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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

technical details »

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Technical of the product - 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

Physical simulation of the magnet - report

Presented values are the direct effect of a engineering analysis. Results rely on models for the class Nd₂Fe₁₄B. Actual parameters may differ from theoretical values. Treat these data as a supplementary guide when designing systems.

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

Pulling power drops significantly with every mm of gap. Remember that even the smallest gap (e.g., contamination, varnish, dust) noticeably diminishes the holding power. Magnetic products operate optimally at the point of direct contact; gap drastically cuts the force. Observe how quickly the parameters fall, when the product does not touch directly to the metal substrate. When designing the assembly, discard additional spacers.

Table 2: Shear force (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

The following data calculates the theoretical force required to cause the slippage of the magnet vertically along a vertical metal surface (assuming typical friction). The holding force is relative to the distance between the magnet and the surface.

Table 3: Wall mounting (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 hanging a holder on a vertical surface (e.g., a car body), it will only hold only about 20%-30% of its maximum pull force. Gravity as well as a low friction coefficient cause that magnets slide down easier than they pop off the substrate. Want to create a vertical fastening? Note that the sliding force is significantly lower than the perpendicular breakaway force. On a smooth steel, the holder will slip down under a much lighter cargo. Using a rubber layer can drastically raise the stability.

Table 4: Steel thickness (saturation) - power losses
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 too thin steel is incapable of conduct the full magnetic flux, which weakens actual performance of the holder. Should you attach a powerful product to a thin surface, the magnetism will penetrate right through and the pull force will drop sharply. To achieve the maximum of this magnet's power, you need a suitably thick piece of steel. The saturation effect means that on sheet metal structures (e.g., thin profiles), the holder holds weaker. We recommend selecting the steel thickness from these parameters.

Table 5: Thermal resistance (material behavior) - 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 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

Standard neodymium magnets lose parameters after exceeding the maximum temperature. Watch out for overheating – high temperature can irreversibly damage this product. With increasing heat, the magnet's capacity temporarily decreases. Avoid using this product near heat sources higher than its operating temperature limit. Ignoring the limit will cause permanent loss of magnetism.

*Important note: Temperature resistance is determined by both grade, as well as the dimension ratios. Low-profile magnets (low permeance coefficient) may lose charge permanently under lower heat stress than long magnets. The danger warning in the table signals a risk of irreversible loss for this specific geometry.

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

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Force (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 magnetic products attract each other from a much further distance than a magnet and steel combination. The connection of magnet-to-magnet produces a massive flux and a further horizon of performance. Designing a powerful holder? Utilize two neodymiums instead of a neodymium and a steel. Be careful that when bringing together two magnets, the collision energy is massive. The repulsion force is a bit weaker than the connection force, but still impressive.
*Flux density in repulsion mode is approximately ~0 Gs at the geometric center between the magnets (due to field cancellation).
Important: Figures apply to shear force of a pair of same 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
Mobile device	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

A strong magnetic field is a serious hazard to IT equipment and pacemakers. These magnets produce a flux that disrupts operation of sensitive medical devices. Remember: the invisible magnetic field penetrates the body and housings. Special caution must be exercised by people with cochlear implants and insulin pumps. Also at risk are: mechanical watches, remotes, membranes, and displays. Do not place the magnet near cards, hard drives, or precise measuring instruments.

Table 8: Collisions (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

NdFeB products are delicate – a collision with steel risks their cracking. Watch the impact speed – a magnet released freely becomes dangerous. Kinetic force can trigger coating fragments or dangerous crushing to fingers. Hold the magnet firmly during mounting so it doesn't hit violently against the steel surface. A contact at a velocity of dozens of km/h means shattering of the neodymium. Wear eye protection when playing with large magnets.

Table 9: Surface protection spec
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. Improper coating selection is the most common cause of magnet failure over time.

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)

Flux value passing through the pole surface. Key data in coil applications as well as sensors. The P_c coefficient determines the magnet's operating point.

Table 11: Underwater work (magnet fishing)
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: 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. Buoyancy helps in lifting finds.

1. Shear force

*Note: On a vertical wall, the magnet holds merely ~20% of its perpendicular strength.

2. Steel thickness impact

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

3. Heat tolerance

*For N38 grade, 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

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

Magnet Unit Converter

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Kilograms (kg)

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Insert a value into any field, and the remaining units convert automatically.

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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 10.36 kg works great as a door latch, speaker holder, or mounting element in devices.

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 flexible washer under the screw head, which will cushion the stresses. 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. In the place of the mounting hole, the coating is thinner and easily scratched when tightening the screw, which will become a corrosion focus. 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. Aesthetic mounting requires selecting the appropriate head size.

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 mounting hole diameter is precisely 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.

Advantages as well as disadvantages of neodymium magnets.

Strengths

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

They virtually do not lose power, because even after ten years the decline in efficiency is only ~1% (according to literature),
They have excellent resistance to weakening of magnetic properties due to external fields,
The use of an shiny coating of noble metals (nickel, gold, silver) causes the element to present itself better,
Neodymium magnets deliver maximum magnetic induction on a contact point, which increases force concentration,
Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their form) at temperatures up to 230°C and above...
Due to the possibility of free molding and customization to specialized needs, magnetic components can be manufactured in a wide range of geometric configurations, which makes them more universal,
Key role in advanced technology sectors – they are utilized in magnetic memories, electric motors, advanced medical instruments, as well as industrial machines.
Relatively small size with high pulling force – neodymium magnets offer high power in tiny dimensions, which makes them useful in miniature devices

Disadvantages

What to avoid - cons of neodymium magnets and ways of using them

At very strong impacts they can crack, therefore we recommend placing them in strong housings. A metal housing provides additional protection against damage and increases the magnet's durability.
When exposed to high temperature, neodymium magnets suffer a drop in force. Often, when the temperature exceeds 80°C, their power 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 usually rust. For applications outside, it is recommended to use protective magnets, such as those in rubber or plastics, which prevent oxidation as well as corrosion.
We suggest a housing - magnetic mechanism, due to difficulties in creating threads inside the magnet and complicated shapes.
Potential hazard resulting from small fragments of magnets are risky, if swallowed, which gains importance in the context of child health protection. Furthermore, tiny parts of these products are able to be problematic in diagnostics medical in case of swallowing.
Due to expensive raw materials, their price is higher than average,

Pull force analysis

Maximum lifting force for a neodymium magnet – what contributes to it?

The specified lifting capacity represents the peak performance, measured under optimal environment, namely:

with the contact of a sheet made of low-carbon steel, guaranteeing maximum field concentration
whose transverse dimension reaches at least 10 mm
characterized by even structure
without any clearance between the magnet and steel
under vertical application of breakaway force (90-degree angle)
in neutral thermal conditions

Lifting capacity in practice – influencing factors

Bear in mind that the magnet holding may be lower subject to the following factors, in order of importance:

Air gap (between the magnet and the plate), because even a microscopic clearance (e.g. 0.5 mm) results in a drastic drop in force by up to 50% (this also applies to paint, corrosion or debris).
Force direction – remember that the magnet holds strongest perpendicularly. Under sliding down, the capacity drops drastically, often to levels of 20-30% of the maximum value.
Wall thickness – thin material does not allow full use of the magnet. Part of the magnetic field penetrates through instead of converting into lifting capacity.
Material type – the best choice is high-permeability steel. Hardened steels may generate lower lifting capacity.
Surface structure – the smoother and more polished the plate, the larger the contact zone and stronger the hold. Unevenness creates an air distance.
Thermal factor – high temperature weakens pulling force. Exceeding the limit temperature can permanently demagnetize the magnet.

Holding force was checked on the plate surface of 20 mm thickness, when the force acted perpendicularly, whereas under shearing force the holding force is lower. In addition, even a minimal clearance between the magnet’s surface and the plate lowers the lifting capacity.

Safe handling of neodymium magnets

Warning for allergy sufferers

Medical facts indicate that nickel (the usual finish) is a potent allergen. If you have an allergy, avoid touching magnets with bare hands and select encased magnets.

Immense force

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

Danger to the youngest

Product intended for adults. Small elements can be swallowed, leading to intestinal necrosis. Store out of reach of kids and pets.

Do not drill into magnets

Fire hazard: Rare earth powder is explosive. Do not process magnets in home conditions as this risks ignition.

Bodily injuries

Large magnets can break fingers in a fraction of a second. Under no circumstances put your hand between two attracting surfaces.

Fragile material

NdFeB magnets are sintered ceramics, meaning they are very brittle. Clashing of two magnets leads to them cracking into shards.

Threat to electronics

Data protection: Strong magnets can ruin data carriers and sensitive devices (heart implants, medical aids, timepieces).

Magnetic interference

Navigation devices and smartphones are highly susceptible to magnetism. Close proximity with a powerful NdFeB magnet can decalibrate the sensors in your phone.

Danger to pacemakers

Medical warning: Strong magnets can turn off pacemakers and defibrillators. Do not approach if you have electronic implants.

Heat warning

Monitor thermal conditions. Heating the magnet above 80 degrees Celsius will ruin its properties and strength.

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

MP 20x5x27 / N38 - ring magnet

Technical of the product - MP 20x5x27 / N38 - ring magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical simulation of the magnet - report

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

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

Table 3: Wall mounting (sliding) - vertical pull MP 20x5x27 / N38

Table 4: Steel thickness (saturation) - power losses MP 20x5x27 / N38

Table 5: Thermal resistance (material behavior) - power drop 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) - warning MP 20x5x27 / N38

Table 9: Surface protection spec MP 20x5x27 / N38

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

Table 11: Underwater work (magnet fishing) MP 20x5x27 / N38

1. Shear force

2. Steel thickness impact

3. Heat tolerance

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

Chemical composition

Sustainability

Pulling force

Magnetic Induction

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MPL 6x6x6 / N38 - lamellar magnet

Advantages as well as disadvantages of neodymium magnets.

Strengths

Disadvantages

Pull force analysis

Maximum lifting force for a neodymium magnet – what contributes to it?

Lifting capacity in practice – influencing factors

Safe handling of neodymium magnets

Warning for allergy sufferers

Immense force

Danger to the youngest

Do not drill into magnets

Bodily injuries

Fragile material

Threat to electronics

Magnetic interference

Danger to pacemakers

Heat warning

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

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

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

Table 3: Wall mounting (sliding) - vertical pull
MP 20x5x27 / N38

Table 4: Steel thickness (saturation) - power losses
MP 20x5x27 / N38

Table 5: Thermal resistance (material behavior) - power drop
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) - warning
MP 20x5x27 / N38

Table 9: Surface protection spec
MP 20x5x27 / N38

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

Table 11: Underwater work (magnet fishing)
MP 20x5x27 / N38