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MW 29.9x10 / 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 010052

GTIN/EAN: 5906301810513

Diameter Ø

29.9 mm [±0,1 mm]

Height

10 mm [±0,1 mm]

Weight

52.66 g

Magnetization Direction

→ diametrical

Load capacity

21.50 kg / 210.90 N

Magnetic Induction

344.60 mT / 3446 Gs

Coating

[NiCuNi] Nickel

check properties »

24.60 ZŁ with VAT / pcs + price for transport

20.00 ZŁ net + 23% VAT / pcs

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Detailed specification - MW 29.9x10 / N38 - cylindrical magnet

Specification / characteristics - MW 29.9x10 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010052
GTIN/EAN	5906301810513
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	29.9 mm [±0,1 mm]
Height	10 mm [±0,1 mm]
Weight	52.66 g
Magnetization Direction	→ diametrical
Load capacity ~ ?	21.50 kg / 210.90 N
Magnetic Induction ~ ?	344.60 mT / 3446 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 29.9x10 / 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 - report

The following values constitute the direct effect of a mathematical analysis. Results rely on algorithms for the class Nd₂Fe₁₄B. Actual conditions may differ from theoretical values. Please consider these calculations as a preliminary roadmap during assembly planning.

Table 1: Static force (pull vs gap) - interaction chart
MW 29.9x10 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	3445 Gs 344.5 mT	21.50 kg / 47.40 LBS 21500.0 g / 210.9 N	crushing
1 mm	3261 Gs 326.1 mT	19.26 kg / 42.45 LBS 19256.6 g / 188.9 N	crushing
2 mm	3059 Gs 305.9 mT	16.95 kg / 37.36 LBS 16947.4 g / 166.3 N	crushing
3 mm	2848 Gs 284.8 mT	14.70 kg / 32.40 LBS 14696.2 g / 144.2 N	crushing
5 mm	2425 Gs 242.5 mT	10.65 kg / 23.48 LBS 10650.1 g / 104.5 N	crushing
10 mm	1519 Gs 151.9 mT	4.18 kg / 9.21 LBS 4178.4 g / 41.0 N	strong
15 mm	930 Gs 93.0 mT	1.57 kg / 3.45 LBS 1565.8 g / 15.4 N	low risk
20 mm	583 Gs 58.3 mT	0.62 kg / 1.36 LBS 616.0 g / 6.0 N	low risk
30 mm	258 Gs 25.8 mT	0.12 kg / 0.27 LBS 121.0 g / 1.2 N	low risk
50 mm	76 Gs 7.6 mT	0.01 kg / 0.02 LBS 10.4 g / 0.1 N	low risk

Grip strength decreases sharply with every mm of spacing. Keep in mind that even the smallest gap (e.g., dirt, paint, veneer) significantly reduces the pull force. Neodymiums operate optimally during direct contact; distance weakens the power. Analyze how quickly the load capacity fall, when the product does not adhere tightly to the steel surface. When calculating the assembly, eliminate redundant distances.

Table 2: Sliding capacity (wall)
MW 29.9x10 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	4.30 kg / 9.48 LBS 4300.0 g / 42.2 N
1 mm	Stal (~0.2)	3.85 kg / 8.49 LBS 3852.0 g / 37.8 N
2 mm	Stal (~0.2)	3.39 kg / 7.47 LBS 3390.0 g / 33.3 N
3 mm	Stal (~0.2)	2.94 kg / 6.48 LBS 2940.0 g / 28.8 N
5 mm	Stal (~0.2)	2.13 kg / 4.70 LBS 2130.0 g / 20.9 N
10 mm	Stal (~0.2)	0.84 kg / 1.84 LBS 836.0 g / 8.2 N
15 mm	Stal (~0.2)	0.31 kg / 0.69 LBS 314.0 g / 3.1 N
20 mm	Stal (~0.2)	0.12 kg / 0.27 LBS 124.0 g / 1.2 N
30 mm	Stal (~0.2)	0.02 kg / 0.05 LBS 24.0 g / 0.2 N
50 mm	Stal (~0.2)	0.00 kg / 0.00 LBS 2.0 g / 0.0 N

This section indicates the estimated weight limit needed to start the slippage of the magnet downwards against a upright steel plate (assuming typical friction). This parameter is relative to the gap size between the magnet and the surface.

Table 3: Wall mounting (shearing) - vertical pull
MW 29.9x10 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	6.45 kg / 14.22 LBS 6450.0 g / 63.3 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	4.30 kg / 9.48 LBS 4300.0 g / 42.2 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	2.15 kg / 4.74 LBS 2150.0 g / 21.1 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	10.75 kg / 23.70 LBS 10750.0 g / 105.5 N

When hanging a element on a upright wall (e.g., a fridge), it you can count on just approx. 1/5 of its nominal power. Gravity and a weak degree of grip mean that products slip easier than they detach. Planning a hanger? Remember that the sliding force is noticeably lower than the maximum static pull force. On a smooth steel, the magnet will give way down under a noticeably lighter weight. Using a rubber layer can effectively increase the grip.

Table 4: Steel thickness (saturation) - power losses
MW 29.9x10 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	5%	1.08 kg / 2.37 LBS 1075.0 g / 10.5 N
1 mm	13%	2.69 kg / 5.92 LBS 2687.5 g / 26.4 N
2 mm	25%	5.38 kg / 11.85 LBS 5375.0 g / 52.7 N
3 mm	38%	8.06 kg / 17.77 LBS 8062.5 g / 79.1 N
5 mm	63%	13.44 kg / 29.62 LBS 13437.5 g / 131.8 N
10 mm	100%	21.50 kg / 47.40 LBS 21500.0 g / 210.9 N
11 mm	100%	21.50 kg / 47.40 LBS 21500.0 g / 210.9 N
12 mm	100%	21.50 kg / 47.40 LBS 21500.0 g / 210.9 N

A thin sheet is not enough to absorb the entire magnetic field, which squanders power 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 100% of this neodymium's power, you need a suitably thick piece of steel. The saturation phenomenon means that on delicate walls (e.g., car bodies), the holder holds weaker. We suggest choosing the steel dimension from these parameters.

Table 5: Thermal resistance (stability) - power drop
MW 29.9x10 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	21.50 kg / 47.40 LBS 21500.0 g / 210.9 N	OK
40 °C	-2.2%	21.03 kg / 46.36 LBS 21027.0 g / 206.3 N	OK
60 °C	-4.4%	20.55 kg / 45.31 LBS 20554.0 g / 201.6 N
80 °C	-6.6%	20.08 kg / 44.27 LBS 20081.0 g / 197.0 N
100 °C	-28.8%	15.31 kg / 33.75 LBS 15308.0 g / 150.2 N

Standard neodymium magnets lose strength after exceeding the maximum temperature. Protect against heat – high temperature can irreversibly damage this product. With increasing heat, the neodymium's force momentarily decreases. Refrain from using this product in hot environments exceeding its safe range. Too high temperature will result in irreversible degradation of magnetism.

*Engineering note: Thermal stability depends not only on the material grade, as well as the dimension ratios. Flat magnets (low permeance coefficient) risk losing magnetic properties sooner than taller cylinders. Warning indicator in the table signals permanent field degradation for this particular item.

Table 6: Two magnets (attraction) - field range
MW 29.9x10 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Lateral Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	51.38 kg / 113.28 LBS 4 963 Gs	7.71 kg / 16.99 LBS 7708 g / 75.6 N	N/A
1 mm	48.76 kg / 107.50 LBS 6 712 Gs	7.31 kg / 16.12 LBS 7314 g / 71.7 N	43.88 kg / 96.75 LBS ~0 Gs
2 mm	46.02 kg / 101.46 LBS 6 521 Gs	6.90 kg / 15.22 LBS 6903 g / 67.7 N	41.42 kg / 91.32 LBS ~0 Gs
3 mm	43.26 kg / 95.37 LBS 6 322 Gs	6.49 kg / 14.31 LBS 6489 g / 63.7 N	38.93 kg / 85.83 LBS ~0 Gs
5 mm	37.78 kg / 83.30 LBS 5 909 Gs	5.67 kg / 12.49 LBS 5667 g / 55.6 N	34.00 kg / 74.97 LBS ~0 Gs
10 mm	25.45 kg / 56.11 LBS 4 850 Gs	3.82 kg / 8.42 LBS 3818 g / 37.5 N	22.91 kg / 50.50 LBS ~0 Gs
20 mm	9.99 kg / 22.02 LBS 3 038 Gs	1.50 kg / 3.30 LBS 1498 g / 14.7 N	8.99 kg / 19.81 LBS ~0 Gs
50 mm	0.63 kg / 1.38 LBS 761 Gs	0.09 kg / 0.21 LBS 94 g / 0.9 N	0.56 kg / 1.24 LBS ~0 Gs
60 mm	0.29 kg / 0.64 LBS 517 Gs	0.04 kg / 0.10 LBS 43 g / 0.4 N	0.26 kg / 0.57 LBS ~0 Gs
70 mm	0.14 kg / 0.32 LBS 364 Gs	0.02 kg / 0.05 LBS 22 g / 0.2 N	0.13 kg / 0.28 LBS ~0 Gs
80 mm	0.08 kg / 0.17 LBS 265 Gs	0.01 kg / 0.03 LBS 11 g / 0.1 N	0.07 kg / 0.15 LBS ~0 Gs
90 mm	0.04 kg / 0.09 LBS 198 Gs	0.01 kg / 0.01 LBS 6 g / 0.1 N	0.04 kg / 0.08 LBS ~0 Gs
100 mm	0.02 kg / 0.05 LBS 152 Gs	0.00 kg / 0.01 LBS 4 g / 0.0 N	0.02 kg / 0.05 LBS ~0 Gs

Two magnetic products interact from a much further distance than a magnet and sheet setup. The connection of magnet-to-magnet generates a stronger field and a further horizon of action. Planning to create a strong closure? Utilize two neodymiums instead of one magnet and a striker plate. Be careful that when connecting a pair of 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 midpoint between the magnets (resulting from vector opposition).
Attention: Figures demonstrate sliding force of two same magnets (friction coefficient ~0.15 for Ni-Ni coating).

Table 7: Safety (HSE) (implants) - warnings
MW 29.9x10 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	13.5 cm
Hearing aid	10 Gs (1.0 mT)	11.0 cm
Timepiece	20 Gs (2.0 mT)	8.5 cm
Phone / Smartphone	40 Gs (4.0 mT)	6.5 cm
Car key	50 Gs (5.0 mT)	6.0 cm
Payment card	400 Gs (40.0 mT)	2.5 cm
HDD hard drive	600 Gs (60.0 mT)	2.0 cm

A strong magnetic field poses a real danger to electronic devices and medical implants. These NdFeB products generate a flux that destroys function of sensitive medical devices. Remember: the unseen radiation passes through tissues and plastic. Exceptional care must be taken by people with cochlear implants and insulin pumps. Also at risk are: mechanical watches, remotes, membranes, and displays. Do not bring the product near payment cards, HDD media, or precise measuring instruments.

Table 8: Collisions (cracking risk) - collision effects
MW 29.9x10 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	22.72 km/h (6.31 m/s)	1.05 J
30 mm	35.42 km/h (9.84 m/s)	2.55 J
50 mm	45.58 km/h (12.66 m/s)	4.22 J
100 mm	64.44 km/h (17.90 m/s)	8.44 J

Neodymium magnets are prone to chipping – a violent impact against metal risks their cracking. Watch the impact speed – a magnet released freely speeds with massive force. Kinetic force can destroy the magnet or dangerous crushing to skin. Be sure to control the product during mounting so it doesn't hit violently against the steel surface. A contact at a velocity of dozens of km/h almost guarantees destruction of the neodymium. Wear eye protection when handling with powerful specimens.

Table 9: Surface protection spec
MW 29.9x10 / 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 (Flux)
MW 29.9x10 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	25 588 Mx	255.9 µWb
P_c Coefficient	0.44	Low (Flat)

Flux value emitted by the pole surface. Essential parameter in coil applications as well as sensors. P_c value defines the working geometry.

Table 11: Hydrostatics and buoyancy
MW 29.9x10 / N38

Environment	Effective steel pull	Effect
Air (land)	21.50 kg	Standard
Water (riverbed)	24.62 kg (+3.12 kg buoyancy gain)	+14.5%

Warning: Standard nickel requires drying after every contact with moisture; lack of maintenance will lead to rust spots.

In water, the magnet feels stronger thanks to Archimedes' principle. As a result, your magnet will pull a heavier object from the bottom than if you lifted it in the air.

1. Vertical hold

*Caution: On a vertical wall, the magnet holds only a fraction of its nominal pull.

2. Steel saturation

*Thin steel (e.g. computer case) significantly reduces the holding force.

3. Temperature resistance

*For N38 grade, the critical limit is 80°C.

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 0.44

This simulation demonstrates the magnetic stability of the selected magnet under specific geometric conditions. The solid red line represents the demagnetization curve (material potential), while the dashed blue line is the load line based on the magnet's geometry. The P_c (Permeance Coefficient), also known as the load line slope, is a dimensionless value that describes the relationship between the magnet's shape and its magnetic stability. The intersection of these two lines (the black dot) is the operating point — it determines the actual magnetic flux density generated by the magnet in this specific configuration. A higher P_c value means the magnet is more 'slender' (tall relative to its area), resulting in a higher operating point and better resistance to irreversible demagnetization caused by external fields or temperature. A value of 0.42 is relatively low (typical for flat magnets), meaning the operating point is closer to the 'knee' of the curve — caution is advised when operating at temperatures near the maximum limit to avoid strength loss.

Technical 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: 010052-2026

Magnet Unit Converter

Pulling force

Force in kg

Force (N)

lbs

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Simply complete one field, to let the converter compute everything else automatically.

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The presented product is an extremely powerful cylindrical magnet, manufactured from durable NdFeB material, which, with dimensions of Ø29.9x10 mm, guarantees optimal power. The MW 29.9x10 / N38 component is characterized by a tolerance of ±0.1mm and professional build quality, making it an ideal solution for the most demanding engineers and designers. As a magnetic rod with impressive force (approx. 21.50 kg), this product is available off-the-shelf from our European logistics center, ensuring quick order fulfillment. Furthermore, its Ni-Cu-Ni coating secures it against corrosion in standard operating conditions, ensuring an aesthetic appearance and durability for years.

This model is perfect for building generators, advanced Hall effect sensors, and efficient filters, where field concentration on a small surface counts. Thanks to the high power of 210.90 N with a weight of only 52.66 g, this cylindrical magnet is indispensable in electronics and wherever low weight is crucial.

Due to the brittleness of the NdFeB material, we absolutely advise against force-fitting (so-called press-fit), as this risks immediate cracking of this precision component. To ensure stability in industry, anaerobic resins are used, which are safe for nickel and fill the gap, guaranteeing durability of the connection.

Magnets NdFeB grade N38 are suitable for 90% of applications in automation and machine building, where extreme miniaturization with maximum force is not required. If you need even stronger magnets in the same volume (Ø29.9x10), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard in continuous sale in our warehouse.

The presented product is a neodymium magnet with precisely defined parameters: diameter 29.9 mm and height 10 mm. The key parameter here is the holding force amounting to approximately 21.50 kg (force ~210.90 N), which, with such compact dimensions, proves the high grade of the NdFeB material. The product has a [NiCuNi] coating, which secures it against oxidation, giving it an aesthetic, silvery shine.

This cylinder is magnetized axially (along the height of 10 mm), which means that the N and S poles are located on the flat, circular surfaces. Such an arrangement is most desirable 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.

Advantages

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

They virtually do not lose power, because even after ten years the performance loss is only ~1% (according to literature),
They do not lose their magnetic properties even under strong external field,
Thanks to the smooth finish, the plating of nickel, gold-plated, or silver-plated gives an visually attractive appearance,
The surface of neodymium magnets generates a intense magnetic field – this is one of their assets,
Neodymium magnets are characterized by very high magnetic induction on the magnet surface and can function (depending on the form) even at a temperature of 230°C or more...
Possibility of accurate forming as well as adapting to specific applications,
Wide application in high-tech industry – they are utilized in mass storage devices, electric drive systems, medical equipment, also complex engineering applications.
Thanks to concentrated force, small magnets offer high operating force, with minimal size,

Cons

Drawbacks and weaknesses of neodymium magnets: tips and applications.

They are fragile upon too strong impacts. To avoid cracks, it is worth protecting magnets in special housings. Such protection not only shields the magnet but also improves its resistance to damage
Neodymium magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop of strength (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 extremely resistant to heat
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.
We recommend casing - magnetic mount, due to difficulties in realizing nuts inside the magnet and complicated shapes.
Health risk to health – tiny shards of magnets pose a threat, in case of ingestion, which gains importance in the context of child health protection. Additionally, small components of these devices can be problematic in diagnostics medical after entering the body.
Higher cost of purchase is one of the disadvantages compared to ceramic magnets, especially in budget applications

Holding force characteristics

Magnetic strength at its maximum – what contributes to it?

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

using a base made of high-permeability steel, functioning as a circuit closing element
with a thickness minimum 10 mm
with an ideally smooth touching surface
with direct contact (no coatings)
during detachment in a direction vertical to the plane
at conditions approx. 20°C

What influences lifting capacity in practice

In real-world applications, the actual holding force depends on a number of factors, listed from the most important:

Distance (between the magnet and the metal), because even a microscopic distance (e.g. 0.5 mm) results in a reduction in lifting capacity by up to 50% (this also applies to varnish, corrosion or dirt).
Angle of force application – highest force is obtained only during pulling at a 90° angle. The resistance to sliding of the magnet along the plate is typically several times smaller (approx. 1/5 of the lifting capacity).
Plate thickness – too thin sheet causes magnetic saturation, causing part of the flux to be escaped to the other side.
Steel grade – ideal substrate is high-permeability steel. Cast iron may attract less.
Smoothness – ideal contact is possible only on smooth steel. Rough texture create air cushions, weakening the magnet.
Temperature – heating the magnet results in weakening of induction. Check the thermal limit for a given model.

Lifting capacity was determined with the use of a steel plate with a smooth surface of suitable thickness (min. 20 mm), under perpendicular detachment force, however under attempts to slide the magnet the load capacity is reduced by as much as fivefold. Moreover, even a slight gap between the magnet’s surface and the plate decreases the load capacity.

H&S for magnets

Fire warning

Fire warning: Neodymium dust is explosive. Do not process magnets in home conditions as this risks ignition.

Caution required

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

Serious injuries

Big blocks can crush fingers in a fraction of a second. Do not put your hand between two attracting surfaces.

Choking Hazard

Only for adults. Tiny parts pose a choking risk, causing intestinal necrosis. Keep out of reach of children and animals.

Allergy Warning

Nickel alert: The Ni-Cu-Ni coating contains nickel. If skin irritation appears, cease handling magnets and wear gloves.

Health Danger

Individuals with a ICD must keep an absolute distance from magnets. The magnetism can interfere with the operation of the life-saving device.

Compass and GPS

GPS units and smartphones are extremely sensitive to magnetic fields. Direct contact with a powerful NdFeB magnet can decalibrate the sensors in your phone.

Do not overheat magnets

Do not overheat. Neodymium magnets are sensitive to temperature. If you need operation above 80°C, ask us about HT versions (H, SH, UH).

Magnets are brittle

Despite the nickel coating, the material is brittle and not impact-resistant. Avoid impacts, as the magnet may shatter into hazardous fragments.

Safe distance

Intense magnetic fields can destroy records on payment cards, hard drives, and storage devices. Maintain a gap of at least 10 cm.

Important! Learn more about hazards in the article: Safety of working with magnets.

MW 29.9x10 / N38 - cylindrical magnet

Detailed specification - MW 29.9x10 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Engineering modeling of the magnet - report

Table 1: Static force (pull vs gap) - interaction chart MW 29.9x10 / N38

Table 2: Sliding capacity (wall) MW 29.9x10 / N38

Table 3: Wall mounting (shearing) - vertical pull MW 29.9x10 / N38

Table 4: Steel thickness (saturation) - power losses MW 29.9x10 / N38

Table 5: Thermal resistance (stability) - power drop MW 29.9x10 / N38

Table 6: Two magnets (attraction) - field range MW 29.9x10 / N38

Table 7: Safety (HSE) (implants) - warnings MW 29.9x10 / N38

Table 8: Collisions (cracking risk) - collision effects MW 29.9x10 / N38

Table 9: Surface protection spec MW 29.9x10 / N38

Table 10: Construction data (Flux) MW 29.9x10 / N38

Table 11: Hydrostatics and buoyancy MW 29.9x10 / N38

1. Vertical hold

2. Steel saturation

3. Temperature resistance

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

Elemental analysis

Environmental data

Pulling force

Magnetic Induction

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Pros as well as cons of rare earth magnets.

Advantages

Cons

Holding force characteristics

Magnetic strength at its maximum – what contributes to it?

What influences lifting capacity in practice

H&S for magnets

Fire warning

Caution required

Serious injuries

Choking Hazard

Allergy Warning

Health Danger

Compass and GPS

Do not overheat magnets

Magnets are brittle

Safe distance

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (pull vs gap) - interaction chart
MW 29.9x10 / N38

Table 2: Sliding capacity (wall)
MW 29.9x10 / N38

Table 3: Wall mounting (shearing) - vertical pull
MW 29.9x10 / N38

Table 4: Steel thickness (saturation) - power losses
MW 29.9x10 / N38

Table 5: Thermal resistance (stability) - power drop
MW 29.9x10 / N38

Table 6: Two magnets (attraction) - field range
MW 29.9x10 / N38

Table 7: Safety (HSE) (implants) - warnings
MW 29.9x10 / N38

Table 8: Collisions (cracking risk) - collision effects
MW 29.9x10 / N38

Table 9: Surface protection spec
MW 29.9x10 / N38

Table 10: Construction data (Flux)
MW 29.9x10 / N38

Table 11: Hydrostatics and buoyancy
MW 29.9x10 / N38