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MP 10x4.3x4 / N38 - ring magnet

Name: Dhit sp. z o.o.
Address: Kościuszki 6A, Ożarów Mazowiecki, mazowieckie, 05-850, PL
Telephone: +48 22 499 98 98
Price range: 1-6500 PLN
Rating: 5

ring magnet

Catalog no 030178

GTIN/EAN: 5906301811954

5.00

Diameter

10 mm [±0,1 mm]

internal diameter Ø

4.3 mm [±0,1 mm]

Height

4 mm [±0,1 mm]

Weight

1.92 g

Magnetization Direction

↑ axial

Load capacity

2.28 kg / 22.35 N

Magnetic Induction

386.91 mT / 3869 Gs

Coating

[NiCuNi] Nickel

product parameters »

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Technical details - MP 10x4.3x4 / N38 - ring magnet

Specification / characteristics - MP 10x4.3x4 / N38 - ring magnet

properties

properties	values
Cat. no.	030178
GTIN/EAN	5906301811954
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	10 mm [±0,1 mm]
internal diameter Ø	4.3 mm [±0,1 mm]
Height	4 mm [±0,1 mm]
Weight	1.92 g
Magnetization Direction	↑ axial
Load capacity ~ ?	2.28 kg / 22.35 N
Magnetic Induction ~ ?	386.91 mT / 3869 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MP 10x4.3x4 / N38 - ring magnet

properties	values	units
remenance Br [min. - max.] ?	12.2-12.6	kGs
remenance Br [min. - max.] ?	1220-1260	mT
coercivity bHc ?	10.8-11.5	kOe
coercivity bHc ?	860-915	kA/m
actual internal force iHc	≥ 12	kOe
actual internal force iHc	≥ 955	kA/m
energy density [min. - max.] ?	36-38	BH max MGOe
energy density [min. - max.] ?	287-303	BH max KJ/m
max. temperature ?	≤ 80	°C

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

properties	values	units
Vickers hardness	≥550	Hv
Density	≥7.4	g/cm³
Curie Temperature TC	312 - 380	°C
Curie Temperature TF	593 - 716	°F
Specific resistance	150	μΩ⋅cm
Bending strength	250	MPa
Compressive strength	1000~1100	MPa
Thermal expansion parallel (∥) to orientation (M)	(3-4) x 10^-6	°C^-1
Thermal expansion perpendicular (⊥) to orientation (M)	-(1-3) x 10^-6	°C^-1
Young's modulus	1.7 x 10⁴	kg/mm²

Technical modeling of the magnet - technical parameters

These information represent the result of a mathematical calculation. Values rely on models for the class Nd₂Fe₁₄B. Real-world performance may differ from theoretical values. Use these data as a preliminary roadmap when designing systems.

Table 1: Static force (pull vs gap) - power drop
MP 10x4.3x4 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	6115 Gs 611.5 mT	2.28 kg / 5.03 lbs 2280.0 g / 22.4 N	warning
1 mm	4915 Gs 491.5 mT	1.47 kg / 3.25 lbs 1473.3 g / 14.5 N	safe
2 mm	3833 Gs 383.3 mT	0.90 kg / 1.97 lbs 895.7 g / 8.8 N	safe
3 mm	2949 Gs 294.9 mT	0.53 kg / 1.17 lbs 530.3 g / 5.2 N	safe
5 mm	1761 Gs 176.1 mT	0.19 kg / 0.42 lbs 189.1 g / 1.9 N	safe
10 mm	612 Gs 61.2 mT	0.02 kg / 0.05 lbs 22.8 g / 0.2 N	safe
15 mm	284 Gs 28.4 mT	0.00 kg / 0.01 lbs 4.9 g / 0.0 N	safe
20 mm	157 Gs 15.7 mT	0.00 kg / 0.00 lbs 1.5 g / 0.0 N	safe
30 mm	64 Gs 6.4 mT	0.00 kg / 0.00 lbs 0.3 g / 0.0 N	safe
50 mm	19 Gs 1.9 mT	0.00 kg / 0.00 lbs 0.0 g / 0.0 N	safe

Pulling power drops sharply with every subsequent millimeter of spacing. Note that even the smallest gap (e.g., dirt, paint, veneer) strongly reduces the pull force. Magnetic products work strongest during direct contact; gap nullifies the power. Analyze how rapidly the pull force plummet, when the magnet does not touch tightly to the steel surface. When planning the assembly, eliminate additional spacers.

Table 2: Vertical capacity (vertical surface)
MP 10x4.3x4 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	0.46 kg / 1.01 lbs 456.0 g / 4.5 N
1 mm	Stal (~0.2)	0.29 kg / 0.65 lbs 294.0 g / 2.9 N
2 mm	Stal (~0.2)	0.18 kg / 0.40 lbs 180.0 g / 1.8 N
3 mm	Stal (~0.2)	0.11 kg / 0.23 lbs 106.0 g / 1.0 N
5 mm	Stal (~0.2)	0.04 kg / 0.08 lbs 38.0 g / 0.4 N
10 mm	Stal (~0.2)	0.00 kg / 0.01 lbs 4.0 g / 0.0 N
15 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 0.0 g / 0.0 N
20 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 0.0 g / 0.0 N
30 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 0.0 g / 0.0 N
50 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 0.0 g / 0.0 N

The table below defines the theoretical force needed to initiate the shifting of the magnet vertically along a vertical metal surface (assuming standard friction coefficient). This parameter is relative to the air gap between the magnet and the surface.

Table 3: Vertical assembly (sliding) - vertical pull
MP 10x4.3x4 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	0.68 kg / 1.51 lbs 684.0 g / 6.7 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.46 kg / 1.01 lbs 456.0 g / 4.5 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.23 kg / 0.50 lbs 228.0 g / 2.2 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	1.14 kg / 2.51 lbs 1140.0 g / 11.2 N

When placing a magnet on a upright surface (e.g., a fridge), it will only hold just about 1/5 of its nominal power. Gravitational force as well as a low friction coefficient mean that products move down easier than they detach. Designing a vertical fastening? Note that the shear force is noticeably lower than the maximum static pull force. On a painted metal, the element will slide down under a significantly smaller cargo. Application of an anti-slip layer can drastically improve the result.

Table 4: Material efficiency (saturation) - power losses
MP 10x4.3x4 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.23 kg / 0.50 lbs 228.0 g / 2.2 N
1 mm	25%	0.57 kg / 1.26 lbs 570.0 g / 5.6 N
2 mm	50%	1.14 kg / 2.51 lbs 1140.0 g / 11.2 N
3 mm	75%	1.71 kg / 3.77 lbs 1710.0 g / 16.8 N
5 mm	100%	2.28 kg / 5.03 lbs 2280.0 g / 22.4 N
10 mm	100%	2.28 kg / 5.03 lbs 2280.0 g / 22.4 N
11 mm	100%	2.28 kg / 5.03 lbs 2280.0 g / 22.4 N
12 mm	100%	2.28 kg / 5.03 lbs 2280.0 g / 22.4 N

A thin metal plate is not enough to take in the entire magnetic field, which wastes potential of the magnet. If you mount a strong magnet to a too thin substrate, the flux will pass right through and the attraction force will be weaker. To utilize full efficiency of this neodymium's potential, you need a suitably thick backing of steel. The saturation effect means that on sheet metal structures (e.g., thin profiles), the magnet shows lower pull force. We suggest choosing the steel cross-section based on the following data.

Table 5: Thermal resistance (material behavior) - power drop
MP 10x4.3x4 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	2.28 kg / 5.03 lbs 2280.0 g / 22.4 N	OK
40 °C	-2.2%	2.23 kg / 4.92 lbs 2229.8 g / 21.9 N	OK
60 °C	-4.4%	2.18 kg / 4.81 lbs 2179.7 g / 21.4 N	OK
80 °C	-6.6%	2.13 kg / 4.69 lbs 2129.5 g / 20.9 N
100 °C	-28.8%	1.62 kg / 3.58 lbs 1623.4 g / 15.9 N

Classic neodymiums change their properties strength past the thermal threshold. Protect against heat – heat can irreversibly damage this product. With every degree above norm, the magnet's force momentarily decreases. Avoid using this product close to heaters higher than its working range. Too high temperature will cause destruction of magnetism.

*Important note: Temperature resistance depends not only on the material grade, as well as the dimension ratios. Thin magnets (low permeance coefficient) may lose charge permanently sooner than taller cylinders. The danger warning in the table signals permanent field degradation for this particular item.

Table 6: Two magnets (attraction) - field range
MP 10x4.3x4 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Sliding Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	12.93 kg / 28.50 lbs 6 169 Gs	1.94 kg / 4.27 lbs 1939 g / 19.0 N	N/A
1 mm	10.50 kg / 23.16 lbs 11 025 Gs	1.58 kg / 3.47 lbs 1576 g / 15.5 N	9.45 kg / 20.84 lbs ~0 Gs
2 mm	8.35 kg / 18.41 lbs 9 831 Gs	1.25 kg / 2.76 lbs 1253 g / 12.3 N	7.52 kg / 16.57 lbs ~0 Gs
3 mm	6.55 kg / 14.43 lbs 8 703 Gs	0.98 kg / 2.17 lbs 982 g / 9.6 N	5.89 kg / 12.99 lbs ~0 Gs
5 mm	3.91 kg / 8.63 lbs 6 729 Gs	0.59 kg / 1.29 lbs 587 g / 5.8 N	3.52 kg / 7.76 lbs ~0 Gs
10 mm	1.07 kg / 2.36 lbs 3 522 Gs	0.16 kg / 0.35 lbs 161 g / 1.6 N	0.96 kg / 2.13 lbs ~0 Gs
20 mm	0.13 kg / 0.29 lbs 1 223 Gs	0.02 kg / 0.04 lbs 19 g / 0.2 N	0.12 kg / 0.26 lbs ~0 Gs
50 mm	0.00 kg / 0.01 lbs 194 Gs	0.00 kg / 0.00 lbs 0 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs
60 mm	0.00 kg / 0.00 lbs 129 Gs	0.00 kg / 0.00 lbs 0 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs
70 mm	0.00 kg / 0.00 lbs 91 Gs	0.00 kg / 0.00 lbs 0 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs
80 mm	0.00 kg / 0.00 lbs 66 Gs	0.00 kg / 0.00 lbs 0 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs
90 mm	0.00 kg / 0.00 lbs 50 Gs	0.00 kg / 0.00 lbs 0 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs
100 mm	0.00 kg / 0.00 lbs 39 Gs	0.00 kg / 0.00 lbs 0 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs

Two magnetic products attract each other from a wider radius than a magnet and steel combination. The connection of two magnets creates a more powerful interaction and a wider radius of operation. Designing a solid fastener? Apply two magnets instead of one magnet and a striker plate. Exercise caution that when bringing together two magnets, the pinch force is extreme. The repulsion force is marginally weaker than the connection force, but still large.
*Flux density between like poles is approximately ~0 Gs in the exact middle of the gap (resulting from vector opposition).
Attention: Estimates show shear force of two matching neodymium magnets (friction ~0.15 for Ni-Ni layer).

Table 7: Safety (HSE) (implants) - warnings
MP 10x4.3x4 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	9.0 cm
Hearing aid	10 Gs (1.0 mT)	7.0 cm
Mechanical watch	20 Gs (2.0 mT)	5.0 cm
Phone / Smartphone	40 Gs (4.0 mT)	4.0 cm
Car key	50 Gs (5.0 mT)	3.5 cm
Payment card	400 Gs (40.0 mT)	1.5 cm
HDD hard drive	600 Gs (60.0 mT)	1.5 cm

Powerful magnet radiation is a real danger to electronics and pacemakers. These neodymiums produce a flux that prevents correct functioning of sensitive medical devices. Be aware: the unseen radiation passes through tissues and glass. Special caution must be exercised by people with cochlear implants and insulin pumps. Also at risk are: automatic timepieces, remotes, membranes, and displays. Avoid contact with magnetic cards, HDD media, or precise measuring instruments.

Table 8: Dynamics (cracking risk) - warning
MP 10x4.3x4 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	34.97 km/h (9.71 m/s)	0.09 J
30 mm	60.20 km/h (16.72 m/s)	0.27 J
50 mm	77.71 km/h (21.59 m/s)	0.45 J
100 mm	109.90 km/h (30.53 m/s)	0.89 J

Magnetic elements are very brittle – a violent impact against metal causes immediate chipping. Pay attention to connection velocity – a neodymium left loose becomes dangerous. Kinetic force can destroy the magnet or injury to skin. Be sure to control the product during installation so it doesn't slam with momentum against the metal. A contact at a velocity of dozens of km/h almost guarantees destruction of the neodymium. Use safety goggles when playing with large magnets.

Table 9: Anti-corrosion coating durability
MP 10x4.3x4 / 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 following table defines the conditions under which this product can be safely used. Improper coating selection is the most common cause of magnet failure over time.

Table 10: Construction data (P_c)
MP 10x4.3x4 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	4 017 Mx	40.2 µWb
P_c Coefficient	1.44	High (Stable)

Total magnetic flux emitted by the magnet pole. Key data when building generators as well as sensors. The P_c coefficient defines the working geometry.

Table 11: Physics of underwater searching
MP 10x4.3x4 / N38

Environment	Effective steel pull	Effect
Air (land)	2.28 kg	Standard
Water (riverbed)	2.61 kg (+0.33 kg buoyancy gain)	+14.5%

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

Contrary to myths, water does not block the magnetic field. However, remember the water resistance when pulling the rope quickly.

1. Wall mount (shear)

*Warning: On a vertical wall, the magnet holds just approx. 20-30% of its nominal pull.

2. Plate thickness effect

*Thin steel (e.g. 0.5mm PC case) drastically reduces 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) = 1.44

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.

Technical specification and ecology

Material specification

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: 030178-2026

Measurement Calculator

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The ring magnet with a hole MP 10x4.3x4 / N38 is created for permanent mounting, where glue might fail or be insufficient. Thanks to the hole (often for a screw), this model enables quick installation to wood, wall, plastic, or metal. 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 10x4.3x4 / 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. 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. Damage to the protective layer during assembly is the most common cause of rusting. This product is dedicated for indoor use. For outdoor applications, we recommend choosing magnets in hermetic housing or additional protection with varnish.

A screw or bolt with a thread diameter smaller than 4.3 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 (10 mm), so it doesn't protrude beyond the outline.

The presented product is a ring magnet with dimensions Ø10 mm (outer diameter) and height 4 mm. The key parameter here is the holding force amounting to approximately 2.28 kg (force ~22.35 N). The product has a [NiCuNi] coating and is made of NdFeB material. Inner hole dimension: 4.3 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.

Strengths as well as weaknesses of Nd₂Fe₁₄B magnets.

Strengths

In addition to their pulling strength, neodymium magnets provide the following advantages:

They do not lose strength, even during approximately ten years – the drop in lifting capacity is only ~1% (theoretically),
Magnets effectively resist against demagnetization caused by foreign field sources,
In other words, due to the shiny finish of nickel, the element becomes visually attractive,
The surface of neodymium magnets generates a concentrated magnetic field – this is a distinguishing feature,
Due to their durability and thermal resistance, neodymium magnets are capable of operate (depending on the form) even at high temperatures reaching 230°C or more...
Possibility of detailed shaping as well as adjusting to specific needs,
Key role in modern technologies – they are used in hard drives, electromotive mechanisms, medical devices, as well as multitasking production systems.
Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in tiny dimensions, which enables their usage in miniature devices

Weaknesses

Drawbacks and weaknesses of neodymium magnets and proposals for their use:

They are fragile upon heavy impacts. To avoid cracks, it is worth protecting magnets in special housings. Such protection not only shields the magnet but also improves its resistance to damage
Neodymium magnets lose their strength under the influence of heating. As soon as 80°C is exceeded, many of them start losing their force. Therefore, we recommend our special magnets marked [AH], which maintain durability even at temperatures up to 230°C
They rust in a humid environment. For use outdoors we recommend using waterproof magnets e.g. in rubber, plastic
Limited ability of making nuts in the magnet and complicated shapes - recommended is cover - magnet mounting.
Health risk to health – tiny shards of magnets are risky, in case of ingestion, which becomes key in the context of child safety. Furthermore, small elements of these devices can disrupt the diagnostic process medical when they are in the body.
High unit price – neodymium magnets have a higher price than other types of magnets (e.g. ferrite), which increases costs of application in large quantities

Pull force analysis

Maximum lifting capacity of the magnet – what contributes to it?

Breakaway force was defined for the most favorable conditions, assuming:

with the use of a yoke made of special test steel, guaranteeing full magnetic saturation
possessing a thickness of at least 10 mm to avoid saturation
with a surface cleaned and smooth
without any air gap between the magnet and steel
under vertical force direction (90-degree angle)
in neutral thermal conditions

Lifting capacity in practice – influencing factors

Please note that the application force will differ influenced by the following factors, starting with the most relevant:

Space between magnet and steel – even a fraction of a millimeter of distance (caused e.g. by veneer or unevenness) drastically reduces the pulling force, often by half at just 0.5 mm.
Force direction – declared lifting capacity refers to pulling vertically. When attempting to slide, the magnet exhibits significantly lower power (often approx. 20-30% of nominal force).
Element thickness – for full efficiency, the steel must be sufficiently thick. Thin sheet limits the attraction force (the magnet "punches through" it).
Steel type – low-carbon steel attracts best. Alloy admixtures lower magnetic properties and holding force.
Base smoothness – the more even the surface, the larger the contact zone and stronger the hold. Roughness creates an air distance.
Thermal environment – heating the magnet causes a temporary drop of induction. It is worth remembering the thermal limit for a given model.

Lifting capacity was determined using a steel plate with a smooth surface of suitable thickness (min. 20 mm), under vertically applied force, in contrast under shearing force the load capacity is reduced by as much as 75%. Additionally, even a small distance between the magnet and the plate reduces the lifting capacity.

Precautions when working with neodymium magnets

Power loss in heat

Monitor thermal conditions. Heating the magnet to high heat will ruin its properties and pulling force.

Crushing risk

Big blocks can crush fingers in a fraction of a second. Under no circumstances put your hand between two attracting surfaces.

Electronic hazard

Intense magnetic fields can corrupt files on credit cards, HDDs, and storage devices. Stay away of min. 10 cm.

Sensitization to coating

A percentage of the population suffer from a contact allergy to nickel, which is the common plating for NdFeB magnets. Frequent touching can result in an allergic reaction. We suggest wear protective gloves.

Phone sensors

An intense magnetic field disrupts the operation of magnetometers in smartphones and GPS navigation. Keep magnets near a device to avoid breaking the sensors.

Safe operation

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

Adults only

NdFeB magnets are not intended for children. Swallowing a few magnets may result in them connecting inside the digestive tract, which constitutes a severe health hazard and necessitates urgent medical intervention.

Fire warning

Machining of NdFeB material carries a risk of fire hazard. Neodymium dust reacts violently with oxygen and is difficult to extinguish.

Eye protection

Neodymium magnets are sintered ceramics, meaning they are fragile like glass. Clashing of two magnets will cause them breaking into shards.

Danger to pacemakers

Patients with a ICD have to keep an absolute distance from magnets. The magnetic field can disrupt the functioning of the life-saving device.

Caution! Learn more about hazards in the article: Magnet Safety Guide.

MP 10x4.3x4 / N38 - ring magnet

Technical details - MP 10x4.3x4 / N38 - ring magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Technical modeling of the magnet - technical parameters

Table 1: Static force (pull vs gap) - power drop MP 10x4.3x4 / N38

Table 2: Vertical capacity (vertical surface) MP 10x4.3x4 / N38

Table 3: Vertical assembly (sliding) - vertical pull MP 10x4.3x4 / N38

Table 4: Material efficiency (saturation) - power losses MP 10x4.3x4 / N38

Table 5: Thermal resistance (material behavior) - power drop MP 10x4.3x4 / N38

Table 6: Two magnets (attraction) - field range MP 10x4.3x4 / N38

Table 7: Safety (HSE) (implants) - warnings MP 10x4.3x4 / N38

Table 8: Dynamics (cracking risk) - warning MP 10x4.3x4 / N38

Table 9: Anti-corrosion coating durability MP 10x4.3x4 / N38

Table 10: Construction data (Pc) MP 10x4.3x4 / N38

Table 11: Physics of underwater searching MP 10x4.3x4 / N38

1. Wall mount (shear)

2. Plate thickness effect

3. Heat tolerance

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

Material specification

Environmental data

Magnet pull force

Magnetic Field

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Strengths as well as weaknesses of Nd2Fe14B magnets.

Strengths

Weaknesses

Pull force analysis

Maximum lifting capacity of the magnet – what contributes to it?

Lifting capacity in practice – influencing factors

Precautions when working with neodymium magnets

Power loss in heat

Crushing risk

Electronic hazard

Sensitization to coating

Phone sensors

Safe operation

Adults only

Fire warning

Eye protection

Danger to pacemakers

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (pull vs gap) - power drop
MP 10x4.3x4 / N38

Table 2: Vertical capacity (vertical surface)
MP 10x4.3x4 / N38

Table 3: Vertical assembly (sliding) - vertical pull
MP 10x4.3x4 / N38

Table 4: Material efficiency (saturation) - power losses
MP 10x4.3x4 / N38

Table 5: Thermal resistance (material behavior) - power drop
MP 10x4.3x4 / N38

Table 6: Two magnets (attraction) - field range
MP 10x4.3x4 / N38

Table 7: Safety (HSE) (implants) - warnings
MP 10x4.3x4 / N38

Table 8: Dynamics (cracking risk) - warning
MP 10x4.3x4 / N38

Table 9: Anti-corrosion coating durability
MP 10x4.3x4 / N38

Table 10: Construction data (P_c)
MP 10x4.3x4 / N38

Table 11: Physics of underwater searching
MP 10x4.3x4 / N38

Strengths as well as weaknesses of Nd₂Fe₁₄B magnets.