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MP 20x10x5 / 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 030184

GTIN/EAN: 5906301812012

5.00

Diameter

20 mm [±0,1 mm]

internal diameter Ø

10 mm [±0,1 mm]

Height

5 mm [±0,1 mm]

Weight

8.84 g

Magnetization Direction

↑ axial

Load capacity

5.20 kg / 50.97 N

Magnetic Induction

277.16 mT / 2772 Gs

Coating

[NiCuNi] Nickel

product parameters »

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Technical data - MP 20x10x5 / N38 - ring magnet

Specification / characteristics - MP 20x10x5 / N38 - ring magnet

properties

properties	values
Cat. no.	030184
GTIN/EAN	5906301812012
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	10 mm [±0,1 mm]
Height	5 mm [±0,1 mm]
Weight	8.84 g
Magnetization Direction	↑ axial
Load capacity ~ ?	5.20 kg / 50.97 N
Magnetic Induction ~ ?	277.16 mT / 2772 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MP 20x10x5 / 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 modeling of the assembly - report

These information constitute the result of a physical analysis. Results are based on models for the class Nd₂Fe₁₄B. Actual parameters might slightly differ. Please consider these calculations as a reference point during assembly planning.

Table 1: Static pull force (pull vs gap) - characteristics
MP 20x10x5 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	5917 Gs 591.7 mT	5.20 kg / 11.46 lbs 5200.0 g / 51.0 N	warning
1 mm	5321 Gs 532.1 mT	4.21 kg / 9.27 lbs 4205.9 g / 41.3 N	warning
2 mm	4736 Gs 473.6 mT	3.33 kg / 7.35 lbs 3332.2 g / 32.7 N	warning
3 mm	4184 Gs 418.4 mT	2.60 kg / 5.73 lbs 2600.0 g / 25.5 N	warning
5 mm	3216 Gs 321.6 mT	1.54 kg / 3.39 lbs 1536.2 g / 15.1 N	safe
10 mm	1650 Gs 165.0 mT	0.40 kg / 0.89 lbs 404.2 g / 4.0 N	safe
15 mm	907 Gs 90.7 mT	0.12 kg / 0.27 lbs 122.3 g / 1.2 N	safe
20 mm	544 Gs 54.4 mT	0.04 kg / 0.10 lbs 44.0 g / 0.4 N	safe
30 mm	240 Gs 24.0 mT	0.01 kg / 0.02 lbs 8.5 g / 0.1 N	safe
50 mm	75 Gs 7.5 mT	0.00 kg / 0.00 lbs 0.8 g / 0.0 N	safe

Grip strength drops significantly per each millimeter of spacing. Note that every additional insulation layer (e.g., dirt, varnish, dust) noticeably diminishes the holding power. Magnets hold most effectively in perfect adhesion; gap nullifies the power. See how quickly the pull force drop, when the product does not adhere directly to the steel surface. When designing the assembly, avoid additional spacers.

Table 2: Vertical load (wall)
MP 20x10x5 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	1.04 kg / 2.29 lbs 1040.0 g / 10.2 N
1 mm	Stal (~0.2)	0.84 kg / 1.86 lbs 842.0 g / 8.3 N
2 mm	Stal (~0.2)	0.67 kg / 1.47 lbs 666.0 g / 6.5 N
3 mm	Stal (~0.2)	0.52 kg / 1.15 lbs 520.0 g / 5.1 N
5 mm	Stal (~0.2)	0.31 kg / 0.68 lbs 308.0 g / 3.0 N
10 mm	Stal (~0.2)	0.08 kg / 0.18 lbs 80.0 g / 0.8 N
15 mm	Stal (~0.2)	0.02 kg / 0.05 lbs 24.0 g / 0.2 N
20 mm	Stal (~0.2)	0.01 kg / 0.02 lbs 8.0 g / 0.1 N
30 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 2.0 g / 0.0 N
50 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 0.0 g / 0.0 N

This section indicates the estimated holding capacity required to start the shifting of the magnet vertically on a upright steel wall (assuming typical friction coefficient). This value varies with the air gap between the magnet and the surface.

Table 3: Wall mounting (shearing) - behavior on slippery surfaces
MP 20x10x5 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	1.56 kg / 3.44 lbs 1560.0 g / 15.3 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	1.04 kg / 2.29 lbs 1040.0 g / 10.2 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.52 kg / 1.15 lbs 520.0 g / 5.1 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	2.60 kg / 5.73 lbs 2600.0 g / 25.5 N

When mounting a element on a upright surface (e.g., a board), it you can count on barely about 20%-30% of its maximum pull force. Gravity and a low friction coefficient cause that products slide down faster than they detach. Want to create a hanger? Note that the sliding force is much weaker than the perpendicular breakaway force. On a painted metal, the element will slip down under a noticeably lighter cargo. Utilizing a rubberized pad can effectively improve the result.

Table 4: Material efficiency (saturation) - power losses
MP 20x10x5 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.52 kg / 1.15 lbs 520.0 g / 5.1 N
1 mm	25%	1.30 kg / 2.87 lbs 1300.0 g / 12.8 N
2 mm	50%	2.60 kg / 5.73 lbs 2600.0 g / 25.5 N
3 mm	75%	3.90 kg / 8.60 lbs 3900.0 g / 38.3 N
5 mm	100%	5.20 kg / 11.46 lbs 5200.0 g / 51.0 N
10 mm	100%	5.20 kg / 11.46 lbs 5200.0 g / 51.0 N
11 mm	100%	5.20 kg / 11.46 lbs 5200.0 g / 51.0 N
12 mm	100%	5.20 kg / 11.46 lbs 5200.0 g / 51.0 N

A thin metal plate cannot absorb the entire magnetic field, which squanders power of the holder. If you attach a powerful product to a thin surface, the magnetism will penetrate right through and the holding will be smaller. To utilize the maximum of this neodymium's power, you require a sufficiently solid piece of metal. The material oversaturation causes that on delicate walls (e.g., car bodies), the holder works worse. We recommend selecting the steel thickness based on the following data.

Table 5: Working in heat (material behavior) - thermal limit
MP 20x10x5 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	5.20 kg / 11.46 lbs 5200.0 g / 51.0 N	OK
40 °C	-2.2%	5.09 kg / 11.21 lbs 5085.6 g / 49.9 N	OK
60 °C	-4.4%	4.97 kg / 10.96 lbs 4971.2 g / 48.8 N	OK
80 °C	-6.6%	4.86 kg / 10.71 lbs 4856.8 g / 47.6 N
100 °C	-28.8%	3.70 kg / 8.16 lbs 3702.4 g / 36.3 N

Ordinary NdFeB products irreversibly lose power after exceeding the maximum temperature. Avoid high temperatures – excessive heat can irreversibly destroy this product. With increasing heat, the magnet's capacity momentarily drops. Refrain from using this magnet close to ovens higher than its operating temperature limit. Exceeding the critical threshold will result in irreversible degradation of magnetism.

*Technical advisory: Thermal stability is determined by both grade, and the Permeance Coefficient Pc. Thin magnets (low permeance coefficient) may lose charge permanently sooner than long magnets. Warning indicator in the table indicates a risk of irreversible loss for this specific geometry.

Table 6: Two magnets (attraction) - forces in the system
MP 20x10x5 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	54.03 kg / 119.11 lbs 6 121 Gs	8.10 kg / 17.87 lbs 8104 g / 79.5 N	N/A
1 mm	48.76 kg / 107.50 lbs 11 242 Gs	7.31 kg / 16.13 lbs 7314 g / 71.8 N	43.89 kg / 96.75 lbs ~0 Gs
2 mm	43.70 kg / 96.34 lbs 10 642 Gs	6.55 kg / 14.45 lbs 6555 g / 64.3 N	39.33 kg / 86.71 lbs ~0 Gs
3 mm	38.98 kg / 85.94 lbs 10 051 Gs	5.85 kg / 12.89 lbs 5847 g / 57.4 N	35.08 kg / 77.34 lbs ~0 Gs
5 mm	30.63 kg / 67.54 lbs 8 910 Gs	4.60 kg / 10.13 lbs 4595 g / 45.1 N	27.57 kg / 60.78 lbs ~0 Gs
10 mm	15.96 kg / 35.19 lbs 6 432 Gs	2.39 kg / 5.28 lbs 2394 g / 23.5 N	14.36 kg / 31.67 lbs ~0 Gs
20 mm	4.20 kg / 9.26 lbs 3 299 Gs	0.63 kg / 1.39 lbs 630 g / 6.2 N	3.78 kg / 8.33 lbs ~0 Gs
50 mm	0.19 kg / 0.42 lbs 702 Gs	0.03 kg / 0.06 lbs 29 g / 0.3 N	0.17 kg / 0.38 lbs ~0 Gs
60 mm	0.09 kg / 0.20 lbs 480 Gs	0.01 kg / 0.03 lbs 13 g / 0.1 N	0.08 kg / 0.18 lbs ~0 Gs
70 mm	0.05 kg / 0.10 lbs 342 Gs	0.01 kg / 0.01 lbs 7 g / 0.1 N	0.04 kg / 0.09 lbs ~0 Gs
80 mm	0.02 kg / 0.05 lbs 253 Gs	0.00 kg / 0.01 lbs 4 g / 0.0 N	0.02 kg / 0.05 lbs ~0 Gs
90 mm	0.01 kg / 0.03 lbs 193 Gs	0.00 kg / 0.00 lbs 2 g / 0.0 N	0.01 kg / 0.03 lbs ~0 Gs
100 mm	0.01 kg / 0.02 lbs 150 Gs	0.00 kg / 0.00 lbs 1 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs

Two magnetic products interact from a much further distance than a neodymium and metal combination. The connection of two magnets generates a stronger field and a further horizon of operation. Want to build a solid fastener? Utilize two neodymiums instead of a neodymium and a striker plate. Be careful that when bringing together two magnets, the pinch force is huge. The repulsion force is marginally weaker than the attraction, but still large.
*The magnetic induction for N-N configuration drops to ~0 Gs at the geometric center between the magnets (due to field cancellation).
Attention: Calculations demonstrate friction force of a pair of identical magnets (friction coefficient ~0.15 for Ni-Ni coating).

Table 7: Safety (HSE) (implants) - warnings
MP 20x10x5 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	14.5 cm
Hearing aid	10 Gs (1.0 mT)	11.5 cm
Mechanical watch	20 Gs (2.0 mT)	9.0 cm
Mobile device	40 Gs (4.0 mT)	6.5 cm
Car key	50 Gs (5.0 mT)	6.0 cm
Payment card	400 Gs (40.0 mT)	2.5 cm
HDD hard drive	600 Gs (60.0 mT)	2.0 cm

Powerful magnet radiation is a real danger to IT equipment as well as pacemakers. These magnets produce a flux that disrupts operation of digital equipment. Be aware: the unseen radiation penetrates the body and housings. Special caution must be taken by people with cochlear implants and insulin pumps. Influence will be felt by: mechanical watches, remotes, speakers, and displays. Do not place the magnet near cards, hard drives, or precise measuring instruments.

Table 8: Impact energy (kinetic energy) - collision effects
MP 20x10x5 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	25.62 km/h (7.12 m/s)	0.22 J
30 mm	42.41 km/h (11.78 m/s)	0.61 J
50 mm	54.70 km/h (15.19 m/s)	1.02 J
100 mm	77.35 km/h (21.49 m/s)	2.04 J

Magnetic elements are prone to chipping – a collision with steel risks their cracking. Control the attraction moment – a neodymium left loose speeds with massive force. Kinetic force can destroy the magnet or injury to fingers. Be sure to control the product during mounting so it doesn't hit with great force against the metal. A contact at a velocity of dozens of km/h almost guarantees destruction of the neodymium. Wear safety glasses when working with large magnets.

Table 9: Coating parameters (durability)
MP 20x10x5 / 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. Moisture resistance is crucial for installations in bathrooms or outdoors.

Table 10: Construction data (Flux)
MP 20x10x5 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	16 116 Mx	161.2 µWb
P_c Coefficient	1.13	High (Stable)

Total magnetic flux passing through the pole surface. Key data for generator designers as well as sensors. P_c value determines the magnet's operating point.

Table 11: Underwater work (magnet fishing)
MP 20x10x5 / N38

Environment	Effective steel pull	Effect
Air (land)	5.20 kg	Standard
Water (riverbed)	5.95 kg (+0.75 kg buoyancy gain)	+14.5%

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

In water, the magnet feels stronger thanks to Archimedes' principle. However, remember the water resistance when pulling the rope quickly.

1. Wall mount (shear)

*Caution: On a vertical surface, the magnet holds only approx. 20-30% of its nominal pull.

2. Steel saturation

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

3. Heat tolerance

*For N38 material, the safety limit is 80°C.

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 1.13

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

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: 030184-2026

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The ring-shaped magnet MP 20x10x5 / 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. 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 caution. We recommend tightening manually with a screwdriver, not an impact driver, because too much pressure 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.

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 inside building 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. Aesthetic mounting requires selecting the appropriate head size.

It is a magnetic ring with a diameter of 20 mm and thickness 5 mm. The pulling force of this model is an impressive 5.20 kg, which translates to 50.97 N in newtons. The product has a [NiCuNi] coating and is made of NdFeB material. Inner hole dimension: 10 mm.

These magnets are magnetized axially (through the thickness), which means one flat side is the N pole and the other is S. In the case of connecting two rings, make sure one is turned the right way. When ordering a larger quantity, magnets are usually packed in stacks, where they are already naturally paired.

Strengths as well as weaknesses of neodymium magnets.

Benefits

Besides their durability, neodymium magnets are valued for these benefits:

Their magnetic field is maintained, and after around 10 years it drops only by ~1% (theoretically),
They maintain their magnetic properties even under external field action,
Thanks to the glossy finish, the layer of nickel, gold-plated, or silver-plated gives an professional appearance,
Neodymium magnets ensure maximum magnetic induction on a their surface, which increases force concentration,
Due to their durability and thermal resistance, neodymium magnets can operate (depending on the shape) even at high temperatures reaching 230°C or more...
Thanks to modularity in designing and the ability to adapt to complex applications,
Fundamental importance in advanced technology sectors – they are used in data components, electric drive systems, precision medical tools, and other advanced devices.
Thanks to concentrated force, small magnets offer high operating force, with minimal size,

Cons

Characteristics of disadvantages of neodymium magnets: application proposals

They are prone to damage upon heavy impacts. To avoid cracks, it is worth securing magnets in special housings. Such protection not only protects the magnet but also improves 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 extremely resistant to heat
Due to the susceptibility of magnets to corrosion in a humid environment, we recommend using waterproof magnets made of rubber, plastic or other material immune to moisture, in case of application outdoors
Limited ability of creating nuts in the magnet and complex shapes - preferred is cover - magnet mounting.
Potential hazard related to microscopic parts of magnets can be dangerous, if swallowed, which is particularly important in the context of child health protection. Furthermore, small elements of these magnets are able to be problematic in diagnostics medical when they are in the body.
Due to expensive raw materials, their price exceeds standard values,

Pull force analysis

Magnetic strength at its maximum – what it depends on?

The lifting capacity listed is a result of laboratory testing executed under the following configuration:

using a sheet made of low-carbon steel, functioning as a magnetic yoke
whose thickness equals approx. 10 mm
with an ground contact surface
under conditions of no distance (metal-to-metal)
for force applied at a right angle (pull-off, not shear)
at temperature room level

Determinants of lifting force in real conditions

Real force impacted by specific conditions, mainly (from most important):

Air gap (between the magnet and the metal), as even a very small distance (e.g. 0.5 mm) results in a reduction in force by up to 50% (this also applies to paint, corrosion or debris).
Force direction – declared lifting capacity refers to detachment vertically. When attempting to slide, the magnet exhibits much less (typically approx. 20-30% of maximum force).
Metal thickness – the thinner the sheet, the weaker the hold. Part of the magnetic field penetrates through instead of converting into lifting capacity.
Material composition – not every steel reacts the same. Alloy additives weaken the attraction effect.
Plate texture – smooth surfaces ensure maximum contact, which improves field saturation. Uneven metal weaken the grip.
Thermal factor – hot environment weakens magnetic field. Too high temperature can permanently damage the magnet.

Holding force was checked on the plate surface of 20 mm thickness, when the force acted perpendicularly, in contrast under shearing force the lifting capacity is smaller. Additionally, even a slight gap between the magnet and the plate reduces the lifting capacity.

H&S for magnets

Power loss in heat

Monitor thermal conditions. Exposing the magnet to high heat will ruin its magnetic structure and strength.

Impact on smartphones

Be aware: rare earth magnets produce a field that confuses sensitive sensors. Keep a safe distance from your mobile, device, and navigation systems.

Keep away from computers

Avoid bringing magnets near a wallet, computer, or TV. The magnetism can permanently damage these devices and wipe information from cards.

Bone fractures

Protect your hands. Two powerful magnets will snap together instantly with a force of massive weight, crushing anything in their path. Be careful!

Sensitization to coating

Medical facts indicate that the nickel plating (standard magnet coating) is a common allergen. For allergy sufferers, prevent direct skin contact or choose versions in plastic housing.

Medical interference

People with a ICD have to keep an absolute distance from magnets. The magnetism can interfere with the operation of the life-saving device.

Protective goggles

Neodymium magnets are sintered ceramics, meaning they are very brittle. Collision of two magnets will cause them breaking into shards.

Danger to the youngest

Adult use only. Small elements can be swallowed, causing serious injuries. Store away from children and animals.

Powerful field

Handle magnets consciously. Their powerful strength can surprise even professionals. Stay alert and do not underestimate their power.

Dust explosion hazard

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

Attention! Details about hazards in the article: Safety of working with magnets.

MP 20x10x5 / N38 - ring magnet

Technical data - MP 20x10x5 / N38 - ring magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical modeling of the assembly - report

Table 1: Static pull force (pull vs gap) - characteristics MP 20x10x5 / N38

Table 2: Vertical load (wall) MP 20x10x5 / N38

Table 3: Wall mounting (shearing) - behavior on slippery surfaces MP 20x10x5 / N38

Table 4: Material efficiency (saturation) - power losses MP 20x10x5 / N38

Table 5: Working in heat (material behavior) - thermal limit MP 20x10x5 / N38

Table 6: Two magnets (attraction) - forces in the system MP 20x10x5 / N38

Table 7: Safety (HSE) (implants) - warnings MP 20x10x5 / N38

Table 8: Impact energy (kinetic energy) - collision effects MP 20x10x5 / N38

Table 9: Coating parameters (durability) MP 20x10x5 / N38

Table 10: Construction data (Flux) MP 20x10x5 / N38

Table 11: Underwater work (magnet fishing) MP 20x10x5 / N38

1. Wall mount (shear)

2. Steel saturation

3. Heat tolerance

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

Elemental analysis

Ecology and recycling (GPSR)

Force (pull)

Magnetic Field

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MW 8x15 / N38 - cylindrical magnet

Strengths as well as weaknesses of neodymium magnets.

Benefits

Cons

Pull force analysis

Magnetic strength at its maximum – what it depends on?

Determinants of lifting force in real conditions

H&S for magnets

Power loss in heat

Impact on smartphones

Keep away from computers

Bone fractures

Sensitization to coating

Medical interference

Protective goggles

Danger to the youngest

Powerful field

Dust explosion hazard

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (pull vs gap) - characteristics
MP 20x10x5 / N38

Table 2: Vertical load (wall)
MP 20x10x5 / N38

Table 3: Wall mounting (shearing) - behavior on slippery surfaces
MP 20x10x5 / N38

Table 4: Material efficiency (saturation) - power losses
MP 20x10x5 / N38

Table 5: Working in heat (material behavior) - thermal limit
MP 20x10x5 / N38

Table 6: Two magnets (attraction) - forces in the system
MP 20x10x5 / N38

Table 7: Safety (HSE) (implants) - warnings
MP 20x10x5 / N38

Table 8: Impact energy (kinetic energy) - collision effects
MP 20x10x5 / N38

Table 9: Coating parameters (durability)
MP 20x10x5 / N38

Table 10: Construction data (Flux)
MP 20x10x5 / N38

Table 11: Underwater work (magnet fishing)
MP 20x10x5 / N38