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MW 8x8 / 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: 1-6500
Rating: 5

cylindrical magnet

Catalog no 010106

GTIN/EAN: 5906301811053

5.00

Diameter Ø

8 mm [±0,1 mm]

Height

8 mm [±0,1 mm]

Weight

3.02 g

Magnetization Direction

↑ axial

Load capacity

2.03 kg / 19.92 N

Magnetic Induction

553.67 mT / 5537 Gs

Coating

[NiCuNi] Nickel

check properties »

1.341 ZŁ with VAT / pcs + price for transport

1.090 ZŁ net + 23% VAT / pcs

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Technical of the product - MW 8x8 / N38 - cylindrical magnet

Specification / characteristics - MW 8x8 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010106
GTIN/EAN	5906301811053
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	8 mm [±0,1 mm]
Height	8 mm [±0,1 mm]
Weight	3.02 g
Magnetization Direction	↑ axial
Load capacity ~ ?	2.03 kg / 19.92 N
Magnetic Induction ~ ?	553.67 mT / 5537 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 8x8 / 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 simulation of the assembly - data

These data are the result of a engineering simulation. Values were calculated on algorithms for the class Nd₂Fe₁₄B. Actual parameters might slightly differ from theoretical values. Use these data as a preliminary roadmap when designing systems.

Table 1: Static force (force vs distance) - characteristics
MW 8x8 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg)	Risk Status
0 mm	5531 Gs 553.1 mT	2.03 kg / 2030.0 g 19.9 N	warning
1 mm	4162 Gs 416.2 mT	1.15 kg / 1149.3 g 11.3 N	safe
2 mm	2984 Gs 298.4 mT	0.59 kg / 590.7 g 5.8 N	safe
3 mm	2107 Gs 210.7 mT	0.29 kg / 294.5 g 2.9 N	safe
5 mm	1084 Gs 108.4 mT	0.08 kg / 78.0 g 0.8 N	safe
10 mm	296 Gs 29.6 mT	0.01 kg / 5.8 g 0.1 N	safe
15 mm	118 Gs 11.8 mT	0.00 kg / 0.9 g 0.0 N	safe
20 mm	58 Gs 5.8 mT	0.00 kg / 0.2 g 0.0 N	safe
30 mm	20 Gs 2.0 mT	0.00 kg / 0.0 g 0.0 N	safe
50 mm	5 Gs 0.5 mT	0.00 kg / 0.0 g 0.0 N	safe

Pulling power drops sharply with every subsequent millimeter of spacing. Note that every additional insulation layer (e.g., dirt, varnish, dust) noticeably reduces the pull force. Magnetic products work most effectively in perfect adhesion; air break kills the force. See how rapidly the parameters plummet, when the magnet does not adhere directly to the metal substrate. When designing the arrangement, eliminate unnecessary gaps.

Table 2: Slippage load (wall)
MW 8x8 / N38

Distance (mm)	Friction coefficient	Pull Force (kg)
0 mm	Stal (~0.2)	0.41 kg / 406.0 g 4.0 N
1 mm	Stal (~0.2)	0.23 kg / 230.0 g 2.3 N
2 mm	Stal (~0.2)	0.12 kg / 118.0 g 1.2 N
3 mm	Stal (~0.2)	0.06 kg / 58.0 g 0.6 N
5 mm	Stal (~0.2)	0.02 kg / 16.0 g 0.2 N
10 mm	Stal (~0.2)	0.00 kg / 2.0 g 0.0 N
15 mm	Stal (~0.2)	0.00 kg / 0.0 g 0.0 N
20 mm	Stal (~0.2)	0.00 kg / 0.0 g 0.0 N
30 mm	Stal (~0.2)	0.00 kg / 0.0 g 0.0 N
50 mm	Stal (~0.2)	0.00 kg / 0.0 g 0.0 N

This section calculates the approximate weight limit necessary to start the sliding of the magnet down along a upright metal surface (assuming typical friction). This parameter is a function of the separation distance between the magnet and the metal.

Table 3: Wall mounting (sliding) - behavior on slippery surfaces
MW 8x8 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg)
Raw steel	µ = 0.3 30% Nominalnej Siły	0.61 kg / 609.0 g 6.0 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.41 kg / 406.0 g 4.0 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.20 kg / 203.0 g 2.0 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	1.02 kg / 1015.0 g 10.0 N

When hanging a element on a vertical surface (e.g., a car body), it will only hold just approx. 1/5 of nominal attraction strength. Gravitational force as well as a low friction coefficient cause that products slip easier than they pull off. Planning a hanger? Consider that the shear force is significantly lower than the perpendicular breakaway force. On a smooth steel, the magnet will slip down under a significantly smaller load. Application of an anti-slip layer can effectively increase the grip.

Table 4: Steel thickness (substrate influence) - power losses
MW 8x8 / N38

Steel thickness (mm)	% power	Real pull force (kg)
0.5 mm	10%	0.20 kg / 203.0 g 2.0 N
1 mm	25%	0.51 kg / 507.5 g 5.0 N
2 mm	50%	1.02 kg / 1015.0 g 10.0 N
5 mm	100%	2.03 kg / 2030.0 g 19.9 N
10 mm	100%	2.03 kg / 2030.0 g 19.9 N

A thin sheet is unable to take in the full magnetic flux, which weakens actual performance of the holder. If you mount a strong magnet to a too thin substrate, the magnetism will penetrate right through and the attraction force will be weaker. To achieve the maximum of this neodymium's potential, you require a sufficiently solid element of steel. The material oversaturation causes that on sheet metal structures (e.g., thin profiles), the holder shows lower pull force. We advise picking the steel thickness based on the following data.

Table 5: Thermal resistance (stability) - thermal limit
MW 8x8 / N38

Ambient temp. (°C)	Power loss	Remaining pull	Status
20 °C	0.0%	2.03 kg / 2030.0 g 19.9 N	OK
40 °C	-2.2%	1.99 kg / 1985.3 g 19.5 N	OK
60 °C	-4.4%	1.94 kg / 1940.7 g 19.0 N	OK
80 °C	-6.6%	1.90 kg / 1896.0 g 18.6 N
100 °C	-28.8%	1.45 kg / 1445.4 g 14.2 N

Standard neodymium magnets irreversibly lose strength past the thermal threshold. Protect against heat – heat can irreversibly damage this product. As the temperature rises, the magnet's power temporarily drops. Do not use this magnet in hot environments exceeding its operating temperature limit. Too high temperature will result in destruction of magnetism.

*Important note: Temperature resistance is determined by both grade, as well as the dimension ratios. Low-profile magnets (pancake types) may lose charge permanently under lower heat stress than long magnets. Warning indicator in the table signals a risk of irreversible loss for this particular item.

Table 6: Two magnets (repulsion) - field range
MW 8x8 / N38

Gap (mm)	Attraction (kg) (N-S)	Repulsion (kg) (N-N)
0 mm	9.48 kg / 9481 g 93.0 N 6 000 Gs	N/A
1 mm	7.26 kg / 7262 g 71.2 N 9 682 Gs	6.54 kg / 6536 g 64.1 N ~0 Gs
2 mm	5.37 kg / 5368 g 52.7 N 8 324 Gs	4.83 kg / 4831 g 47.4 N ~0 Gs
3 mm	3.88 kg / 3877 g 38.0 N 7 074 Gs	3.49 kg / 3489 g 34.2 N ~0 Gs
5 mm	1.95 kg / 1949 g 19.1 N 5 016 Gs	1.75 kg / 1754 g 17.2 N ~0 Gs
10 mm	0.36 kg / 364 g 3.6 N 2 169 Gs	0.33 kg / 328 g 3.2 N ~0 Gs
20 mm	0.03 kg / 27 g 0.3 N 592 Gs	0.02 kg / 24 g 0.2 N ~0 Gs
50 mm	0.00 kg / 0 g 0.0 N 66 Gs	0.00 kg / 0 g 0.0 N ~0 Gs

Two strong neodymiums attract each other from a wider radius than a neodymium and metal setup. Such a system of magnet-to-magnet generates a stronger field and a wider radius of action. Planning to create a strong closure? Utilize two neodymiums instead of one magnet and a steel. Exercise caution that when attracting two neodymiums, the pinch force is massive. The repulsion force is a bit weaker than the connection force, but still significant.
*The magnetic induction between like poles drops to ~0 Gs at the geometric center of the gap (due to field cancellation).

Table 7: Protective zones (implants) - warnings
MW 8x8 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	5.5 cm
Hearing aid	10 Gs (1.0 mT)	4.0 cm
Mechanical watch	20 Gs (2.0 mT)	3.5 cm
Phone / Smartphone	40 Gs (4.0 mT)	2.5 cm
Car key	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

Extremely neodym field poses a real danger to IT equipment as well as pacemakers. These NdFeB products generate a flux that prevents correct functioning of sensitive medical devices. Remember: the invisible magnetic field acts through matter and glass. Special caution must be exercised by people with cochlear implants and drug dispensers. Also at risk are: mechanical watches, remotes, membranes, and screens. Do not place the magnet near cards, HDD media, or sensitive navigation tools.

Table 8: Dynamics (kinetic energy) - collision effects
MW 8x8 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	26.19 km/h (7.28 m/s)	0.08 J
30 mm	45.29 km/h (12.58 m/s)	0.24 J
50 mm	58.47 km/h (16.24 m/s)	0.40 J
100 mm	82.68 km/h (22.97 m/s)	0.80 J

Magnetic elements are prone to chipping – a collision with steel causes immediate chipping. Watch the impact speed – a neodymium left loose turns into a projectile. Impact energy can cause material chips or painful pinches to skin. Always hold the magnet during mounting so it doesn't hit with great force against the steel surface. A collision at high speed almost guarantees destruction of the magnet. Wear safety glasses when playing with large magnets.

Table 9: Corrosion resistance
MW 8x8 / 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 following table defines the conditions under which this product can be safely used. The silver nickel coating also serves an aesthetic function but is not fully waterproof.

Table 10: Construction data (Flux)
MW 8x8 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	2 868 Mx	28.7 µWb
P_c Coefficient	0.89	High (Stable)

Total magnetic flux passing through the magnet pole. Essential parameter when building generators and motors. P_c value determines the magnet's operating point.

Table 11: Hydrostatics and buoyancy
MW 8x8 / N38

Environment	Effective steel pull	Effect
Air (land)	2.03 kg	Standard
Water (riverbed)	2.32 kg (+0.29 kg Buoyancy gain)	+14.5%

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

Contrary to myths, water does not block the magnetic field. Buoyancy helps in lifting finds.

1. Vertical hold

*Caution: On a vertical surface, the magnet holds merely approx. 20-30% of its max power.

2. Efficiency vs thickness

*Thin steel (e.g. computer case) drastically limits 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) = 0.89

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 specification and ecology

Chemical composition

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: 010106-2025

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See more offers

Product available Ships today (order by 14:00)

HH 20x7.2 [M4] / N38 - through hole magnetic holder

6.40 ZŁ brutto / pcs

Product available Ships today (order by 14:00)

MW 8x20 / N38 - cylindrical magnet

4.60 ZŁ brutto / pcs

Product available Ships today (order by 14:00)

MW 5x30 / N38 - cylindrical magnet

3.57 ZŁ brutto / pcs

Product available Ships today (order by 14:00)

MP 22x6x10 / N38 - ring magnet

13.95 ZŁ brutto / pcs

The offered product is a very strong rod magnet, manufactured from modern NdFeB material, which, at dimensions of Ø8x8 mm, guarantees optimal power. This specific item features high dimensional repeatability and professional build quality, making it a perfect solution for professional engineers and designers. As a cylindrical magnet with impressive force (approx. 2.03 kg), this product is in stock from our European logistics center, ensuring lightning-fast order fulfillment. Moreover, its triple-layer Ni-Cu-Ni coating effectively protects it against corrosion in standard operating conditions, ensuring an aesthetic appearance and durability for years.

It successfully proves itself in DIY projects, advanced automation, and broadly understood industry, serving as a positioning or actuating element. Thanks to the high power of 19.92 N with a weight of only 3.02 g, this cylindrical magnet is indispensable in miniature devices and wherever every gram matters.

Since our magnets have a very precise dimensions, the recommended way is to glue them into holes with a slightly larger diameter (e.g., 8.1 mm) using two-component epoxy glues. To ensure stability in automation, anaerobic resins are used, which do not react with the nickel coating and fill the gap, guaranteeing high repeatability of the connection.

Magnets N38 are suitable for 90% of applications in modeling and machine building, where extreme miniaturization with maximum force is not required. If you need even stronger magnets in the same volume (Ø8x8), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard in continuous sale in our store.

The presented product is a neodymium magnet with precisely defined parameters: diameter 8 mm and height 8 mm. The value of 19.92 N means that the magnet is capable of holding a weight many times exceeding its own mass of 3.02 g. The product has a [NiCuNi] coating, which protects the surface against external factors, giving it an aesthetic, silvery shine.

This cylinder is magnetized axially (along the height of 8 mm), which means that the N and S poles are located on the flat, circular surfaces. 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 Nd₂Fe₁₄B magnets.

Benefits

In addition to their magnetic efficiency, neodymium magnets provide the following advantages:

They do not lose power, even after nearly ten years – the decrease in lifting capacity is only ~1% (based on measurements),
They possess excellent resistance to magnetism drop due to external magnetic sources,
By using a decorative coating of silver, the element gains an professional look,
The surface of neodymium magnets generates a powerful magnetic field – this is a key feature,
Due to their durability and thermal resistance, neodymium magnets can operate (depending on the form) even at high temperatures reaching 230°C or more...
Possibility of custom forming and adapting to concrete needs,
Huge importance in modern industrial fields – they serve a role in mass storage devices, electromotive mechanisms, medical devices, as well as modern systems.
Thanks to concentrated force, small magnets offer high operating force, occupying minimum space,

Disadvantages

Problematic aspects of neodymium magnets and proposals for their use:

Susceptibility to cracking is one of their disadvantages. Upon strong impact they can break. We advise keeping them in a special holder, which not only protects them against impacts but also raises their durability
Neodymium magnets lose force when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop of power (a factor is the shape and 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
They rust in a humid environment - during use outdoors we advise using waterproof magnets e.g. in rubber, plastic
Due to limitations in producing threads and complex forms in magnets, we propose using cover - magnetic mechanism.
Possible danger resulting from small fragments of magnets can be dangerous, when accidentally swallowed, which is particularly important in the aspect of protecting the youngest. It is also worth noting that small components of these magnets are able to be problematic in diagnostics medical when they are in the body.
Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications

Pull force analysis

Highest magnetic holding force – what it depends on?

The declared magnet strength represents the maximum value, measured under optimal environment, specifically:

on a block made of structural steel, effectively closing the magnetic flux
possessing a massiveness of minimum 10 mm to avoid saturation
characterized by smoothness
without any air gap between the magnet and steel
under perpendicular force direction (90-degree angle)
in temp. approx. 20°C

Practical lifting capacity: influencing factors

In real-world applications, the actual lifting capacity results from a number of factors, ranked from the most important:

Air gap (between the magnet and the metal), as even a tiny clearance (e.g. 0.5 mm) results in a reduction in lifting capacity by up to 50% (this also applies to varnish, rust or dirt).
Pull-off angle – note that the magnet has greatest strength perpendicularly. Under shear forces, the holding force drops drastically, often to levels of 20-30% of the maximum value.
Steel thickness – too thin steel causes magnetic saturation, causing part of the power to be lost to the other side.
Chemical composition of the base – mild steel gives the best results. Alloy admixtures lower magnetic permeability and holding force.
Plate texture – ground elements ensure maximum contact, which increases force. Uneven metal reduce efficiency.
Thermal environment – heating the magnet causes a temporary drop of induction. It is worth remembering the maximum operating temperature for a given model.

Lifting capacity testing was conducted on a smooth plate of optimal thickness, under a perpendicular pulling force, whereas under parallel forces the load capacity is reduced by as much as fivefold. Additionally, even a small distance between the magnet’s surface and the plate decreases the lifting capacity.

H&S for magnets

Nickel allergy

Certain individuals suffer from a sensitization to nickel, which is the typical protective layer for NdFeB magnets. Prolonged contact may cause skin redness. It is best to use protective gloves.

Heat warning

Regular neodymium magnets (N-type) undergo demagnetization when the temperature exceeds 80°C. Damage is permanent.

Hand protection

Protect your hands. Two large magnets will snap together immediately with a force of massive weight, destroying anything in their path. Be careful!

Magnet fragility

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

Fire risk

Fire hazard: Rare earth powder is explosive. Avoid machining magnets in home conditions as this risks ignition.

Do not give to children

Adult use only. Tiny parts pose a choking risk, leading to severe trauma. Store out of reach of children and animals.

Cards and drives

Powerful magnetic fields can corrupt files on credit cards, hard drives, and other magnetic media. Maintain a gap of min. 10 cm.

Respect the power

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

Warning for heart patients

Health Alert: Strong magnets can deactivate heart devices and defibrillators. Do not approach if you have electronic implants.

GPS Danger

Navigation devices and mobile phones are extremely sensitive to magnetism. Close proximity with a strong magnet can decalibrate the sensors in your phone.

Attention! Learn more about risks in the article: Safety of working with magnets.

MW 8x8 / N38 - cylindrical magnet

Technical of the product - MW 8x8 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Engineering simulation of the assembly - data

Table 1: Static force (force vs distance) - characteristics MW 8x8 / N38

Table 2: Slippage load (wall) MW 8x8 / N38

Table 3: Wall mounting (sliding) - behavior on slippery surfaces MW 8x8 / N38

Table 4: Steel thickness (substrate influence) - power losses MW 8x8 / N38

Table 5: Thermal resistance (stability) - thermal limit MW 8x8 / N38

Table 6: Two magnets (repulsion) - field range MW 8x8 / N38

Table 7: Protective zones (implants) - warnings MW 8x8 / N38

Table 8: Dynamics (kinetic energy) - collision effects MW 8x8 / N38

Table 9: Corrosion resistance MW 8x8 / N38

Table 10: Construction data (Flux) MW 8x8 / N38

Table 11: Hydrostatics and buoyancy MW 8x8 / N38

1. Vertical hold

2. Efficiency vs thickness

3. Thermal stability

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

Chemical composition

Sustainability

Magnet pull force

Magnetic Induction

See more offers

HH 20x7.2 [M4] / N38 - through hole magnetic holder

MW 8x20 / N38 - cylindrical magnet

MW 5x30 / N38 - cylindrical magnet

MP 22x6x10 / N38 - ring magnet

Pros as well as cons of Nd2Fe14B magnets.

Benefits

Disadvantages

Pull force analysis

Highest magnetic holding force – what it depends on?

Practical lifting capacity: influencing factors

H&S for magnets

Nickel allergy

Heat warning

Hand protection

Magnet fragility

Fire risk

Do not give to children

Cards and drives

Respect the power

Warning for heart patients

GPS Danger

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (force vs distance) - characteristics
MW 8x8 / N38

Table 2: Slippage load (wall)
MW 8x8 / N38

Table 3: Wall mounting (sliding) - behavior on slippery surfaces
MW 8x8 / N38

Table 4: Steel thickness (substrate influence) - power losses
MW 8x8 / N38

Table 5: Thermal resistance (stability) - thermal limit
MW 8x8 / N38

Table 6: Two magnets (repulsion) - field range
MW 8x8 / N38

Table 7: Protective zones (implants) - warnings
MW 8x8 / N38

Table 8: Dynamics (kinetic energy) - collision effects
MW 8x8 / N38

Table 9: Corrosion resistance
MW 8x8 / N38

Table 10: Construction data (Flux)
MW 8x8 / N38

Table 11: Hydrostatics and buoyancy
MW 8x8 / N38

Pros as well as cons of Nd₂Fe₁₄B magnets.