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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

view technical data »

2.50 ZŁ with VAT / pcs + price for transport

2.03 ZŁ net + 23% VAT / pcs

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Product card - 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

Technical modeling of the assembly - report

Presented information constitute the direct effect of a mathematical simulation. Values were calculated on models for the material Nd₂Fe₁₄B. Real-world conditions may deviate from the simulation results. Use these data as a preliminary roadmap for designers.

Table 1: Static force (force vs gap) - characteristics
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 LBS 2780.0 g / 27.3 N	warning
1 mm	1746 Gs 174.6 mT	2.39 kg / 5.27 LBS 2392.4 g / 23.5 N	warning
2 mm	1561 Gs 156.1 mT	1.91 kg / 4.22 LBS 1913.9 g / 18.8 N	low risk
3 mm	1357 Gs 135.7 mT	1.45 kg / 3.19 LBS 1445.8 g / 14.2 N	low risk
5 mm	969 Gs 96.9 mT	0.74 kg / 1.63 LBS 737.7 g / 7.2 N	low risk
10 mm	387 Gs 38.7 mT	0.12 kg / 0.26 LBS 117.4 g / 1.2 N	low risk
15 mm	171 Gs 17.1 mT	0.02 kg / 0.05 LBS 22.9 g / 0.2 N	low risk
20 mm	87 Gs 8.7 mT	0.01 kg / 0.01 LBS 5.9 g / 0.1 N	low risk
30 mm	30 Gs 3.0 mT	0.00 kg / 0.00 LBS 0.7 g / 0.0 N	low risk
50 mm	7 Gs 0.7 mT	0.00 kg / 0.00 LBS 0.0 g / 0.0 N	low risk

Magnetic force weakens significantly with every mm of spacing. Remember that even a microscopic distance (e.g., dirt, varnish, dust) significantly reduces the pull force. Magnetic products operate most effectively at the point of direct contact; distance nullifies the power. See how quickly the parameters plummet, when the product does not touch directly to the steel surface. When planning the assembly, eliminate unnecessary gaps.

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 LBS 556.0 g / 5.5 N
1 mm	Stal (~0.2)	0.48 kg / 1.05 LBS 478.0 g / 4.7 N
2 mm	Stal (~0.2)	0.38 kg / 0.84 LBS 382.0 g / 3.7 N
3 mm	Stal (~0.2)	0.29 kg / 0.64 LBS 290.0 g / 2.8 N
5 mm	Stal (~0.2)	0.15 kg / 0.33 LBS 148.0 g / 1.5 N
10 mm	Stal (~0.2)	0.02 kg / 0.05 LBS 24.0 g / 0.2 N
15 mm	Stal (~0.2)	0.00 kg / 0.01 LBS 4.0 g / 0.0 N
20 mm	Stal (~0.2)	0.00 kg / 0.00 LBS 2.0 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 indicates the approximate force sufficient to cause the downward movement of the magnet down on a upright steel plate (assuming standard friction). The holding force depends on the air gap between the magnet and the surface.

Table 3: Vertical assembly (sliding) - 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 LBS 834.0 g / 8.2 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.56 kg / 1.23 LBS 556.0 g / 5.5 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.28 kg / 0.61 LBS 278.0 g / 2.7 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	1.39 kg / 3.06 LBS 1390.0 g / 13.6 N

When mounting a holder on a vertical surface (e.g., a car body), it will maintain just about 1/5 of its maximum pull force. Gravity and a weak degree of grip mean that holders move down faster than they pop off the substrate. Designing a wall mount? Remember that the shear force is much weaker than the maximum static pull force. On a painted metal, the element will slip down under a significantly smaller load. Application of an anti-slip pad can significantly raise the stability.

Table 4: Steel thickness (substrate influence) - 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 LBS 278.0 g / 2.7 N
1 mm	25%	0.70 kg / 1.53 LBS 695.0 g / 6.8 N
2 mm	50%	1.39 kg / 3.06 LBS 1390.0 g / 13.6 N
3 mm	75%	2.09 kg / 4.60 LBS 2085.0 g / 20.5 N
5 mm	100%	2.78 kg / 6.13 LBS 2780.0 g / 27.3 N
10 mm	100%	2.78 kg / 6.13 LBS 2780.0 g / 27.3 N
11 mm	100%	2.78 kg / 6.13 LBS 2780.0 g / 27.3 N
12 mm	100%	2.78 kg / 6.13 LBS 2780.0 g / 27.3 N

A too thin steel is incapable of conduct the entire magnetic field, which wastes potential of the magnet. If you mount a strong magnet to a too thin substrate, the flux will penetrate right through and the attraction force will be weaker. To utilize the maximum of this magnet's power, you need a suitably thick backing of steel. The saturation phenomenon means that on thin elements (e.g., car bodies), the magnet shows lower pull force. We suggest choosing the steel cross-section based on the following data.

Table 5: Thermal stability (stability) - thermal limit
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 LBS 2780.0 g / 27.3 N	OK
40 °C	-2.2%	2.72 kg / 5.99 LBS 2718.8 g / 26.7 N	OK
60 °C	-4.4%	2.66 kg / 5.86 LBS 2657.7 g / 26.1 N
80 °C	-6.6%	2.60 kg / 5.72 LBS 2596.5 g / 25.5 N
100 °C	-28.8%	1.98 kg / 4.36 LBS 1979.4 g / 19.4 N

Standard neodymium magnets lose parameters above the temperature limit. Protect against heat – high temperature can irreversibly destroy this product. As the temperature rises, the neodymium's force temporarily lowers. Avoid using this magnet close to ovens higher than its working range. Ignoring the limit will lead to destruction of magnetic properties.

*Technical advisory: Temperature resistance is determined by both grade, but also on the magnet's shape. Low-profile magnets (low permeance coefficient) risk losing magnetic properties sooner than long magnets. Red status in the table indicates a risk of irreversible loss for this specific geometry.

Table 6: Two magnets (repulsion) - forces in the system
MP 16x8/4x3 / N38

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

Two strong neodymiums interact from a much further distance than a magnet and sheet setup. The setup of magnet-to-magnet produces a massive flux and a larger range of performance. Want to build a strong closure? Use a pair of magnets instead of a neodymium and a steel. Exercise caution that when connecting a pair of magnets, the impact force is extreme. The levitation is slightly lower than the connection force, but still impressive.
*Flux density between like poles reaches ~0 Gs at the geometric center of the gap (due to field cancellation).
Attention: Results apply to shear force of a pair of matching magnets (friction coefficient ~0.15 for Ni-Ni plating).

Table 7: Protective zones (implants) - warnings
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
Mobile device	40 Gs (4.0 mT)	3.0 cm
Remote	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 and 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 drug dispensers. Influence will be felt by: automatic timepieces, car keys, membranes, and screens. Do not bring the product near payment cards, hard drives, or precise measuring instruments.

Table 8: Dynamics (kinetic energy) - collision effects
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

Neodymium magnets are very brittle – a strong collision with metal causes immediate chipping. Control the attraction moment – a neodymium left loose turns into a projectile. Kinetic force can cause material chips or painful pinches to skin. Hold the magnet firmly during installation so it doesn't slam with momentum 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 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)

For outdoor applications, an epoxy coating is required; standard nickel is intended for indoor use. Improper coating selection is the most common cause of magnet failure over time.

Table 10: Construction 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. Essential parameter when building generators as well as sensors. The P_c coefficient defines the working geometry.

Table 11: Physics of underwater searching
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%

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

In water, the magnet feels stronger thanks to Archimedes' principle. Buoyancy helps in lifting finds.

1. Wall mount (shear)

*Caution: On a vertical surface, the magnet holds only ~20% of its max power.

2. Steel thickness impact

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

3. Heat tolerance

*For N38 material, 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

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 and environmental data

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: 030396-2026

Magnet Unit Converter

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Newtons (N)

Force in lbs

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MP 15x7/3.5x5 / N38 - ring magnet

3.44 ZŁ brutto / pcs

It is ideally suited for places where solid attachment of the magnet to the substrate is required without the risk of detachment. Thanks to the hole (often for a screw), this model enables easy screwing to wood, wall, plastic, or metal. This product with a force of 2.78 kg works great as a door latch, speaker holder, or mounting element in devices.

This material behaves more like porcelain than steel, so it doesn't forgive mistakes during mounting. When tightening the screw, you must maintain great sensitivity. We recommend tightening manually with a screwdriver, not an impact driver, because too much pressure will cause the ring to crack. The flat screw head should evenly press the magnet. Remember: cracking during assembly results from material properties, not a product defect.

These magnets are coated with standard Ni-Cu-Ni plating, which protects them in indoor conditions, but is not sufficient for rain. In the place of the mounting hole, the coating is thinner and easily scratched when tightening the screw, which will become a corrosion focus. If you must use it outside, paint it with anti-corrosion paint after mounting.

The inner hole diameter determines the maximum size of the mounting element. 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. Aesthetic mounting requires selecting the appropriate head size.

This model is characterized by dimensions Ø16x3 mm and a weight of 4.24 g. The pulling force of this model is an impressive 2.78 kg, which translates to 27.29 N in newtons. The product has a [NiCuNi] coating and is made of NdFeB material. Inner hole dimension: 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. When ordering a larger quantity, magnets are usually packed in stacks, where they are already naturally paired.

Strengths as well as weaknesses of Nd₂Fe₁₄B magnets.

Strengths

Apart from their strong holding force, neodymium magnets have these key benefits:

They do not lose magnetism, even after approximately ten years – the drop in lifting capacity is only ~1% (theoretically),
They feature excellent resistance to magnetism drop due to external fields,
In other words, due to the aesthetic layer of silver, the element becomes visually attractive,
Magnets possess exceptionally strong magnetic induction on the working surface,
Through (appropriate) combination of ingredients, they can achieve high thermal strength, allowing for action at temperatures approaching 230°C and above...
In view of the option of precise shaping and customization to custom needs, neodymium magnets can be modeled in a broad palette of shapes and sizes, which amplifies use scope,
Wide application in innovative solutions – they are used in HDD drives, electromotive mechanisms, medical devices, as well as modern systems.
Compactness – despite small sizes they generate large force, making them ideal for precision applications

Disadvantages

Disadvantages of NdFeB magnets:

They are prone to damage upon heavy impacts. To avoid cracks, it is worth protecting magnets in a protective case. Such protection not only protects the magnet but also improves its resistance to damage
When exposed to high temperature, neodymium magnets experience a drop in strength. Often, when the temperature exceeds 80°C, their strength decreases (depending on the size and shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
Due to the susceptibility of magnets to corrosion in a humid environment, we suggest using waterproof magnets made of rubber, plastic or other material resistant to moisture, in case of application outdoors
We suggest cover - magnetic mount, due to difficulties in creating threads inside the magnet and complicated forms.
Potential hazard related to microscopic parts of magnets can be dangerous, if swallowed, which is particularly important in the aspect of protecting the youngest. Furthermore, small elements of these magnets can be problematic in diagnostics medical after entering the body.
High unit price – neodymium magnets have a higher price than other types of magnets (e.g. ferrite), which hinders application in large quantities

Holding force characteristics

Maximum lifting capacity of the magnet – what it depends on?

The force parameter is a result of laboratory testing conducted under specific, ideal conditions:

with the use of a yoke made of special test steel, ensuring maximum field concentration
with a cross-section of at least 10 mm
with an ground contact surface
with total lack of distance (no coatings)
for force acting at a right angle (in the magnet axis)
in temp. approx. 20°C

Impact of factors on magnetic holding capacity in practice

Bear in mind that the magnet holding will differ influenced by elements below, starting with the most relevant:

Air gap (between the magnet and the metal), because even a very small clearance (e.g. 0.5 mm) can cause a decrease in force by up to 50% (this also applies to paint, corrosion or dirt).
Force direction – declared lifting capacity refers to pulling vertically. When applying parallel force, the magnet holds significantly lower power (often approx. 20-30% of maximum force).
Substrate thickness – for full efficiency, the steel must be adequately massive. Paper-thin metal limits the lifting capacity (the magnet "punches through" it).
Material type – the best choice is high-permeability steel. Stainless steels may attract less.
Surface quality – the smoother and more polished the surface, the larger the contact zone and stronger the hold. Roughness acts like micro-gaps.
Temperature – temperature increase results in weakening of induction. Check the maximum operating temperature for a given model.

Lifting capacity was determined using a steel plate with a smooth surface of suitable thickness (min. 20 mm), under perpendicular pulling force, in contrast under parallel forces the load capacity is reduced by as much as 75%. Additionally, even a slight gap between the magnet’s surface and the plate decreases the holding force.

Precautions when working with neodymium magnets

Nickel coating and allergies

Allergy Notice: The nickel-copper-nickel coating contains nickel. If skin irritation occurs, immediately stop working with magnets and use protective gear.

Electronic devices

Powerful magnetic fields can corrupt files on payment cards, HDDs, and other magnetic media. Keep a distance of at least 10 cm.

Bodily injuries

Large magnets can crush fingers instantly. Under no circumstances place your hand betwixt two strong magnets.

Danger to the youngest

Only for adults. Small elements can be swallowed, leading to severe trauma. Keep away from children and animals.

Caution required

Handle magnets consciously. Their huge power can shock even professionals. Be vigilant and do not underestimate their force.

Danger to pacemakers

For implant holders: Strong magnetic fields affect medical devices. Keep minimum 30 cm distance or request help to handle the magnets.

Keep away from electronics

Remember: neodymium magnets generate a field that disrupts precision electronics. Maintain a safe distance from your phone, device, and GPS.

Magnet fragility

Despite the nickel coating, neodymium is brittle and not impact-resistant. Do not hit, as the magnet may crumble into sharp, dangerous pieces.

Machining danger

Machining of NdFeB material poses a fire risk. Magnetic powder oxidizes rapidly with oxygen and is difficult to extinguish.

Heat sensitivity

Regular neodymium magnets (grade N) lose power when the temperature goes above 80°C. Damage is permanent.

Security! Need more info? Read our article: Why are neodymium magnets dangerous?

MP 16x8/4x3 / N38 - ring magnet

Product card - MP 16x8/4x3 / N38 - ring magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Technical modeling of the assembly - report

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

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

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces MP 16x8/4x3 / N38

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

Table 5: Thermal stability (stability) - thermal limit MP 16x8/4x3 / N38

Table 6: Two magnets (repulsion) - forces in the system MP 16x8/4x3 / N38

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

Table 8: Dynamics (kinetic energy) - collision effects MP 16x8/4x3 / N38

Table 9: Anti-corrosion coating durability MP 16x8/4x3 / N38

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

Table 11: Physics of underwater searching MP 16x8/4x3 / N38

1. Wall mount (shear)

2. Steel thickness impact

3. Heat tolerance

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

Elemental analysis

Sustainability

Force (pull)

Magnetic Induction

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MP 15x7/3.5x5 / N38 - ring magnet

Strengths as well as weaknesses of Nd2Fe14B magnets.

Strengths

Disadvantages

Holding force characteristics

Maximum lifting capacity of the magnet – what it depends on?

Impact of factors on magnetic holding capacity in practice

Precautions when working with neodymium magnets

Nickel coating and allergies

Electronic devices

Bodily injuries

Danger to the youngest

Caution required

Danger to pacemakers

Keep away from electronics

Magnet fragility

Machining danger

Heat sensitivity

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

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

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

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces
MP 16x8/4x3 / N38

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

Table 5: Thermal stability (stability) - thermal limit
MP 16x8/4x3 / N38

Table 6: Two magnets (repulsion) - forces in the system
MP 16x8/4x3 / N38

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

Table 8: Dynamics (kinetic energy) - collision effects
MP 16x8/4x3 / N38

Table 9: Anti-corrosion coating durability
MP 16x8/4x3 / N38

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

Table 11: Physics of underwater searching
MP 16x8/4x3 / N38

Strengths as well as weaknesses of Nd₂Fe₁₄B magnets.