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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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33.00 ZŁ with VAT / pcs + price for transport

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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

Technical analysis of the assembly - technical parameters

Presented data are the result of a engineering simulation. Results rely on models for the material Nd₂Fe₁₄B. Real-world parameters might slightly differ. Use these calculations as a preliminary roadmap during assembly planning.

Table 1: Static pull force (pull 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 lbs 10360.0 g / 101.6 N	dangerous!
1 mm	5288 Gs 528.8 mT	8.87 kg / 19.55 lbs 8865.5 g / 87.0 N	warning
2 mm	4861 Gs 486.1 mT	7.49 kg / 16.51 lbs 7491.0 g / 73.5 N	warning
3 mm	4446 Gs 444.6 mT	6.27 kg / 13.82 lbs 6267.5 g / 61.5 N	warning
5 mm	3677 Gs 367.7 mT	4.29 kg / 9.45 lbs 4285.9 g / 42.0 N	warning
10 mm	2216 Gs 221.6 mT	1.56 kg / 3.43 lbs 1557.1 g / 15.3 N	weak grip
15 mm	1354 Gs 135.4 mT	0.58 kg / 1.28 lbs 580.9 g / 5.7 N	weak grip
20 mm	864 Gs 86.4 mT	0.24 kg / 0.52 lbs 236.9 g / 2.3 N	weak grip
30 mm	405 Gs 40.5 mT	0.05 kg / 0.11 lbs 52.1 g / 0.5 N	weak grip
50 mm	133 Gs 13.3 mT	0.01 kg / 0.01 lbs 5.6 g / 0.1 N	weak grip

Grip strength drops drastically with every mm of gap. Keep in mind that even the smallest gap (e.g., dirt, varnish, dust) significantly diminishes the holding power. Magnetic products work strongest during direct contact; air break nullifies the power. Notice how quickly the load capacity plummet, when the product does not adhere tightly to the steel surface. When planning the assembly, eliminate additional spacers.

Table 2: Shear hold (vertical surface)
MP 20x5x27 / N38

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

This section calculates the theoretical holding capacity sufficient to cause the downward movement of the magnet down on a vertical steel wall (assuming typical friction). This parameter is a function of the distance between the magnet and the surface.

Table 3: Vertical assembly (sliding) - vertical pull
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 lbs 3108.0 g / 30.5 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	2.07 kg / 4.57 lbs 2072.0 g / 20.3 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	1.04 kg / 2.28 lbs 1036.0 g / 10.2 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	5.18 kg / 11.42 lbs 5180.0 g / 50.8 N

When placing a holder on a upright plane (e.g., a board), it you can count on just approx. 1/5 of its nominal power. Gravity as well as a low friction coefficient mean that magnets slide down faster than they detach. Want to create a wall mount? Consider that the shear force is significantly lower than the perpendicular breakaway force. On a slippery surface, the holder will give way down under a much lighter cargo. Utilizing a rubberized layer can drastically increase the grip.

Table 4: Steel thickness (saturation) - 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 lbs 518.0 g / 5.1 N
1 mm	13%	1.30 kg / 2.85 lbs 1295.0 g / 12.7 N
2 mm	25%	2.59 kg / 5.71 lbs 2590.0 g / 25.4 N
3 mm	38%	3.89 kg / 8.56 lbs 3885.0 g / 38.1 N
5 mm	63%	6.48 kg / 14.27 lbs 6475.0 g / 63.5 N
10 mm	100%	10.36 kg / 22.84 lbs 10360.0 g / 101.6 N
11 mm	100%	10.36 kg / 22.84 lbs 10360.0 g / 101.6 N
12 mm	100%	10.36 kg / 22.84 lbs 10360.0 g / 101.6 N

A thin metal plate cannot take in the entire magnetic field, which squanders power of the magnet. If you mount a strong magnet to a too thin substrate, the flux will pass right through and the holding will be smaller. To squeeze full efficiency of this magnet's potential, you require a sufficiently solid piece of steel. The material oversaturation means that on delicate walls (e.g., appliance housings), the magnet works worse. We recommend selecting the steel cross-section according to the table below.

Table 5: Thermal stability (stability) - resistance threshold
MP 20x5x27 / N38

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

Ordinary NdFeB products irreversibly lose power after exceeding the maximum temperature. Avoid high temperatures – heat can permanently destroy this product. As the temperature rises, the magnet's power temporarily drops. Refrain from using this product close to ovens higher than its operating temperature limit. Too high temperature will cause permanent loss of magnetic properties.

*Engineering note: Thermal stability depends not only on the material grade, as well as the dimension ratios. Thin magnets (low permeance coefficient) risk losing magnetic properties at lower temperatures than taller cylinders. Red status in the table signals a risk of irreversible loss for this particular item.

Table 6: Two magnets (repulsion) - forces in the system
MP 20x5x27 / N38

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

Two strong neodymiums interact from a significantly greater distance than a neodymium and metal setup. Such a system of magnet-to-magnet produces a massive flux and a wider radius of performance. Planning to create a powerful holder? Utilize two neodymiums instead of one magnet and a striker plate. Exercise caution that when attracting two neodymiums, the pinch force is huge. The levitation is slightly lower than the attraction, but still large.
*Field value in repulsion mode reaches ~0 Gs at the midpoint of the gap (resulting from vector opposition).
Note: Figures show friction force of dual matching magnets (friction ~0.15 for Ni-Ni coating).

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
Timepiece	20 Gs (2.0 mT)	11.0 cm
Phone / Smartphone	40 Gs (4.0 mT)	8.5 cm
Remote	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

Extremely neodym field is a large risk to electronics and medical implants. These NdFeB products produce a flux that destroys function of digital equipment. Notice: the unseen radiation penetrates the body and housings. Increased vigilance must be taken by people with cochlear implants and insulin pumps. Influence will be felt by: mechanical watches, remotes, speakers, and displays. Avoid contact with magnetic cards, HDD media, or precise measuring instruments.

Table 8: Collisions (kinetic energy) - collision effects
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

Neodymium magnets are prone to chipping – a collision with steel risks their cracking. Watch the impact speed – a magnet released freely speeds with massive force. Kinetic force can trigger coating fragments or dangerous crushing to fingers. Hold the magnet firmly during bringing near metal so it doesn't hit violently against the steel surface. A collision at high speed ends with a crack of the neodymium. Use safety goggles when handling with large magnets.

Table 9: Anti-corrosion coating durability
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)

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 (P_c)
MP 20x5x27 / N38

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

Flux value passing through the magnet pole. Essential parameter for generator designers and motors. P_c value defines the working geometry.

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%

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

The magnetic field penetrates through water without any losses. As a result, your magnet will pull a heavier object from the bottom than if you lifted it in the air.

1. Vertical hold

*Warning: On a vertical wall, the magnet holds just ~20% of its max power.

2. Steel saturation

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

3. Temperature resistance

*For N38 grade, the critical limit 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 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: 030185-2026

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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. It is also often used in advertising for fixing signs and in workshops for organizing tools.

This material behaves more like porcelain than steel, so it doesn't forgive mistakes during mounting. When tightening the screw, you must maintain great sensitivity. We recommend tightening manually with a screwdriver, not an impact driver, because too much pressure will cause the ring to crack. It's a good idea to use a rubber spacer under the screw head, which will cushion the stresses. 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. 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. 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 pulling force of this model is an impressive 10.36 kg, which translates to 101.60 N in newtons. 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. If you want two such magnets screwed with cones facing each other (faces) to attract, you must connect them with opposite poles (N to S). When ordering a larger quantity, magnets are usually packed in stacks, where they are already naturally paired.

Pros and cons of neodymium magnets.

Advantages

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

They have stable power, and over nearly ten years their performance decreases symbolically – ~1% (in testing),
They are extremely resistant to demagnetization induced by presence of other magnetic fields,
The use of an elegant coating of noble metals (nickel, gold, silver) causes the element to be more visually attractive,
The surface of neodymium magnets generates a intense magnetic field – this is a key feature,
Neodymium magnets are characterized by very high magnetic induction on the magnet surface and can function (depending on the form) even at a temperature of 230°C or more...
Due to the potential of free forming and customization to custom projects, magnetic components can be modeled in a wide range of forms and dimensions, which expands the range of possible applications,
Key role in electronics industry – they are used in magnetic memories, electric drive systems, medical devices, and other advanced devices.
Thanks to concentrated force, small magnets offer high operating force, occupying minimum space,

Weaknesses

Disadvantages of NdFeB magnets:

They are prone to damage upon heavy impacts. To avoid cracks, it is worth securing magnets using a steel holder. Such protection not only protects the magnet but also increases its resistance to damage
Neodymium magnets lose force when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop of power (a factor is the shape as well as 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
Due to the susceptibility of magnets to corrosion in a humid environment, we suggest using waterproof magnets made of rubber, plastic or other material resistant to moisture, when using outdoors
We suggest casing - magnetic holder, due to difficulties in creating nuts inside the magnet and complicated shapes.
Health risk to health – tiny shards of magnets are risky, when accidentally swallowed, which gains importance in the context of child safety. It is also worth noting that small elements of these devices are able to disrupt the diagnostic process medical in case of swallowing.
With budget limitations the cost of neodymium magnets is economically unviable,

Holding force characteristics

Optimal lifting capacity of a neodymium magnet – what affects it?

The force parameter is a theoretical maximum value executed under specific, ideal conditions:

on a block made of structural steel, perfectly concentrating the magnetic flux
possessing a massiveness of min. 10 mm to avoid saturation
with an ideally smooth touching surface
with direct contact (no coatings)
under axial force vector (90-degree angle)
at standard ambient temperature

Lifting capacity in practice – influencing factors

Please note that the application force will differ subject to elements below, starting with the most relevant:

Space between magnet and steel – even a fraction of a millimeter of distance (caused e.g. by veneer or dirt) drastically reduces the magnet efficiency, often by half at just 0.5 mm.
Force direction – declared lifting capacity refers to pulling vertically. When slipping, the magnet holds much less (often approx. 20-30% of maximum force).
Wall thickness – thin material does not allow full use of the magnet. Magnetic flux passes through the material instead of generating force.
Material composition – not every steel reacts the same. Alloy additives weaken the attraction effect.
Surface condition – ground elements guarantee perfect abutment, which increases field saturation. Uneven metal reduce efficiency.
Temperature influence – high temperature reduces pulling force. Too high temperature can permanently damage the magnet.

Lifting capacity testing was performed on a smooth plate of optimal thickness, under perpendicular forces, however under attempts to slide the magnet the holding force is lower. Moreover, even a small distance between the magnet and the plate decreases the load capacity.

Precautions when working with NdFeB magnets

Medical implants

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

Eye protection

Protect your eyes. Magnets can fracture upon uncontrolled impact, launching sharp fragments into the air. Eye protection is mandatory.

Do not overheat magnets

Avoid heat. Neodymium magnets are susceptible to temperature. If you need resistance above 80°C, ask us about HT versions (H, SH, UH).

Swallowing risk

NdFeB magnets are not intended for children. Accidental ingestion of multiple magnets can lead to them pinching intestinal walls, which poses a direct threat to life and requires urgent medical intervention.

Electronic hazard

Do not bring magnets near a purse, computer, or TV. The magnetic field can irreversibly ruin these devices and erase data from cards.

Mechanical processing

Dust generated during cutting of magnets is self-igniting. Do not drill into magnets without proper cooling and knowledge.

Nickel allergy

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

Threat to navigation

An intense magnetic field interferes with the functioning of compasses in phones and navigation systems. Maintain magnets close to a device to avoid breaking the sensors.

Finger safety

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

Conscious usage

Be careful. Rare earth magnets act from a long distance and connect with huge force, often quicker than you can react.

Attention! Learn more about hazards 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

Technical analysis of the assembly - technical parameters

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

Table 2: Shear hold (vertical surface) MP 20x5x27 / N38

Table 3: Vertical assembly (sliding) - vertical pull MP 20x5x27 / N38

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

Table 5: Thermal stability (stability) - resistance threshold MP 20x5x27 / N38

Table 6: Two magnets (repulsion) - forces in the system MP 20x5x27 / N38

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

Table 8: Collisions (kinetic energy) - collision effects MP 20x5x27 / N38

Table 9: Anti-corrosion coating durability MP 20x5x27 / N38

Table 10: Electrical data (Pc) MP 20x5x27 / N38

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

1. Vertical hold

2. Steel saturation

3. Temperature resistance

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

Chemical composition

Sustainability

Pulling force

Magnetic Field

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Pros and cons of neodymium magnets.

Advantages

Weaknesses

Holding force characteristics

Optimal lifting capacity of a neodymium magnet – what affects it?

Lifting capacity in practice – influencing factors

Precautions when working with NdFeB magnets

Medical implants

Eye protection

Do not overheat magnets

Swallowing risk

Electronic hazard

Mechanical processing

Nickel allergy

Threat to navigation

Finger safety

Conscious usage

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

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

Table 2: Shear hold (vertical surface)
MP 20x5x27 / N38

Table 3: Vertical assembly (sliding) - vertical pull
MP 20x5x27 / N38

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

Table 5: Thermal stability (stability) - resistance threshold
MP 20x5x27 / N38

Table 6: Two magnets (repulsion) - forces in the system
MP 20x5x27 / N38

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

Table 8: Collisions (kinetic energy) - collision effects
MP 20x5x27 / N38

Table 9: Anti-corrosion coating durability
MP 20x5x27 / N38

Table 10: Electrical data (P_c)
MP 20x5x27 / N38

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