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MW 4x4 / 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 010076

GTIN/EAN: 5906301810759

5.00

Diameter Ø

4 mm [±0,1 mm]

Height

4 mm [±0,1 mm]

Weight

0.38 g

Magnetization Direction

↑ axial

Load capacity

0.51 kg / 4.96 N

Magnetic Induction

552.79 mT / 5528 Gs

Coating

[NiCuNi] Nickel

check technical specifications »

0.406 ZŁ with VAT / pcs + price for transport

0.330 ZŁ net + 23% VAT / pcs

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Technical of the product - MW 4x4 / N38 - cylindrical magnet

Specification / characteristics - MW 4x4 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010076
GTIN/EAN	5906301810759
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	4 mm [±0,1 mm]
Weight	0.38 g
Magnetization Direction	↑ axial
Load capacity ~ ?	0.51 kg / 4.96 N
Magnetic Induction ~ ?	552.79 mT / 5528 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 4x4 / 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 simulation of the assembly - report

Presented values represent the outcome of a mathematical analysis. Results rely on algorithms for the class Nd₂Fe₁₄B. Real-world parameters may differ. Treat these calculations as a preliminary roadmap for designers.

Table 1: Static pull force (force vs distance) - characteristics
MW 4x4 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	5517 Gs 551.7 mT	0.51 kg / 1.12 pounds 510.0 g / 5.0 N	low risk
1 mm	2984 Gs 298.4 mT	0.15 kg / 0.33 pounds 149.2 g / 1.5 N	low risk
2 mm	1498 Gs 149.8 mT	0.04 kg / 0.08 pounds 37.6 g / 0.4 N	low risk
3 mm	803 Gs 80.3 mT	0.01 kg / 0.02 pounds 10.8 g / 0.1 N	low risk
5 mm	296 Gs 29.6 mT	0.00 kg / 0.00 pounds 1.5 g / 0.0 N	low risk
10 mm	58 Gs 5.8 mT	0.00 kg / 0.00 pounds 0.1 g / 0.0 N	low risk
15 mm	20 Gs 2.0 mT	0.00 kg / 0.00 pounds 0.0 g / 0.0 N	low risk
20 mm	9 Gs 0.9 mT	0.00 kg / 0.00 pounds 0.0 g / 0.0 N	low risk
30 mm	3 Gs 0.3 mT	0.00 kg / 0.00 pounds 0.0 g / 0.0 N	low risk
50 mm	1 Gs 0.1 mT	0.00 kg / 0.00 pounds 0.0 g / 0.0 N	low risk

Magnetic force decreases drastically with every subsequent millimeter of spacing. Note that even a microscopic distance (e.g., dirt, varnish, veneer) significantly diminishes the holding power. Neodymiums hold most effectively during direct contact; air break nullifies the power. Observe how flashily the parameters fall, when the product does not adhere tightly to the metal substrate. When designing the assembly, discard unnecessary gaps.

Table 2: Vertical force (vertical surface)
MW 4x4 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	0.10 kg / 0.22 pounds 102.0 g / 1.0 N
1 mm	Stal (~0.2)	0.03 kg / 0.07 pounds 30.0 g / 0.3 N
2 mm	Stal (~0.2)	0.01 kg / 0.02 pounds 8.0 g / 0.1 N
3 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 2.0 g / 0.0 N
5 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 0.0 g / 0.0 N
10 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 0.0 g / 0.0 N
15 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 0.0 g / 0.0 N
20 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 0.0 g / 0.0 N
30 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 0.0 g / 0.0 N
50 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 0.0 g / 0.0 N

The table below presents the theoretical weight limit necessary to initiate the sliding of the magnet vertically on a upright steel wall (assuming standard friction). This value is relative to the air gap between the magnet and the surface.

Table 3: Vertical assembly (sliding) - vertical pull
MW 4x4 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	0.15 kg / 0.34 pounds 153.0 g / 1.5 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.10 kg / 0.22 pounds 102.0 g / 1.0 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.05 kg / 0.11 pounds 51.0 g / 0.5 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	0.26 kg / 0.56 pounds 255.0 g / 2.5 N

When placing a holder on a upright plane (e.g., a board), it will maintain barely about 20%-30% of its nominal power. Gravity as well as a weak degree of grip mean that magnets slide down easier than they pop off the substrate. Want to create a vertical fastening? Consider that the shear force is noticeably lower than the perpendicular breakaway force. On a slippery surface, the magnet will slip down under a noticeably lighter load. Using a rubber coating can significantly increase the grip.

Table 4: Material efficiency (substrate influence) - power losses
MW 4x4 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.05 kg / 0.11 pounds 51.0 g / 0.5 N
1 mm	25%	0.13 kg / 0.28 pounds 127.5 g / 1.3 N
2 mm	50%	0.26 kg / 0.56 pounds 255.0 g / 2.5 N
3 mm	75%	0.38 kg / 0.84 pounds 382.5 g / 3.8 N
5 mm	100%	0.51 kg / 1.12 pounds 510.0 g / 5.0 N
10 mm	100%	0.51 kg / 1.12 pounds 510.0 g / 5.0 N
11 mm	100%	0.51 kg / 1.12 pounds 510.0 g / 5.0 N
12 mm	100%	0.51 kg / 1.12 pounds 510.0 g / 5.0 N

A thin sheet is incapable of focus the entire magnetic field, which squanders power of the magnet. If you install a neodymium to a weak sheet, the magnetism will pass right through and the holding will be smaller. To achieve full efficiency of this magnet's power, you require a sufficiently solid element of steel. The material oversaturation causes that on delicate walls (e.g., appliance housings), the holder shows lower pull force. We suggest choosing the steel thickness based on the following data.

Table 5: Working in heat (material behavior) - resistance threshold
MW 4x4 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	0.51 kg / 1.12 pounds 510.0 g / 5.0 N	OK
40 °C	-2.2%	0.50 kg / 1.10 pounds 498.8 g / 4.9 N	OK
60 °C	-4.4%	0.49 kg / 1.07 pounds 487.6 g / 4.8 N	OK
80 °C	-6.6%	0.48 kg / 1.05 pounds 476.3 g / 4.7 N
100 °C	-28.8%	0.36 kg / 0.80 pounds 363.1 g / 3.6 N

Ordinary NdFeB products lose parameters after exceeding the maximum temperature. Avoid high temperatures – excessive heat can irreversibly destroy this product. With every degree above norm, the neodymium's force temporarily decreases. Do not use this product in hot environments exceeding its working range. Too high temperature will cause permanent loss of magnetism.

*Engineering note: Temperature resistance depends not only on the material grade, but also on the magnet's shape. Thin magnets (low permeance coefficient) are more susceptible to demagnetization at lower temperatures than long magnets. The danger warning in the table signals a risk of irreversible loss for this specific geometry.

Table 6: Magnet-Magnet interaction (attraction) - field range
MW 4x4 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Strength (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	2.36 kg / 5.20 pounds 5 984 Gs	0.35 kg / 0.78 pounds 354 g / 3.5 N	N/A
1 mm	1.34 kg / 2.96 pounds 8 324 Gs	0.20 kg / 0.44 pounds 201 g / 2.0 N	1.21 kg / 2.66 pounds ~0 Gs
2 mm	0.69 kg / 1.52 pounds 5 968 Gs	0.10 kg / 0.23 pounds 103 g / 1.0 N	0.62 kg / 1.37 pounds ~0 Gs
3 mm	0.34 kg / 0.76 pounds 4 213 Gs	0.05 kg / 0.11 pounds 52 g / 0.5 N	0.31 kg / 0.68 pounds ~0 Gs
5 mm	0.09 kg / 0.20 pounds 2 169 Gs	0.01 kg / 0.03 pounds 14 g / 0.1 N	0.08 kg / 0.18 pounds ~0 Gs
10 mm	0.01 kg / 0.01 pounds 592 Gs	0.00 kg / 0.00 pounds 1 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs
20 mm	0.00 kg / 0.00 pounds 116 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs
50 mm	0.00 kg / 0.00 pounds 10 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs
60 mm	0.00 kg / 0.00 pounds 6 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs
70 mm	0.00 kg / 0.00 pounds 4 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs
80 mm	0.00 kg / 0.00 pounds 3 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs
90 mm	0.00 kg / 0.00 pounds 2 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs
100 mm	0.00 kg / 0.00 pounds 1 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs

Two magnetic products interact from a significantly greater distance than a magnet and sheet combination. Such a system of magnet-to-magnet generates a stronger field and a further horizon of performance. Planning to create a strong closure? Utilize two neodymiums instead of one magnet and a steel. Exercise caution that when connecting a pair of magnets, the collision energy is massive. The repulsion force is marginally weaker than the attraction, but still impressive.
*Flux density between like poles is approximately ~0 Gs at the geometric center of the gap (due to field cancellation).
Important: Estimates demonstrate sliding force of a pair of matching magnets (friction ~0.15 for Ni-Ni coating).

Table 7: Safety (HSE) (implants) - warnings
MW 4x4 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	3.0 cm
Hearing aid	10 Gs (1.0 mT)	2.0 cm
Timepiece	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 real danger to electronics as well as pacemakers. These magnets produce a field that destroys function of digital equipment. Be aware: the invisible magnetic field penetrates the body and glass. Increased vigilance must be taken by people with cochlear implants and drug dispensers. Influence will be felt by: mechanical watches, car keys, speakers, and screens. Avoid contact with magnetic cards, hard drives, or precise measuring instruments.

Table 8: Dynamics (kinetic energy) - collision effects
MW 4x4 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	36.95 km/h (10.26 m/s)	0.02 J
30 mm	63.99 km/h (17.78 m/s)	0.06 J
50 mm	82.62 km/h (22.95 m/s)	0.10 J
100 mm	116.84 km/h (32.45 m/s)	0.20 J

NdFeB products are very brittle – a collision with steel causes immediate chipping. Control the attraction moment – a neodymium left loose speeds with massive force. Kinetic force can destroy the magnet or dangerous crushing to skin. Be sure to control the product during installation so it doesn't slam with momentum 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: Coating parameters (durability)
MW 4x4 / 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. Improper coating selection is the most common cause of magnet failure over time.

Table 10: Electrical data (P_c)
MW 4x4 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	717 Mx	7.2 µWb
P_c Coefficient	0.89	High (Stable)

Total magnetic flux passing through the magnet pole. Key data in coil applications as well as sensors. The P_c coefficient determines the working geometry.

Table 11: Underwater work (magnet fishing)
MW 4x4 / N38

Environment	Effective steel pull	Effect
Air (land)	0.51 kg	Standard
Water (riverbed)	0.58 kg (+0.07 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!

In water, the magnet feels stronger thanks to Archimedes' principle. Note: for permanent underwater work, we recommend magnets with an anti-corrosive (epoxy) coating.

1. Wall mount (shear)

*Warning: On a vertical surface, the magnet retains only a fraction of its max power.

2. Plate thickness effect

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

3. Temperature resistance

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

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 0.89

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

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: 010076-2026

Measurement Calculator

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This product is a very strong rod magnet, manufactured from advanced NdFeB material, which, at dimensions of Ø4x4 mm, guarantees the highest energy density. The MW 4x4 / N38 model features high dimensional repeatability and industrial build quality, making it an excellent solution for professional engineers and designers. As a cylindrical magnet with impressive force (approx. 0.51 kg), this product is available off-the-shelf from our European logistics center, ensuring rapid order fulfillment. Furthermore, its Ni-Cu-Ni coating secures it against corrosion in typical operating conditions, guaranteeing an aesthetic appearance and durability for years.

This model is created for building electric motors, advanced sensors, and efficient magnetic separators, where maximum induction on a small surface counts. Thanks to the pull force of 4.96 N with a weight of only 0.38 g, this cylindrical magnet is indispensable in electronics and wherever every gram matters.

Since our magnets have a very precise dimensions, the recommended way is to glue them into holes with a slightly larger diameter (e.g., 4.1 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 high repeatability of the connection.

Magnets N38 are suitable for the majority of applications in modeling and machine building, where excessive miniaturization with maximum force is not required. If you need even stronger magnets in the same volume (Ø4x4), 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 4 mm and height 4 mm. The key parameter here is the holding force amounting to approximately 0.51 kg (force ~4.96 N), which, with such compact 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.

This cylinder is magnetized axially (along the height of 4 mm), which means that the N and S poles are located on the flat, circular surfaces. 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.

Pros and cons of rare earth magnets.

Benefits

In addition to their magnetic efficiency, neodymium magnets provide the following advantages:

They retain attractive force for around 10 years – the loss is just ~1% (according to analyses),
They feature excellent resistance to magnetic field loss due to opposing magnetic fields,
A magnet with a metallic silver surface has an effective appearance,
The surface of neodymium magnets generates a maximum magnetic field – this is a distinguishing feature,
Thanks to resistance to high temperature, they are capable of working (depending on the shape) even at temperatures up to 230°C and higher...
Thanks to versatility in designing and the capacity to modify to specific needs,
Versatile presence in electronics industry – they serve a role in mass storage devices, electromotive mechanisms, diagnostic systems, also industrial machines.
Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in compact dimensions, which allows their use in compact constructions

Weaknesses

Disadvantages of neodymium magnets:

To avoid cracks upon strong impacts, we recommend using special steel housings. Such a solution protects the magnet and simultaneously increases its durability.
Neodymium magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop of strength (a factor is the shape and dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are extremely resistant to heat
They oxidize in a humid environment - during use outdoors we advise using waterproof magnets e.g. in rubber, plastic
Limited ability of creating nuts in the magnet and complicated forms - recommended is casing - mounting mechanism.
Possible danger to health – tiny shards of magnets pose a threat, when accidentally swallowed, which becomes key in the context of child safety. Additionally, small elements of these devices can disrupt the diagnostic process medical after entering the body.
Higher cost of purchase is one of the disadvantages compared to ceramic magnets, especially in budget applications

Pull force analysis

Optimal lifting capacity of a neodymium magnet – what it depends on?

The specified lifting capacity concerns the maximum value, measured under optimal environment, meaning:

on a plate made of structural steel, optimally conducting the magnetic field
possessing a massiveness of minimum 10 mm to ensure full flux closure
characterized by lack of roughness
without any insulating layer between the magnet and steel
for force applied at a right angle (in the magnet axis)
at ambient temperature approx. 20 degrees Celsius

Lifting capacity in real conditions – factors

Please note that the working load may be lower depending on elements below, in order of importance:

Gap between magnet and steel – every millimeter of separation (caused e.g. by veneer or dirt) drastically reduces the magnet efficiency, often by half at just 0.5 mm.
Pull-off angle – note that the magnet has greatest strength perpendicularly. Under shear forces, the capacity drops drastically, often to levels of 20-30% of the nominal value.
Steel thickness – too thin steel causes magnetic saturation, causing part of the power to be wasted to the other side.
Steel grade – the best choice is high-permeability steel. Cast iron may attract less.
Base smoothness – the more even the surface, the better the adhesion and stronger the hold. Unevenness creates an air distance.
Temperature influence – high temperature reduces pulling force. Too high temperature can permanently damage the magnet.

Lifting capacity testing was performed on plates with a smooth surface of suitable thickness, under perpendicular forces, whereas under attempts to slide the magnet the holding force is lower. Additionally, even a slight gap between the magnet and the plate decreases the lifting capacity.

Warnings

Material brittleness

Beware of splinters. Magnets can fracture upon uncontrolled impact, launching sharp fragments into the air. Wear goggles.

Medical implants

Life threat: Neodymium magnets can turn off heart devices and defibrillators. Do not approach if you have medical devices.

Do not give to children

Only for adults. Tiny parts pose a choking risk, leading to severe trauma. Keep away from children and animals.

Allergic reactions

It is widely known that the nickel plating (the usual finish) is a strong allergen. If you have an allergy, avoid touching magnets with bare hands and select encased magnets.

Keep away from computers

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

Finger safety

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

Respect the power

Use magnets consciously. Their powerful strength can surprise even professionals. Plan your moves and respect their force.

Keep away from electronics

A strong magnetic field interferes with the functioning of magnetometers in phones and navigation systems. Do not bring magnets close to a smartphone to avoid breaking the sensors.

Operating temperature

Regular neodymium magnets (N-type) lose magnetization when the temperature exceeds 80°C. This process is irreversible.

Flammability

Dust produced during grinding of magnets is combustible. Do not drill into magnets without proper cooling and knowledge.

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

MW 4x4 / N38 - cylindrical magnet

Technical of the product - MW 4x4 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Technical simulation of the assembly - report

Table 1: Static pull force (force vs distance) - characteristics MW 4x4 / N38

Table 2: Vertical force (vertical surface) MW 4x4 / N38

Table 3: Vertical assembly (sliding) - vertical pull MW 4x4 / N38

Table 4: Material efficiency (substrate influence) - power losses MW 4x4 / N38

Table 5: Working in heat (material behavior) - resistance threshold MW 4x4 / N38

Table 6: Magnet-Magnet interaction (attraction) - field range MW 4x4 / N38

Table 7: Safety (HSE) (implants) - warnings MW 4x4 / N38

Table 8: Dynamics (kinetic energy) - collision effects MW 4x4 / N38

Table 9: Coating parameters (durability) MW 4x4 / N38

Table 10: Electrical data (Pc) MW 4x4 / N38

Table 11: Underwater work (magnet fishing) MW 4x4 / N38

1. Wall mount (shear)

2. Plate thickness effect

3. Temperature resistance

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

Material specification

Ecology and recycling (GPSR)

Pulling force

Field Strength

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Pros and cons of rare earth magnets.

Benefits

Weaknesses

Pull force analysis

Optimal lifting capacity of a neodymium magnet – what it depends on?

Lifting capacity in real conditions – factors

Warnings

Material brittleness

Medical implants

Do not give to children

Allergic reactions

Keep away from computers

Finger safety

Respect the power

Keep away from electronics

Operating temperature

Flammability

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (force vs distance) - characteristics
MW 4x4 / N38

Table 2: Vertical force (vertical surface)
MW 4x4 / N38

Table 3: Vertical assembly (sliding) - vertical pull
MW 4x4 / N38

Table 4: Material efficiency (substrate influence) - power losses
MW 4x4 / N38

Table 5: Working in heat (material behavior) - resistance threshold
MW 4x4 / N38

Table 6: Magnet-Magnet interaction (attraction) - field range
MW 4x4 / N38

Table 7: Safety (HSE) (implants) - warnings
MW 4x4 / N38

Table 8: Dynamics (kinetic energy) - collision effects
MW 4x4 / N38

Table 9: Coating parameters (durability)
MW 4x4 / N38

Table 10: Electrical data (P_c)
MW 4x4 / N38

Table 11: Underwater work (magnet fishing)
MW 4x4 / N38