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MW 4x10 / 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 010075

GTIN/EAN: 5906301810742

5.00

Diameter Ø

4 mm [±0,1 mm]

Height

10 mm [±0,1 mm]

Weight

0.94 g

Magnetization Direction

↑ axial

Load capacity

0.32 kg / 3.16 N

Magnetic Induction

606.05 mT / 6061 Gs

Coating

[NiCuNi] Nickel

technical details »

0.800 ZŁ with VAT / pcs + price for transport

0.650 ZŁ net + 23% VAT / pcs

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Contact us by phone +48 22 499 98 98 or send us a note by means of our online form the contact page.
Strength along with structure of a neodymium magnet can be calculated with our magnetic calculator.

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Physical properties - MW 4x10 / N38 - cylindrical magnet

Specification / characteristics - MW 4x10 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010075
GTIN/EAN	5906301810742
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	4 mm [±0,1 mm]
Height	10 mm [±0,1 mm]
Weight	0.94 g
Magnetization Direction	↑ axial
Load capacity ~ ?	0.32 kg / 3.16 N
Magnetic Induction ~ ?	606.05 mT / 6061 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 4x10 / 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 assembly - report

The following data are the result of a physical analysis. Values rely on algorithms for the material Nd₂Fe₁₄B. Operational parameters might slightly differ. Use these data as a reference point when designing systems.

Table 1: Static pull force (force vs distance) - power drop
MW 4x10 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	6049 Gs 604.9 mT	0.32 kg / 0.71 lbs 320.0 g / 3.1 N	safe
1 mm	3327 Gs 332.7 mT	0.10 kg / 0.21 lbs 96.8 g / 0.9 N	safe
2 mm	1732 Gs 173.2 mT	0.03 kg / 0.06 lbs 26.2 g / 0.3 N	safe
3 mm	969 Gs 96.9 mT	0.01 kg / 0.02 lbs 8.2 g / 0.1 N	safe
5 mm	389 Gs 38.9 mT	0.00 kg / 0.00 lbs 1.3 g / 0.0 N	safe
10 mm	90 Gs 9.0 mT	0.00 kg / 0.00 lbs 0.1 g / 0.0 N	safe
15 mm	35 Gs 3.5 mT	0.00 kg / 0.00 lbs 0.0 g / 0.0 N	safe
20 mm	17 Gs 1.7 mT	0.00 kg / 0.00 lbs 0.0 g / 0.0 N	safe
30 mm	6 Gs 0.6 mT	0.00 kg / 0.00 lbs 0.0 g / 0.0 N	safe
50 mm	2 Gs 0.2 mT	0.00 kg / 0.00 lbs 0.0 g / 0.0 N	safe

Magnetic force decreases sharply per each millimeter of gap. Keep in mind that even a microscopic distance (e.g., dirt, varnish, rust) strongly diminishes the holding power. Magnets work strongest at the point of direct contact; distance kills the power. Analyze how quickly the parameters plummet, when the magnet does not adhere flatly to the metal substrate. When planning the arrangement, discard redundant distances.

Table 2: Sliding load (wall)
MW 4x10 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	0.06 kg / 0.14 lbs 64.0 g / 0.6 N
1 mm	Stal (~0.2)	0.02 kg / 0.04 lbs 20.0 g / 0.2 N
2 mm	Stal (~0.2)	0.01 kg / 0.01 lbs 6.0 g / 0.1 N
3 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 2.0 g / 0.0 N
5 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 0.0 g / 0.0 N
10 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 0.0 g / 0.0 N
15 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 0.0 g / 0.0 N
20 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 0.0 g / 0.0 N
30 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 0.0 g / 0.0 N
50 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 0.0 g / 0.0 N

The table below calculates the estimated weight limit sufficient to cause the shifting of the magnet down along a upright steel plate (assuming standard friction). This value is a function of the air gap between the magnet and the surface.

Table 3: Vertical assembly (sliding) - vertical pull
MW 4x10 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	0.10 kg / 0.21 lbs 96.0 g / 0.9 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.06 kg / 0.14 lbs 64.0 g / 0.6 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.03 kg / 0.07 lbs 32.0 g / 0.3 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	0.16 kg / 0.35 lbs 160.0 g / 1.6 N

When hanging a holder on a vertical plane (e.g., a board), it will only hold barely about 1/5 of its nominal power. Gravitational force as well as a weak degree of grip mean that products slide down faster than they pull off. Planning a vertical fastening? Remember that the sliding force is much weaker than the maximum static pull force. On a smooth steel, the holder will slip down under a significantly smaller load. Using a rubber pad can significantly improve the result.

Table 4: Steel thickness (substrate influence) - power losses
MW 4x10 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.03 kg / 0.07 lbs 32.0 g / 0.3 N
1 mm	25%	0.08 kg / 0.18 lbs 80.0 g / 0.8 N
2 mm	50%	0.16 kg / 0.35 lbs 160.0 g / 1.6 N
3 mm	75%	0.24 kg / 0.53 lbs 240.0 g / 2.4 N
5 mm	100%	0.32 kg / 0.71 lbs 320.0 g / 3.1 N
10 mm	100%	0.32 kg / 0.71 lbs 320.0 g / 3.1 N
11 mm	100%	0.32 kg / 0.71 lbs 320.0 g / 3.1 N
12 mm	100%	0.32 kg / 0.71 lbs 320.0 g / 3.1 N

A thin metal plate is incapable of take in the entire magnetic field, which squanders power of the holder. Should you attach a powerful product to a weak sheet, the field will pass right through and the holding will be smaller. To utilize 100% of this neodymium's potential, you require a sufficiently solid piece of metal. The saturation effect means that on delicate walls (e.g., appliance housings), the holder holds weaker. We suggest choosing the steel thickness from these parameters.

Table 5: Thermal resistance (stability) - thermal limit
MW 4x10 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	0.32 kg / 0.71 lbs 320.0 g / 3.1 N	OK
40 °C	-2.2%	0.31 kg / 0.69 lbs 313.0 g / 3.1 N	OK
60 °C	-4.4%	0.31 kg / 0.67 lbs 305.9 g / 3.0 N	OK
80 °C	-6.6%	0.30 kg / 0.66 lbs 298.9 g / 2.9 N
100 °C	-28.8%	0.23 kg / 0.50 lbs 227.8 g / 2.2 N

Ordinary NdFeB products change their properties parameters after exceeding the maximum temperature. Avoid high temperatures – heat can irreversibly destroy this magnet. As the temperature rises, the neodymium's capacity briefly lowers. Refrain from using this product in hot environments exceeding its safe range. Ignoring the limit will result in destruction of magnetic properties.

*Important note: Heat tolerance is determined by both grade, and the Permeance Coefficient Pc. Low-profile magnets (pancake types) are more susceptible to demagnetization sooner compared to rod magnets. The danger warning in the table indicates permanent field degradation for this specific geometry.

Table 6: Magnet-Magnet interaction (attraction) - forces in the system
MW 4x10 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Lateral Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	2.83 kg / 6.25 lbs 6 138 Gs	0.43 kg / 0.94 lbs 425 g / 4.2 N	N/A
1 mm	1.63 kg / 3.59 lbs 9 174 Gs	0.24 kg / 0.54 lbs 244 g / 2.4 N	1.47 kg / 3.23 lbs ~0 Gs
2 mm	0.86 kg / 1.89 lbs 6 655 Gs	0.13 kg / 0.28 lbs 129 g / 1.3 N	0.77 kg / 1.70 lbs ~0 Gs
3 mm	0.44 kg / 0.97 lbs 4 777 Gs	0.07 kg / 0.15 lbs 66 g / 0.7 N	0.40 kg / 0.88 lbs ~0 Gs
5 mm	0.13 kg / 0.28 lbs 2 561 Gs	0.02 kg / 0.04 lbs 19 g / 0.2 N	0.11 kg / 0.25 lbs ~0 Gs
10 mm	0.01 kg / 0.03 lbs 778 Gs	0.00 kg / 0.00 lbs 2 g / 0.0 N	0.01 kg / 0.02 lbs ~0 Gs
20 mm	0.00 kg / 0.00 lbs 179 Gs	0.00 kg / 0.00 lbs 0 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs
50 mm	0.00 kg / 0.00 lbs 19 Gs	0.00 kg / 0.00 lbs 0 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs
60 mm	0.00 kg / 0.00 lbs 12 Gs	0.00 kg / 0.00 lbs 0 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs
70 mm	0.00 kg / 0.00 lbs 8 Gs	0.00 kg / 0.00 lbs 0 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs
80 mm	0.00 kg / 0.00 lbs 6 Gs	0.00 kg / 0.00 lbs 0 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs
90 mm	0.00 kg / 0.00 lbs 4 Gs	0.00 kg / 0.00 lbs 0 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs
100 mm	0.00 kg / 0.00 lbs 3 Gs	0.00 kg / 0.00 lbs 0 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs

Two magnetic products attract each other from a much further distance than a neodymium and metal combination. Such a system of magnet-to-magnet produces a massive flux and a further horizon of performance. Planning to create a strong closure? Use a pair of magnets instead of one magnet and a striker plate. Remember that when attracting two neodymiums, the pinch force is huge. The levitation is slightly lower than the attraction, but still impressive.
*Flux density between like poles reaches ~0 Gs in the exact middle of the gap (caused by magnetic field nullification).
* Calculations refer to shear force of dual identical magnets (friction ~0.15 for Ni-Ni plating).

Table 7: Hazards (electronics) - precautionary measures
MW 4x10 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	3.5 cm
Hearing aid	10 Gs (1.0 mT)	2.5 cm
Mechanical watch	20 Gs (2.0 mT)	2.0 cm
Mobile device	40 Gs (4.0 mT)	1.5 cm
Remote	50 Gs (5.0 mT)	1.5 cm
Payment card	400 Gs (40.0 mT)	0.5 cm
HDD hard drive	600 Gs (60.0 mT)	0.5 cm

Extremely neodym field poses a large risk to IT equipment and pacemakers. These neodymiums generate a field that prevents correct functioning of sensitive medical devices. Remember: the unseen radiation passes through tissues and plastic. Exceptional care must be exercised by people with cochlear implants and drug dispensers. Influence will be felt by: automatic timepieces, remotes, membranes, and screens. Do not place the magnet near cards, HDD media, or precise measuring instruments.

Table 8: Dynamics (kinetic energy) - warning
MW 4x10 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	18.61 km/h (5.17 m/s)	0.01 J
30 mm	32.23 km/h (8.95 m/s)	0.04 J
50 mm	41.61 km/h (11.56 m/s)	0.06 J
100 mm	58.84 km/h (16.35 m/s)	0.13 J

Magnetic elements are delicate – a strong collision with metal can result in shattering. Pay attention to connection velocity – a neodymium left loose becomes dangerous. Impact energy can destroy the magnet or injury to fingers. Hold the magnet firmly during mounting so it doesn't hit with great force against the metal. A collision at high speed means shattering of the magnet. Wear safety glasses when playing with large magnets.

Table 9: Surface protection spec
MW 4x10 / 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. Moisture resistance is crucial for installations in bathrooms or outdoors.

Table 10: Electrical data (P_c)
MW 4x10 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	864 Mx	8.6 µWb
P_c Coefficient	1.31	High (Stable)

Flux value passing through the magnet pole. Essential parameter for generator designers and motors. P_c value determines the working geometry.

Table 11: Physics of underwater searching
MW 4x10 / N38

Environment	Effective steel pull	Effect
Air (land)	0.32 kg	Standard
Water (riverbed)	0.37 kg (+0.05 kg buoyancy gain)	+14.5%

Rust risk: Remember to wipe the magnet thoroughly after removing it from water and apply a protective layer (e.g., oil) to avoid corrosion.

Contrary to myths, water does not block the magnetic field. 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)

*Warning: On a vertical surface, the magnet retains just approx. 20-30% of its nominal pull.

2. Steel thickness impact

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

3. Temperature resistance

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

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 1.31

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 specification and ecology

Chemical composition

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: 010075-2026

Quick Unit Converter

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Force in kg

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MW 100x30 / N38 - cylindrical magnet

650.01 ZŁ brutto / pcs

The presented product is an extremely powerful cylinder magnet, manufactured from durable NdFeB material, which, at dimensions of Ø4x10 mm, guarantees optimal power. This specific item boasts high dimensional repeatability and industrial build quality, making it an ideal solution for the most demanding engineers and designers. As a magnetic rod with impressive force (approx. 0.32 kg), this product is in stock from our European logistics center, ensuring rapid order fulfillment. Moreover, its triple-layer Ni-Cu-Ni coating secures it against corrosion in standard operating conditions, ensuring an aesthetic appearance and durability for years.

This model is ideal for building generators, advanced sensors, and efficient magnetic separators, where field concentration on a small surface counts. Thanks to the pull force of 3.16 N with a weight of only 0.94 g, this cylindrical magnet 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., 4.1 mm) using two-component epoxy glues. To ensure stability in industry, anaerobic resins are used, which do not react with the nickel coating and fill the gap, guaranteeing durability of the connection.

Grade N38 is the most frequently chosen standard for professional neodymium magnets, offering a great economic balance and high resistance to demagnetization. If you need even stronger magnets in the same volume (Ø4x10), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard available off-the-shelf in our warehouse.

This model is characterized by dimensions Ø4x10 mm, which, at a weight of 0.94 g, makes it an element with impressive magnetic energy density. The key parameter here is the holding force amounting to approximately 0.32 kg (force ~3.16 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 4 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 through the diameter if your project requires it.

Advantages and disadvantages of rare earth magnets.

Benefits

Apart from their superior magnetic energy, neodymium magnets have these key benefits:

Their power remains stable, and after approximately 10 years it drops only by ~1% (according to research),
Magnets perfectly defend themselves against loss of magnetization caused by ambient magnetic noise,
By using a reflective layer of gold, the element presents an modern look,
The surface of neodymium magnets generates a concentrated magnetic field – this is a key feature,
Due to their durability and thermal resistance, neodymium magnets are capable of operate (depending on the form) even at high temperatures reaching 230°C or more...
Due to the ability of accurate forming and customization to specialized projects, neodymium magnets can be manufactured in a wide range of geometric configurations, which expands the range of possible applications,
Significant place in future technologies – they are used in data components, motor assemblies, precision medical tools, as well as technologically advanced constructions.
Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in tiny dimensions, which makes them useful in small systems

Limitations

Disadvantages of NdFeB magnets:

At strong impacts they can crack, therefore we advise placing them in special holders. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
When exposed to high temperature, neodymium magnets experience a drop in strength. 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
Limited ability of creating nuts in the magnet and complicated shapes - preferred is cover - magnetic holder.
Health risk resulting from small fragments of magnets pose a threat, if swallowed, which gains importance in the context of child safety. Additionally, tiny parts of these magnets can be problematic in diagnostics medical in case of swallowing.
High unit price – neodymium magnets cost more than other types of magnets (e.g. ferrite), which can limit application in large quantities

Pull force analysis

Highest magnetic holding force – what affects it?

Information about lifting capacity was determined for the most favorable conditions, including:

with the application of a sheet made of special test steel, guaranteeing full magnetic saturation
possessing a massiveness of min. 10 mm to avoid saturation
with a plane cleaned and smooth
without the slightest air gap between the magnet and steel
for force acting at a right angle (pull-off, not shear)
at room temperature

Determinants of practical lifting force of a magnet

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

Space between magnet and steel – every millimeter of separation (caused e.g. by veneer or unevenness) significantly weakens the pulling force, often by half at just 0.5 mm.
Loading method – declared lifting capacity refers to pulling vertically. When slipping, the magnet holds significantly lower power (typically approx. 20-30% of nominal force).
Metal thickness – the thinner the sheet, the weaker the hold. Magnetic flux penetrates through instead of generating force.
Metal type – different alloys reacts the same. Alloy additives weaken the interaction with the magnet.
Surface structure – the more even the plate, the better the adhesion and higher the lifting capacity. Roughness acts like micro-gaps.
Temperature influence – high temperature weakens pulling force. Exceeding the limit temperature can permanently demagnetize the magnet.

Lifting capacity testing was conducted on a smooth plate of optimal thickness, under perpendicular forces, whereas under attempts to slide the magnet the load capacity is reduced by as much as 5 times. In addition, even a minimal clearance between the magnet and the plate reduces the lifting capacity.

Safety rules for work with neodymium magnets

Crushing force

Big blocks can crush fingers instantly. Under no circumstances put your hand betwixt two attracting surfaces.

Handling rules

Exercise caution. Rare earth magnets attract from a distance and connect with huge force, often quicker than you can move away.

GPS and phone interference

An intense magnetic field negatively affects the operation of magnetometers in phones and GPS navigation. Do not bring magnets close to a smartphone to avoid damaging the sensors.

Medical implants

People with a ICD have to keep an safe separation from magnets. The magnetism can disrupt the operation of the life-saving device.

Danger to the youngest

These products are not suitable for play. Swallowing multiple magnets can lead to them pinching intestinal walls, which poses a critical condition and necessitates immediate surgery.

Magnetic media

Powerful magnetic fields can erase data on payment cards, hard drives, and other magnetic media. Stay away of min. 10 cm.

Fragile material

Beware of splinters. Magnets can explode upon violent connection, ejecting shards into the air. Eye protection is mandatory.

Maximum temperature

Monitor thermal conditions. Exposing the magnet above 80 degrees Celsius will destroy its properties and pulling force.

Metal Allergy

Certain individuals have a hypersensitivity to nickel, which is the common plating for neodymium magnets. Prolonged contact can result in a rash. We suggest use safety gloves.

Flammability

Fire warning: Rare earth powder is explosive. Do not process magnets in home conditions as this risks ignition.

Important! Learn more about risks in the article: Magnet Safety Guide.

MW 4x10 / N38 - cylindrical magnet

Physical properties - MW 4x10 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Engineering simulation of the assembly - report

Table 1: Static pull force (force vs distance) - power drop MW 4x10 / N38

Table 2: Sliding load (wall) MW 4x10 / N38

Table 3: Vertical assembly (sliding) - vertical pull MW 4x10 / N38

Table 4: Steel thickness (substrate influence) - power losses MW 4x10 / N38

Table 5: Thermal resistance (stability) - thermal limit MW 4x10 / N38

Table 6: Magnet-Magnet interaction (attraction) - forces in the system MW 4x10 / N38

Table 7: Hazards (electronics) - precautionary measures MW 4x10 / N38

Table 8: Dynamics (kinetic energy) - warning MW 4x10 / N38

Table 9: Surface protection spec MW 4x10 / N38

Table 10: Electrical data (Pc) MW 4x10 / N38

Table 11: Physics of underwater searching MW 4x10 / N38

1. Wall mount (shear)

2. Steel thickness impact

3. Temperature resistance

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

Chemical composition

Ecology and recycling (GPSR)

Pulling force

Magnetic Induction

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Advantages and disadvantages of rare earth magnets.

Benefits

Limitations

Pull force analysis

Highest magnetic holding force – what affects it?

Determinants of practical lifting force of a magnet

Safety rules for work with neodymium magnets

Crushing force

Handling rules

GPS and phone interference

Medical implants

Danger to the youngest

Magnetic media

Fragile material

Maximum temperature

Metal Allergy

Flammability

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (force vs distance) - power drop
MW 4x10 / N38

Table 2: Sliding load (wall)
MW 4x10 / N38

Table 3: Vertical assembly (sliding) - vertical pull
MW 4x10 / N38

Table 4: Steel thickness (substrate influence) - power losses
MW 4x10 / N38

Table 5: Thermal resistance (stability) - thermal limit
MW 4x10 / N38

Table 6: Magnet-Magnet interaction (attraction) - forces in the system
MW 4x10 / N38

Table 7: Hazards (electronics) - precautionary measures
MW 4x10 / N38

Table 8: Dynamics (kinetic energy) - warning
MW 4x10 / N38

Table 9: Surface protection spec
MW 4x10 / N38

Table 10: Electrical data (P_c)
MW 4x10 / N38

Table 11: Physics of underwater searching
MW 4x10 / N38