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MW 10x30 / N38 - cylindrical 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

cylindrical magnet

Catalog no 010009

GTIN/EAN: 5906301810087

5.00

Diameter Ø

10 mm [±0,1 mm]

Height

30 mm [±0,1 mm]

Weight

17.67 g

Magnetization Direction

↑ axial

Load capacity

1.92 kg / 18.79 N

Magnetic Induction

610.80 mT / 6108 Gs

Coating

[NiCuNi] Nickel

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Technical specification of the product - MW 10x30 / N38 - cylindrical magnet

Specification / characteristics - MW 10x30 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010009
GTIN/EAN	5906301810087
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 Ø	10 mm [±0,1 mm]
Height	30 mm [±0,1 mm]
Weight	17.67 g
Magnetization Direction	↑ axial
Load capacity ~ ?	1.92 kg / 18.79 N
Magnetic Induction ~ ?	610.80 mT / 6108 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 10x30 / N38 - cylindrical 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

Engineering modeling of the magnet - data

The following data are the result of a physical calculation. Values rely on algorithms for the material Nd₂Fe₁₄B. Real-world performance might slightly differ from theoretical values. Treat these data as a reference point when designing systems.

Table 1: Static force (force vs distance) - power drop
MW 10x30 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	6103 Gs 610.3 mT	1.92 kg / 4.23 lbs 1920.0 g / 18.8 N	weak grip
1 mm	4905 Gs 490.5 mT	1.24 kg / 2.73 lbs 1240.1 g / 12.2 N	weak grip
2 mm	3823 Gs 382.3 mT	0.75 kg / 1.66 lbs 753.3 g / 7.4 N	weak grip
3 mm	2940 Gs 294.0 mT	0.45 kg / 0.98 lbs 445.6 g / 4.4 N	weak grip
5 mm	1754 Gs 175.4 mT	0.16 kg / 0.35 lbs 158.5 g / 1.6 N	weak grip
10 mm	607 Gs 60.7 mT	0.02 kg / 0.04 lbs 19.0 g / 0.2 N	weak grip
15 mm	280 Gs 28.0 mT	0.00 kg / 0.01 lbs 4.0 g / 0.0 N	weak grip
20 mm	154 Gs 15.4 mT	0.00 kg / 0.00 lbs 1.2 g / 0.0 N	weak grip
30 mm	63 Gs 6.3 mT	0.00 kg / 0.00 lbs 0.2 g / 0.0 N	weak grip
50 mm	19 Gs 1.9 mT	0.00 kg / 0.00 lbs 0.0 g / 0.0 N	weak grip

Pulling power weakens significantly with every subsequent millimeter of spacing. Keep in mind that even a very thin break (e.g., dirt, paint, rust) strongly weakens the grip. Magnets work most effectively in perfect adhesion; gap drastically cuts the power. See how flashily the pull force fall, when the product does not touch flatly to the metal substrate. When calculating the mounting, discard redundant distances.

Table 2: Slippage force (wall)
MW 10x30 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	0.38 kg / 0.85 lbs 384.0 g / 3.8 N
1 mm	Stal (~0.2)	0.25 kg / 0.55 lbs 248.0 g / 2.4 N
2 mm	Stal (~0.2)	0.15 kg / 0.33 lbs 150.0 g / 1.5 N
3 mm	Stal (~0.2)	0.09 kg / 0.20 lbs 90.0 g / 0.9 N
5 mm	Stal (~0.2)	0.03 kg / 0.07 lbs 32.0 g / 0.3 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 approximate force necessary to initiate the slippage of the magnet vertically along a vertical metal surface (assuming standard friction). This parameter varies with the air gap between the magnet and the metal.

Table 3: Vertical assembly (sliding) - vertical pull
MW 10x30 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	0.58 kg / 1.27 lbs 576.0 g / 5.7 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.38 kg / 0.85 lbs 384.0 g / 3.8 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.19 kg / 0.42 lbs 192.0 g / 1.9 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	0.96 kg / 2.12 lbs 960.0 g / 9.4 N

When placing a magnet on a vertical surface (e.g., a car body), it you can count on barely about 1/5 of nominal attraction strength. Gravitational force and a weak degree of grip influence the fact that products slide down faster than they pull off. Want to create a wall mount? Note that the sliding force is much weaker than the perpendicular breakaway force. On a smooth steel, the element will give way down under a significantly smaller load. Application of an anti-slip layer can significantly improve the result.

Table 4: Material efficiency (saturation) - power losses
MW 10x30 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.19 kg / 0.42 lbs 192.0 g / 1.9 N
1 mm	25%	0.48 kg / 1.06 lbs 480.0 g / 4.7 N
2 mm	50%	0.96 kg / 2.12 lbs 960.0 g / 9.4 N
3 mm	75%	1.44 kg / 3.17 lbs 1440.0 g / 14.1 N
5 mm	100%	1.92 kg / 4.23 lbs 1920.0 g / 18.8 N
10 mm	100%	1.92 kg / 4.23 lbs 1920.0 g / 18.8 N
11 mm	100%	1.92 kg / 4.23 lbs 1920.0 g / 18.8 N
12 mm	100%	1.92 kg / 4.23 lbs 1920.0 g / 18.8 N

A too thin steel is unable to focus the entire magnetic field, which wastes potential of the magnet. If you attach a powerful product to a too thin substrate, the field will pass right through and the holding will be smaller. To utilize the maximum of this magnet's potential, you require a sufficiently solid element of steel. The saturation effect means that on sheet metal structures (e.g., appliance housings), the product works worse. We suggest choosing the steel thickness based on the following data.

Table 5: Thermal resistance (material behavior) - power drop
MW 10x30 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	1.92 kg / 4.23 lbs 1920.0 g / 18.8 N	OK
40 °C	-2.2%	1.88 kg / 4.14 lbs 1877.8 g / 18.4 N	OK
60 °C	-4.4%	1.84 kg / 4.05 lbs 1835.5 g / 18.0 N	OK
80 °C	-6.6%	1.79 kg / 3.95 lbs 1793.3 g / 17.6 N
100 °C	-28.8%	1.37 kg / 3.01 lbs 1367.0 g / 13.4 N

Ordinary NdFeB products lose parameters above the temperature limit. Protect against heat – excessive heat can permanently damage this product. With increasing heat, the neodymium's capacity briefly decreases. Do not use this product close to heaters exceeding its safe range. Too high temperature will result in destruction of magnetism.

*Technical advisory: Temperature resistance depends not only on the material grade, as well as the dimension ratios. Thin magnets (low Pc) risk losing magnetic properties sooner than taller cylinders. Warning indicator in the table indicates a risk of irreversible loss for this specific geometry.

Table 6: Magnet-Magnet interaction (attraction) - field range
MW 10x30 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Sliding Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	18.04 kg / 39.76 lbs 6 166 Gs	2.71 kg / 5.96 lbs 2705 g / 26.5 N	N/A
1 mm	14.65 kg / 32.31 lbs 11 003 Gs	2.20 kg / 4.85 lbs 2198 g / 21.6 N	13.19 kg / 29.08 lbs ~0 Gs
2 mm	11.65 kg / 25.68 lbs 9 810 Gs	1.75 kg / 3.85 lbs 1747 g / 17.1 N	10.48 kg / 23.11 lbs ~0 Gs
3 mm	9.13 kg / 20.12 lbs 8 684 Gs	1.37 kg / 3.02 lbs 1369 g / 13.4 N	8.21 kg / 18.11 lbs ~0 Gs
5 mm	5.45 kg / 12.02 lbs 6 710 Gs	0.82 kg / 1.80 lbs 818 g / 8.0 N	4.91 kg / 10.82 lbs ~0 Gs
10 mm	1.49 kg / 3.28 lbs 3 507 Gs	0.22 kg / 0.49 lbs 223 g / 2.2 N	1.34 kg / 2.95 lbs ~0 Gs
20 mm	0.18 kg / 0.39 lbs 1 213 Gs	0.03 kg / 0.06 lbs 27 g / 0.3 N	0.16 kg / 0.35 lbs ~0 Gs
50 mm	0.00 kg / 0.01 lbs 190 Gs	0.00 kg / 0.00 lbs 1 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs
60 mm	0.00 kg / 0.00 lbs 126 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 88 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 64 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 48 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 37 Gs	0.00 kg / 0.00 lbs 0 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs

Two magnets attract each other from a significantly greater distance than a neodymium and metal combination. Such a system of magnet-to-magnet produces a massive flux and a further horizon of performance. Designing a powerful holder? Apply two magnets instead of one magnet and a striker plate. Be careful that when bringing together two magnets, the pinch force is massive. The repulsion force is marginally weaker than the connection force, but still impressive.
*Flux density in repulsion mode is approximately ~0 Gs at the geometric center of the gap (due to field cancellation).
Attention: Calculations show sliding force of a pair of same neodymium magnets (friction ~0.15 for Ni-Ni coating).

Table 7: Hazards (implants) - precautionary measures
MW 10x30 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	8.5 cm
Hearing aid	10 Gs (1.0 mT)	6.5 cm
Timepiece	20 Gs (2.0 mT)	5.0 cm
Mobile device	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 poses a serious hazard to IT equipment and pacemakers. These NdFeB products generate a field that prevents correct functioning of digital equipment. Remember: the unseen radiation passes through tissues and plastic. Special caution must be taken by people with hearing aids and drug dispensers. Also at risk are: mechanical watches, car keys, speakers, and screens. Do not bring the product near payment cards, hard drives, or sensitive navigation tools.

Table 8: Impact energy (cracking risk) - warning
MW 10x30 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	10.58 km/h (2.94 m/s)	0.08 J
30 mm	18.21 km/h (5.06 m/s)	0.23 J
50 mm	23.51 km/h (6.53 m/s)	0.38 J
100 mm	33.24 km/h (9.23 m/s)	0.75 J

NdFeB products are delicate – a strong collision with metal can result in shattering. Pay attention to connection velocity – a neodymium left loose turns into a projectile. Striking energy can cause material chips or dangerous crushing to skin. Hold the magnet firmly during bringing near metal so it doesn't hit with great force against the metal. A collision at high speed ends with a crack of the magnet. Use safety goggles when handling with powerful specimens.

Table 9: Coating parameters (durability)
MW 10x30 / N38

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

Neodymium magnets are highly susceptible to corrosion without proper protection. The silver nickel coating also serves an aesthetic function but is not fully waterproof.

Table 10: Electrical data (P_c)
MW 10x30 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	5 528 Mx	55.3 µWb
P_c Coefficient	1.38	High (Stable)

Flux value emitted by the pole surface. Essential parameter when building generators as well as sensors. The P_c coefficient defines the magnet's operating point.

Table 11: Physics of underwater searching
MW 10x30 / N38

Environment	Effective steel pull	Effect
Air (land)	1.92 kg	Standard
Water (riverbed)	2.20 kg (+0.28 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.

The magnetic field penetrates through water without any losses. However, remember the water resistance when pulling the rope quickly.

1. Shear force

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

2. Steel thickness impact

*Thin steel (e.g. computer case) severely limits the holding force.

3. Heat tolerance

*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) = 1.38

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%

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: 010009-2026

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The offered product is an extremely powerful cylinder magnet, composed of advanced NdFeB material, which, with dimensions of Ø10x30 mm, guarantees the highest energy density. The MW 10x30 / N38 model features a tolerance of ±0.1mm and professional build quality, making it an excellent solution for professional engineers and designers. As a cylindrical magnet with significant force (approx. 1.92 kg), this product is available off-the-shelf from our warehouse in Poland, ensuring rapid order fulfillment. Furthermore, its Ni-Cu-Ni coating shields it against corrosion in typical operating conditions, ensuring an aesthetic appearance and durability for years.

It successfully proves itself in modeling, advanced automation, and broadly understood industry, serving as a positioning or actuating element. Thanks to the high power of 18.79 N with a weight of only 17.67 g, this cylindrical magnet is indispensable in electronics and wherever low weight is crucial.

Since our magnets have a very precise dimensions, the recommended way is to glue them into holes with a slightly larger diameter (e.g., 10.1 mm) using epoxy glues. To ensure long-term durability in industry, specialized industrial adhesives are used, which are safe for nickel and fill the gap, guaranteeing durability of the connection.

Magnets N38 are strong enough for 90% of applications in automation and machine building, where excessive miniaturization with maximum force is not required. If you need even stronger magnets in the same volume (Ø10x30), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard in continuous sale in our store.

This model is characterized by dimensions Ø10x30 mm, which, at a weight of 17.67 g, makes it an element with high magnetic energy density. The key parameter here is the lifting capacity amounting to approximately 1.92 kg (force ~18.79 N), which, with such defined dimensions, proves the high grade of the NdFeB material. The product has a [NiCuNi] coating, which protects the surface against oxidation, giving it an aesthetic, silvery shine.

Standardly, the magnetic axis runs through the center of the cylinder, causing the greatest attraction force to occur on the bases with a diameter of 10 mm. Such an arrangement is standard when connecting magnets in stacks (e.g., in filters) or when mounting in sockets at the bottom of a hole. On request, we can also produce versions magnetized through the diameter if your project requires it.

Pros as well as cons of rare earth magnets.

Benefits

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

They have unchanged lifting capacity, and over around 10 years their attraction force decreases symbolically – ~1% (in testing),
Magnets very well resist against demagnetization caused by external fields,
The use of an shiny layer of noble metals (nickel, gold, silver) causes the element to have aesthetics,
The surface of neodymium magnets generates a powerful magnetic field – this is a key feature,
Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and are able to act (depending on the shape) even at a temperature of 230°C or more...
In view of the potential of accurate shaping and customization to individualized projects, neodymium magnets can be manufactured in a broad palette of geometric configurations, which makes them more universal,
Fundamental importance in modern industrial fields – they are used in mass storage devices, drive modules, medical equipment, as well as modern systems.
Thanks to concentrated force, small magnets offer high operating force, occupying minimum space,

Weaknesses

Disadvantages of NdFeB magnets:

At very strong impacts they can crack, therefore we recommend placing them in special holders. A metal housing provides additional protection against damage and increases the magnet's durability.
NdFeB magnets lose power when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop of power (a factor is the shape as well as dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are very resistant to heat
Due to the susceptibility of magnets to corrosion in a humid environment, we recommend using waterproof magnets made of rubber, plastic or other material resistant to moisture, in case of application outdoors
Limited possibility of producing threads in the magnet and complex forms - preferred is casing - mounting mechanism.
Potential hazard resulting from small fragments of magnets can be dangerous, if swallowed, which gains importance in the context of child health protection. Furthermore, small components of these magnets are able to complicate diagnosis medical after entering the body.
With large orders the cost of neodymium magnets can be a barrier,

Pull force analysis

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

The lifting capacity listed is a measurement result executed under specific, ideal conditions:

using a base made of mild steel, acting as a circuit closing element
with a thickness minimum 10 mm
with a plane cleaned and smooth
with zero gap (without impurities)
during detachment in a direction vertical to the mounting surface
at standard ambient temperature

Lifting capacity in practice – influencing factors

Please note that the magnet holding may be lower depending on elements below, starting with the most relevant:

Distance (between the magnet and the metal), as even a microscopic distance (e.g. 0.5 mm) can cause a drastic drop in lifting capacity by up to 50% (this also applies to paint, rust or dirt).
Load vector – maximum parameter is reached only during perpendicular pulling. The shear force of the magnet along the surface is typically several times smaller (approx. 1/5 of the lifting capacity).
Element thickness – to utilize 100% power, the steel must be adequately massive. Paper-thin metal restricts the attraction force (the magnet "punches through" it).
Chemical composition of the base – low-carbon steel attracts best. Higher carbon content decrease magnetic properties and lifting capacity.
Smoothness – full contact is obtained only on polished steel. Any scratches and bumps create air cushions, reducing force.
Thermal environment – heating the magnet results in weakening of force. Check the thermal limit for a given model.

Lifting capacity testing was conducted on plates with a smooth surface of optimal thickness, under a perpendicular pulling force, in contrast under parallel forces the load capacity is reduced by as much as fivefold. In addition, even a small distance between the magnet and the plate decreases the lifting capacity.

Precautions when working with NdFeB magnets

Medical implants

Warning for patients: Strong magnetic fields affect medical devices. Maintain at least 30 cm distance or ask another person to handle the magnets.

Choking Hazard

NdFeB magnets are not toys. Eating multiple magnets can lead to them pinching intestinal walls, which poses a critical condition and requires immediate surgery.

GPS and phone interference

A strong magnetic field negatively affects the functioning of compasses in phones and navigation systems. Maintain magnets near a device to avoid breaking the sensors.

Demagnetization risk

Control the heat. Heating the magnet to high heat will permanently weaken its magnetic structure and pulling force.

Bone fractures

Protect your hands. Two powerful magnets will join immediately with a force of several hundred kilograms, destroying anything in their path. Be careful!

Protect data

Avoid bringing magnets near a purse, laptop, or TV. The magnetism can irreversibly ruin these devices and wipe information from cards.

Eye protection

Neodymium magnets are ceramic materials, which means they are fragile like glass. Impact of two magnets leads to them breaking into small pieces.

Warning for allergy sufferers

Some people have a sensitization to nickel, which is the typical protective layer for NdFeB magnets. Prolonged contact may cause an allergic reaction. It is best to wear safety gloves.

Conscious usage

Be careful. Rare earth magnets act from a distance and connect with huge force, often quicker than you can react.

Machining danger

Combustion risk: Rare earth powder is highly flammable. Avoid machining magnets in home conditions as this may cause fire.

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

MW 10x30 / N38 - cylindrical magnet

Technical specification of the product - MW 10x30 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Engineering modeling of the magnet - data

Table 1: Static force (force vs distance) - power drop MW 10x30 / N38

Table 2: Slippage force (wall) MW 10x30 / N38

Table 3: Vertical assembly (sliding) - vertical pull MW 10x30 / N38

Table 4: Material efficiency (saturation) - power losses MW 10x30 / N38

Table 5: Thermal resistance (material behavior) - power drop MW 10x30 / N38

Table 6: Magnet-Magnet interaction (attraction) - field range MW 10x30 / N38

Table 7: Hazards (implants) - precautionary measures MW 10x30 / N38

Table 8: Impact energy (cracking risk) - warning MW 10x30 / N38

Table 9: Coating parameters (durability) MW 10x30 / N38

Table 10: Electrical data (Pc) MW 10x30 / N38

Table 11: Physics of underwater searching MW 10x30 / N38

1. Shear force

2. Steel thickness impact

3. Heat tolerance

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

Elemental analysis

Sustainability

Pulling force

Magnetic Induction

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MP 10x4.3x4 / N38 - ring magnet

SM 25x250 [2xM8] / N52 - magnetic separator

BM 650x180x70 [4x M8] - magnetic beam

Pros as well as cons of rare earth magnets.

Benefits

Weaknesses

Pull force analysis

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

Lifting capacity in practice – influencing factors

Precautions when working with NdFeB magnets

Medical implants

Choking Hazard

GPS and phone interference

Demagnetization risk

Bone fractures

Protect data

Eye protection

Warning for allergy sufferers

Conscious usage

Machining danger

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (force vs distance) - power drop
MW 10x30 / N38

Table 2: Slippage force (wall)
MW 10x30 / N38

Table 3: Vertical assembly (sliding) - vertical pull
MW 10x30 / N38

Table 4: Material efficiency (saturation) - power losses
MW 10x30 / N38

Table 5: Thermal resistance (material behavior) - power drop
MW 10x30 / N38

Table 6: Magnet-Magnet interaction (attraction) - field range
MW 10x30 / N38

Table 7: Hazards (implants) - precautionary measures
MW 10x30 / N38

Table 8: Impact energy (cracking risk) - warning
MW 10x30 / N38

Table 9: Coating parameters (durability)
MW 10x30 / N38

Table 10: Electrical data (P_c)
MW 10x30 / N38

Table 11: Physics of underwater searching
MW 10x30 / N38