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MP 25x5x27 / 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 030192

GTIN/EAN: 5906301812098

5.00

Diameter

25 mm [±0,1 mm]

internal diameter Ø

5 mm [±0,1 mm]

Height

27 mm [±0,1 mm]

Weight

95.43 g

Magnetization Direction

↑ axial

Load capacity

18.51 kg / 181.54 N

Magnetic Induction

562.34 mT / 5623 Gs

Coating

[NiCuNi] Nickel

technical details »

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Technical details - MP 25x5x27 / N38 - ring magnet

Specification / characteristics - MP 25x5x27 / N38 - ring magnet

properties

properties	values
Cat. no.	030192
GTIN/EAN	5906301812098
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	25 mm [±0,1 mm]
internal diameter Ø	5 mm [±0,1 mm]
Height	27 mm [±0,1 mm]
Weight	95.43 g
Magnetization Direction	↑ axial
Load capacity ~ ?	18.51 kg / 181.54 N
Magnetic Induction ~ ?	562.34 mT / 5623 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MP 25x5x27 / 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 product - technical parameters

These data are the direct effect of a physical analysis. Values are based on models for the class Nd₂Fe₁₄B. Actual performance might slightly deviate from the simulation results. Treat these calculations as a reference point when designing systems.

Table 1: Static pull force (pull vs gap) - characteristics
MP 25x5x27 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	5716 Gs 571.6 mT	18.51 kg / 40.81 lbs 18510.0 g / 181.6 N	dangerous!
1 mm	5288 Gs 528.8 mT	15.84 kg / 34.92 lbs 15839.8 g / 155.4 N	dangerous!
2 mm	4861 Gs 486.1 mT	13.38 kg / 29.51 lbs 13384.0 g / 131.3 N	dangerous!
3 mm	4446 Gs 444.6 mT	11.20 kg / 24.69 lbs 11198.0 g / 109.9 N	dangerous!
5 mm	3677 Gs 367.7 mT	7.66 kg / 16.88 lbs 7657.5 g / 75.1 N	warning
10 mm	2216 Gs 221.6 mT	2.78 kg / 6.13 lbs 2782.1 g / 27.3 N	warning
15 mm	1354 Gs 135.4 mT	1.04 kg / 2.29 lbs 1037.8 g / 10.2 N	safe
20 mm	864 Gs 86.4 mT	0.42 kg / 0.93 lbs 423.3 g / 4.2 N	safe
30 mm	405 Gs 40.5 mT	0.09 kg / 0.21 lbs 93.1 g / 0.9 N	safe
50 mm	133 Gs 13.3 mT	0.01 kg / 0.02 lbs 10.0 g / 0.1 N	safe

Magnetic force decreases drastically with every mm of gap. Remember that even the smallest gap (e.g., contamination, varnish, rust) strongly reduces the pull force. Magnets hold strongest in perfect adhesion; gap drastically cuts the power. Notice how quickly the load capacity drop, when the magnet does not touch directly to the metal substrate. When planning the arrangement, avoid redundant distances.

Table 2: Shear force (vertical surface)
MP 25x5x27 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	3.70 kg / 8.16 lbs 3702.0 g / 36.3 N
1 mm	Stal (~0.2)	3.17 kg / 6.98 lbs 3168.0 g / 31.1 N
2 mm	Stal (~0.2)	2.68 kg / 5.90 lbs 2676.0 g / 26.3 N
3 mm	Stal (~0.2)	2.24 kg / 4.94 lbs 2240.0 g / 22.0 N
5 mm	Stal (~0.2)	1.53 kg / 3.38 lbs 1532.0 g / 15.0 N
10 mm	Stal (~0.2)	0.56 kg / 1.23 lbs 556.0 g / 5.5 N
15 mm	Stal (~0.2)	0.21 kg / 0.46 lbs 208.0 g / 2.0 N
20 mm	Stal (~0.2)	0.08 kg / 0.19 lbs 84.0 g / 0.8 N
30 mm	Stal (~0.2)	0.02 kg / 0.04 lbs 18.0 g / 0.2 N
50 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 2.0 g / 0.0 N

The table below calculates the theoretical force required to initiate the slippage of the magnet vertically along a upright steel wall (assuming standard friction). The holding force varies with the gap size between the magnet and the metal.

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces
MP 25x5x27 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	5.55 kg / 12.24 lbs 5553.0 g / 54.5 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	3.70 kg / 8.16 lbs 3702.0 g / 36.3 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	1.85 kg / 4.08 lbs 1851.0 g / 18.2 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	9.26 kg / 20.40 lbs 9255.0 g / 90.8 N

When placing a magnet on a upright wall (e.g., a car body), it you can count on barely about 20%-30% of its nominal power. Gravitational force as well as a low friction coefficient mean that magnets slide down faster than they detach. Want to create a vertical fastening? Remember that the sliding force is noticeably lower than the perpendicular breakaway force. On a painted metal, the element will slide down under a significantly smaller load. Utilizing a rubberized layer can effectively raise the stability.

Table 4: Steel thickness (substrate influence) - sheet metal selection
MP 25x5x27 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	5%	0.93 kg / 2.04 lbs 925.5 g / 9.1 N
1 mm	13%	2.31 kg / 5.10 lbs 2313.8 g / 22.7 N
2 mm	25%	4.63 kg / 10.20 lbs 4627.5 g / 45.4 N
3 mm	38%	6.94 kg / 15.30 lbs 6941.3 g / 68.1 N
5 mm	63%	11.57 kg / 25.50 lbs 11568.8 g / 113.5 N
10 mm	100%	18.51 kg / 40.81 lbs 18510.0 g / 181.6 N
11 mm	100%	18.51 kg / 40.81 lbs 18510.0 g / 181.6 N
12 mm	100%	18.51 kg / 40.81 lbs 18510.0 g / 181.6 N

A too thin steel is unable to focus the full magnetic flux, which wastes potential of the holder. Should you attach a powerful product to a weak sheet, the magnetism will penetrate right through and the pull force will drop sharply. To achieve full efficiency of this neodymium's potential, you need a suitably thick backing of steel. The saturation effect means that on delicate walls (e.g., thin profiles), the magnet works worse. We advise picking the steel dimension based on the following data.

Table 5: Working in heat (material behavior) - power drop
MP 25x5x27 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	18.51 kg / 40.81 lbs 18510.0 g / 181.6 N	OK
40 °C	-2.2%	18.10 kg / 39.91 lbs 18102.8 g / 177.6 N	OK
60 °C	-4.4%	17.70 kg / 39.01 lbs 17695.6 g / 173.6 N	OK
80 °C	-6.6%	17.29 kg / 38.11 lbs 17288.3 g / 169.6 N
100 °C	-28.8%	13.18 kg / 29.05 lbs 13179.1 g / 129.3 N

Classic neodymiums change their properties power past the thermal threshold. Watch out for overheating – excessive heat can irreversibly destroy this product. With every degree above norm, the magnet's force briefly drops. Refrain from using this magnet near heat sources exceeding its operating temperature limit. Ignoring the limit will result in irreversible degradation of magnetism.

*Important note: Heat tolerance depends not only on the material grade, but also on the magnet's shape. Thin magnets (low permeance coefficient) risk losing magnetic properties at lower temperatures compared to rod magnets. Warning indicator in the table points to permanent field degradation for this particular item.

Table 6: Two magnets (repulsion) - forces in the system
MP 25x5x27 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Strength (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	13.99 kg / 30.83 lbs 6 064 Gs	2.10 kg / 4.62 lbs 2098 g / 20.6 N	N/A
1 mm	12.97 kg / 28.59 lbs 11 008 Gs	1.94 kg / 4.29 lbs 1945 g / 19.1 N	11.67 kg / 25.73 lbs ~0 Gs
2 mm	11.97 kg / 26.39 lbs 10 576 Gs	1.80 kg / 3.96 lbs 1795 g / 17.6 N	10.77 kg / 23.75 lbs ~0 Gs
3 mm	11.02 kg / 24.29 lbs 10 146 Gs	1.65 kg / 3.64 lbs 1652 g / 16.2 N	9.91 kg / 21.86 lbs ~0 Gs
5 mm	9.26 kg / 20.42 lbs 9 303 Gs	1.39 kg / 3.06 lbs 1389 g / 13.6 N	8.33 kg / 18.37 lbs ~0 Gs
10 mm	5.79 kg / 12.76 lbs 7 353 Gs	0.87 kg / 1.91 lbs 868 g / 8.5 N	5.21 kg / 11.48 lbs ~0 Gs
20 mm	2.10 kg / 4.63 lbs 4 432 Gs	0.32 kg / 0.70 lbs 315 g / 3.1 N	1.89 kg / 4.17 lbs ~0 Gs
50 mm	0.14 kg / 0.32 lbs 1 159 Gs	0.02 kg / 0.05 lbs 22 g / 0.2 N	0.13 kg / 0.29 lbs ~0 Gs
60 mm	0.07 kg / 0.16 lbs 811 Gs	0.01 kg / 0.02 lbs 11 g / 0.1 N	0.06 kg / 0.14 lbs ~0 Gs
70 mm	0.04 kg / 0.08 lbs 589 Gs	0.01 kg / 0.01 lbs 6 g / 0.1 N	0.03 kg / 0.07 lbs ~0 Gs
80 mm	0.02 kg / 0.05 lbs 440 Gs	0.00 kg / 0.01 lbs 3 g / 0.0 N	0.02 kg / 0.04 lbs ~0 Gs
90 mm	0.01 kg / 0.03 lbs 338 Gs	0.00 kg / 0.00 lbs 2 g / 0.0 N	0.01 kg / 0.02 lbs ~0 Gs
100 mm	0.01 kg / 0.02 lbs 265 Gs	0.00 kg / 0.00 lbs 1 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs

Two magnets interact from a much further distance than a magnet and steel combination. The setup of magnet-to-magnet produces a massive flux and a further horizon of performance. Planning to create a powerful holder? Apply two magnets instead of a neodymium and a steel. Be careful that when bringing together two magnets, the impact force is huge. The levitation is slightly lower than the attraction, but still significant.
*Flux density in repulsion mode reaches ~0 Gs in the exact middle of the gap (resulting from vector opposition).
Important: Estimates show sliding force of a pair of matching neodymium magnets (friction ~0.15 for Ni-Ni layer).

Table 7: Protective zones (electronics) - precautionary measures
MP 25x5x27 / 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
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 poses a real danger to electronic devices as well as medical implants. These neodymiums generate a field that disrupts operation of digital equipment. Notice: the invisible magnetic field passes through tissues and plastic. Exceptional care must be taken by people with hearing aids and drug dispensers. Influence will be felt by: mechanical watches, car keys, membranes, and displays. Do not bring the product near payment cards, hard drives, or sensitive navigation tools.

Table 8: Collisions (kinetic energy) - collision effects
MP 25x5x27 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	15.31 km/h (4.25 m/s)	0.86 J
30 mm	24.40 km/h (6.78 m/s)	2.19 J
50 mm	31.42 km/h (8.73 m/s)	3.63 J
100 mm	44.42 km/h (12.34 m/s)	7.26 J

Neodymium magnets are very brittle – a collision with steel risks their cracking. Watch the impact speed – a magnet released freely becomes dangerous. Impact energy can destroy the magnet or dangerous crushing to skin. Be sure to control the product during mounting so it doesn't hit with great force against the steel surface. A collision at high speed ends with a crack of the magnet. Wear safety glasses when working with large magnets.

Table 9: Anti-corrosion coating durability
MP 25x5x27 / 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)

Neodymium magnets are highly susceptible to corrosion without proper protection. The silver nickel coating also serves an aesthetic function but is not fully waterproof.

Table 10: Electrical data (Flux)
MP 25x5x27 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	4 917 Mx	49.2 µWb
P_c Coefficient	1.40	High (Stable)

Flux value emitted by the pole surface. Key data for generator designers and motors. The P_c coefficient determines the working geometry.

Table 11: Hydrostatics and buoyancy
MP 25x5x27 / N38

Environment	Effective steel pull	Effect
Air (land)	18.51 kg	Standard
Water (riverbed)	21.19 kg (+2.68 kg buoyancy gain)	+14.5%

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

The magnetic field penetrates through water without any losses. Buoyancy helps in lifting finds.

1. Wall mount (shear)

*Caution: On a vertical surface, the magnet retains just a fraction of its nominal pull.

2. Efficiency vs thickness

*Thin steel (e.g. computer case) drastically 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) = 1.40

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.

Engineering data and GPSR

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%

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: 030192-2026

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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 is a crucial issue when working with model MP 25x5x27 / 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. 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.

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 can be damaged when tightening the screw, which will become a corrosion focus. This product is dedicated for indoor use. For outdoor applications, we recommend choosing magnets in hermetic housing or additional protection with varnish.

The inner hole diameter determines the maximum size of the mounting element. For magnets with a straight hole, a conical head can act like a wedge and burst the magnet. Always check that the screw head is not larger than the outer diameter of the magnet (25 mm), so it doesn't protrude beyond the outline.

The presented product is a ring magnet with dimensions Ø25 mm (outer diameter) and height 27 mm. The key parameter here is the lifting capacity amounting to approximately 18.51 kg (force ~181.54 N). 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). We do not offer paired sets with marked poles in this category, but they are easy to match manually.

Pros and cons of rare earth magnets.

Strengths

Besides their immense strength, neodymium magnets offer the following advantages:

They have unchanged lifting capacity, and over nearly 10 years their performance decreases symbolically – ~1% (in testing),
They have excellent resistance to magnetic field loss due to external magnetic sources,
In other words, due to the shiny finish of silver, the element is aesthetically pleasing,
The surface of neodymium magnets generates a maximum magnetic field – this is one of their assets,
Thanks to resistance to high temperature, they are able to function (depending on the shape) even at temperatures up to 230°C and higher...
Due to the possibility of accurate molding and adaptation to unique projects, NdFeB magnets can be produced in a wide range of forms and dimensions, which amplifies use scope,
Fundamental importance in high-tech industry – they find application in magnetic memories, drive modules, diagnostic systems, also multitasking production systems.
Thanks to efficiency per cm³, small magnets offer high operating force, with minimal size,

Cons

Disadvantages of neodymium magnets:

Brittleness is one of their disadvantages. Upon strong impact they can fracture. We recommend keeping them in a special holder, which not only secures them against impacts but also increases their durability
NdFeB magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening 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
They oxidize in a humid environment. For use outdoors we advise using waterproof magnets e.g. in rubber, plastic
Limited ability of making nuts in the magnet and complicated forms - recommended is a housing - mounting mechanism.
Possible danger to health – tiny shards of magnets pose a threat, in case of ingestion, which becomes key in the aspect of protecting the youngest. Additionally, tiny parts of these products are able to be problematic in diagnostics medical in case of swallowing.
Due to complex production process, their price exceeds standard values,

Pull force analysis

Maximum magnetic pulling force – what contributes to it?

The lifting capacity listed is a measurement result performed under standard conditions:

with the contact of a yoke made of low-carbon steel, ensuring full magnetic saturation
whose transverse dimension is min. 10 mm
with a surface free of scratches
with direct contact (no paint)
for force applied at a right angle (in the magnet axis)
in temp. approx. 20°C

Impact of factors on magnetic holding capacity in practice

Please note that the working load will differ subject to the following factors, in order of importance:

Clearance – existence of any layer (rust, tape, air) interrupts the magnetic circuit, which lowers capacity steeply (even by 50% at 0.5 mm).
Force direction – catalog parameter refers to pulling vertically. When attempting to slide, the magnet exhibits much less (typically 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 converting into lifting capacity.
Material type – the best choice is pure iron steel. Cast iron may have worse magnetic properties.
Plate texture – ground elements guarantee perfect abutment, which improves field saturation. Rough surfaces reduce efficiency.
Temperature influence – high temperature reduces magnetic field. Exceeding the limit temperature can permanently demagnetize the magnet.

Lifting capacity was assessed with the use of a polished steel plate of optimal thickness (min. 20 mm), under vertically applied force, however under shearing force the load capacity is reduced by as much as fivefold. Additionally, even a small distance between the magnet and the plate decreases the holding force.

Precautions when working with NdFeB magnets

Implant safety

Individuals with a heart stimulator have to maintain an safe separation from magnets. The magnetism can interfere with the operation of the implant.

Metal Allergy

Nickel alert: The Ni-Cu-Ni coating consists of nickel. If an allergic reaction appears, cease handling magnets and wear gloves.

Swallowing risk

Neodymium magnets are not toys. Accidental ingestion of a few magnets may result in them connecting inside the digestive tract, which poses a critical condition and necessitates immediate surgery.

Shattering risk

Despite metallic appearance, the material is brittle and cannot withstand shocks. Avoid impacts, as the magnet may shatter into hazardous fragments.

Threat to navigation

An intense magnetic field disrupts the functioning of magnetometers in smartphones and navigation systems. Do not bring magnets near a device to prevent damaging the sensors.

Fire risk

Mechanical processing of neodymium magnets carries a risk of fire hazard. Magnetic powder oxidizes rapidly with oxygen and is hard to extinguish.

Maximum temperature

Avoid heat. Neodymium magnets are sensitive to heat. If you need operation above 80°C, look for HT versions (H, SH, UH).

Finger safety

Large magnets can break fingers instantly. Do not place your hand betwixt two strong magnets.

Powerful field

Handle with care. Neodymium magnets act from a distance and snap with massive power, often faster than you can react.

Safe distance

Very strong magnetic fields can erase data on credit cards, HDDs, and storage devices. Keep a distance of min. 10 cm.

Security! More info about risks in the article: Safety of working with magnets.

MP 25x5x27 / N38 - ring magnet

Technical details - MP 25x5x27 / N38 - ring magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical simulation of the product - technical parameters

Table 1: Static pull force (pull vs gap) - characteristics MP 25x5x27 / N38

Table 2: Shear force (vertical surface) MP 25x5x27 / N38

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces MP 25x5x27 / N38

Table 4: Steel thickness (substrate influence) - sheet metal selection MP 25x5x27 / N38

Table 5: Working in heat (material behavior) - power drop MP 25x5x27 / N38

Table 6: Two magnets (repulsion) - forces in the system MP 25x5x27 / N38

Table 7: Protective zones (electronics) - precautionary measures MP 25x5x27 / N38

Table 8: Collisions (kinetic energy) - collision effects MP 25x5x27 / N38

Table 9: Anti-corrosion coating durability MP 25x5x27 / N38

Table 10: Electrical data (Flux) MP 25x5x27 / N38

Table 11: Hydrostatics and buoyancy MP 25x5x27 / N38

1. Wall mount (shear)

2. Efficiency vs thickness

3. Temperature resistance

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

Elemental analysis

Sustainability

Pulling force

Magnetic Induction

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Pros and cons of rare earth magnets.

Strengths

Cons

Pull force analysis

Maximum magnetic pulling force – what contributes to it?

Impact of factors on magnetic holding capacity in practice

Precautions when working with NdFeB magnets

Implant safety

Metal Allergy

Swallowing risk

Shattering risk

Threat to navigation

Fire risk

Maximum temperature

Finger safety

Powerful field

Safe distance

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (pull vs gap) - characteristics
MP 25x5x27 / N38

Table 2: Shear force (vertical surface)
MP 25x5x27 / N38

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces
MP 25x5x27 / N38

Table 4: Steel thickness (substrate influence) - sheet metal selection
MP 25x5x27 / N38

Table 5: Working in heat (material behavior) - power drop
MP 25x5x27 / N38

Table 6: Two magnets (repulsion) - forces in the system
MP 25x5x27 / N38

Table 7: Protective zones (electronics) - precautionary measures
MP 25x5x27 / N38

Table 8: Collisions (kinetic energy) - collision effects
MP 25x5x27 / N38

Table 9: Anti-corrosion coating durability
MP 25x5x27 / N38

Table 10: Electrical data (Flux)
MP 25x5x27 / N38

Table 11: Hydrostatics and buoyancy
MP 25x5x27 / N38