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MW 70x30 / 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 010096

GTIN/EAN: 5906301810957

5.00

Diameter Ø

70 mm [±0,1 mm]

Height

30 mm [±0,1 mm]

Weight

865.9 g

Magnetization Direction

↑ axial

Load capacity

144.18 kg / 1414.37 N

Magnetic Induction

403.43 mT / 4034 Gs

Coating

[NiCuNi] Nickel

technical details »

317.17 ZŁ with VAT / pcs + price for transport

257.86 ZŁ net + 23% VAT / pcs

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Technical parameters of the product - MW 70x30 / N38 - cylindrical magnet

Specification / characteristics - MW 70x30 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010096
GTIN/EAN	5906301810957
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	30 mm [±0,1 mm]
Weight	865.9 g
Magnetization Direction	↑ axial
Load capacity ~ ?	144.18 kg / 1414.37 N
Magnetic Induction ~ ?	403.43 mT / 4034 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 70x30 / 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 analysis of the product - data

Presented data are the direct effect of a engineering simulation. Results are based on algorithms for the material Nd₂Fe₁₄B. Real-world performance may deviate from the simulation results. Treat these calculations as a reference point for designers.

Table 1: Static force (pull vs distance) - power drop
MW 70x30 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	4034 Gs 403.4 mT	144.18 kg / 317.86 pounds 144180.0 g / 1414.4 N	dangerous!
1 mm	3934 Gs 393.4 mT	137.11 kg / 302.27 pounds 137108.9 g / 1345.0 N	dangerous!
2 mm	3830 Gs 383.0 mT	129.96 kg / 286.52 pounds 129962.6 g / 1274.9 N	dangerous!
3 mm	3724 Gs 372.4 mT	122.86 kg / 270.87 pounds 122863.7 g / 1205.3 N	dangerous!
5 mm	3507 Gs 350.7 mT	108.99 kg / 240.28 pounds 108989.8 g / 1069.2 N	dangerous!
10 mm	2963 Gs 296.3 mT	77.77 kg / 171.46 pounds 77773.1 g / 763.0 N	dangerous!
15 mm	2452 Gs 245.2 mT	53.26 kg / 117.41 pounds 53257.6 g / 522.5 N	dangerous!
20 mm	2003 Gs 200.3 mT	35.55 kg / 78.38 pounds 35554.2 g / 348.8 N	dangerous!
30 mm	1321 Gs 132.1 mT	15.45 kg / 34.06 pounds 15450.6 g / 151.6 N	dangerous!
50 mm	601 Gs 60.1 mT	3.20 kg / 7.05 pounds 3199.7 g / 31.4 N	warning

Pulling power weakens sharply with every subsequent millimeter of spacing. Remember that even the smallest gap (e.g., contamination, varnish, rust) significantly diminishes the holding power. Magnetic products operate most effectively at the point of direct contact; distance kills the force. Observe how quickly the pull force drop, when the magnet does not touch flatly to the metal substrate. When designing the mounting, avoid additional spacers.

Table 2: Sliding load (wall)
MW 70x30 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	28.84 kg / 63.57 pounds 28836.0 g / 282.9 N
1 mm	Stal (~0.2)	27.42 kg / 60.46 pounds 27422.0 g / 269.0 N
2 mm	Stal (~0.2)	25.99 kg / 57.30 pounds 25992.0 g / 255.0 N
3 mm	Stal (~0.2)	24.57 kg / 54.17 pounds 24572.0 g / 241.1 N
5 mm	Stal (~0.2)	21.80 kg / 48.06 pounds 21798.0 g / 213.8 N
10 mm	Stal (~0.2)	15.55 kg / 34.29 pounds 15554.0 g / 152.6 N
15 mm	Stal (~0.2)	10.65 kg / 23.48 pounds 10652.0 g / 104.5 N
20 mm	Stal (~0.2)	7.11 kg / 15.67 pounds 7110.0 g / 69.7 N
30 mm	Stal (~0.2)	3.09 kg / 6.81 pounds 3090.0 g / 30.3 N
50 mm	Stal (~0.2)	0.64 kg / 1.41 pounds 640.0 g / 6.3 N

This section indicates the estimated shear load required to initiate the downward movement of the magnet downwards along a vertical steel plate (considering typical friction). The holding force is a function of the air gap between the magnet and the surface.

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces
MW 70x30 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	43.25 kg / 95.36 pounds 43254.0 g / 424.3 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	28.84 kg / 63.57 pounds 28836.0 g / 282.9 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	14.42 kg / 31.79 pounds 14418.0 g / 141.4 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	72.09 kg / 158.93 pounds 72090.0 g / 707.2 N

When hanging a magnet on a upright wall (e.g., a board), it will only hold just approx. 20%-30% of its maximum pull force. Gravity as well as a weak degree of grip mean that products move down faster than they detach. Planning a vertical fastening? Remember that the sliding force is noticeably lower than the maximum static pull force. On a slippery surface, the magnet will slip down under a noticeably lighter load. Utilizing a rubberized pad can significantly increase the grip.

Table 4: Steel thickness (saturation) - power losses
MW 70x30 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	3%	4.81 kg / 10.60 pounds 4806.0 g / 47.1 N
1 mm	8%	12.01 kg / 26.49 pounds 12015.0 g / 117.9 N
2 mm	17%	24.03 kg / 52.98 pounds 24030.0 g / 235.7 N
3 mm	25%	36.05 kg / 79.47 pounds 36045.0 g / 353.6 N
5 mm	42%	60.08 kg / 132.44 pounds 60075.0 g / 589.3 N
10 mm	83%	120.15 kg / 264.89 pounds 120150.0 g / 1178.7 N
11 mm	92%	132.17 kg / 291.37 pounds 132165.0 g / 1296.5 N
12 mm	100%	144.18 kg / 317.86 pounds 144180.0 g / 1414.4 N

A thin metal plate cannot absorb the entire magnetic field, which weakens actual performance of the holder. Should you attach a powerful product to a too thin substrate, the magnetism will pass right through and the attraction force will be weaker. To achieve the maximum of this neodymium's potential, you require a sufficiently solid backing of steel. The material oversaturation causes that on sheet metal structures (e.g., appliance housings), the product holds weaker. We recommend selecting the steel dimension from these parameters.

Table 5: Thermal resistance (stability) - thermal limit
MW 70x30 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	144.18 kg / 317.86 pounds 144180.0 g / 1414.4 N	OK
40 °C	-2.2%	141.01 kg / 310.87 pounds 141008.0 g / 1383.3 N	OK
60 °C	-4.4%	137.84 kg / 303.88 pounds 137836.1 g / 1352.2 N
80 °C	-6.6%	134.66 kg / 296.88 pounds 134664.1 g / 1321.1 N
100 °C	-28.8%	102.66 kg / 226.32 pounds 102656.2 g / 1007.1 N

Ordinary NdFeB products irreversibly lose strength after exceeding the maximum temperature. Protect against heat – heat can irreversibly damage this magnet. With every degree above norm, the magnet's force briefly drops. Avoid using this magnet close to ovens higher than its operating temperature limit. Too high temperature will result in permanent loss of magnetism.

*Important note: Thermal stability is determined by both grade, but also on the magnet's shape. Thin magnets (low permeance coefficient) are more susceptible to demagnetization sooner compared to rod magnets. Warning indicator in the table signals permanent field degradation for this specific geometry.

Table 6: Two magnets (attraction) - field range
MW 70x30 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Strength (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	386.08 kg / 851.15 pounds 5 354 Gs	57.91 kg / 127.67 pounds 57911 g / 568.1 N	N/A
1 mm	376.71 kg / 830.51 pounds 7 969 Gs	56.51 kg / 124.58 pounds 56507 g / 554.3 N	339.04 kg / 747.46 pounds ~0 Gs
2 mm	367.14 kg / 809.41 pounds 7 867 Gs	55.07 kg / 121.41 pounds 55071 g / 540.2 N	330.43 kg / 728.47 pounds ~0 Gs
3 mm	357.57 kg / 788.30 pounds 7 764 Gs	53.63 kg / 118.24 pounds 53635 g / 526.2 N	321.81 kg / 709.47 pounds ~0 Gs
5 mm	338.48 kg / 746.21 pounds 7 554 Gs	50.77 kg / 111.93 pounds 50772 g / 498.1 N	304.63 kg / 671.59 pounds ~0 Gs
10 mm	291.85 kg / 643.41 pounds 7 014 Gs	43.78 kg / 96.51 pounds 43777 g / 429.5 N	262.66 kg / 579.07 pounds ~0 Gs
20 mm	208.26 kg / 459.13 pounds 5 925 Gs	31.24 kg / 68.87 pounds 31238 g / 306.4 N	187.43 kg / 413.21 pounds ~0 Gs
50 mm	62.81 kg / 138.47 pounds 3 254 Gs	9.42 kg / 20.77 pounds 9421 g / 92.4 N	56.53 kg / 124.62 pounds ~0 Gs
60 mm	41.37 kg / 91.21 pounds 2 641 Gs	6.21 kg / 13.68 pounds 6206 g / 60.9 N	37.24 kg / 82.09 pounds ~0 Gs
70 mm	27.41 kg / 60.43 pounds 2 150 Gs	4.11 kg / 9.06 pounds 4112 g / 40.3 N	24.67 kg / 54.39 pounds ~0 Gs
80 mm	18.35 kg / 40.46 pounds 1 759 Gs	2.75 kg / 6.07 pounds 2753 g / 27.0 N	16.52 kg / 36.41 pounds ~0 Gs
90 mm	12.45 kg / 27.44 pounds 1 449 Gs	1.87 kg / 4.12 pounds 1867 g / 18.3 N	11.20 kg / 24.70 pounds ~0 Gs
100 mm	8.57 kg / 18.89 pounds 1 202 Gs	1.29 kg / 2.83 pounds 1285 g / 12.6 N	7.71 kg / 17.00 pounds ~0 Gs

Two strong neodymiums interact from a much further distance than a magnet and sheet combination. The setup of magnet-to-magnet generates a stronger field and a wider radius of operation. Planning to create a powerful holder? Utilize two neodymiums instead of one magnet and a striker plate. Be careful that when attracting two neodymiums, the pinch force is extreme. The repulsion force is marginally weaker than the attraction, but still large.
*Flux density between like poles drops to ~0 Gs at the midpoint of the gap (caused by magnetic field nullification).
* Estimates apply to shear force of two same magnets (friction ~0.15 for Ni-Ni coating).

Table 7: Protective zones (implants) - precautionary measures
MW 70x30 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	34.5 cm
Hearing aid	10 Gs (1.0 mT)	27.0 cm
Mechanical watch	20 Gs (2.0 mT)	21.0 cm
Phone / Smartphone	40 Gs (4.0 mT)	16.5 cm
Car key	50 Gs (5.0 mT)	15.0 cm
Payment card	400 Gs (40.0 mT)	6.5 cm
HDD hard drive	600 Gs (60.0 mT)	5.5 cm

Powerful magnet radiation is a real danger to electronics as well as medical implants. These neodymiums generate a field that disrupts operation of digital equipment. Notice: the unseen radiation acts through matter and glass. Increased vigilance must be exercised by people with hearing aids and insulin pumps. The risk also applies to: automatic timepieces, remotes, speakers, and screens. Do not bring the product near payment cards, hard drives, or precise measuring instruments.

Table 8: Dynamics (cracking risk) - collision effects
MW 70x30 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	16.84 km/h (4.68 m/s)	9.47 J
30 mm	24.00 km/h (6.67 m/s)	19.25 J
50 mm	29.50 km/h (8.19 m/s)	29.07 J
100 mm	41.18 km/h (11.44 m/s)	56.66 J

NdFeB products are delicate – a violent impact against metal risks their cracking. Pay attention to connection velocity – a neodymium left loose turns into a projectile. Kinetic force can destroy the magnet or injury to fingers. Always hold the magnet during bringing near metal so it doesn't hit violently against the steel surface. A collision at high speed means shattering of the neodymium. Wear eye protection when playing with powerful specimens.

Table 9: Coating parameters (durability)
MW 70x30 / N38

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

Neodymium magnets are highly susceptible to corrosion without proper protection. Moisture resistance is crucial for installations in bathrooms or outdoors.

Table 10: Electrical data (Flux)
MW 70x30 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	159 225 Mx	1592.3 µWb
P_c Coefficient	0.53	Low (Flat)

Flux value emitted by the magnet pole. Key data for generator designers and motors. The P_c coefficient determines the working geometry.

Table 11: Submerged application
MW 70x30 / N38

Environment	Effective steel pull	Effect
Air (land)	144.18 kg	Standard
Water (riverbed)	165.09 kg (+20.91 kg buoyancy gain)	+14.5%

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

Water displaces steel, making heavy objects slightly lighter. As a result, your magnet will pull a heavier object from the bottom than if you lifted it in the air.

1. Wall mount (shear)

*Caution: On a vertical wall, the magnet retains only approx. 20-30% of its perpendicular strength.

2. Plate thickness effect

*Thin steel (e.g. computer case) significantly limits 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) = 0.53

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

Material specification

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%

Ecology and recycling (GPSR)

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: 010096-2026

Magnet Unit Converter

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The presented product is an extremely powerful cylindrical magnet, composed of modern NdFeB material, which, at dimensions of Ø70x30 mm, guarantees optimal power. This specific item boasts high dimensional repeatability and professional build quality, making it an excellent solution for the most demanding engineers and designers. As a cylindrical magnet with impressive force (approx. 144.18 kg), this product is available off-the-shelf from our warehouse in Poland, ensuring lightning-fast order fulfillment. Moreover, its triple-layer Ni-Cu-Ni coating shields 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 positioning or actuating element. Thanks to the pull force of 1414.37 N with a weight of only 865.9 g, this cylindrical magnet is indispensable in miniature devices 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 stability in industry, specialized industrial adhesives are used, which are safe for nickel and fill the gap, guaranteeing durability of the connection.

Grade N38 is the most popular standard for professional neodymium magnets, offering an optimal price-to-power ratio and operational stability. If you need the strongest magnets in the same volume (Ø70x30), 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 Ø70x30 mm, which, at a weight of 865.9 g, makes it an element with impressive magnetic energy density. The key parameter here is the holding force amounting to approximately 144.18 kg (force ~1414.37 N), which, with such defined dimensions, proves the high power of the NdFeB material. The product has a [NiCuNi] coating, which protects the surface against oxidation, giving it an aesthetic, silvery shine.

Standardly, the magnetic axis runs through the center of the cylinder, causing the greatest attraction force to occur on the bases with a diameter of 70 mm. Such an arrangement is standard when connecting magnets in stacks (e.g., in filters) or when mounting in sockets at the bottom of a hole. On request, we can also produce versions magnetized through the diameter if your project requires it.

Strengths and weaknesses of rare earth magnets.

Advantages

Besides their exceptional field intensity, neodymium magnets offer the following advantages:

They retain full power for almost 10 years – the drop is just ~1% (according to analyses),
Neodymium magnets remain extremely resistant to demagnetization caused by external field sources,
The use of an aesthetic coating of noble metals (nickel, gold, silver) causes the element to have aesthetics,
The surface of neodymium magnets generates a strong magnetic field – this is a distinguishing feature,
Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their form) at temperatures up to 230°C and above...
Possibility of custom modeling and adapting to individual applications,
Key role in advanced technology sectors – they find application in magnetic memories, electric motors, medical equipment, and multitasking production systems.
Thanks to efficiency per cm³, small magnets offer high operating force, occupying minimum space,

Disadvantages

What to avoid - cons of neodymium magnets: weaknesses and usage proposals

They are prone to damage 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
Neodymium magnets decrease their force under the influence of heating. As soon as 80°C is exceeded, many of them start losing their power. Therefore, we recommend our special magnets marked [AH], which maintain durability even at temperatures up to 230°C
When exposed to humidity, magnets usually rust. To use them in conditions outside, it is recommended to use protective magnets, such as those in rubber or plastics, which secure oxidation as well as corrosion.
Limited possibility of making threads in the magnet and complicated shapes - recommended is a housing - mounting mechanism.
Possible danger resulting from small fragments of magnets can be dangerous, in case of ingestion, which becomes key in the context of child health protection. Furthermore, small elements of these products can complicate diagnosis medical in case of swallowing.
Higher cost of purchase is one of the disadvantages compared to ceramic magnets, especially in budget applications

Pull force analysis

Highest magnetic holding force – what it depends on?

Information about lifting capacity is the result of a measurement for the most favorable conditions, taking into account:

with the application of a sheet made of special test steel, guaranteeing maximum field concentration
with a thickness no less than 10 mm
characterized by even structure
under conditions of no distance (surface-to-surface)
for force acting at a right angle (pull-off, not shear)
at ambient temperature room level

Lifting capacity in practice – influencing factors

Bear in mind that the magnet holding may be lower influenced by the following factors, starting with the most relevant:

Distance – the presence of any layer (rust, tape, air) acts as an insulator, which lowers capacity steeply (even by 50% at 0.5 mm).
Loading method – catalog parameter refers to pulling vertically. When applying parallel force, the magnet holds significantly lower power (typically approx. 20-30% of maximum force).
Base massiveness – too thin steel does not close the flux, causing part of the flux to be lost to the other side.
Steel grade – ideal substrate is high-permeability steel. Cast iron may have worse magnetic properties.
Plate texture – ground elements ensure maximum contact, which increases force. Uneven metal reduce efficiency.
Thermal factor – high temperature reduces magnetic field. Exceeding the limit temperature can permanently damage the magnet.

Holding force was checked on a smooth steel plate of 20 mm thickness, when the force acted perpendicularly, whereas under shearing force the lifting capacity is smaller. Moreover, even a small distance between the magnet and the plate lowers the load capacity.

Warnings

Do not overheat magnets

Watch the temperature. Exposing the magnet to high heat will destroy its magnetic structure and pulling force.

Allergic reactions

It is widely known that the nickel plating (standard magnet coating) is a potent allergen. If your skin reacts to metals, avoid direct skin contact and choose coated magnets.

Serious injuries

Mind your fingers. Two powerful magnets will snap together instantly with a force of several hundred kilograms, destroying everything in their path. Be careful!

Medical interference

Medical warning: Neodymium magnets can deactivate heart devices and defibrillators. Do not approach if you have medical devices.

Keep away from children

Product intended for adults. Tiny parts pose a choking risk, leading to serious injuries. Keep away from kids and pets.

Risk of cracking

Protect your eyes. Magnets can fracture upon uncontrolled impact, ejecting shards into the air. Wear goggles.

Compass and GPS

Navigation devices and mobile phones are highly sensitive to magnetism. Close proximity with a strong magnet can ruin the internal compass in your phone.

Electronic devices

Powerful magnetic fields can corrupt files on credit cards, HDDs, and storage devices. Stay away of min. 10 cm.

Powerful field

Exercise caution. Rare earth magnets attract from a distance and snap with massive power, often faster than you can react.

Fire warning

Dust created during machining of magnets is flammable. Avoid drilling into magnets unless you are an expert.

Security! Need more info? Read our article: Are neodymium magnets dangerous?

MW 70x30 / N38 - cylindrical magnet

Technical parameters of the product - MW 70x30 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical analysis of the product - data

Table 1: Static force (pull vs distance) - power drop MW 70x30 / N38

Table 2: Sliding load (wall) MW 70x30 / N38

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces MW 70x30 / N38

Table 4: Steel thickness (saturation) - power losses MW 70x30 / N38

Table 5: Thermal resistance (stability) - thermal limit MW 70x30 / N38

Table 6: Two magnets (attraction) - field range MW 70x30 / N38

Table 7: Protective zones (implants) - precautionary measures MW 70x30 / N38

Table 8: Dynamics (cracking risk) - collision effects MW 70x30 / N38

Table 9: Coating parameters (durability) MW 70x30 / N38

Table 10: Electrical data (Flux) MW 70x30 / N38

Table 11: Submerged application MW 70x30 / N38

1. Wall mount (shear)

2. Plate thickness effect

3. Power loss vs temp

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

Material specification

Ecology and recycling (GPSR)

Force (pull)

Magnetic Induction

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Strengths and weaknesses of rare earth magnets.

Advantages

Disadvantages

Pull force analysis

Highest magnetic holding force – what it depends on?

Lifting capacity in practice – influencing factors

Warnings

Do not overheat magnets

Allergic reactions

Serious injuries

Medical interference

Keep away from children

Risk of cracking

Compass and GPS

Electronic devices

Powerful field

Fire warning

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (pull vs distance) - power drop
MW 70x30 / N38

Table 2: Sliding load (wall)
MW 70x30 / N38

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces
MW 70x30 / N38

Table 4: Steel thickness (saturation) - power losses
MW 70x30 / N38

Table 5: Thermal resistance (stability) - thermal limit
MW 70x30 / N38

Table 6: Two magnets (attraction) - field range
MW 70x30 / N38

Table 7: Protective zones (implants) - precautionary measures
MW 70x30 / N38

Table 8: Dynamics (cracking risk) - collision effects
MW 70x30 / N38

Table 9: Coating parameters (durability)
MW 70x30 / N38

Table 10: Electrical data (Flux)
MW 70x30 / N38

Table 11: Submerged application
MW 70x30 / N38