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MW 70x30 / N38 - cylindrical magnet

Name: Dhit sp. z o.o.
Address: Kościuszki 6A, Ożarów Mazowiecki, mazowieckie, 05-850, PL
Telephone: +48 22 499 98 98
Price range: 1-6500 PLN
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

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317.17 ZŁ with VAT / pcs + price for transport

257.86 ZŁ net + 23% VAT / pcs

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Technical 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

Technical analysis of the product - report

The following data constitute the outcome of a physical calculation. Values were calculated on algorithms for the class Nd₂Fe₁₄B. Actual parameters might slightly deviate from the simulation results. Please consider these calculations as a supplementary guide when designing systems.

Table 1: Static force (pull vs distance) - characteristics
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	critical level
1 mm	3934 Gs 393.4 mT	137.11 kg / 302.27 lbs 137108.9 g / 1345.0 N	critical level
2 mm	3830 Gs 383.0 mT	129.96 kg / 286.52 lbs 129962.6 g / 1274.9 N	critical level
3 mm	3724 Gs 372.4 mT	122.86 kg / 270.87 lbs 122863.7 g / 1205.3 N	critical level
5 mm	3507 Gs 350.7 mT	108.99 kg / 240.28 lbs 108989.8 g / 1069.2 N	critical level
10 mm	2963 Gs 296.3 mT	77.77 kg / 171.46 lbs 77773.1 g / 763.0 N	critical level
15 mm	2452 Gs 245.2 mT	53.26 kg / 117.41 lbs 53257.6 g / 522.5 N	critical level
20 mm	2003 Gs 200.3 mT	35.55 kg / 78.38 lbs 35554.2 g / 348.8 N	critical level
30 mm	1321 Gs 132.1 mT	15.45 kg / 34.06 lbs 15450.6 g / 151.6 N	critical level
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 per each millimeter of spacing. Note that even a microscopic distance (e.g., contamination, varnish, dust) significantly reduces the pull force. Neodymiums hold optimally at the point of direct contact; gap nullifies the power. Analyze how quickly the parameters plummet, when the magnet does not touch flatly to the metal substrate. When planning the assembly, discard additional spacers.

Table 2: Vertical hold (wall)
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 approximate shear load necessary to cause the downward movement of the magnet downwards on a vertical steel wall (considering typical friction). The holding force is a function of the distance 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 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 element on a vertical plane (e.g., a board), it will maintain only about 20%-30% of its maximum pull force. Gravity as well as a weak degree of grip cause that magnets slip faster than they pop off the substrate. Designing a vertical fastening? Consider that the sliding force is significantly lower than the maximum static pull force. On a slippery surface, the holder will slip down under a noticeably lighter load. Application of an anti-slip pad can drastically raise the stability.

Table 4: Material efficiency (substrate influence) - 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 metal plate is incapable of absorb the entire magnetic field, which squanders power of the holder. If you attach a powerful product to a weak sheet, the field will penetrate right through and the holding will be smaller. To utilize full efficiency of this neodymium's power, you need a suitably thick element of steel. The saturation effect means that on thin elements (e.g., appliance housings), the magnet shows lower pull force. We advise picking the steel dimension based on the following data.

Table 5: Working in heat (stability) - power drop
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

Ordinary NdFeB products irreversibly lose power above the temperature limit. Protect against heat – high temperature can irreversibly destroy this product. With increasing heat, the magnet's power momentarily drops. Do not use this magnet in hot environments higher than its operating temperature limit. Ignoring the limit will lead to permanent loss of magnetism.

*Technical advisory: Heat tolerance is determined by both grade, as well as the dimension ratios. Flat magnets (pancake types) may lose charge permanently sooner than taller cylinders. Red status in the table indicates permanent field degradation for this particular item.

Table 6: Magnet-Magnet interaction (attraction) - field range
MW 70x30 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Lateral 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 magnets interact from a significantly greater distance than a magnet and sheet setup. The connection of magnet-to-magnet produces a massive flux and a larger range of performance. Designing a powerful holder? Utilize two neodymiums instead of one magnet and a steel. Remember that when attracting two neodymiums, the impact force is massive. The repulsion force is marginally weaker than the connection force, but still significant.
*Flux density between like poles reaches ~0 Gs in the exact middle of the gap (caused by magnetic field nullification).
* Calculations apply to sliding force of a pair of identical magnets (friction coefficient ~0.15 for Ni-Ni plating).

Table 7: Protective zones (implants) - warnings
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
Phone / Smartphone	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

Extremely neodym field is a large risk to IT equipment and pacemakers. These NdFeB products produce a field that prevents correct functioning of sensitive medical devices. Notice: the invisible magnetic field passes through tissues and glass. Exceptional care must be taken by people with hearing aids and drug dispensers. Influence will be felt by: mechanical watches, remotes, membranes, and screens. Do not place the magnet near cards, HDD media, or sensitive navigation tools.

Table 8: Collisions (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 prone to chipping – a collision with steel causes immediate chipping. Pay attention to connection velocity – a magnet released freely becomes dangerous. Impact energy can destroy the magnet or painful pinches to fingers. Always hold the magnet during installation so it doesn't hit violently against the metal. A collision at high speed ends with a crack of the magnet. Wear eye protection when handling with large magnets.

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 SST (salt spray test) is an industry standard for determining coating lifespan in harsh conditions. 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)

Flux value emitted by the pole surface. Essential parameter in coil applications and motors. The P_c coefficient defines the working geometry.

Table 11: Physics of underwater searching
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: Standard nickel requires drying after every contact with moisture; lack of maintenance will lead to rust spots.

The magnetic field penetrates through water without any losses. Buoyancy helps in lifting finds.

1. Wall mount (shear)

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

2. Efficiency vs thickness

*Thin steel (e.g. 0.5mm PC case) significantly reduces 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.

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%

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

Measurement Calculator

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MW 5x2 / N38 - cylindrical magnet

0.1845 ZŁ brutto / pcs

This product is an exceptionally strong cylinder magnet, composed of modern NdFeB material, which, with dimensions of Ø70x30 mm, guarantees maximum efficiency. The MW 70x30 / N38 model is characterized by a tolerance of ±0.1mm and industrial build quality, making it an ideal solution for professional 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 rapid order fulfillment. Moreover, its triple-layer Ni-Cu-Ni coating secures it against corrosion in typical operating conditions, guaranteeing an aesthetic appearance and durability for years.

It successfully proves itself in modeling, advanced automation, and broadly understood industry, serving as a positioning or actuating element. Thanks to the high power of 1414.37 N with a weight of only 865.9 g, this cylindrical magnet is indispensable in electronics and wherever low weight is crucial.

Since our magnets have a tolerance of ±0.1mm, the best method 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 industry, specialized industrial adhesives are used, which do not react with the nickel coating 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 even stronger 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 store.

The presented product is a neodymium magnet with precisely defined parameters: diameter 70 mm and height 30 mm. The value of 1414.37 N means that the magnet is capable of holding a weight many times exceeding its own mass of 865.9 g. The product has a [NiCuNi] coating, which secures it against oxidation, 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.

Strengths and weaknesses of Nd₂Fe₁₄B magnets.

Strengths

In addition to their long-term stability, neodymium magnets provide the following advantages:

They have constant strength, and over more than ten years their performance decreases symbolically – ~1% (according to theory),
They feature excellent resistance to magnetic field loss as a result of external fields,
By covering with a shiny layer of gold, the element gains an modern look,
Magnets are distinguished by impressive magnetic induction on the outer side,
Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their shape) at temperatures up to 230°C and above...
Possibility of custom forming and modifying to defined applications,
Fundamental importance in high-tech industry – they are used in magnetic memories, electric motors, diagnostic systems, also modern systems.
Compactness – despite small sizes they provide effective action, making them ideal for precision applications

Disadvantages

What to avoid - cons of neodymium magnets: application proposals

To avoid cracks under impact, we recommend using special steel holders. Such a solution secures the magnet and simultaneously increases its durability.
Neodymium magnets lose power when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of power (a factor is the shape as well as dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are very resistant to heat
Due to the susceptibility of magnets to corrosion in a humid environment, we suggest using waterproof magnets made of rubber, plastic or other material stable to moisture, when using outdoors
Limited ability of making nuts in the magnet and complicated shapes - recommended is a housing - magnet mounting.
Possible danger to health – tiny shards of magnets pose a threat, in case of ingestion, which becomes key in the aspect of protecting the youngest. It is also worth noting that small components of these devices are able to be problematic in diagnostics medical when they are in the body.
With budget limitations the cost of neodymium magnets is economically unviable,

Holding force characteristics

Maximum magnetic pulling force – what it depends on?

The lifting capacity listed is a measurement result executed under specific, ideal conditions:

with the application of a yoke made of special test steel, ensuring full magnetic saturation
possessing a thickness of min. 10 mm to avoid saturation
with a surface free of scratches
without any insulating layer between the magnet and steel
under vertical application of breakaway force (90-degree angle)
in neutral thermal conditions

Magnet lifting force in use – key factors

It is worth knowing that the magnet holding will differ depending on the following factors, in order of importance:

Distance (betwixt the magnet and the metal), as even a microscopic distance (e.g. 0.5 mm) leads to a decrease in force by up to 50% (this also applies to paint, rust or debris).
Loading method – catalog parameter refers to detachment vertically. When slipping, the magnet holds significantly lower power (typically approx. 20-30% of maximum force).
Plate thickness – insufficiently thick plate does not accept the full field, causing part of the power to be wasted to the other side.
Steel grade – ideal substrate is pure iron steel. Hardened steels may attract less.
Smoothness – full contact is possible only on polished steel. Rough texture create air cushions, weakening the magnet.
Temperature influence – hot environment weakens magnetic field. Too high temperature can permanently demagnetize the magnet.

Holding force was tested on the plate surface of 20 mm thickness, when a perpendicular force was applied, whereas under shearing force the holding force is lower. Moreover, even a minimal clearance between the magnet and the plate decreases the holding force.

Precautions when working with NdFeB magnets

Do not underestimate power

Handle with care. Rare earth magnets attract from a long distance and connect with massive power, often faster than you can move away.

Warning for allergy sufferers

Some people experience a hypersensitivity to nickel, which is the typical protective layer for NdFeB magnets. Extended handling can result in a rash. We recommend wear safety gloves.

Adults only

NdFeB magnets are not intended for children. Swallowing several magnets may result in them pinching intestinal walls, which constitutes a direct threat to life and requires immediate surgery.

Combustion hazard

Fire hazard: Neodymium dust is explosive. Avoid machining magnets in home conditions as this may cause fire.

Shattering risk

NdFeB magnets are ceramic materials, meaning they are prone to chipping. Clashing of two magnets will cause them shattering into small pieces.

Maximum temperature

Watch the temperature. Exposing the magnet above 80 degrees Celsius will permanently weaken its magnetic structure and pulling force.

Data carriers

Equipment safety: Strong magnets can damage payment cards and delicate electronics (heart implants, medical aids, timepieces).

Serious injuries

Large magnets can break fingers in a fraction of a second. Under no circumstances place your hand betwixt two attracting surfaces.

Medical implants

Warning for patients: Strong magnetic fields disrupt medical devices. Keep minimum 30 cm distance or request help to handle the magnets.

Phone sensors

Navigation devices and smartphones are highly susceptible to magnetic fields. Close proximity with a powerful NdFeB magnet can permanently damage the sensors in your phone.

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

MW 70x30 / N38 - cylindrical magnet

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

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Technical analysis of the product - report

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

Table 2: Vertical hold (wall) MW 70x30 / N38

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

Table 4: Material efficiency (substrate influence) - power losses MW 70x30 / N38

Table 5: Working in heat (stability) - power drop MW 70x30 / N38

Table 6: Magnet-Magnet interaction (attraction) - field range MW 70x30 / N38

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

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

Table 9: Surface protection spec MW 70x30 / N38

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

Table 11: Physics of underwater searching MW 70x30 / N38

1. Wall mount (shear)

2. Efficiency vs thickness

3. Thermal stability

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

Material specification

Sustainability

Magnet pull force

Magnetic Field

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MW 5x2 / N38 - cylindrical magnet

Strengths and weaknesses of Nd2Fe14B magnets.

Strengths

Disadvantages

Holding force characteristics

Maximum magnetic pulling force – what it depends on?

Magnet lifting force in use – key factors

Precautions when working with NdFeB magnets

Do not underestimate power

Warning for allergy sufferers

Adults only

Combustion hazard

Shattering risk

Maximum temperature

Data carriers

Serious injuries

Medical implants

Phone sensors

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

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

Table 2: Vertical hold (wall)
MW 70x30 / N38

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

Table 4: Material efficiency (substrate influence) - power losses
MW 70x30 / N38

Table 5: Working in heat (stability) - power drop
MW 70x30 / N38

Table 6: Magnet-Magnet interaction (attraction) - field range
MW 70x30 / N38

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

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

Table 9: Surface protection spec
MW 70x30 / N38

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

Table 11: Physics of underwater searching
MW 70x30 / N38

Strengths and weaknesses of Nd₂Fe₁₄B magnets.