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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

view technical specifications »

317.17 ZŁ with VAT / pcs + price for transport

257.86 ZŁ net + 23% VAT / pcs

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Detailed specification - 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

Engineering simulation of the magnet - report

These values are the outcome of a physical calculation. Values are based on models for the material Nd₂Fe₁₄B. Real-world performance may deviate from the simulation results. Treat these calculations as a preliminary roadmap when designing systems.

Table 1: Static pull force (force 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 lbs 144180.0 g / 1414.4 N	dangerous!
1 mm	3934 Gs 393.4 mT	137.11 kg / 302.27 lbs 137108.9 g / 1345.0 N	dangerous!
2 mm	3830 Gs 383.0 mT	129.96 kg / 286.52 lbs 129962.6 g / 1274.9 N	dangerous!
3 mm	3724 Gs 372.4 mT	122.86 kg / 270.87 lbs 122863.7 g / 1205.3 N	dangerous!
5 mm	3507 Gs 350.7 mT	108.99 kg / 240.28 lbs 108989.8 g / 1069.2 N	dangerous!
10 mm	2963 Gs 296.3 mT	77.77 kg / 171.46 lbs 77773.1 g / 763.0 N	dangerous!
15 mm	2452 Gs 245.2 mT	53.26 kg / 117.41 lbs 53257.6 g / 522.5 N	dangerous!
20 mm	2003 Gs 200.3 mT	35.55 kg / 78.38 lbs 35554.2 g / 348.8 N	dangerous!
30 mm	1321 Gs 132.1 mT	15.45 kg / 34.06 lbs 15450.6 g / 151.6 N	dangerous!
50 mm	601 Gs 60.1 mT	3.20 kg / 7.05 lbs 3199.7 g / 31.4 N	medium risk

Grip strength weakens sharply with every mm of spacing. Remember that even the smallest gap (e.g., dirt, paint, rust) noticeably weakens the grip. Magnets operate strongest during direct contact; air break nullifies the force. Analyze how rapidly the parameters fall, when the product does not adhere flatly to the steel surface. When planning the assembly, eliminate redundant distances.

Table 2: Vertical load (vertical surface)
MW 70x30 / N38

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

This section calculates the estimated force needed to cause the sliding of the magnet down on a vertical metal surface (considering standard friction). The holding force is relative to the gap size between the magnet and the surface.

Table 3: Vertical assembly (sliding) - vertical pull
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 lbs 43254.0 g / 424.3 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	28.84 kg / 63.57 lbs 28836.0 g / 282.9 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	14.42 kg / 31.79 lbs 14418.0 g / 141.4 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	72.09 kg / 158.93 lbs 72090.0 g / 707.2 N

When placing a holder on a upright surface (e.g., a board), it will only hold barely approx. 20%-30% of its maximum pull force. Gravitational force and a weak degree of grip cause that magnets slide down easier than they pull off. Planning a wall mount? Consider that the shear force is much weaker than the maximum static pull force. On a painted metal, the magnet will slip down under a significantly smaller cargo. Application of an anti-slip coating can drastically improve the result.

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

A thin sheet is not enough to focus the full magnetic flux, which wastes potential of the magnet. If you mount a strong magnet to a thin surface, the field will pass right through and the holding will be smaller. To squeeze full efficiency of this magnet's power, you require a sufficiently solid backing of steel. The material oversaturation means that on delicate walls (e.g., appliance housings), the product shows lower pull force. We suggest choosing the steel dimension from these parameters.

Table 5: Working in heat (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 lbs 144180.0 g / 1414.4 N	OK
40 °C	-2.2%	141.01 kg / 310.87 lbs 141008.0 g / 1383.3 N	OK
60 °C	-4.4%	137.84 kg / 303.88 lbs 137836.1 g / 1352.2 N
80 °C	-6.6%	134.66 kg / 296.88 lbs 134664.1 g / 1321.1 N
100 °C	-28.8%	102.66 kg / 226.32 lbs 102656.2 g / 1007.1 N

Standard neodymium magnets lose power above the temperature limit. Watch out for overheating – excessive heat can irreversibly destroy this magnet. With every degree above norm, the neodymium's power briefly drops. Refrain from using this magnet close to heaters exceeding its working range. Too high temperature will result in destruction of magnetism.

*Technical advisory: Heat tolerance is determined by both grade, and the Permeance Coefficient Pc. Flat magnets (low Pc) may lose charge permanently sooner compared to rod magnets. Red status in the table points to permanent field degradation for this specific geometry.

Table 6: Magnet-Magnet interaction (repulsion) - field collision
MW 70x30 / N38

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

Two strong neodymiums attract each other from a wider radius than a magnet and steel combination. The setup of two magnets generates a stronger field and a larger range of operation. Planning to create a powerful holder? Utilize two neodymiums instead of one magnet and a striker plate. Remember that when connecting a pair of magnets, the collision energy is massive. The levitation is slightly lower than the attraction, but still significant.
*Field value for N-N configuration drops to ~0 Gs in the exact middle between the magnets (due to field cancellation).
Note: Calculations demonstrate friction force of a pair of matching magnets (friction coefficient ~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
Timepiece	20 Gs (2.0 mT)	21.0 cm
Mobile device	40 Gs (4.0 mT)	16.5 cm
Remote	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 poses a large risk to electronic devices as well as medical implants. These neodymiums produce a field that prevents correct functioning of sensitive medical devices. Be aware: the invisible magnetic field acts through matter and glass. Special caution must be taken by people with hearing aids and drug dispensers. Influence will be felt by: automatic timepieces, car keys, membranes, and screens. Do not place the magnet near cards, hard drives, or sensitive navigation tools.

Table 8: Dynamics (cracking risk) - warning
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 magnet released freely becomes dangerous. Kinetic force can destroy the magnet or painful pinches to skin. Be sure to control the product during installation so it doesn't hit violently against the metal. A contact at a velocity of dozens of km/h almost guarantees destruction of the neodymium. Wear safety glasses when handling with powerful specimens.

Table 9: Surface protection spec
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)

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 70x30 / N38

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

Total magnetic flux passing through the magnet pole. Key data when building generators and motors. The P_c coefficient defines the magnet's operating point.

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%

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

Water displaces steel, making heavy objects slightly lighter. Note: for permanent underwater work, we recommend magnets with an anti-corrosive (epoxy) coating.

1. Vertical hold

*Note: On a vertical wall, the magnet retains just ~20% of its nominal pull.

2. Steel saturation

*Thin metal sheet (e.g. computer case) severely weakens the holding force.

3. Thermal stability

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

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 0.53

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.

Engineering data and GPSR

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: 010096-2026

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This product is an exceptionally strong cylinder magnet, made from durable NdFeB material, which, at dimensions of Ø70x30 mm, guarantees maximum efficiency. This specific item boasts high dimensional repeatability and professional build quality, making it an ideal solution for the most demanding engineers and designers. As a cylindrical magnet with impressive force (approx. 144.18 kg), this product is in stock from our European logistics center, ensuring quick order fulfillment. Additionally, its Ni-Cu-Ni coating shields it against corrosion in standard operating conditions, guaranteeing an aesthetic appearance and durability for years.

It successfully proves itself in DIY projects, advanced automation, and broadly understood industry, serving as a fastening or actuating element. Thanks to the high power of 1414.37 N with a weight of only 865.9 g, this rod is indispensable in miniature devices and wherever every gram matters.

Since our magnets have a tolerance of ±0.1mm, 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 are safe for nickel and fill the gap, guaranteeing durability of the connection.

Magnets N38 are strong enough for the majority of applications in automation and machine building, where extreme miniaturization with maximum force is not required. 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 in continuous sale in our warehouse.

The presented product is a neodymium magnet with precisely defined parameters: diameter 70 mm and height 30 mm. 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 grade of the NdFeB material. The product has a [NiCuNi] coating, which protects the surface against external factors, giving it an aesthetic, silvery shine.

This rod magnet is magnetized axially (along the height of 30 mm), which means that the N and S poles are located on the flat, circular surfaces. 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 through the diameter if your project requires it.

Advantages as well as disadvantages of Nd₂Fe₁₄B magnets.

Strengths

Besides their durability, neodymium magnets are valued for these benefits:

They do not lose magnetism, even over nearly 10 years – the decrease in power is only ~1% (based on measurements),
Magnets perfectly defend themselves against loss of magnetization caused by foreign field sources,
Thanks to the elegant finish, the surface of nickel, gold-plated, or silver-plated gives an aesthetic appearance,
They show high magnetic induction at the operating surface, which increases their power,
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 versatility in forming and the capacity to customize to unusual requirements,
Significant place in high-tech industry – they are commonly used in magnetic memories, motor assemblies, diagnostic systems, also technologically advanced constructions.
Thanks to efficiency per cm³, small magnets offer high operating force, in miniature format,

Cons

What to avoid - cons of neodymium magnets and ways of using them

They are fragile upon heavy impacts. To avoid cracks, it is worth protecting magnets using a steel holder. Such protection not only shields the magnet but also increases its resistance to damage
Neodymium magnets lose their strength under the influence of heating. As soon as 80°C is exceeded, many of them start losing their force. Therefore, we recommend our special magnets marked [AH], which maintain stability even at temperatures up to 230°C
Magnets exposed to a humid environment can corrode. Therefore while 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 complex forms in magnets, we propose using cover - magnetic holder.
Possible danger resulting from small fragments of magnets are risky, if swallowed, which becomes key in the context of child health protection. It is also worth noting that small elements of these devices are able to complicate diagnosis medical when they are in the body.
Due to complex production process, their price is relatively high,

Pull force analysis

Maximum magnetic pulling force – what it depends on?

Magnet power was defined for optimal configuration, taking into account:

on a block made of structural steel, perfectly concentrating the magnetic flux
whose thickness equals approx. 10 mm
characterized by even structure
without any clearance between the magnet and steel
under vertical application of breakaway force (90-degree angle)
at conditions approx. 20°C

Key elements affecting lifting force

Bear in mind that the magnet holding will differ subject to the following factors, starting with the most relevant:

Clearance – existence of foreign body (paint, tape, gap) acts as an insulator, which lowers capacity rapidly (even by 50% at 0.5 mm).
Force direction – remember that the magnet has greatest strength perpendicularly. Under sliding down, the capacity drops significantly, often to levels of 20-30% of the maximum value.
Substrate thickness – for full efficiency, the steel must be adequately massive. Thin sheet limits the attraction force (the magnet "punches through" it).
Chemical composition of the base – mild steel gives the best results. Alloy admixtures lower magnetic properties and lifting capacity.
Smoothness – ideal contact is obtained only on polished steel. Any scratches and bumps reduce the real contact area, reducing force.
Thermal environment – heating the magnet causes a temporary drop of induction. Check the thermal limit for a given model.

Holding force was measured on a smooth steel plate of 20 mm thickness, when a perpendicular force was applied, however under attempts to slide the magnet the holding force is lower. Additionally, even a minimal clearance between the magnet’s surface and the plate lowers the holding force.

Safe handling of neodymium magnets

Do not give to children

Adult use only. Small elements can be swallowed, causing severe trauma. Store out of reach of children and animals.

Data carriers

Device Safety: Strong magnets can damage payment cards and delicate electronics (pacemakers, medical aids, mechanical watches).

Life threat

Individuals with a pacemaker have to maintain an large gap from magnets. The magnetic field can stop the functioning of the implant.

Handling guide

Use magnets consciously. Their powerful strength can surprise even professionals. Stay alert and do not underestimate their power.

Heat sensitivity

Keep cool. NdFeB magnets are sensitive to temperature. If you need resistance above 80°C, look for HT versions (H, SH, UH).

Protective goggles

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

Dust is flammable

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

Physical harm

Large magnets can break fingers in a fraction of a second. Do not put your hand betwixt two strong magnets.

Phone sensors

Note: neodymium magnets generate a field that confuses precision electronics. Maintain a separation from your mobile, device, and navigation systems.

Nickel allergy

Medical facts indicate that the nickel plating (standard magnet coating) is a strong allergen. For allergy sufferers, refrain from direct skin contact and choose coated magnets.

Safety First! Looking for details? Read our article: Are neodymium magnets dangerous?

MW 70x30 / N38 - cylindrical magnet

Detailed specification - MW 70x30 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Engineering simulation of the magnet - report

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

Table 2: Vertical load (vertical surface) MW 70x30 / N38

Table 3: Vertical assembly (sliding) - vertical pull MW 70x30 / N38

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

Table 5: Working in heat (stability) - thermal limit MW 70x30 / N38

Table 6: Magnet-Magnet interaction (repulsion) - field collision MW 70x30 / N38

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

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

Table 9: Surface protection spec MW 70x30 / N38

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

Table 11: Submerged application MW 70x30 / N38

1. Vertical hold

2. Steel saturation

3. Thermal stability

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

Elemental analysis

Sustainability

Magnet pull force

Magnetic Induction

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Advantages as well as disadvantages of Nd2Fe14B magnets.

Strengths

Cons

Pull force analysis

Maximum magnetic pulling force – what it depends on?

Key elements affecting lifting force

Safe handling of neodymium magnets

Do not give to children

Data carriers

Life threat

Handling guide

Heat sensitivity

Protective goggles

Dust is flammable

Physical harm

Phone sensors

Nickel allergy

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

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

Table 2: Vertical load (vertical surface)
MW 70x30 / N38

Table 3: Vertical assembly (sliding) - vertical pull
MW 70x30 / N38

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

Table 5: Working in heat (stability) - thermal limit
MW 70x30 / N38

Table 6: Magnet-Magnet interaction (repulsion) - field collision
MW 70x30 / N38

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

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

Table 9: Surface protection spec
MW 70x30 / N38

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

Table 11: Submerged application
MW 70x30 / N38

Advantages as well as disadvantages of Nd₂Fe₁₄B magnets.