 7491.0 g / 73.5 N	strong
3 mm	4446 Gs 444.6 mT	6.27 kg / 13.82 pounds 6267.5 g / 61.5 N	strong
5 mm	3677 Gs 367.7 mT	4.29 kg / 9.45 pounds 4285.9 g / 42.0 N	strong
10 mm	2216 Gs 221.6 mT	1.56 kg / 3.43 pounds 1557.1 g / 15.3 N	safe
15 mm	1354 Gs 135.4 mT	0.58 kg / 1.28 pounds 580.9 g / 5.7 N	safe
20 mm	864 Gs 86.4 mT	0.24 kg / 0.52 pounds 236.9 g / 2.3 N	safe
30 mm	405 Gs 40.5 mT	0.05 kg / 0.11 pounds 52.1 g / 0.5 N	safe
50 mm	133 Gs 13.3 mT	0.01 kg / 0.01 pounds 5.6 g / 0.1 N	safe

Magnetic force drops sharply with every mm of gap. Keep in mind that even a microscopic distance (e.g., dirt, paint, dust) significantly weakens the grip. Magnetic products work strongest in perfect adhesion; air break drastically cuts the force. Analyze how flashily the pull force drop, when the magnet does not touch flatly to the metal substrate. When planning the mounting, avoid additional spacers.

Table 2: Vertical hold (wall)
MP 20x5x27 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	2.07 kg / 4.57 pounds 2072.0 g / 20.3 N
1 mm	Stal (~0.2)	1.77 kg / 3.91 pounds 1774.0 g / 17.4 N
2 mm	Stal (~0.2)	1.50 kg / 3.30 pounds 1498.0 g / 14.7 N
3 mm	Stal (~0.2)	1.25 kg / 2.76 pounds 1254.0 g / 12.3 N
5 mm	Stal (~0.2)	0.86 kg / 1.89 pounds 858.0 g / 8.4 N
10 mm	Stal (~0.2)	0.31 kg / 0.69 pounds 312.0 g / 3.1 N
15 mm	Stal (~0.2)	0.12 kg / 0.26 pounds 116.0 g / 1.1 N
20 mm	Stal (~0.2)	0.05 kg / 0.11 pounds 48.0 g / 0.5 N
30 mm	Stal (~0.2)	0.01 kg / 0.02 pounds 10.0 g / 0.1 N
50 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 2.0 g / 0.0 N

The table below defines the approximate force necessary to cause the downward movement of the magnet vertically along a vertical steel wall (considering standard friction coefficient). This value is a function of the gap size between the magnet and the metal.

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces
MP 20x5x27 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	3.11 kg / 6.85 pounds 3108.0 g / 30.5 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	2.07 kg / 4.57 pounds 2072.0 g / 20.3 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	1.04 kg / 2.28 pounds 1036.0 g / 10.2 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	5.18 kg / 11.42 pounds 5180.0 g / 50.8 N

When mounting a magnet on a upright plane (e.g., a fridge), it will only hold barely approx. 20%-30% of its maximum pull force. Gravity as well as a low friction coefficient influence the fact that products move down easier than they pull off. Designing a vertical fastening? Remember that the shear force is noticeably lower than the maximum static pull force. On a slippery surface, the magnet will slip down under a much lighter weight. Using a rubber pad can significantly increase the grip.

Table 4: Steel thickness (substrate influence) - sheet metal selection
MP 20x5x27 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	5%	0.52 kg / 1.14 pounds 518.0 g / 5.1 N
1 mm	13%	1.30 kg / 2.85 pounds 1295.0 g / 12.7 N
2 mm	25%	2.59 kg / 5.71 pounds 2590.0 g / 25.4 N
3 mm	38%	3.89 kg / 8.56 pounds 3885.0 g / 38.1 N
5 mm	63%	6.48 kg / 14.27 pounds 6475.0 g / 63.5 N
10 mm	100%	10.36 kg / 22.84 pounds 10360.0 g / 101.6 N
11 mm	100%	10.36 kg / 22.84 pounds 10360.0 g / 101.6 N
12 mm	100%	10.36 kg / 22.84 pounds 10360.0 g / 101.6 N

A too thin steel is unable to absorb the full magnetic flux, which wastes potential of the magnet. Should you mount a strong magnet to a thin surface, the magnetism will pass right through and the pull force will drop sharply. To achieve full efficiency of this magnet's power, you need a suitably thick element of metal. The saturation phenomenon causes that on thin elements (e.g., appliance housings), the holder works worse. We suggest choosing the steel cross-section from these parameters.

Table 5: Thermal stability (stability) - power drop
MP 20x5x27 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	10.36 kg / 22.84 pounds 10360.0 g / 101.6 N	OK
40 °C	-2.2%	10.13 kg / 22.34 pounds 10132.1 g / 99.4 N	OK
60 °C	-4.4%	9.90 kg / 21.83 pounds 9904.2 g / 97.2 N	OK
80 °C	-6.6%	9.68 kg / 21.33 pounds 9676.2 g / 94.9 N
100 °C	-28.8%	7.38 kg / 16.26 pounds 7376.3 g / 72.4 N

Classic neodymiums change their properties strength past the thermal threshold. Protect against heat – excessive heat can irreversibly damage this product. As the temperature rises, the neodymium's capacity briefly decreases. Do not use this magnet in hot environments higher than its operating temperature limit. Too high temperature will lead to irreversible degradation of magnetism.

*Engineering note: Temperature resistance is determined by both grade, as well as the dimension ratios. Flat magnets (pancake types) may lose charge permanently under lower heat stress than long magnets. Red status in the table indicates a risk of irreversible loss for this specific geometry.

Table 6: Magnet-Magnet interaction (repulsion) - field collision
MP 20x5x27 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Lateral Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	44.24 kg / 97.54 pounds 6 064 Gs	6.64 kg / 14.63 pounds 6636 g / 65.1 N	N/A
1 mm	41.02 kg / 90.43 pounds 11 008 Gs	6.15 kg / 13.56 pounds 6153 g / 60.4 N	36.92 kg / 81.39 pounds ~0 Gs
2 mm	37.86 kg / 83.47 pounds 10 576 Gs	5.68 kg / 12.52 pounds 5679 g / 55.7 N	34.07 kg / 75.12 pounds ~0 Gs
3 mm	34.85 kg / 76.83 pounds 10 146 Gs	5.23 kg / 11.52 pounds 5227 g / 51.3 N	31.36 kg / 69.14 pounds ~0 Gs
5 mm	29.30 kg / 64.58 pounds 9 303 Gs	4.39 kg / 9.69 pounds 4394 g / 43.1 N	26.37 kg / 58.13 pounds ~0 Gs
10 mm	18.30 kg / 40.35 pounds 7 353 Gs	2.75 kg / 6.05 pounds 2745 g / 26.9 N	16.47 kg / 36.32 pounds ~0 Gs
20 mm	6.65 kg / 14.66 pounds 4 432 Gs	1.00 kg / 2.20 pounds 997 g / 9.8 N	5.98 kg / 13.19 pounds ~0 Gs
50 mm	0.45 kg / 1.00 pounds 1 159 Gs	0.07 kg / 0.15 pounds 68 g / 0.7 N	0.41 kg / 0.90 pounds ~0 Gs
60 mm	0.22 kg / 0.49 pounds 811 Gs	0.03 kg / 0.07 pounds 33 g / 0.3 N	0.20 kg / 0.44 pounds ~0 Gs
70 mm	0.12 kg / 0.26 pounds 589 Gs	0.02 kg / 0.04 pounds 18 g / 0.2 N	0.11 kg / 0.23 pounds ~0 Gs
80 mm	0.07 kg / 0.14 pounds 440 Gs	0.01 kg / 0.02 pounds 10 g / 0.1 N	0.06 kg / 0.13 pounds ~0 Gs
90 mm	0.04 kg / 0.09 pounds 338 Gs	0.01 kg / 0.01 pounds 6 g / 0.1 N	0.03 kg / 0.08 pounds ~0 Gs
100 mm	0.02 kg / 0.05 pounds 265 Gs	0.00 kg / 0.01 pounds 4 g / 0.0 N	0.02 kg / 0.05 pounds ~0 Gs

Two magnetic products interact from a much further distance than a magnet and steel setup. The connection of two magnets creates a more powerful interaction and a further horizon of operation. Planning to create a powerful holder? Apply two magnets instead of a neodymium and a striker plate. Exercise caution that when attracting two neodymiums, the collision energy is massive. The levitation is slightly lower than the attraction, but still large.
*Field value for N-N configuration drops to ~0 Gs in the exact middle between the magnets (due to field cancellation).
Note: Estimates apply to shear force of two matching neodymium magnets (friction ~0.15 for Ni-Ni layer).

Table 7: Protective zones (implants) - warnings
MP 20x5x27 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	18.0 cm
Hearing aid	10 Gs (1.0 mT)	14.0 cm
Mechanical watch	20 Gs (2.0 mT)	11.0 cm
Phone / Smartphone	40 Gs (4.0 mT)	8.5 cm
Car key	50 Gs (5.0 mT)	7.5 cm
Payment card	400 Gs (40.0 mT)	3.5 cm
HDD hard drive	600 Gs (60.0 mT)	2.5 cm

Powerful magnet radiation is a real danger to IT equipment as well as medical implants. These NdFeB products produce a flux that disrupts operation of digital equipment. Notice: the unseen radiation acts through matter and plastic. Special caution must be exercised by people with cochlear implants and drug dispensers. Influence will be felt by: mechanical watches, remotes, speakers, and displays. Do not bring the product near payment cards, HDD media, or precise measuring instruments.

Table 8: Impact energy (kinetic energy) - warning
MP 20x5x27 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	14.49 km/h (4.02 m/s)	0.48 J
30 mm	23.09 km/h (6.42 m/s)	1.23 J
50 mm	29.73 km/h (8.26 m/s)	2.03 J
100 mm	42.03 km/h (11.68 m/s)	4.07 J

Magnetic elements are very brittle – a collision with steel can result in shattering. Pay attention to connection velocity – a neodymium left loose turns into a projectile. Striking energy can trigger coating fragments or dangerous crushing to fingers. Be sure to control the product during bringing near metal so it doesn't slam with momentum against the steel surface. A collision at high speed almost guarantees destruction of the magnet. Wear safety glasses when playing with large magnets.

Table 9: Corrosion resistance
MP 20x5x27 / 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: Construction data (Flux)
MP 20x5x27 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	14 314 Mx	143.1 µWb
P_c Coefficient	1.16	High (Stable)

Total magnetic flux emitted by the pole surface. Key data when building generators as well as sensors. P_c value defines the magnet's operating point.

Table 11: Physics of underwater searching
MP 20x5x27 / N38

Environment	Effective steel pull	Effect
Air (land)	10.36 kg	Standard
Water (riverbed)	11.86 kg (+1.50 kg buoyancy gain)	+14.5%

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

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

1. Vertical hold

*Caution: On a vertical surface, the magnet holds merely approx. 20-30% of its perpendicular strength.

2. Efficiency vs thickness

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

3. Thermal stability

*For standard magnets, the max working temp is 80°C.

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 1.16

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

Elemental analysis

iron (Fe)	64% – 68%
neodymium (Nd)	29% – 32%
boron (B)	1.1% – 1.2%
dysprosium (Dy)	0.5% – 2.0%
coating (Ni-Cu-Ni)	< 0.05%

Ecology and recycling (GPSR)

recyclability (EoL)	100%
recycled raw materials	~10% (pre-cons)
carbon footprint	low / zredukowany
waste code (EWC)	16 02 16

Safety card (GPSR)

responsible entity

Dhit sp. z o.o.

ul. Kościuszki 6A, 05-850 Ożarów Mazowiecki

tel: +48 22 499 98 98 | e-mail: bok@dhit.pl

batch number/type

id: 030185-2026

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The ring magnet with a hole MP 20x5x27 / N38 is created for permanent mounting, where glue might fail or be insufficient. Thanks to the hole (often for a screw), this model enables easy screwing to wood, wall, plastic, or metal. This product with a force of 10.36 kg works great as a cabinet closure, speaker holder, or mounting element in devices.

This is a crucial issue when working with model MP 20x5x27 / N38. Neodymium magnets are sintered ceramics, which means they are very brittle and inelastic. When tightening the screw, you must maintain great sensitivity. We recommend tightening manually with a screwdriver, not an impact driver, because excessive force will cause the ring to crack. 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 does not ensure full waterproofing. 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. This product is dedicated for inside building use. For outdoor applications, we recommend choosing magnets in hermetic housing or additional protection with varnish.

A screw or bolt with a thread diameter smaller than 5 mm fits this model. If the magnet does not have a chamfer (cone), we recommend using a screw with a flat or cylindrical head, or possibly using a washer. Always check that the screw head is not larger than the outer diameter of the magnet (20 mm), so it doesn't protrude beyond the outline.

This model is characterized by dimensions Ø20x27 mm and a weight of 59.64 g. The key parameter here is the lifting capacity amounting to approximately 10.36 kg (force ~101.60 N). The product has a [NiCuNi] coating and is made of NdFeB material. Inner hole dimension: 5 mm.

The poles are located on the planes with holes, not on the sides of the ring. 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 and cons of Nd₂Fe₁₄B magnets.

Benefits

Besides their magnetic performance, neodymium magnets are valued for these benefits:

They do not lose magnetism, even over approximately ten years – the decrease in power is only ~1% (based on measurements),
Neodymium magnets are distinguished by exceptionally resistant to magnetic field loss caused by external magnetic fields,
The use of an refined layer of noble metals (nickel, gold, silver) causes the element to be more visually attractive,
Neodymium magnets achieve maximum magnetic induction on a small surface, which allows for strong attraction,
Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and can function (depending on the shape) even at a temperature of 230°C or more...
Possibility of precise creating as well as adjusting to atypical needs,
Fundamental importance in electronics industry – they serve a role in HDD drives, motor assemblies, medical devices, and complex engineering applications.
Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in tiny dimensions, which allows their use in compact constructions

Cons

What to avoid - cons of neodymium magnets: application proposals

At very strong impacts they can break, therefore we recommend placing them in steel cases. A metal housing provides additional protection against damage and increases the magnet's durability.
We warn that neodymium magnets can reduce their power at high temperatures. To prevent this, we suggest our specialized [AH] magnets, which work effectively even at 230°C.
Magnets exposed to a humid environment can rust. Therefore while using outdoors, we advise using water-impermeable magnets made of rubber, plastic or other material resistant to moisture
Due to limitations in realizing nuts and complex forms in magnets, we propose using a housing - magnetic mount.
Possible danger resulting from small fragments of magnets can be dangerous, in case of ingestion, which gains importance in the context of child safety. It is also worth noting that small components of these magnets are able to disrupt the diagnostic process medical when they are in the body.
Higher cost of purchase is one of the disadvantages compared to ceramic magnets, especially in budget applications

Holding force characteristics

Maximum lifting capacity of the magnet – what affects it?

The specified lifting capacity concerns the peak performance, recorded under ideal test conditions, namely:

on a block made of structural steel, effectively closing the magnetic flux
whose thickness equals approx. 10 mm
with a surface free of scratches
under conditions of gap-free contact (metal-to-metal)
during detachment in a direction perpendicular to the plane
in stable room temperature

Practical aspects of lifting capacity – factors

In practice, the actual lifting capacity is determined by many variables, presented from most significant:

Distance (between the magnet and the plate), since even a very small clearance (e.g. 0.5 mm) leads to a drastic drop in force by up to 50% (this also applies to varnish, corrosion or debris).
Loading method – catalog parameter refers to pulling vertically. When attempting to slide, the magnet holds much less (often approx. 20-30% of maximum force).
Steel thickness – too thin steel causes magnetic saturation, causing part of the flux to be wasted to the other side.
Chemical composition of the base – low-carbon steel attracts best. Alloy steels reduce magnetic properties and lifting capacity.
Surface condition – smooth surfaces ensure maximum contact, which improves field saturation. Uneven metal reduce efficiency.
Heat – neodymium magnets have a negative temperature coefficient. When it is hot they lose power, and at low temperatures they can be stronger (up to a certain limit).

Holding force was tested on the plate surface of 20 mm thickness, when the force acted perpendicularly, whereas under attempts to slide the magnet the lifting capacity is smaller. Additionally, even a minimal clearance between the magnet and the plate decreases the holding force.

H&S for magnets

Power loss in heat

Regular neodymium magnets (N-type) lose magnetization when the temperature goes above 80°C. The loss of strength is permanent.

ICD Warning

Warning for patients: Strong magnetic fields affect electronics. Maintain minimum 30 cm distance or ask another person to handle the magnets.

Crushing risk

Risk of injury: The pulling power is so great that it can result in blood blisters, crushing, and even bone fractures. Use thick gloves.

Conscious usage

Handle magnets consciously. Their powerful strength can shock even experienced users. Plan your moves and respect their force.

Data carriers

Avoid bringing magnets near a purse, laptop, or TV. The magnetic field can permanently damage these devices and wipe information from cards.

Nickel allergy

Nickel alert: The nickel-copper-nickel coating contains nickel. If an allergic reaction occurs, cease handling magnets and use protective gear.

Dust is flammable

Fire warning: Rare earth powder is explosive. Avoid machining magnets without safety gear as this may cause fire.

Material brittleness

Despite the nickel coating, neodymium is brittle and not impact-resistant. Do not hit, as the magnet may shatter into sharp, dangerous pieces.

Do not give to children

NdFeB magnets are not suitable for play. Swallowing a few magnets can lead to them attracting across intestines, which constitutes a critical condition and requires immediate surgery.

Precision electronics

GPS units and smartphones are highly sensitive to magnetic fields. Direct contact with a strong magnet can decalibrate the sensors in your phone.

Warning! Details about risks in the article: Safety of working with magnets.

MP 20x5x27 / N38 - ring magnet

Technical - MP 20x5x27 / N38 - ring magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Engineering simulation of the product - data

Table 1: Static force (force vs distance) - power drop MP 20x5x27 / N38

Table 2: Vertical hold (wall) MP 20x5x27 / N38

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces MP 20x5x27 / N38

Table 4: Steel thickness (substrate influence) - sheet metal selection MP 20x5x27 / N38

Table 5: Thermal stability (stability) - power drop MP 20x5x27 / N38

Table 6: Magnet-Magnet interaction (repulsion) - field collision MP 20x5x27 / N38

Table 7: Protective zones (implants) - warnings MP 20x5x27 / N38

Table 8: Impact energy (kinetic energy) - warning MP 20x5x27 / N38

Table 9: Corrosion resistance MP 20x5x27 / N38

Table 10: Construction data (Flux) MP 20x5x27 / N38

Table 11: Physics of underwater searching MP 20x5x27 / N38

1. Vertical hold

2. Efficiency vs thickness

3. Thermal stability

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

Elemental analysis

Ecology and recycling (GPSR)

Magnet pull force

Magnetic Induction

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Pros and cons of Nd2Fe14B magnets.

Benefits

Cons

Holding force characteristics

Maximum lifting capacity of the magnet – what affects it?

Practical aspects of lifting capacity – factors

H&S for magnets

Power loss in heat

ICD Warning

Crushing risk

Conscious usage

Data carriers

Nickel allergy

Dust is flammable

Material brittleness

Do not give to children

Precision electronics

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (force vs distance) - power drop
MP 20x5x27 / N38

Table 2: Vertical hold (wall)
MP 20x5x27 / N38

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces
MP 20x5x27 / N38

Table 4: Steel thickness (substrate influence) - sheet metal selection
MP 20x5x27 / N38

Table 5: Thermal stability (stability) - power drop
MP 20x5x27 / N38

Table 6: Magnet-Magnet interaction (repulsion) - field collision
MP 20x5x27 / N38

Table 7: Protective zones (implants) - warnings
MP 20x5x27 / N38

Table 8: Impact energy (kinetic energy) - warning
MP 20x5x27 / N38

Table 9: Corrosion resistance
MP 20x5x27 / N38

Table 10: Construction data (Flux)
MP 20x5x27 / N38

Table 11: Physics of underwater searching
MP 20x5x27 / N38

Pros and cons of Nd₂Fe₁₄B magnets.