MP 14x8/4x3 / N38 - ring magnet - ujęcie 2

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MP 14x8/4x3 / 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 030181

GTIN/EAN: 5906301811985

5.00

Diameter

14 mm [±0,1 mm]

internal diameter Ø

8/4 mm [±0,1 mm]

Height

3 mm [±0,1 mm]

Weight

3.18 g

Magnetization Direction

↑ axial

Load capacity

2.53 kg / 24.85 N

Magnetic Induction

244.11 mT / 2441 Gs

Coating

[NiCuNi] Nickel

product parameters »

2.47 ZŁ with VAT / pcs + price for transport

2.01 ZŁ net + 23% VAT / pcs

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Pick up the phone and ask +48 22 499 98 98 or let us know using request form our website.
Strength along with structure of neodymium magnets can be estimated using our online calculation tool.

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Physical properties - MP 14x8/4x3 / N38 - ring magnet

Specification / characteristics - MP 14x8/4x3 / N38 - ring magnet

properties

properties	values
Cat. no.	030181
GTIN/EAN	5906301811985
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	14 mm [±0,1 mm]
internal diameter Ø	8/4 mm [±0,1 mm]
Height	3 mm [±0,1 mm]
Weight	3.18 g
Magnetization Direction	↑ axial
Load capacity ~ ?	2.53 kg / 24.85 N
Magnetic Induction ~ ?	244.11 mT / 2441 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MP 14x8/4x3 / 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 analysis of the product - report

Presented information are the result of a engineering simulation. Values are based on models for the material Nd₂Fe₁₄B. Actual conditions may differ. Please consider these data as a supplementary guide for designers.

Table 1: Static force (pull vs gap) - characteristics
MP 14x8/4x3 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	2121 Gs 212.1 mT	2.53 kg / 5.58 lbs 2530.0 g / 24.8 N	medium risk
1 mm	1927 Gs 192.7 mT	2.09 kg / 4.61 lbs 2090.1 g / 20.5 N	medium risk
2 mm	1676 Gs 167.6 mT	1.58 kg / 3.48 lbs 1579.6 g / 15.5 N	weak grip
3 mm	1410 Gs 141.0 mT	1.12 kg / 2.46 lbs 1117.9 g / 11.0 N	weak grip
5 mm	943 Gs 94.3 mT	0.50 kg / 1.10 lbs 500.1 g / 4.9 N	weak grip
10 mm	335 Gs 33.5 mT	0.06 kg / 0.14 lbs 63.3 g / 0.6 N	weak grip
15 mm	140 Gs 14.0 mT	0.01 kg / 0.02 lbs 11.1 g / 0.1 N	weak grip
20 mm	69 Gs 6.9 mT	0.00 kg / 0.01 lbs 2.7 g / 0.0 N	weak grip
30 mm	24 Gs 2.4 mT	0.00 kg / 0.00 lbs 0.3 g / 0.0 N	weak grip
50 mm	6 Gs 0.6 mT	0.00 kg / 0.00 lbs 0.0 g / 0.0 N	weak grip

Magnetic force decreases significantly with every subsequent millimeter of spacing. Remember that even a microscopic distance (e.g., contamination, varnish, veneer) strongly weakens the grip. Magnetic products hold most effectively during direct contact; air break nullifies the power. Notice how flashily the load capacity plummet, when the magnet does not adhere directly to the steel surface. When planning the arrangement, eliminate additional spacers.

Table 2: Sliding force (vertical surface)
MP 14x8/4x3 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	0.51 kg / 1.12 lbs 506.0 g / 5.0 N
1 mm	Stal (~0.2)	0.42 kg / 0.92 lbs 418.0 g / 4.1 N
2 mm	Stal (~0.2)	0.32 kg / 0.70 lbs 316.0 g / 3.1 N
3 mm	Stal (~0.2)	0.22 kg / 0.49 lbs 224.0 g / 2.2 N
5 mm	Stal (~0.2)	0.10 kg / 0.22 lbs 100.0 g / 1.0 N
10 mm	Stal (~0.2)	0.01 kg / 0.03 lbs 12.0 g / 0.1 N
15 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 2.0 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 following data presents the theoretical shear load necessary to start the slippage of the magnet downwards against a vertical steel plate (considering typical friction). The holding force depends on the separation distance between the magnet and the metal.

Table 3: Vertical assembly (sliding) - vertical pull
MP 14x8/4x3 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	0.76 kg / 1.67 lbs 759.0 g / 7.4 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.51 kg / 1.12 lbs 506.0 g / 5.0 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.25 kg / 0.56 lbs 253.0 g / 2.5 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	1.27 kg / 2.79 lbs 1265.0 g / 12.4 N

When hanging a element on a vertical surface (e.g., a fridge), it will maintain only approx. 20%-30% of nominal attraction strength. Gravitational force as well as a weak degree of grip influence the fact that products slide down easier than they detach. Want to create a vertical fastening? Consider that the sliding force is significantly lower than the maximum static pull force. On a painted metal, the element will give way down under a significantly smaller cargo. Using a rubber coating can significantly improve the result.

Table 4: Material efficiency (saturation) - sheet metal selection
MP 14x8/4x3 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.25 kg / 0.56 lbs 253.0 g / 2.5 N
1 mm	25%	0.63 kg / 1.39 lbs 632.5 g / 6.2 N
2 mm	50%	1.27 kg / 2.79 lbs 1265.0 g / 12.4 N
3 mm	75%	1.90 kg / 4.18 lbs 1897.5 g / 18.6 N
5 mm	100%	2.53 kg / 5.58 lbs 2530.0 g / 24.8 N
10 mm	100%	2.53 kg / 5.58 lbs 2530.0 g / 24.8 N
11 mm	100%	2.53 kg / 5.58 lbs 2530.0 g / 24.8 N
12 mm	100%	2.53 kg / 5.58 lbs 2530.0 g / 24.8 N

A too thin steel is not enough to take in the entire magnetic field, which weakens actual performance of the holder. If you attach a powerful product to a weak sheet, the field will pass right through and the pull force will drop sharply. To squeeze 100% of this neodymium's power, you need a suitably thick piece of metal. The saturation phenomenon causes that on delicate walls (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) - thermal limit
MP 14x8/4x3 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	2.53 kg / 5.58 lbs 2530.0 g / 24.8 N	OK
40 °C	-2.2%	2.47 kg / 5.45 lbs 2474.3 g / 24.3 N	OK
60 °C	-4.4%	2.42 kg / 5.33 lbs 2418.7 g / 23.7 N
80 °C	-6.6%	2.36 kg / 5.21 lbs 2363.0 g / 23.2 N
100 °C	-28.8%	1.80 kg / 3.97 lbs 1801.4 g / 17.7 N

Classic neodymiums change their properties strength above the temperature limit. Protect against heat – excessive heat can permanently destroy this magnet. As the temperature rises, the neodymium's power momentarily drops. Do not use this magnet close to heaters exceeding its operating temperature limit. Too high temperature will cause destruction of magnetic properties.

*Important note: Heat tolerance is determined by both grade, but also on the magnet's shape. Low-profile magnets (pancake types) may lose charge permanently at lower temperatures compared to rod magnets. Warning indicator in the table signals permanent field degradation for this specific geometry.

Table 6: Magnet-Magnet interaction (attraction) - field collision
MP 14x8/4x3 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Lateral Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	3.33 kg / 7.34 lbs 3 647 Gs	0.50 kg / 1.10 lbs 500 g / 4.9 N	N/A
1 mm	3.07 kg / 6.76 lbs 4 070 Gs	0.46 kg / 1.01 lbs 460 g / 4.5 N	2.76 kg / 6.09 lbs ~0 Gs
2 mm	2.75 kg / 6.07 lbs 3 855 Gs	0.41 kg / 0.91 lbs 413 g / 4.0 N	2.48 kg / 5.46 lbs ~0 Gs
3 mm	2.42 kg / 5.33 lbs 3 612 Gs	0.36 kg / 0.80 lbs 362 g / 3.6 N	2.17 kg / 4.79 lbs ~0 Gs
5 mm	1.76 kg / 3.88 lbs 3 084 Gs	0.26 kg / 0.58 lbs 264 g / 2.6 N	1.59 kg / 3.50 lbs ~0 Gs
10 mm	0.66 kg / 1.45 lbs 1 886 Gs	0.10 kg / 0.22 lbs 99 g / 1.0 N	0.59 kg / 1.31 lbs ~0 Gs
20 mm	0.08 kg / 0.18 lbs 671 Gs	0.01 kg / 0.03 lbs 13 g / 0.1 N	0.08 kg / 0.17 lbs ~0 Gs
50 mm	0.00 kg / 0.00 lbs 77 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 47 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 31 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 21 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 15 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 11 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 significantly greater distance than a neodymium and metal combination. The setup of two magnets creates a more powerful interaction and a further horizon of performance. Designing a strong closure? Utilize two neodymiums instead of one magnet and a steel. Be careful that when connecting a pair of magnets, the collision energy is extreme. The repulsion force is marginally weaker than the connection force, but still large.
*The magnetic induction in repulsion mode drops to ~0 Gs at the midpoint of the gap (due to field cancellation).
Important: Figures demonstrate shear force of two matching neodymium magnets (friction ~0.15 for Ni-Ni coating).

Table 7: Safety (HSE) (electronics) - precautionary measures
MP 14x8/4x3 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	5.5 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)	2.5 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 serious hazard to electronic devices as well as medical implants. These magnets generate a field that destroys function of digital equipment. Notice: the unseen radiation passes through tissues and housings. Exceptional care must be exercised by people with hearing aids and drug dispensers. Influence will be felt by: mechanical watches, remotes, speakers, and screens. Do not bring the product near payment cards, hard drives, or sensitive navigation tools.

Table 8: Dynamics (cracking risk) - collision effects
MP 14x8/4x3 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	28.89 km/h (8.02 m/s)	0.10 J
30 mm	49.27 km/h (13.69 m/s)	0.30 J
50 mm	63.61 km/h (17.67 m/s)	0.50 J
100 mm	89.96 km/h (24.99 m/s)	0.99 J

Neodymium magnets are delicate – a violent impact against metal risks their cracking. Control the attraction moment – a neodymium left loose speeds with massive force. Impact energy can trigger coating fragments or painful pinches to skin. Always hold the magnet during bringing near metal so it doesn't hit violently against the steel surface. A contact at a velocity of dozens of km/h means shattering of the neodymium. Wear safety glasses when working with large magnets.

Table 9: Anti-corrosion coating durability
MP 14x8/4x3 / 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)

The SST (salt spray test) is an industry standard for determining coating lifespan in harsh conditions. Moisture resistance is crucial for installations in bathrooms or outdoors.

Table 10: Construction data (Flux)
MP 14x8/4x3 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	3 101 Mx	31.0 µWb
P_c Coefficient	0.28	Low (Flat)

Total magnetic flux emitted by the magnet pole. Essential parameter for generator designers and motors. The P_c coefficient determines the working geometry.

Table 11: Underwater work (magnet fishing)
MP 14x8/4x3 / N38

Environment	Effective steel pull	Effect
Air (land)	2.53 kg	Standard
Water (riverbed)	2.90 kg (+0.37 kg buoyancy gain)	+14.5%

Corrosion 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. Buoyancy helps in lifting finds.

1. Vertical hold

*Warning: On a vertical wall, the magnet retains merely ~20% of its perpendicular strength.

2. Steel thickness impact

*Thin steel (e.g. 0.5mm PC case) drastically reduces the holding force.

3. Thermal stability

*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) = 0.28

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 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%

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: 030181-2026

Measurement Calculator

Force (pull)

Kilograms (kg)

Force in lbs

Field Strength

Tesla (T)

Just populate a single box, to let the tool fill in the rest automatically.

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It is ideally suited for places where solid attachment of the magnet to the substrate is required without the risk of detachment. Thanks to the hole (often for a screw), this model enables quick installation to wood, wall, plastic, or metal. This product with a force of 2.53 kg works great as a cabinet closure, speaker holder, or spacer element in devices.

This is a crucial issue when working with model MP 14x8/4x3 / N38. Neodymium magnets are sintered ceramics, which means they are hard but breakable and inelastic. 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. Damage to the protective layer during assembly is the most common cause of rusting. 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. 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.

This model is characterized by dimensions Ø14x3 mm and a weight of 3.18 g. The pulling force of this model is an impressive 2.53 kg, which translates to 24.85 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.

Strengths as well as weaknesses of Nd₂Fe₁₄B magnets.

Strengths

Besides their magnetic performance, neodymium magnets are valued for these benefits:

They have stable power, and over more than ten years their attraction force decreases symbolically – ~1% (according to theory),
They are extremely resistant to demagnetization induced by external field influence,
In other words, due to the reflective finish of nickel, the element gains a professional look,
Magnets are distinguished by maximum magnetic induction on the outer layer,
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 versatility in constructing and the ability to modify to individual projects,
Wide application in modern industrial fields – they are utilized in data components, electric motors, precision medical tools, and multitasking production systems.
Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in compact dimensions, which makes them useful in compact constructions

Cons

Drawbacks and weaknesses of neodymium magnets: weaknesses and usage proposals

Susceptibility to cracking is one of their disadvantages. Upon strong impact they can break. We advise keeping them in a steel housing, which not only protects them against impacts but also raises their durability
When exposed to high temperature, neodymium magnets suffer 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
When exposed to humidity, magnets start to rust. For applications outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which secure oxidation as well as corrosion.
Due to limitations in creating threads and complicated forms in magnets, we recommend using casing - magnetic mount.
Health risk resulting from small fragments of magnets pose a threat, in case of ingestion, which gains importance in the context of child health protection. Furthermore, small components of these magnets are able to complicate diagnosis medical when they are in the body.
Due to expensive raw materials, their price exceeds standard values,

Pull force analysis

Breakaway strength of the magnet in ideal conditions – what affects it?

Magnet power was determined for optimal configuration, taking into account:

using a base made of high-permeability steel, acting as a circuit closing element
whose thickness is min. 10 mm
with a plane perfectly flat
without any clearance between the magnet and steel
for force applied at a right angle (in the magnet axis)
at room temperature

Determinants of practical lifting force of a magnet

In practice, the real power depends on many variables, ranked from most significant:

Distance (betwixt the magnet and the metal), as even a microscopic distance (e.g. 0.5 mm) can cause a decrease in force by up to 50% (this also applies to paint, rust or dirt).
Pull-off angle – note that the magnet holds strongest perpendicularly. Under sliding down, the capacity drops significantly, often to levels of 20-30% of the nominal value.
Plate thickness – too thin sheet does not accept the full field, causing part of the power to be escaped to the other side.
Material composition – not every steel reacts the same. Alloy additives worsen the attraction effect.
Plate texture – smooth surfaces guarantee perfect abutment, which increases force. Rough surfaces weaken the grip.
Thermal factor – hot environment weakens pulling force. Too high temperature can permanently damage the magnet.

Holding force was checked on a smooth steel plate of 20 mm thickness, when the force acted perpendicularly, whereas under shearing force the holding force is lower. Moreover, even a slight gap between the magnet’s surface and the plate reduces the load capacity.

H&S for magnets

Threat to electronics

Device Safety: Neodymium magnets can damage data carriers and delicate electronics (heart implants, hearing aids, mechanical watches).

Flammability

Powder created during cutting of magnets is combustible. Avoid drilling into magnets unless you are an expert.

Keep away from children

Neodymium magnets are not toys. Swallowing a few magnets may result in them attracting across intestines, which constitutes a severe health hazard and requires urgent medical intervention.

Eye protection

Watch out for shards. Magnets can fracture upon violent connection, ejecting sharp fragments into the air. We recommend safety glasses.

Powerful field

Before use, check safety instructions. Uncontrolled attraction can break the magnet or hurt your hand. Think ahead.

Crushing risk

Pinching hazard: The pulling power is so great that it can result in hematomas, pinching, and broken bones. Use thick gloves.

Precision electronics

GPS units and smartphones are extremely sensitive to magnetic fields. Close proximity with a strong magnet can ruin the sensors in your phone.

Danger to pacemakers

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

Avoid contact if allergic

Warning for allergy sufferers: The nickel-copper-nickel coating contains nickel. If an allergic reaction happens, immediately stop working with magnets and use protective gear.

Heat sensitivity

Standard neodymium magnets (N-type) lose power when the temperature surpasses 80°C. This process is irreversible.

Attention! Looking for details? Check our post: Are neodymium magnets dangerous?

MP 14x8/4x3 / N38 - ring magnet

Physical properties - MP 14x8/4x3 / N38 - ring magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical analysis of the product - report

Table 1: Static force (pull vs gap) - characteristics MP 14x8/4x3 / N38

Table 2: Sliding force (vertical surface) MP 14x8/4x3 / N38

Table 3: Vertical assembly (sliding) - vertical pull MP 14x8/4x3 / N38

Table 4: Material efficiency (saturation) - sheet metal selection MP 14x8/4x3 / N38

Table 5: Thermal resistance (material behavior) - thermal limit MP 14x8/4x3 / N38

Table 6: Magnet-Magnet interaction (attraction) - field collision MP 14x8/4x3 / N38

Table 7: Safety (HSE) (electronics) - precautionary measures MP 14x8/4x3 / N38

Table 8: Dynamics (cracking risk) - collision effects MP 14x8/4x3 / N38

Table 9: Anti-corrosion coating durability MP 14x8/4x3 / N38

Table 10: Construction data (Flux) MP 14x8/4x3 / N38

Table 11: Underwater work (magnet fishing) MP 14x8/4x3 / N38

1. Vertical hold

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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Strengths as well as weaknesses of Nd2Fe14B magnets.

Strengths

Cons

Pull force analysis

Breakaway strength of the magnet in ideal conditions – what affects it?

Determinants of practical lifting force of a magnet

H&S for magnets

Threat to electronics

Flammability

Keep away from children

Eye protection

Powerful field

Crushing risk

Precision electronics

Danger to pacemakers

Avoid contact if allergic

Heat sensitivity

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (pull vs gap) - characteristics
MP 14x8/4x3 / N38

Table 2: Sliding force (vertical surface)
MP 14x8/4x3 / N38

Table 3: Vertical assembly (sliding) - vertical pull
MP 14x8/4x3 / N38

Table 4: Material efficiency (saturation) - sheet metal selection
MP 14x8/4x3 / N38

Table 5: Thermal resistance (material behavior) - thermal limit
MP 14x8/4x3 / N38

Table 6: Magnet-Magnet interaction (attraction) - field collision
MP 14x8/4x3 / N38

Table 7: Safety (HSE) (electronics) - precautionary measures
MP 14x8/4x3 / N38

Table 8: Dynamics (cracking risk) - collision effects
MP 14x8/4x3 / N38

Table 9: Anti-corrosion coating durability
MP 14x8/4x3 / N38

Table 10: Construction data (Flux)
MP 14x8/4x3 / N38

Table 11: Underwater work (magnet fishing)
MP 14x8/4x3 / N38

Strengths as well as weaknesses of Nd₂Fe₁₄B magnets.