Product available Ships today (order by 14:00)

MW 70x40 / 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 010097

GTIN/EAN: 5906301810964

5.00

Diameter Ø

70 mm [±0,1 mm]

Height

40 mm [±0,1 mm]

Weight

1154.54 g

Magnetization Direction

↑ axial

Load capacity

164.24 kg / 1611.16 N

Magnetic Induction

466.52 mT / 4665 Gs

Coating

[NiCuNi] Nickel

technical details »

395.40 ZŁ with VAT / pcs + price for transport

321.46 ZŁ net + 23% VAT / pcs

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Parameters and structure of neodymium magnets can be checked on our magnetic mass calculator.

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Physical properties - MW 70x40 / N38 - cylindrical magnet

Specification / characteristics - MW 70x40 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010097
GTIN/EAN	5906301810964
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	40 mm [±0,1 mm]
Weight	1154.54 g
Magnetization Direction	↑ axial
Load capacity ~ ?	164.24 kg / 1611.16 N
Magnetic Induction ~ ?	466.52 mT / 4665 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 70x40 / 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

Physical modeling of the product - data

The following values constitute the outcome of a mathematical simulation. Results were calculated on models for the material Nd₂Fe₁₄B. Operational performance might slightly deviate from the simulation results. Please consider these calculations as a preliminary roadmap during assembly planning.

Table 1: Static force (force vs distance) - characteristics
MW 70x40 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	4665 Gs 466.5 mT	164.24 kg / 362.09 pounds 164240.0 g / 1611.2 N	crushing
1 mm	4538 Gs 453.8 mT	155.47 kg / 342.75 pounds 155467.9 g / 1525.1 N	crushing
2 mm	4409 Gs 440.9 mT	146.74 kg / 323.52 pounds 146744.5 g / 1439.6 N	crushing
3 mm	4279 Gs 427.9 mT	138.20 kg / 304.68 pounds 138201.8 g / 1355.8 N	crushing
5 mm	4017 Gs 401.7 mT	121.81 kg / 268.54 pounds 121806.5 g / 1194.9 N	crushing
10 mm	3376 Gs 337.6 mT	86.03 kg / 189.65 pounds 86025.3 g / 843.9 N	crushing
15 mm	2788 Gs 278.8 mT	58.69 kg / 129.38 pounds 58686.8 g / 575.7 N	crushing
20 mm	2279 Gs 227.9 mT	39.22 kg / 86.46 pounds 39215.6 g / 384.7 N	crushing
30 mm	1511 Gs 151.1 mT	17.22 kg / 37.97 pounds 17222.5 g / 169.0 N	crushing
50 mm	699 Gs 69.9 mT	3.69 kg / 8.13 pounds 3690.0 g / 36.2 N	medium risk

Grip strength decreases sharply with every mm of distance. Keep in mind that even a microscopic distance (e.g., contamination, paint, dust) significantly reduces the pull force. Magnets hold optimally during direct contact; air break kills the force. See how quickly the pull force drop, when the product does not adhere directly to the steel surface. When planning the assembly, avoid unnecessary gaps.

Table 2: Shear hold (vertical surface)
MW 70x40 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	32.85 kg / 72.42 pounds 32848.0 g / 322.2 N
1 mm	Stal (~0.2)	31.09 kg / 68.55 pounds 31094.0 g / 305.0 N
2 mm	Stal (~0.2)	29.35 kg / 64.70 pounds 29348.0 g / 287.9 N
3 mm	Stal (~0.2)	27.64 kg / 60.94 pounds 27640.0 g / 271.1 N
5 mm	Stal (~0.2)	24.36 kg / 53.71 pounds 24362.0 g / 239.0 N
10 mm	Stal (~0.2)	17.21 kg / 37.93 pounds 17206.0 g / 168.8 N
15 mm	Stal (~0.2)	11.74 kg / 25.88 pounds 11738.0 g / 115.1 N
20 mm	Stal (~0.2)	7.84 kg / 17.29 pounds 7844.0 g / 76.9 N
30 mm	Stal (~0.2)	3.44 kg / 7.59 pounds 3444.0 g / 33.8 N
50 mm	Stal (~0.2)	0.74 kg / 1.63 pounds 738.0 g / 7.2 N

The following data defines the approximate force sufficient to cause the sliding of the magnet vertically against a upright steel plate (assuming standard friction coefficient). The holding force depends on the air gap between the magnet and the surface.

Table 3: Wall mounting (shearing) - behavior on slippery surfaces
MW 70x40 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	49.27 kg / 108.63 pounds 49272.0 g / 483.4 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	32.85 kg / 72.42 pounds 32848.0 g / 322.2 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	16.42 kg / 36.21 pounds 16424.0 g / 161.1 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	82.12 kg / 181.04 pounds 82120.0 g / 805.6 N

When mounting a holder on a upright wall (e.g., a fridge), it you can count on barely about 1/5 of nominal attraction strength. Gravity as well as a weak degree of grip cause that products slip easier than they detach. Want to create a hanger? Consider that the sliding force is noticeably lower than the maximum static pull force. On a painted metal, the element will slide down under a much lighter load. Utilizing a rubberized coating can effectively raise the stability.

Table 4: Material efficiency (substrate influence) - sheet metal selection
MW 70x40 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	3%	5.47 kg / 12.07 pounds 5474.7 g / 53.7 N
1 mm	8%	13.69 kg / 30.17 pounds 13686.7 g / 134.3 N
2 mm	17%	27.37 kg / 60.35 pounds 27373.3 g / 268.5 N
3 mm	25%	41.06 kg / 90.52 pounds 41060.0 g / 402.8 N
5 mm	42%	68.43 kg / 150.87 pounds 68433.3 g / 671.3 N
10 mm	83%	136.87 kg / 301.74 pounds 136866.7 g / 1342.7 N
11 mm	92%	150.55 kg / 331.91 pounds 150553.3 g / 1476.9 N
12 mm	100%	164.24 kg / 362.09 pounds 164240.0 g / 1611.2 N

A thin metal plate is not enough to absorb the entire magnetic field, which weakens actual performance of the magnet. Should you attach a powerful product to a too thin substrate, the flux will penetrate right through and the holding will be smaller. To achieve full efficiency of this neodymium's potential, you need a suitably thick piece of metal. The material oversaturation means that on delicate walls (e.g., car bodies), the magnet works worse. We recommend selecting the steel thickness based on the following data.

Table 5: Thermal stability (material behavior) - thermal limit
MW 70x40 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	164.24 kg / 362.09 pounds 164240.0 g / 1611.2 N	OK
40 °C	-2.2%	160.63 kg / 354.12 pounds 160626.7 g / 1575.7 N	OK
60 °C	-4.4%	157.01 kg / 346.15 pounds 157013.4 g / 1540.3 N	OK
80 °C	-6.6%	153.40 kg / 338.19 pounds 153400.2 g / 1504.9 N
100 °C	-28.8%	116.94 kg / 257.81 pounds 116938.9 g / 1147.2 N

Ordinary NdFeB products change their properties power after exceeding the maximum temperature. Watch out for overheating – excessive heat can permanently damage this magnet. With increasing heat, the magnet's force momentarily lowers. Refrain from using this product close to ovens higher than its safe range. Ignoring the limit will lead to permanent loss of magnetism.

*Important note: Temperature resistance depends not only on the material grade, but also on the magnet's shape. Flat magnets (low Pc) are more susceptible to demagnetization sooner compared to rod magnets. The danger warning in the table signals permanent field degradation for this particular item.

Table 6: Two magnets (attraction) - forces in the system
MW 70x40 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Sliding Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	516.26 kg / 1138.16 pounds 5 679 Gs	77.44 kg / 170.72 pounds 77439 g / 759.7 N	N/A
1 mm	502.57 kg / 1107.98 pounds 9 205 Gs	75.39 kg / 166.20 pounds 75385 g / 739.5 N	452.31 kg / 997.18 pounds ~0 Gs
2 mm	488.69 kg / 1077.37 pounds 9 077 Gs	73.30 kg / 161.61 pounds 73303 g / 719.1 N	439.82 kg / 969.63 pounds ~0 Gs
3 mm	474.91 kg / 1047.01 pounds 8 948 Gs	71.24 kg / 157.05 pounds 71237 g / 698.8 N	427.42 kg / 942.31 pounds ~0 Gs
5 mm	447.76 kg / 987.15 pounds 8 688 Gs	67.16 kg / 148.07 pounds 67164 g / 658.9 N	402.99 kg / 888.43 pounds ~0 Gs
10 mm	382.88 kg / 844.10 pounds 8 034 Gs	57.43 kg / 126.62 pounds 57432 g / 563.4 N	344.59 kg / 759.69 pounds ~0 Gs
20 mm	270.41 kg / 596.14 pounds 6 752 Gs	40.56 kg / 89.42 pounds 40561 g / 397.9 N	243.37 kg / 536.53 pounds ~0 Gs
50 mm	81.66 kg / 180.03 pounds 3 710 Gs	12.25 kg / 27.01 pounds 12249 g / 120.2 N	73.50 kg / 162.03 pounds ~0 Gs
60 mm	54.14 kg / 119.35 pounds 3 021 Gs	8.12 kg / 17.90 pounds 8120 g / 79.7 N	48.72 kg / 107.41 pounds ~0 Gs
70 mm	36.14 kg / 79.69 pounds 2 469 Gs	5.42 kg / 11.95 pounds 5422 g / 53.2 N	32.53 kg / 71.72 pounds ~0 Gs
80 mm	24.40 kg / 53.80 pounds 2 028 Gs	3.66 kg / 8.07 pounds 3661 g / 35.9 N	21.96 kg / 48.42 pounds ~0 Gs
90 mm	16.70 kg / 36.82 pounds 1 678 Gs	2.51 kg / 5.52 pounds 2505 g / 24.6 N	15.03 kg / 33.14 pounds ~0 Gs
100 mm	11.60 kg / 25.57 pounds 1 398 Gs	1.74 kg / 3.84 pounds 1740 g / 17.1 N	10.44 kg / 23.01 pounds ~0 Gs

Two magnetic products interact from a wider radius than a magnet and sheet setup. Such a system of two magnets creates a more powerful interaction and a further horizon of operation. Designing a powerful holder? Apply two magnets 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 a bit weaker than the attraction, but still large.
*Field value in repulsion mode drops to ~0 Gs at the geometric center of the gap (caused by magnetic field nullification).
Important: Estimates refer to shear force of dual matching neodymium magnets (friction ~0.15 for Ni-Ni plating).

Table 7: Hazards (implants) - precautionary measures
MW 70x40 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	37.5 cm
Hearing aid	10 Gs (1.0 mT)	29.5 cm
Mechanical watch	20 Gs (2.0 mT)	23.0 cm
Mobile device	40 Gs (4.0 mT)	17.5 cm
Remote	50 Gs (5.0 mT)	16.5 cm
Payment card	400 Gs (40.0 mT)	7.0 cm
HDD hard drive	600 Gs (60.0 mT)	5.5 cm

Powerful magnet radiation is a large risk to electronics as well as pacemakers. These NdFeB products produce a field that prevents correct functioning of digital equipment. Notice: the invisible magnetic field penetrates the body and plastic. Special caution must be taken by people with cochlear implants and insulin pumps. Also at risk are: mechanical watches, remotes, membranes, and screens. Do not place the magnet near cards, hard drives, or precise measuring instruments.

Table 8: Impact energy (cracking risk) - collision effects
MW 70x40 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	15.47 km/h (4.30 m/s)	10.66 J
30 mm	22.16 km/h (6.15 m/s)	21.87 J
50 mm	27.27 km/h (7.58 m/s)	33.13 J
100 mm	38.07 km/h (10.57 m/s)	64.55 J

Magnetic elements are prone to chipping – a collision with steel risks their cracking. Pay attention to connection velocity – a magnet released freely speeds with massive force. Impact energy can destroy the magnet or painful pinches to fingers. Always hold the magnet during installation so it doesn't slam with momentum against the metal. A collision at high speed almost guarantees destruction of the magnet. Wear safety glasses when playing with powerful specimens.

Table 9: Coating parameters (durability)
MW 70x40 / 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 70x40 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	180 982 Mx	1809.8 µWb
P_c Coefficient	0.64	High (Stable)

Total magnetic flux emitted by the magnet pole. Key data when building generators and motors. P_c value defines the working geometry.

Table 11: Physics of underwater searching
MW 70x40 / N38

Environment	Effective steel pull	Effect
Air (land)	164.24 kg	Standard
Water (riverbed)	188.05 kg (+23.81 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!

Contrary to myths, water does not block the magnetic field. However, remember the water resistance when pulling the rope quickly.

1. Sliding resistance

*Note: On a vertical wall, the magnet holds merely a fraction of its perpendicular strength.

2. Steel saturation

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

3. Power loss vs temp

*For standard magnets, the safety limit is 80°C.

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 0.64

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: 010097-2026

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MW 5x15 / N38 - cylindrical magnet

1.107 ZŁ brutto / pcs

The presented product is a very strong cylinder magnet, composed of durable NdFeB material, which, with dimensions of Ø70x40 mm, guarantees maximum efficiency. This specific item boasts an accuracy of ±0.1mm and industrial build quality, making it an ideal solution for the most demanding engineers and designers. As a magnetic rod with significant force (approx. 164.24 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 typical operating conditions, guaranteeing an aesthetic appearance and durability for years.

This model is ideal for building electric motors, advanced sensors, and efficient filters, where maximum induction on a small surface counts. Thanks to the high power of 1611.16 N with a weight of only 1154.54 g, this rod is indispensable in electronics and wherever low weight is crucial.

Due to the delicate structure of the ceramic sinter, you must not use force-fitting (so-called press-fit), as this risks chipping the coating of this precision component. To ensure stability in industry, specialized industrial adhesives are used, which do not react with the nickel coating and fill the gap, guaranteeing durability of the connection.

Magnets NdFeB grade N38 are strong enough 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 (Ø70x40), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard available off-the-shelf in our store.

This model is characterized by dimensions Ø70x40 mm, which, at a weight of 1154.54 g, makes it an element with impressive magnetic energy density. The value of 1611.16 N means that the magnet is capable of holding a weight many times exceeding its own mass of 1154.54 g. The product has a [NiCuNi] coating, which secures it 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 70 mm. Thanks to this, the magnet can be easily glued into a hole and achieve a strong field on the front surface. On request, we can also produce versions magnetized diametrically if your project requires it.

Strengths and weaknesses of Nd₂Fe₁₄B magnets.

Advantages

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

They have constant strength, and over around ten years their performance decreases symbolically – ~1% (in testing),
They are extremely resistant to demagnetization induced by external disturbances,
The use of an elegant layer of noble metals (nickel, gold, silver) causes the element to present itself better,
They are known for high magnetic induction at the operating surface, which improves attraction properties,
Through (appropriate) combination of ingredients, they can achieve high thermal resistance, enabling action at temperatures approaching 230°C and above...
Possibility of custom creating as well as optimizing to complex requirements,
Significant place in innovative solutions – they are used in magnetic memories, drive modules, precision medical tools, as well as industrial machines.
Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications

Disadvantages

Problematic aspects of neodymium magnets and proposals for their use:

They are fragile upon heavy impacts. To avoid cracks, it is worth securing magnets using a steel holder. Such protection not only protects the magnet but also improves its resistance to damage
When exposed to high temperature, neodymium magnets suffer a drop in power. Often, when the temperature exceeds 80°C, their strength decreases (depending on the size and shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
Magnets exposed to a humid environment can corrode. Therefore when using outdoors, we recommend using water-impermeable magnets made of rubber, plastic or other material resistant to moisture
Due to limitations in producing threads and complicated forms in magnets, we propose using casing - magnetic mechanism.
Health risk related to microscopic parts of magnets pose a threat, in case of ingestion, which gains importance in the context of child health protection. It is also worth noting that tiny parts of these products 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

Maximum lifting force for a neodymium magnet – what it depends on?

Magnet power was determined for optimal configuration, including:

on a block made of structural steel, perfectly concentrating the magnetic flux
with a thickness of at least 10 mm
with a plane perfectly flat
with zero gap (no paint)
under perpendicular application of breakaway force (90-degree angle)
at temperature room level

Determinants of lifting force in real conditions

It is worth knowing that the magnet holding may be lower influenced by elements below, starting with the most relevant:

Gap (betwixt the magnet and the plate), as even a microscopic distance (e.g. 0.5 mm) leads to a reduction in force by up to 50% (this also applies to varnish, corrosion or debris).
Pull-off angle – note that the magnet has greatest strength perpendicularly. Under shear forces, the holding force drops significantly, often to levels of 20-30% of the maximum value.
Wall thickness – the thinner the sheet, the weaker the hold. Magnetic flux passes through the material instead of generating force.
Steel type – mild steel gives the best results. Higher carbon content lower magnetic permeability and lifting capacity.
Base smoothness – the smoother and more polished the surface, the better the adhesion and stronger the hold. Roughness creates an air distance.
Thermal factor – high temperature reduces pulling force. Exceeding the limit temperature can permanently damage the magnet.

Holding force was checked on a smooth steel plate of 20 mm thickness, when a perpendicular force was applied, in contrast under parallel forces the holding force is lower. Moreover, even a small distance between the magnet and the plate decreases the lifting capacity.

Precautions when working with NdFeB magnets

Precision electronics

Navigation devices and smartphones are highly sensitive to magnetism. Direct contact with a strong magnet can ruin the internal compass in your phone.

Maximum temperature

Watch the temperature. Heating the magnet above 80 degrees Celsius will destroy its properties and pulling force.

Avoid contact if allergic

Nickel alert: The nickel-copper-nickel coating consists of nickel. If an allergic reaction occurs, cease handling magnets and use protective gear.

Pinching danger

Watch your fingers. Two powerful magnets will snap together immediately with a force of several hundred kilograms, crushing everything in their path. Exercise extreme caution!

Dust is flammable

Fire hazard: Neodymium dust is explosive. Do not process magnets without safety gear as this risks ignition.

Magnets are brittle

Beware of splinters. Magnets can explode upon violent connection, launching shards into the air. Wear goggles.

Protect data

Do not bring magnets close to a wallet, laptop, or TV. The magnetic field can irreversibly ruin these devices and wipe information from cards.

Implant safety

Life threat: Strong magnets can turn off heart devices and defibrillators. Stay away if you have electronic implants.

No play value

Product intended for adults. Small elements pose a choking risk, causing severe trauma. Keep out of reach of kids and pets.

Conscious usage

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

Caution! Looking for details? Check our post: Why are neodymium magnets dangerous?

MW 70x40 / N38 - cylindrical magnet

Physical properties - MW 70x40 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical modeling of the product - data

Table 1: Static force (force vs distance) - characteristics MW 70x40 / N38

Table 2: Shear hold (vertical surface) MW 70x40 / N38

Table 3: Wall mounting (shearing) - behavior on slippery surfaces MW 70x40 / N38

Table 4: Material efficiency (substrate influence) - sheet metal selection MW 70x40 / N38

Table 5: Thermal stability (material behavior) - thermal limit MW 70x40 / N38

Table 6: Two magnets (attraction) - forces in the system MW 70x40 / N38

Table 7: Hazards (implants) - precautionary measures MW 70x40 / N38

Table 8: Impact energy (cracking risk) - collision effects MW 70x40 / N38

Table 9: Coating parameters (durability) MW 70x40 / N38

Table 10: Electrical data (Pc) MW 70x40 / N38

Table 11: Physics of underwater searching MW 70x40 / N38

1. Sliding resistance

2. Steel saturation

3. Power loss vs temp

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

Elemental analysis

Sustainability

Pulling force

Field Strength

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MW 5x15 / N38 - cylindrical magnet

Strengths and weaknesses of Nd2Fe14B magnets.

Advantages

Disadvantages

Holding force characteristics

Maximum lifting force for a neodymium magnet – what it depends on?

Determinants of lifting force in real conditions

Precautions when working with NdFeB magnets

Precision electronics

Maximum temperature

Avoid contact if allergic

Pinching danger

Dust is flammable

Magnets are brittle

Protect data

Implant safety

No play value

Conscious usage

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (force vs distance) - characteristics
MW 70x40 / N38

Table 2: Shear hold (vertical surface)
MW 70x40 / N38

Table 3: Wall mounting (shearing) - behavior on slippery surfaces
MW 70x40 / N38

Table 4: Material efficiency (substrate influence) - sheet metal selection
MW 70x40 / N38

Table 5: Thermal stability (material behavior) - thermal limit
MW 70x40 / N38

Table 6: Two magnets (attraction) - forces in the system
MW 70x40 / N38

Table 7: Hazards (implants) - precautionary measures
MW 70x40 / N38

Table 8: Impact energy (cracking risk) - collision effects
MW 70x40 / N38

Table 9: Coating parameters (durability)
MW 70x40 / N38

Table 10: Electrical data (P_c)
MW 70x40 / N38

Table 11: Physics of underwater searching
MW 70x40 / N38

Strengths and weaknesses of Nd₂Fe₁₄B magnets.