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MW 70x20 / 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 010095

GTIN/EAN: 5906301810940

5.00

Diameter Ø

70 mm [±0,1 mm]

Height

20 mm [±0,1 mm]

Weight

577.27 g

Magnetization Direction

↑ axial

Load capacity

99.83 kg / 979.31 N

Magnetic Induction

307.57 mT / 3076 Gs

Coating

[NiCuNi] Nickel

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239.85 ZŁ with VAT / pcs + price for transport

195.00 ZŁ net + 23% VAT / pcs

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Physical properties - MW 70x20 / N38 - cylindrical magnet

Specification / characteristics - MW 70x20 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010095
GTIN/EAN	5906301810940
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	70 mm [±0,1 mm]
Height	20 mm [±0,1 mm]
Weight	577.27 g
Magnetization Direction	↑ axial
Load capacity ~ ?	99.83 kg / 979.31 N
Magnetic Induction ~ ?	307.57 mT / 3076 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 70x20 / 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

Technical analysis of the magnet - report

These data are the outcome of a engineering simulation. Values were calculated on models for the material Nd₂Fe₁₄B. Operational performance might slightly deviate from the simulation results. Treat these data as a reference point when designing systems.

Table 1: Static force (pull vs distance) - interaction chart
MW 70x20 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	3075 Gs 307.5 mT	99.83 kg / 220.09 pounds 99830.0 g / 979.3 N	crushing
1 mm	3013 Gs 301.3 mT	95.80 kg / 211.21 pounds 95804.4 g / 939.8 N	crushing
2 mm	2946 Gs 294.6 mT	91.59 kg / 201.92 pounds 91587.7 g / 898.5 N	crushing
3 mm	2875 Gs 287.5 mT	87.27 kg / 192.39 pounds 87266.0 g / 856.1 N	crushing
5 mm	2727 Gs 272.7 mT	78.48 kg / 173.02 pounds 78482.2 g / 769.9 N	crushing
10 mm	2332 Gs 233.2 mT	57.38 kg / 126.50 pounds 57380.6 g / 562.9 N	crushing
15 mm	1942 Gs 194.2 mT	39.80 kg / 87.73 pounds 39795.7 g / 390.4 N	crushing
20 mm	1590 Gs 159.0 mT	26.68 kg / 58.82 pounds 26680.3 g / 261.7 N	crushing
30 mm	1044 Gs 104.4 mT	11.51 kg / 25.38 pounds 11511.2 g / 112.9 N	crushing
50 mm	466 Gs 46.6 mT	2.29 kg / 5.06 pounds 2294.1 g / 22.5 N	medium risk

Grip strength decreases significantly per each millimeter of gap. Note that even a microscopic distance (e.g., contamination, varnish, rust) strongly reduces the pull force. Magnetic products work most effectively during direct contact; air break drastically cuts the force. See how rapidly the load capacity drop, when the product does not touch directly to the metal substrate. When calculating the assembly, avoid additional spacers.

Table 2: Sliding load (wall)
MW 70x20 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	19.97 kg / 44.02 pounds 19966.0 g / 195.9 N
1 mm	Stal (~0.2)	19.16 kg / 42.24 pounds 19160.0 g / 188.0 N
2 mm	Stal (~0.2)	18.32 kg / 40.38 pounds 18318.0 g / 179.7 N
3 mm	Stal (~0.2)	17.45 kg / 38.48 pounds 17454.0 g / 171.2 N
5 mm	Stal (~0.2)	15.70 kg / 34.60 pounds 15696.0 g / 154.0 N
10 mm	Stal (~0.2)	11.48 kg / 25.30 pounds 11476.0 g / 112.6 N
15 mm	Stal (~0.2)	7.96 kg / 17.55 pounds 7960.0 g / 78.1 N
20 mm	Stal (~0.2)	5.34 kg / 11.76 pounds 5336.0 g / 52.3 N
30 mm	Stal (~0.2)	2.30 kg / 5.08 pounds 2302.0 g / 22.6 N
50 mm	Stal (~0.2)	0.46 kg / 1.01 pounds 458.0 g / 4.5 N

The table below presents the theoretical holding capacity required to cause the downward movement of the magnet vertically on a upright steel wall (considering standard friction). This value is relative to the distance between the magnet and the metal.

Table 3: Wall mounting (shearing) - vertical pull
MW 70x20 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	29.95 kg / 66.03 pounds 29949.0 g / 293.8 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	19.97 kg / 44.02 pounds 19966.0 g / 195.9 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	9.98 kg / 22.01 pounds 9983.0 g / 97.9 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	49.92 kg / 110.04 pounds 49915.0 g / 489.7 N

When hanging a element on a upright plane (e.g., a fridge), it will maintain barely approx. 1/5 of its maximum pull force. Gravitational force as well as a weak degree of grip influence the fact that products slide down faster than they pull off. Planning a hanger? Remember that the sliding force is much weaker than the maximum static pull force. On a painted metal, the element will slide down under a significantly smaller weight. Application of an anti-slip coating can significantly improve the result.

Table 4: Material efficiency (saturation) - power losses
MW 70x20 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	3%	3.33 kg / 7.34 pounds 3327.7 g / 32.6 N
1 mm	8%	8.32 kg / 18.34 pounds 8319.2 g / 81.6 N
2 mm	17%	16.64 kg / 36.68 pounds 16638.3 g / 163.2 N
3 mm	25%	24.96 kg / 55.02 pounds 24957.5 g / 244.8 N
5 mm	42%	41.60 kg / 91.70 pounds 41595.8 g / 408.1 N
10 mm	83%	83.19 kg / 183.41 pounds 83191.7 g / 816.1 N
11 mm	92%	91.51 kg / 201.75 pounds 91510.8 g / 897.7 N
12 mm	100%	99.83 kg / 220.09 pounds 99830.0 g / 979.3 N

A thin metal plate cannot take in the entire magnetic field, which weakens actual performance of the holder. Should you install a neodymium to a thin surface, the magnetism will pass right through and the attraction force will be weaker. To achieve full efficiency of this magnet's power, you require a sufficiently solid piece of steel. The saturation effect causes that on sheet metal structures (e.g., thin profiles), the magnet works worse. We recommend selecting the steel dimension from these parameters.

Table 5: Thermal resistance (material behavior) - power drop
MW 70x20 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	99.83 kg / 220.09 pounds 99830.0 g / 979.3 N	OK
40 °C	-2.2%	97.63 kg / 215.25 pounds 97633.7 g / 957.8 N	OK
60 °C	-4.4%	95.44 kg / 210.40 pounds 95437.5 g / 936.2 N
80 °C	-6.6%	93.24 kg / 205.56 pounds 93241.2 g / 914.7 N
100 °C	-28.8%	71.08 kg / 156.70 pounds 71079.0 g / 697.3 N

Ordinary NdFeB products change their properties strength above the temperature limit. Avoid high temperatures – excessive heat can permanently destroy this magnet. With increasing heat, the magnet's power temporarily drops. Do not use this product close to heaters higher than its working range. Ignoring the limit will lead to permanent loss of magnetic properties.

*Important note: 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. Red status in the table indicates a risk of irreversible loss for this particular item.

Table 6: Magnet-Magnet interaction (attraction) - forces in the system
MW 70x20 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Strength (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	224.41 kg / 494.73 pounds 4 665 Gs	33.66 kg / 74.21 pounds 33661 g / 330.2 N	N/A
1 mm	219.98 kg / 484.97 pounds 6 090 Gs	33.00 kg / 72.74 pounds 32997 g / 323.7 N	197.98 kg / 436.47 pounds ~0 Gs
2 mm	215.36 kg / 474.78 pounds 6 026 Gs	32.30 kg / 71.22 pounds 32304 g / 316.9 N	193.82 kg / 427.31 pounds ~0 Gs
3 mm	210.66 kg / 464.41 pounds 5 959 Gs	31.60 kg / 69.66 pounds 31598 g / 310.0 N	189.59 kg / 417.97 pounds ~0 Gs
5 mm	201.05 kg / 443.23 pounds 5 822 Gs	30.16 kg / 66.48 pounds 30157 g / 295.8 N	180.94 kg / 398.91 pounds ~0 Gs
10 mm	176.42 kg / 388.94 pounds 5 454 Gs	26.46 kg / 58.34 pounds 26463 g / 259.6 N	158.78 kg / 350.05 pounds ~0 Gs
20 mm	128.99 kg / 284.36 pounds 4 663 Gs	19.35 kg / 42.65 pounds 19348 g / 189.8 N	116.09 kg / 255.93 pounds ~0 Gs
50 mm	39.50 kg / 87.08 pounds 2 581 Gs	5.93 kg / 13.06 pounds 5925 g / 58.1 N	35.55 kg / 78.38 pounds ~0 Gs
60 mm	25.88 kg / 57.05 pounds 2 089 Gs	3.88 kg / 8.56 pounds 3881 g / 38.1 N	23.29 kg / 51.34 pounds ~0 Gs
70 mm	17.01 kg / 37.49 pounds 1 693 Gs	2.55 kg / 5.62 pounds 2551 g / 25.0 N	15.31 kg / 33.74 pounds ~0 Gs
80 mm	11.28 kg / 24.86 pounds 1 379 Gs	1.69 kg / 3.73 pounds 1692 g / 16.6 N	10.15 kg / 22.38 pounds ~0 Gs
90 mm	7.57 kg / 16.69 pounds 1 130 Gs	1.14 kg / 2.50 pounds 1136 g / 11.1 N	6.81 kg / 15.02 pounds ~0 Gs
100 mm	5.16 kg / 11.37 pounds 932 Gs	0.77 kg / 1.71 pounds 774 g / 7.6 N	4.64 kg / 10.23 pounds ~0 Gs

Two strong neodymiums attract each other from a wider radius than a magnet and steel setup. The connection of two magnets generates a stronger field and a larger range of action. Designing a strong closure? Apply two magnets instead of one magnet and a striker plate. Exercise caution that when bringing together two magnets, the impact force is extreme. The levitation is a bit weaker than the attraction, but still impressive.
*Flux density between like poles is approximately ~0 Gs at the geometric center between the magnets (caused by magnetic field nullification).
Attention: Calculations apply to shear force of two same neodymium magnets (friction ~0.15 for Ni-Ni coating).

Table 7: Safety (HSE) (implants) - precautionary measures
MW 70x20 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	30.5 cm
Hearing aid	10 Gs (1.0 mT)	24.0 cm
Timepiece	20 Gs (2.0 mT)	18.5 cm
Mobile device	40 Gs (4.0 mT)	14.5 cm
Remote	50 Gs (5.0 mT)	13.5 cm
Payment card	400 Gs (40.0 mT)	5.5 cm
HDD hard drive	600 Gs (60.0 mT)	4.5 cm

Extremely neodym field is a serious hazard to electronic devices and pacemakers. These neodymiums produce a field that destroys function of sensitive medical devices. Notice: the unseen radiation passes through tissues and plastic. Increased vigilance must be taken by people with cochlear implants and insulin pumps. The risk also applies to: automatic timepieces, car keys, membranes, and screens. Do not bring the product near payment cards, HDD media, or sensitive navigation tools.

Table 8: Impact energy (cracking risk) - warning
MW 70x20 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	17.39 km/h (4.83 m/s)	6.73 J
30 mm	24.57 km/h (6.83 m/s)	13.45 J
50 mm	30.08 km/h (8.36 m/s)	20.15 J
100 mm	41.97 km/h (11.66 m/s)	39.23 J

Neodymium magnets are delicate – a strong collision with metal causes immediate chipping. Pay attention to connection velocity – a neodymium left loose becomes dangerous. Kinetic force can trigger coating fragments or painful pinches 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 almost guarantees destruction of the magnet. Use safety goggles when playing with large magnets.

Table 9: Anti-corrosion coating durability
MW 70x20 / N38

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

The SST (salt spray test) is an industry standard for determining coating lifespan in harsh conditions. Note the thickness of the protective layer.

Table 10: Electrical data (P_c)
MW 70x20 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	128 363 Mx	1283.6 µWb
P_c Coefficient	0.39	Low (Flat)

Total magnetic flux emitted by the magnet pole. Key data in coil applications as well as sensors. The P_c coefficient defines the magnet's operating point.

Table 11: Physics of underwater searching
MW 70x20 / N38

Environment	Effective steel pull	Effect
Air (land)	99.83 kg	Standard
Water (riverbed)	114.31 kg (+14.48 kg buoyancy gain)	+14.5%

Corrosion warning: This magnet has a standard nickel coating. After use in water, it must be dried and maintained immediately, otherwise it will rust!

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

1. Shear force

*Note: On a vertical surface, the magnet retains just approx. 20-30% of its perpendicular strength.

2. Steel saturation

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

3. Power loss vs temp

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

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 0.39

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%

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: 010095-2026

Quick Unit Converter

Force (pull)

Force (N)

Pounds (lbs)

Magnetic Induction

Induction (Gs)

Induction (T)

Input data in one of the inputs, to see the remaining units will convert automatically.

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The offered product is a very strong cylinder magnet, composed of modern NdFeB material, which, at dimensions of Ø70x20 mm, guarantees the highest energy density. The MW 70x20 / N38 model features an accuracy of ±0.1mm and professional build quality, making it a perfect solution for professional engineers and designers. As a cylindrical magnet with impressive force (approx. 99.83 kg), this product is in stock from our European logistics center, ensuring rapid order fulfillment. Moreover, its Ni-Cu-Ni coating effectively protects it against corrosion in standard operating conditions, guaranteeing an aesthetic appearance and durability for years.

It finds application in DIY projects, advanced automation, and broadly understood industry, serving as a fastening or actuating element. Thanks to the high power of 979.31 N with a weight of only 577.27 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., 70.1 mm) using epoxy glues. To ensure long-term durability in automation, specialized industrial adhesives are used, which do not react with the nickel coating and fill the gap, guaranteeing high repeatability of the connection.

Grade N38 is the most frequently chosen standard for industrial neodymium magnets, offering a great economic balance and operational stability. If you need the strongest magnets in the same volume (Ø70x20), 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 Ø70x20 mm, which, at a weight of 577.27 g, makes it an element with high magnetic energy density. The value of 979.31 N means that the magnet is capable of holding a weight many times exceeding its own mass of 577.27 g. The product has a [NiCuNi] coating, which secures it against external factors, giving it an aesthetic, silvery shine.

This cylinder is magnetized axially (along the height of 20 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.

Advantages as well as disadvantages of neodymium magnets.

Benefits

Besides their tremendous strength, neodymium magnets offer the following advantages:

Their strength is maintained, and after approximately 10 years it decreases only by ~1% (according to research),
Neodymium magnets are distinguished by extremely resistant to magnetic field loss caused by external field sources,
The use of an shiny layer of noble metals (nickel, gold, silver) causes the element to present itself better,
Magnets possess huge magnetic induction on the outer side,
Due to their durability and thermal resistance, neodymium magnets can operate (depending on the shape) even at high temperatures reaching 230°C or more...
Thanks to modularity in shaping and the capacity to modify to client solutions,
Fundamental importance in innovative solutions – they serve a role in magnetic memories, electric drive systems, diagnostic systems, also modern systems.
Compactness – despite small sizes they generate large force, making them ideal for precision applications

Disadvantages

Disadvantages of neodymium magnets:

They are fragile upon too strong impacts. To avoid cracks, it is worth protecting magnets in special housings. Such protection not only protects the magnet but also improves its resistance to damage
When exposed to high temperature, neodymium magnets experience a drop in force. Often, when the temperature exceeds 80°C, their power decreases (depending on the size, as well as shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
They oxidize in a humid environment. For use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
We suggest a housing - magnetic holder, due to difficulties in producing nuts inside the magnet and complicated shapes.
Potential hazard to health – tiny shards of magnets pose a threat, in case of ingestion, which becomes key in the context of child health protection. Additionally, small components of these products are able to be problematic in diagnostics medical in case of swallowing.
With large orders the cost of neodymium magnets can be a barrier,

Lifting parameters

Optimal lifting capacity of a neodymium magnet – what contributes to it?

The load parameter shown refers to the peak performance, obtained under laboratory conditions, namely:

with the use of a sheet made of low-carbon steel, guaranteeing full magnetic saturation
whose transverse dimension is min. 10 mm
characterized by even structure
without the slightest insulating layer between the magnet and steel
during detachment in a direction perpendicular to the plane
in temp. approx. 20°C

Determinants of practical lifting force of a magnet

In practice, the actual holding force is determined by several key aspects, ranked from crucial:

Space between magnet and steel – even a fraction of a millimeter of distance (caused e.g. by varnish or unevenness) drastically reduces the pulling force, often by half at just 0.5 mm.
Force direction – declared lifting capacity refers to detachment vertically. When applying parallel force, the magnet exhibits significantly lower power (often approx. 20-30% of nominal force).
Steel thickness – insufficiently thick sheet does not close the flux, causing part of the flux to be lost into the air.
Chemical composition of the base – mild steel attracts best. Alloy steels lower magnetic permeability and lifting capacity.
Surface quality – the more even the plate, the larger the contact zone and higher the lifting capacity. Roughness creates an air distance.
Thermal environment – temperature increase causes a temporary drop of induction. 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, however under shearing force the load capacity is reduced by as much as 5 times. Additionally, even a slight gap between the magnet’s surface and the plate lowers the load capacity.

H&S for magnets

Warning for heart patients

Life threat: Strong magnets can deactivate heart devices and defibrillators. Stay away if you have medical devices.

Electronic devices

Avoid bringing magnets close to a purse, computer, or screen. The magnetism can destroy these devices and erase data from cards.

Do not overheat magnets

Monitor thermal conditions. Exposing the magnet above 80 degrees Celsius will ruin its magnetic structure and pulling force.

Warning for allergy sufferers

Warning for allergy sufferers: The Ni-Cu-Ni coating contains nickel. If skin irritation occurs, cease working with magnets and wear gloves.

Physical harm

Large magnets can break fingers instantly. Under no circumstances place your hand betwixt two strong magnets.

Dust explosion hazard

Fire warning: Neodymium dust is highly flammable. Do not process magnets in home conditions as this may cause fire.

Keep away from children

Adult use only. Small elements can be swallowed, leading to intestinal necrosis. Keep out of reach of children and animals.

Protective goggles

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

Powerful field

Handle magnets with awareness. Their huge power can shock even experienced users. Plan your moves and do not underestimate their force.

Precision electronics

A powerful magnetic field interferes with the operation of compasses in phones and GPS navigation. Keep magnets close to a device to prevent damaging the sensors.

Caution! More info about hazards in the article: Safety of working with magnets.

MW 70x20 / N38 - cylindrical magnet

Physical properties - MW 70x20 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Technical analysis of the magnet - report

Table 1: Static force (pull vs distance) - interaction chart MW 70x20 / N38

Table 2: Sliding load (wall) MW 70x20 / N38

Table 3: Wall mounting (shearing) - vertical pull MW 70x20 / N38

Table 4: Material efficiency (saturation) - power losses MW 70x20 / N38

Table 5: Thermal resistance (material behavior) - power drop MW 70x20 / N38

Table 6: Magnet-Magnet interaction (attraction) - forces in the system MW 70x20 / N38

Table 7: Safety (HSE) (implants) - precautionary measures MW 70x20 / N38

Table 8: Impact energy (cracking risk) - warning MW 70x20 / N38

Table 9: Anti-corrosion coating durability MW 70x20 / N38

Table 10: Electrical data (Pc) MW 70x20 / N38

Table 11: Physics of underwater searching MW 70x20 / N38

1. Shear force

2. Steel saturation

3. Power loss vs temp

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

Elemental analysis

Sustainability

Force (pull)

Magnetic Induction

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Advantages as well as disadvantages of neodymium magnets.

Benefits

Disadvantages

Lifting parameters

Optimal lifting capacity of a neodymium magnet – what contributes to it?

Determinants of practical lifting force of a magnet

H&S for magnets

Warning for heart patients

Electronic devices

Do not overheat magnets

Warning for allergy sufferers

Physical harm

Dust explosion hazard

Keep away from children

Protective goggles

Powerful field

Precision electronics

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (pull vs distance) - interaction chart
MW 70x20 / N38

Table 2: Sliding load (wall)
MW 70x20 / N38

Table 3: Wall mounting (shearing) - vertical pull
MW 70x20 / N38

Table 4: Material efficiency (saturation) - power losses
MW 70x20 / N38

Table 5: Thermal resistance (material behavior) - power drop
MW 70x20 / N38

Table 6: Magnet-Magnet interaction (attraction) - forces in the system
MW 70x20 / N38

Table 7: Safety (HSE) (implants) - precautionary measures
MW 70x20 / N38

Table 8: Impact energy (cracking risk) - warning
MW 70x20 / N38

Table 9: Anti-corrosion coating durability
MW 70x20 / N38

Table 10: Electrical data (P_c)
MW 70x20 / N38

Table 11: Physics of underwater searching
MW 70x20 / N38