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MP 30x6x10 / 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 030197

GTIN/EAN: 5906301812142

5.00

Diameter

30 mm [±0,1 mm]

internal diameter Ø

6 mm [±0,1 mm]

Height

10 mm [±0,1 mm]

Weight

50.89 g

Magnetization Direction

↑ axial

Load capacity

20.71 kg / 203.16 N

Magnetic Induction

343.81 mT / 3438 Gs

Coating

[NiCuNi] Nickel

technical specifications »

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Detailed specification - MP 30x6x10 / N38 - ring magnet

Specification / characteristics - MP 30x6x10 / N38 - ring magnet

properties

properties	values
Cat. no.	030197
GTIN/EAN	5906301812142
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	30 mm [±0,1 mm]
internal diameter Ø	6 mm [±0,1 mm]
Height	10 mm [±0,1 mm]
Weight	50.89 g
Magnetization Direction	↑ axial
Load capacity ~ ?	20.71 kg / 203.16 N
Magnetic Induction ~ ?	343.81 mT / 3438 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MP 30x6x10 / N38 - ring magnet

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

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

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

Physical modeling of the assembly - data

These values are the outcome of a engineering simulation. Values are based on models for the class Nd₂Fe₁₄B. Operational conditions may differ from theoretical values. Please consider these calculations as a supplementary guide for designers.

Table 1: Static force (force vs gap) - characteristics
MP 30x6x10 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	5619 Gs 561.9 mT	20.71 kg / 45.66 lbs 20710.0 g / 203.2 N	crushing
1 mm	5241 Gs 524.1 mT	18.01 kg / 39.71 lbs 18011.7 g / 176.7 N	crushing
2 mm	4861 Gs 486.1 mT	15.50 kg / 34.17 lbs 15498.1 g / 152.0 N	crushing
3 mm	4490 Gs 449.0 mT	13.22 kg / 29.15 lbs 13223.5 g / 129.7 N	crushing
5 mm	3792 Gs 379.2 mT	9.43 kg / 20.79 lbs 9429.0 g / 92.5 N	medium risk
10 mm	2404 Gs 240.4 mT	3.79 kg / 8.36 lbs 3791.3 g / 37.2 N	medium risk
15 mm	1526 Gs 152.6 mT	1.53 kg / 3.37 lbs 1527.0 g / 15.0 N	low risk
20 mm	1000 Gs 100.0 mT	0.66 kg / 1.45 lbs 655.5 g / 6.4 N	low risk
30 mm	482 Gs 48.2 mT	0.15 kg / 0.34 lbs 152.6 g / 1.5 N	low risk
50 mm	161 Gs 16.1 mT	0.02 kg / 0.04 lbs 17.0 g / 0.2 N	low risk

Magnetic force drops drastically with every mm of spacing. Note that every additional insulation layer (e.g., dirt, varnish, veneer) noticeably weakens the grip. Neodymiums work most effectively in perfect adhesion; gap drastically cuts the power. Notice how quickly the pull force plummet, when the magnet does not adhere flatly to the metal substrate. When calculating the mounting, eliminate redundant distances.

Table 2: Sliding capacity (wall)
MP 30x6x10 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	4.14 kg / 9.13 lbs 4142.0 g / 40.6 N
1 mm	Stal (~0.2)	3.60 kg / 7.94 lbs 3602.0 g / 35.3 N
2 mm	Stal (~0.2)	3.10 kg / 6.83 lbs 3100.0 g / 30.4 N
3 mm	Stal (~0.2)	2.64 kg / 5.83 lbs 2644.0 g / 25.9 N
5 mm	Stal (~0.2)	1.89 kg / 4.16 lbs 1886.0 g / 18.5 N
10 mm	Stal (~0.2)	0.76 kg / 1.67 lbs 758.0 g / 7.4 N
15 mm	Stal (~0.2)	0.31 kg / 0.67 lbs 306.0 g / 3.0 N
20 mm	Stal (~0.2)	0.13 kg / 0.29 lbs 132.0 g / 1.3 N
30 mm	Stal (~0.2)	0.03 kg / 0.07 lbs 30.0 g / 0.3 N
50 mm	Stal (~0.2)	0.00 kg / 0.01 lbs 4.0 g / 0.0 N

This section calculates the theoretical weight limit sufficient to start the downward movement of the magnet down against a upright steel wall (considering typical friction coefficient). This value is relative to the distance between the magnet and the metal.

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces
MP 30x6x10 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	6.21 kg / 13.70 lbs 6213.0 g / 60.9 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	4.14 kg / 9.13 lbs 4142.0 g / 40.6 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	2.07 kg / 4.57 lbs 2071.0 g / 20.3 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	10.36 kg / 22.83 lbs 10355.0 g / 101.6 N

When placing a element on a upright wall (e.g., a board), it will only hold just approx. 20%-30% of its maximum pull force. Gravitational force as well as a low friction coefficient mean that magnets slide down faster than they detach. Designing a vertical fastening? Consider that the sliding force is much weaker than the perpendicular breakaway force. On a smooth steel, the holder will slip down under a significantly smaller weight. Using a rubber layer can drastically raise the stability.

Table 4: Material efficiency (saturation) - power losses
MP 30x6x10 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	5%	1.04 kg / 2.28 lbs 1035.5 g / 10.2 N
1 mm	13%	2.59 kg / 5.71 lbs 2588.8 g / 25.4 N
2 mm	25%	5.18 kg / 11.41 lbs 5177.5 g / 50.8 N
3 mm	38%	7.77 kg / 17.12 lbs 7766.3 g / 76.2 N
5 mm	63%	12.94 kg / 28.54 lbs 12943.8 g / 127.0 N
10 mm	100%	20.71 kg / 45.66 lbs 20710.0 g / 203.2 N
11 mm	100%	20.71 kg / 45.66 lbs 20710.0 g / 203.2 N
12 mm	100%	20.71 kg / 45.66 lbs 20710.0 g / 203.2 N

A thin metal plate is not enough to absorb the entire magnetic field, which squanders power of the magnet. Should you mount a strong magnet to a weak sheet, the magnetism will pass right through and the pull force will drop sharply. To squeeze 100% of this neodymium's potential, you need a suitably thick backing of metal. The saturation effect causes that on sheet metal structures (e.g., car bodies), the magnet shows lower pull force. We suggest choosing the steel thickness from these parameters.

Table 5: Thermal stability (stability) - thermal limit
MP 30x6x10 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	20.71 kg / 45.66 lbs 20710.0 g / 203.2 N	OK
40 °C	-2.2%	20.25 kg / 44.65 lbs 20254.4 g / 198.7 N	OK
60 °C	-4.4%	19.80 kg / 43.65 lbs 19798.8 g / 194.2 N	OK
80 °C	-6.6%	19.34 kg / 42.64 lbs 19343.1 g / 189.8 N
100 °C	-28.8%	14.75 kg / 32.51 lbs 14745.5 g / 144.7 N

Ordinary NdFeB products irreversibly lose strength past the thermal threshold. Avoid high temperatures – excessive heat can permanently damage this magnet. With increasing heat, the magnet's capacity briefly drops. Do not use this product in hot environments exceeding its operating temperature limit. Ignoring the limit will result in destruction of magnetism.

*Important note: Thermal stability is determined by both grade, as well as the dimension ratios. Thin magnets (low permeance coefficient) may lose charge permanently under lower heat stress than long magnets. The danger warning in the table indicates a risk of irreversible loss for this specific geometry.

Table 6: Magnet-Magnet interaction (attraction) - forces in the system
MP 30x6x10 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Sliding Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	103.97 kg / 229.22 lbs 6 035 Gs	15.60 kg / 34.38 lbs 15596 g / 153.0 N	N/A
1 mm	97.15 kg / 214.17 lbs 10 864 Gs	14.57 kg / 32.13 lbs 14572 g / 143.0 N	87.43 kg / 192.75 lbs ~0 Gs
2 mm	90.42 kg / 199.35 lbs 10 481 Gs	13.56 kg / 29.90 lbs 13564 g / 133.1 N	81.38 kg / 179.42 lbs ~0 Gs
3 mm	83.97 kg / 185.13 lbs 10 100 Gs	12.60 kg / 27.77 lbs 12596 g / 123.6 N	75.57 kg / 166.61 lbs ~0 Gs
5 mm	71.94 kg / 158.60 lbs 9 349 Gs	10.79 kg / 23.79 lbs 10791 g / 105.9 N	64.75 kg / 142.74 lbs ~0 Gs
10 mm	47.34 kg / 104.36 lbs 7 583 Gs	7.10 kg / 15.65 lbs 7100 g / 69.7 N	42.60 kg / 93.92 lbs ~0 Gs
20 mm	19.03 kg / 41.96 lbs 4 809 Gs	2.86 kg / 6.29 lbs 2855 g / 28.0 N	17.13 kg / 37.77 lbs ~0 Gs
50 mm	1.53 kg / 3.37 lbs 1 363 Gs	0.23 kg / 0.51 lbs 229 g / 2.2 N	1.38 kg / 3.03 lbs ~0 Gs
60 mm	0.77 kg / 1.69 lbs 965 Gs	0.11 kg / 0.25 lbs 115 g / 1.1 N	0.69 kg / 1.52 lbs ~0 Gs
70 mm	0.41 kg / 0.90 lbs 706 Gs	0.06 kg / 0.14 lbs 61 g / 0.6 N	0.37 kg / 0.81 lbs ~0 Gs
80 mm	0.23 kg / 0.51 lbs 531 Gs	0.03 kg / 0.08 lbs 35 g / 0.3 N	0.21 kg / 0.46 lbs ~0 Gs
90 mm	0.14 kg / 0.30 lbs 409 Gs	0.02 kg / 0.05 lbs 21 g / 0.2 N	0.12 kg / 0.27 lbs ~0 Gs
100 mm	0.09 kg / 0.19 lbs 322 Gs	0.01 kg / 0.03 lbs 13 g / 0.1 N	0.08 kg / 0.17 lbs ~0 Gs

Two magnetic products interact from a much further distance than a neodymium and metal combination. The setup of two magnets generates a stronger field and a larger range of action. Designing a solid fastener? Use a pair of magnets instead of one magnet and a striker plate. Remember that when connecting a pair of magnets, the impact force is massive. The levitation is marginally weaker than the attraction, but still impressive.
*Field value in repulsion mode drops to ~0 Gs at the midpoint of the gap (due to field cancellation).
* Estimates apply to shear force of a pair of identical neodymium magnets (friction coefficient ~0.15 for Ni-Ni layer).

Table 7: Hazards (electronics) - warnings
MP 30x6x10 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	19.5 cm
Hearing aid	10 Gs (1.0 mT)	15.0 cm
Timepiece	20 Gs (2.0 mT)	12.0 cm
Phone / Smartphone	40 Gs (4.0 mT)	9.0 cm
Remote	50 Gs (5.0 mT)	8.5 cm
Payment card	400 Gs (40.0 mT)	3.5 cm
HDD hard drive	600 Gs (60.0 mT)	3.0 cm

Powerful magnet radiation poses a serious hazard to electronics as well as pacemakers. These neodymiums produce a flux that prevents correct functioning of digital equipment. Remember: the invisible magnetic field penetrates the body and plastic. Increased vigilance must be taken by people with hearing aids and drug dispensers. The risk also applies to: mechanical watches, remotes, membranes, and displays. Do not place the magnet near cards, hard drives, or sensitive navigation tools.

Table 8: Dynamics (kinetic energy) - warning
MP 30x6x10 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	22.55 km/h (6.26 m/s)	1.00 J
30 mm	35.40 km/h (9.83 m/s)	2.46 J
50 mm	45.52 km/h (12.64 m/s)	4.07 J
100 mm	64.34 km/h (17.87 m/s)	8.13 J

Magnetic elements are delicate – a strong collision with metal causes immediate chipping. Pay attention to connection velocity – a neodymium left loose turns into a projectile. Kinetic force can cause material chips or injury to skin. Always hold the magnet during bringing near metal so it doesn't hit with great force against the steel surface. A contact at a velocity of dozens of km/h almost guarantees destruction of the neodymium. Wear safety glasses when handling with large magnets.

Table 9: Corrosion resistance
MP 30x6x10 / N38

Technical parameter	Value / Description
Coating type	[NiCuNi] Nickel
Layer structure	Nickel - Copper - Nickel
Layer thickness	10-20 µm
Salt spray test (SST) ?	24 h
Recommended environment	Indoors only (dry)

Neodymium magnets are highly susceptible to corrosion without proper protection. Moisture resistance is crucial for installations in bathrooms or outdoors.

Table 10: Electrical data (P_c)
MP 30x6x10 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	31 585 Mx	315.8 µWb
P_c Coefficient	0.96	High (Stable)

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

Table 11: Physics of underwater searching
MP 30x6x10 / N38

Environment	Effective steel pull	Effect
Air (land)	20.71 kg	Standard
Water (riverbed)	23.71 kg (+3.00 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.

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

1. Vertical hold

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

2. Steel saturation

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

3. Thermal stability

*For standard magnets, 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) = 0.96

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%

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: 030197-2026

Measurement Calculator

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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. Mounting is clean and reversible, unlike gluing. This product with a force of 20.71 kg works great as a door latch, speaker holder, or spacer element in devices.

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.

These magnets are coated with standard Ni-Cu-Ni plating, which protects them in indoor conditions, but does not ensure full waterproofing. 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. 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. Always check that the screw head is not larger than the outer diameter of the magnet (30 mm), so it doesn't protrude beyond the outline.

It is a magnetic ring with a diameter of 30 mm and thickness 10 mm. The pulling force of this model is an impressive 20.71 kg, which translates to 203.16 N in newtons. The product has a [NiCuNi] coating and is made of NdFeB material. Inner hole dimension: 6 mm.

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

Strengths and weaknesses of Nd₂Fe₁₄B magnets.

Pros

Besides their remarkable field intensity, neodymium magnets offer the following advantages:

They retain attractive force for nearly ten years – the drop is just ~1% (according to analyses),
Magnets very well protect themselves against demagnetization caused by ambient magnetic noise,
A magnet with a shiny nickel surface is more attractive,
The surface of neodymium magnets generates a intense magnetic field – this is a distinguishing feature,
Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their form) at temperatures up to 230°C and above...
Thanks to the possibility of free forming and adaptation to specialized projects, neodymium magnets can be modeled in a wide range of geometric configurations, which makes them more universal,
Wide application in modern industrial fields – they find application in computer drives, brushless drives, medical devices, also complex engineering applications.
Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications

Cons

Drawbacks and weaknesses of neodymium magnets: application proposals

Brittleness is one of their disadvantages. Upon intense impact they can break. We recommend keeping them in a strong case, which not only secures them against impacts but also raises their durability
We warn that neodymium magnets can reduce their strength at high temperatures. To prevent this, we recommend our specialized [AH] magnets, which work effectively even at 230°C.
Magnets exposed to a humid environment can rust. Therefore during using outdoors, we suggest using waterproof magnets made of rubber, plastic or other material resistant to moisture
Due to limitations in realizing nuts and complex forms in magnets, we recommend using casing - magnetic holder.
Potential hazard related to microscopic parts of magnets can be dangerous, in case of ingestion, which gains importance in the context of child health protection. Furthermore, tiny parts of these products are able to complicate diagnosis medical in case of swallowing.
High unit price – neodymium magnets are more expensive than other types of magnets (e.g. ferrite), which hinders application in large quantities

Lifting parameters

Maximum holding power of the magnet – what contributes to it?

Information about lifting capacity was defined for the most favorable conditions, including:

with the use of a yoke made of low-carbon steel, ensuring maximum field concentration
with a cross-section of at least 10 mm
with a plane cleaned and smooth
without any clearance between the magnet and steel
for force applied at a right angle (in the magnet axis)
at ambient temperature approx. 20 degrees Celsius

Determinants of practical lifting force of a magnet

Real force is influenced by working environment parameters, including (from priority):

Clearance – existence of any layer (rust, dirt, gap) acts as an insulator, which lowers capacity steeply (even by 50% at 0.5 mm).
Force direction – declared lifting capacity refers to detachment vertically. When applying parallel force, the magnet holds significantly lower power (typically approx. 20-30% of maximum force).
Wall thickness – the thinner the sheet, the weaker the hold. Part of the magnetic field passes through the material instead of converting into lifting capacity.
Material type – the best choice is pure iron steel. Cast iron may have worse magnetic properties.
Plate texture – smooth surfaces guarantee perfect abutment, which improves force. Rough surfaces weaken the grip.
Thermal factor – hot environment weakens magnetic field. Too high temperature can permanently damage the magnet.

Lifting capacity testing was conducted on plates with a smooth surface of suitable thickness, under perpendicular forces, whereas under attempts to slide the magnet the lifting capacity is smaller. Additionally, even a slight gap between the magnet’s surface and the plate lowers the load capacity.

Safe handling of neodymium magnets

Hand protection

Big blocks can crush fingers in a fraction of a second. Under no circumstances place your hand betwixt two strong magnets.

Threat to navigation

Navigation devices and smartphones are extremely sensitive to magnetic fields. Direct contact with a powerful NdFeB magnet can ruin the internal compass in your phone.

Nickel coating and allergies

Some people suffer from a hypersensitivity to nickel, which is the typical protective layer for NdFeB magnets. Extended handling might lead to a rash. It is best to use safety gloves.

Magnets are brittle

NdFeB magnets are ceramic materials, meaning they are very brittle. Impact of two magnets leads to them breaking into shards.

Product not for children

Product intended for adults. Tiny parts can be swallowed, causing intestinal necrosis. Store out of reach of kids and pets.

Handling rules

Handle magnets consciously. Their huge power can surprise even experienced users. Be vigilant and respect their force.

Dust explosion hazard

Fire hazard: Neodymium dust is explosive. Do not process magnets without safety gear as this may cause fire.

Do not overheat magnets

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

Electronic hazard

Intense magnetic fields can corrupt files on credit cards, hard drives, and storage devices. Maintain a gap of min. 10 cm.

Health Danger

Warning for patients: Strong magnetic fields affect electronics. Keep minimum 30 cm distance or request help to work with the magnets.

Attention! More info about risks in the article: Magnet Safety Guide.

MP 30x6x10 / N38 - ring magnet

Detailed specification - MP 30x6x10 / N38 - ring magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical modeling of the assembly - data

Table 1: Static force (force vs gap) - characteristics MP 30x6x10 / N38

Table 2: Sliding capacity (wall) MP 30x6x10 / N38

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces MP 30x6x10 / N38

Table 4: Material efficiency (saturation) - power losses MP 30x6x10 / N38

Table 5: Thermal stability (stability) - thermal limit MP 30x6x10 / N38

Table 6: Magnet-Magnet interaction (attraction) - forces in the system MP 30x6x10 / N38

Table 7: Hazards (electronics) - warnings MP 30x6x10 / N38

Table 8: Dynamics (kinetic energy) - warning MP 30x6x10 / N38

Table 9: Corrosion resistance MP 30x6x10 / N38

Table 10: Electrical data (Pc) MP 30x6x10 / N38

Table 11: Physics of underwater searching MP 30x6x10 / N38

1. Vertical hold

2. Steel saturation

3. Thermal stability

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

Elemental analysis

Sustainability

Magnet pull force

Magnetic Induction

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Strengths and weaknesses of Nd2Fe14B magnets.

Pros

Cons

Lifting parameters

Maximum holding power of the magnet – what contributes to it?

Determinants of practical lifting force of a magnet

Safe handling of neodymium magnets

Hand protection

Threat to navigation

Nickel coating and allergies

Magnets are brittle

Product not for children

Handling rules

Dust explosion hazard

Do not overheat magnets

Electronic hazard

Health Danger

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (force vs gap) - characteristics
MP 30x6x10 / N38

Table 2: Sliding capacity (wall)
MP 30x6x10 / N38

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces
MP 30x6x10 / N38

Table 4: Material efficiency (saturation) - power losses
MP 30x6x10 / N38

Table 5: Thermal stability (stability) - thermal limit
MP 30x6x10 / N38

Table 6: Magnet-Magnet interaction (attraction) - forces in the system
MP 30x6x10 / N38

Table 7: Hazards (electronics) - warnings
MP 30x6x10 / N38

Table 8: Dynamics (kinetic energy) - warning
MP 30x6x10 / N38

Table 9: Corrosion resistance
MP 30x6x10 / N38

Table 10: Electrical data (P_c)
MP 30x6x10 / N38

Table 11: Physics of underwater searching
MP 30x6x10 / N38

Strengths and weaknesses of Nd₂Fe₁₄B magnets.