Product available Ships tomorrow

MP 16x8/4x3 / 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 030396

GTIN/EAN: 5906301812333

5.00

Diameter

16 mm [±0,1 mm]

internal diameter Ø

8/4 mm [±0,1 mm]

Height

3 mm [±0,1 mm]

Weight

4.24 g

Magnetization Direction

↑ axial

Load capacity

2.78 kg / 27.29 N

Magnetic Induction

217.61 mT / 2176 Gs

Coating

[NiCuNi] Nickel

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2.50 ZŁ with VAT / pcs + price for transport

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Technical details - MP 16x8/4x3 / N38 - ring magnet

Specification / characteristics - MP 16x8/4x3 / N38 - ring magnet

properties

properties	values
Cat. no.	030396
GTIN/EAN	5906301812333
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	16 mm [±0,1 mm]
internal diameter Ø	8/4 mm [±0,1 mm]
Height	3 mm [±0,1 mm]
Weight	4.24 g
Magnetization Direction	↑ axial
Load capacity ~ ?	2.78 kg / 27.29 N
Magnetic Induction ~ ?	217.61 mT / 2176 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MP 16x8/4x3 / 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 product - report

The following information constitute the outcome of a mathematical calculation. Results are based on models for the material Nd₂Fe₁₄B. Operational parameters may deviate from the simulation results. Use these data as a reference point during assembly planning.

Table 1: Static force (pull vs gap) - power drop
MP 16x8/4x3 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	1882 Gs 188.2 mT	2.78 kg / 6.13 pounds 2780.0 g / 27.3 N	strong
1 mm	1746 Gs 174.6 mT	2.39 kg / 5.27 pounds 2392.4 g / 23.5 N	strong
2 mm	1561 Gs 156.1 mT	1.91 kg / 4.22 pounds 1913.9 g / 18.8 N	safe
3 mm	1357 Gs 135.7 mT	1.45 kg / 3.19 pounds 1445.8 g / 14.2 N	safe
5 mm	969 Gs 96.9 mT	0.74 kg / 1.63 pounds 737.7 g / 7.2 N	safe
10 mm	387 Gs 38.7 mT	0.12 kg / 0.26 pounds 117.4 g / 1.2 N	safe
15 mm	171 Gs 17.1 mT	0.02 kg / 0.05 pounds 22.9 g / 0.2 N	safe
20 mm	87 Gs 8.7 mT	0.01 kg / 0.01 pounds 5.9 g / 0.1 N	safe
30 mm	30 Gs 3.0 mT	0.00 kg / 0.00 pounds 0.7 g / 0.0 N	safe
50 mm	7 Gs 0.7 mT	0.00 kg / 0.00 pounds 0.0 g / 0.0 N	safe

Pulling power drops significantly with every subsequent millimeter of gap. Remember that even a very thin break (e.g., dirt, varnish, rust) strongly diminishes the holding power. Magnets hold strongest in perfect adhesion; gap nullifies the force. Observe how rapidly the parameters drop, when the magnet does not touch directly to the steel surface. When calculating the arrangement, discard additional spacers.

Table 2: Sliding hold (wall)
MP 16x8/4x3 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	0.56 kg / 1.23 pounds 556.0 g / 5.5 N
1 mm	Stal (~0.2)	0.48 kg / 1.05 pounds 478.0 g / 4.7 N
2 mm	Stal (~0.2)	0.38 kg / 0.84 pounds 382.0 g / 3.7 N
3 mm	Stal (~0.2)	0.29 kg / 0.64 pounds 290.0 g / 2.8 N
5 mm	Stal (~0.2)	0.15 kg / 0.33 pounds 148.0 g / 1.5 N
10 mm	Stal (~0.2)	0.02 kg / 0.05 pounds 24.0 g / 0.2 N
15 mm	Stal (~0.2)	0.00 kg / 0.01 pounds 4.0 g / 0.0 N
20 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 2.0 g / 0.0 N
30 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 0.0 g / 0.0 N
50 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 0.0 g / 0.0 N

The table below calculates the theoretical force sufficient to initiate the downward movement of the magnet downwards along a vertical steel wall (assuming typical friction coefficient). The holding force is a function of the distance between the magnet and the metal.

Table 3: Wall mounting (shearing) - behavior on slippery surfaces
MP 16x8/4x3 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	0.83 kg / 1.84 pounds 834.0 g / 8.2 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.56 kg / 1.23 pounds 556.0 g / 5.5 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.28 kg / 0.61 pounds 278.0 g / 2.7 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	1.39 kg / 3.06 pounds 1390.0 g / 13.6 N

When hanging a element on a upright wall (e.g., a fridge), it will maintain just about 20%-30% of its nominal power. Gravitational force as well as a low friction coefficient mean that products slip faster than they pull off. Planning a vertical fastening? Consider that the sliding force is noticeably lower than the maximum static pull force. On a slippery surface, the element will slip down under a significantly smaller weight. Application of an anti-slip layer can drastically improve the result.

Table 4: Steel thickness (saturation) - sheet metal selection
MP 16x8/4x3 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.28 kg / 0.61 pounds 278.0 g / 2.7 N
1 mm	25%	0.70 kg / 1.53 pounds 695.0 g / 6.8 N
2 mm	50%	1.39 kg / 3.06 pounds 1390.0 g / 13.6 N
3 mm	75%	2.09 kg / 4.60 pounds 2085.0 g / 20.5 N
5 mm	100%	2.78 kg / 6.13 pounds 2780.0 g / 27.3 N
10 mm	100%	2.78 kg / 6.13 pounds 2780.0 g / 27.3 N
11 mm	100%	2.78 kg / 6.13 pounds 2780.0 g / 27.3 N
12 mm	100%	2.78 kg / 6.13 pounds 2780.0 g / 27.3 N

A thin metal plate is unable to absorb the entire magnetic field, which squanders power of the holder. Should you install a neodymium to a weak sheet, the flux will pass right through and the pull force will drop sharply. To achieve the maximum of this neodymium's potential, you need a suitably thick element of steel. The material oversaturation causes that on thin elements (e.g., appliance housings), the magnet holds weaker. We advise picking the steel dimension based on the following data.

Table 5: Thermal resistance (material behavior) - resistance threshold
MP 16x8/4x3 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	2.78 kg / 6.13 pounds 2780.0 g / 27.3 N	OK
40 °C	-2.2%	2.72 kg / 5.99 pounds 2718.8 g / 26.7 N	OK
60 °C	-4.4%	2.66 kg / 5.86 pounds 2657.7 g / 26.1 N
80 °C	-6.6%	2.60 kg / 5.72 pounds 2596.5 g / 25.5 N
100 °C	-28.8%	1.98 kg / 4.36 pounds 1979.4 g / 19.4 N

Standard neodymium magnets lose power above the temperature limit. Avoid high temperatures – heat can irreversibly demagnetize this product. With increasing heat, the magnet's power momentarily drops. Do not use this magnet close to ovens exceeding its operating temperature limit. Ignoring the limit will lead to destruction of magnetic properties.

*Technical advisory: Heat tolerance depends not only on the material grade, and the Permeance Coefficient Pc. Flat magnets (low permeance coefficient) may lose charge permanently sooner compared to rod magnets. Red status in the table points to a risk of irreversible loss for this specific geometry.

Table 6: Magnet-Magnet interaction (attraction) - field collision
MP 16x8/4x3 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	3.50 kg / 7.71 pounds 3 330 Gs	0.52 kg / 1.16 pounds 525 g / 5.1 N	N/A
1 mm	3.28 kg / 7.23 pounds 3 644 Gs	0.49 kg / 1.08 pounds 492 g / 4.8 N	2.95 kg / 6.51 pounds ~0 Gs
2 mm	3.01 kg / 6.64 pounds 3 492 Gs	0.45 kg / 1.00 pounds 452 g / 4.4 N	2.71 kg / 5.97 pounds ~0 Gs
3 mm	2.71 kg / 5.98 pounds 3 316 Gs	0.41 kg / 0.90 pounds 407 g / 4.0 N	2.44 kg / 5.39 pounds ~0 Gs
5 mm	2.11 kg / 4.64 pounds 2 920 Gs	0.32 kg / 0.70 pounds 316 g / 3.1 N	1.90 kg / 4.18 pounds ~0 Gs
10 mm	0.93 kg / 2.05 pounds 1 939 Gs	0.14 kg / 0.31 pounds 139 g / 1.4 N	0.84 kg / 1.84 pounds ~0 Gs
20 mm	0.15 kg / 0.33 pounds 773 Gs	0.02 kg / 0.05 pounds 22 g / 0.2 N	0.13 kg / 0.29 pounds ~0 Gs
50 mm	0.00 kg / 0.01 pounds 98 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs
60 mm	0.00 kg / 0.00 pounds 60 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs
70 mm	0.00 kg / 0.00 pounds 40 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs
80 mm	0.00 kg / 0.00 pounds 27 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs
90 mm	0.00 kg / 0.00 pounds 20 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs
100 mm	0.00 kg / 0.00 pounds 14 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs

Two magnets attract each other from a significantly greater distance than a neodymium and metal setup. Such a system of two magnets generates a stronger field and a further horizon of action. Designing a powerful holder? Apply two magnets instead of a neodymium and a striker plate. Exercise caution that when bringing together two magnets, the collision energy is extreme. The repulsion force is marginally weaker than the attraction, but still impressive.
*The magnetic induction for N-N configuration reaches ~0 Gs at the geometric center between the magnets (due to field cancellation).
Attention: Calculations show friction force of two identical magnets (friction coefficient ~0.15 for Ni-Ni coating).

Table 7: Protective zones (implants) - precautionary measures
MP 16x8/4x3 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	6.0 cm
Hearing aid	10 Gs (1.0 mT)	4.5 cm
Mechanical watch	20 Gs (2.0 mT)	3.5 cm
Phone / Smartphone	40 Gs (4.0 mT)	3.0 cm
Car key	50 Gs (5.0 mT)	2.5 cm
Payment card	400 Gs (40.0 mT)	1.0 cm
HDD hard drive	600 Gs (60.0 mT)	1.0 cm

A strong magnetic field is a real danger to electronic devices as well as medical implants. These magnets produce a flux that prevents correct functioning of sensitive medical devices. Notice: the invisible magnetic field penetrates the body and housings. Increased vigilance must be exercised by people with cochlear implants and drug dispensers. Also at risk are: automatic timepieces, remotes, membranes, and screens. Do not bring the product near payment cards, HDD media, or precise measuring instruments.

Table 8: Collisions (cracking risk) - warning
MP 16x8/4x3 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	26.50 km/h (7.36 m/s)	0.11 J
30 mm	44.74 km/h (12.43 m/s)	0.33 J
50 mm	57.74 km/h (16.04 m/s)	0.55 J
100 mm	81.66 km/h (22.68 m/s)	1.09 J

Magnetic elements are delicate – a collision with steel risks their cracking. Pay attention to connection velocity – a magnet released freely speeds with massive force. Striking energy can destroy the magnet or painful pinches 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 almost guarantees destruction of the neodymium. Wear safety glasses when handling with powerful specimens.

Table 9: Surface protection spec
MP 16x8/4x3 / 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 (P_c)
MP 16x8/4x3 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	3 743 Mx	37.4 µWb
P_c Coefficient	0.24	Low (Flat)

Total magnetic flux passing through the magnet pole. Key data for generator designers and motors. The P_c coefficient defines the working geometry.

Table 11: Underwater work (magnet fishing)
MP 16x8/4x3 / N38

Environment	Effective steel pull	Effect
Air (land)	2.78 kg	Standard
Water (riverbed)	3.18 kg (+0.40 kg buoyancy gain)	+14.5%

Corrosion warning: Remember to wipe the magnet thoroughly after removing it from water and apply a protective layer (e.g., oil) to avoid corrosion.

The magnetic field penetrates through water without any losses. Note: for permanent underwater work, we recommend magnets with an anti-corrosive (epoxy) coating.

1. Wall mount (shear)

*Warning: On a vertical surface, the magnet retains only approx. 20-30% of its max power.

2. Steel thickness impact

*Thin metal sheet (e.g. 0.5mm PC case) significantly limits the holding force.

3. Thermal stability

*For standard magnets, the critical limit is 80°C.

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 0.24

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.

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%

Environmental data

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: 030396-2026

Measurement Calculator

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Force in kg

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MP 62x42x25 / N38 - ring magnet

165.00 ZŁ brutto / pcs

The ring magnet with a hole MP 16x8/4x3 / N38 is created for permanent mounting, where glue might fail or be insufficient. 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. One turn too many can destroy the magnet, so do it slowly. 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 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 rubberized holders or additional protection with varnish.

A screw or bolt with a thread diameter smaller than 8/4 mm fits this model. If the magnet does not have a chamfer (cone), we recommend using a screw with a flat or cylindrical head, or possibly using a washer. Always check that the screw head is not larger than the outer diameter of the magnet (16 mm), so it doesn't protrude beyond the outline.

It is a magnetic ring with a diameter of 16 mm and thickness 3 mm. The pulling force of this model is an impressive 2.78 kg, which translates to 27.29 N in newtons. The mounting hole diameter is precisely 8/4 mm.

The poles are located on the planes with holes, not on the sides of the ring. In the case of connecting two rings, make sure one is turned the right way. We do not offer paired sets with marked poles in this category, but they are easy to match manually.

Pros as well as cons of Nd₂Fe₁₄B magnets.

Benefits

In addition to their long-term stability, neodymium magnets provide the following advantages:

They have stable power, and over more than 10 years their performance decreases symbolically – ~1% (in testing),
They maintain their magnetic properties even under close interference source,
By applying a smooth coating of silver, the element has an modern look,
They feature high magnetic induction at the operating surface, which affects their effectiveness,
Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their shape) at temperatures up to 230°C and above...
Thanks to modularity in constructing and the ability to modify to specific needs,
Universal use in modern technologies – they are used in data components, motor assemblies, advanced medical instruments, also industrial machines.
Relatively small size with high pulling force – neodymium magnets offer high power in compact dimensions, which makes them useful in compact constructions

Cons

Disadvantages of NdFeB magnets:

Brittleness is one of their disadvantages. Upon strong impact they can break. We advise keeping them in a special holder, which not only secures them against impacts but also raises their durability
We warn that neodymium magnets can lose their power at high temperatures. To prevent this, we advise our specialized [AH] magnets, which work effectively even at 230°C.
Magnets exposed to a humid environment can corrode. Therefore while using outdoors, we recommend using water-impermeable magnets made of rubber, plastic or other material protecting against moisture
Limited possibility of producing nuts in the magnet and complicated forms - recommended is casing - magnetic holder.
Possible danger to health – tiny shards of magnets pose a threat, when accidentally swallowed, which is particularly important in the aspect of protecting the youngest. Furthermore, tiny parts of these magnets are able to complicate diagnosis medical after entering the body.
With large orders the cost of neodymium magnets is a challenge,

Holding force characteristics

Highest magnetic holding force – what contributes to it?

The declared magnet strength represents the maximum value, measured under optimal environment, namely:

with the use of a sheet made of low-carbon steel, ensuring maximum field concentration
with a thickness minimum 10 mm
characterized by lack of roughness
with zero gap (without coatings)
under vertical force direction (90-degree angle)
in stable room temperature

Lifting capacity in real conditions – factors

In practice, the real power is determined by many variables, ranked from most significant:

Space between surfaces – every millimeter of separation (caused e.g. by varnish or unevenness) diminishes the pulling force, often by half at just 0.5 mm.
Loading method – catalog parameter refers to detachment vertically. When slipping, the magnet exhibits much less (often approx. 20-30% of maximum force).
Substrate thickness – for full efficiency, the steel must be sufficiently thick. Paper-thin metal restricts the lifting capacity (the magnet "punches through" it).
Plate material – low-carbon steel attracts best. Alloy admixtures reduce magnetic permeability and holding force.
Surface condition – ground elements ensure maximum contact, which increases force. Uneven metal reduce efficiency.
Temperature – temperature increase causes a temporary drop of force. It is worth remembering the maximum operating temperature for a given model.

Lifting capacity was measured with the use of a steel plate with a smooth surface of optimal thickness (min. 20 mm), under perpendicular pulling force, whereas under parallel forces the lifting capacity is smaller. In addition, even a small distance between the magnet’s surface and the plate lowers the holding force.

H&S for magnets

Protect data

Do not bring magnets close to a wallet, laptop, or screen. The magnetism can destroy these devices and erase data from cards.

Risk of cracking

Watch out for shards. Magnets can explode upon uncontrolled impact, ejecting sharp fragments into the air. We recommend safety glasses.

Immense force

Use magnets with awareness. Their immense force can shock even professionals. Be vigilant and do not underestimate their force.

Product not for children

Neodymium magnets are not intended for children. Accidental ingestion of multiple magnets may result in them pinching intestinal walls, which poses a direct threat to life and necessitates immediate surgery.

Dust explosion hazard

Combustion risk: Neodymium dust is explosive. Do not process magnets in home conditions as this risks ignition.

Pinching danger

Risk of injury: The pulling power is so immense that it can cause blood blisters, crushing, and broken bones. Use thick gloves.

Impact on smartphones

A strong magnetic field negatively affects the functioning of magnetometers in smartphones and GPS navigation. Do not bring magnets close to a device to avoid damaging the sensors.

Allergy Warning

Certain individuals have a contact allergy to Ni, which is the standard coating for NdFeB magnets. Prolonged contact can result in dermatitis. We suggest wear safety gloves.

Power loss in heat

Avoid heat. Neodymium magnets are sensitive to heat. If you require operation above 80°C, ask us about HT versions (H, SH, UH).

Medical implants

Life threat: Strong magnets can turn off heart devices and defibrillators. Do not approach if you have electronic implants.

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

MP 16x8/4x3 / N38 - ring magnet

Technical details - MP 16x8/4x3 / N38 - ring magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical modeling of the product - report

Table 1: Static force (pull vs gap) - power drop MP 16x8/4x3 / N38

Table 2: Sliding hold (wall) MP 16x8/4x3 / N38

Table 3: Wall mounting (shearing) - behavior on slippery surfaces MP 16x8/4x3 / N38

Table 4: Steel thickness (saturation) - sheet metal selection MP 16x8/4x3 / N38

Table 5: Thermal resistance (material behavior) - resistance threshold MP 16x8/4x3 / N38

Table 6: Magnet-Magnet interaction (attraction) - field collision MP 16x8/4x3 / N38

Table 7: Protective zones (implants) - precautionary measures MP 16x8/4x3 / N38

Table 8: Collisions (cracking risk) - warning MP 16x8/4x3 / N38

Table 9: Surface protection spec MP 16x8/4x3 / N38

Table 10: Electrical data (Pc) MP 16x8/4x3 / N38

Table 11: Underwater work (magnet fishing) MP 16x8/4x3 / N38

1. Wall mount (shear)

2. Steel thickness impact

3. Thermal stability

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

Elemental analysis

Environmental data

Force (pull)

Field Strength

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MP 62x42x25 / N38 - ring magnet

Pros as well as cons of Nd2Fe14B magnets.

Benefits

Cons

Holding force characteristics

Highest magnetic holding force – what contributes to it?

Lifting capacity in real conditions – factors

H&S for magnets

Protect data

Risk of cracking

Immense force

Product not for children

Dust explosion hazard

Pinching danger

Impact on smartphones

Allergy Warning

Power loss in heat

Medical implants

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (pull vs gap) - power drop
MP 16x8/4x3 / N38

Table 2: Sliding hold (wall)
MP 16x8/4x3 / N38

Table 3: Wall mounting (shearing) - behavior on slippery surfaces
MP 16x8/4x3 / N38

Table 4: Steel thickness (saturation) - sheet metal selection
MP 16x8/4x3 / N38

Table 5: Thermal resistance (material behavior) - resistance threshold
MP 16x8/4x3 / N38

Table 6: Magnet-Magnet interaction (attraction) - field collision
MP 16x8/4x3 / N38

Table 7: Protective zones (implants) - precautionary measures
MP 16x8/4x3 / N38

Table 8: Collisions (cracking risk) - warning
MP 16x8/4x3 / N38

Table 9: Surface protection spec
MP 16x8/4x3 / N38

Table 10: Electrical data (P_c)
MP 16x8/4x3 / N38

Table 11: Underwater work (magnet fishing)
MP 16x8/4x3 / N38

Pros as well as cons of Nd₂Fe₁₄B magnets.