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MW 5x4 / 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 010089

GTIN/EAN: 5906301810889

5.00

Diameter Ø

5 mm [±0,1 mm]

Height

4 mm [±0,1 mm]

Weight

0.59 g

Magnetization Direction

↑ axial

Load capacity

0.84 kg / 8.26 N

Magnetic Induction

524.45 mT / 5244 Gs

Coating

[NiCuNi] Nickel

view technical specifications »

0.369 ZŁ with VAT / pcs + price for transport

0.300 ZŁ net + 23% VAT / pcs

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Technical specification - MW 5x4 / N38 - cylindrical magnet

Specification / characteristics - MW 5x4 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010089
GTIN/EAN	5906301810889
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	5 mm [±0,1 mm]
Height	4 mm [±0,1 mm]
Weight	0.59 g
Magnetization Direction	↑ axial
Load capacity ~ ?	0.84 kg / 8.26 N
Magnetic Induction ~ ?	524.45 mT / 5244 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 5x4 / 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 modeling of the assembly - report

Presented information constitute the outcome of a engineering calculation. Results rely on algorithms for the material Nd₂Fe₁₄B. Operational parameters might slightly differ from theoretical values. Use these data as a preliminary roadmap during assembly planning.

Table 1: Static pull force (force vs distance) - characteristics
MW 5x4 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	5236 Gs 523.6 mT	0.84 kg / 1.85 pounds 840.0 g / 8.2 N	low risk
1 mm	3243 Gs 324.3 mT	0.32 kg / 0.71 pounds 322.1 g / 3.2 N	low risk
2 mm	1850 Gs 185.0 mT	0.10 kg / 0.23 pounds 104.8 g / 1.0 N	low risk
3 mm	1076 Gs 107.6 mT	0.04 kg / 0.08 pounds 35.5 g / 0.3 N	low risk
5 mm	428 Gs 42.8 mT	0.01 kg / 0.01 pounds 5.6 g / 0.1 N	low risk
10 mm	89 Gs 8.9 mT	0.00 kg / 0.00 pounds 0.2 g / 0.0 N	low risk
15 mm	31 Gs 3.1 mT	0.00 kg / 0.00 pounds 0.0 g / 0.0 N	low risk
20 mm	15 Gs 1.5 mT	0.00 kg / 0.00 pounds 0.0 g / 0.0 N	low risk
30 mm	5 Gs 0.5 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

Pulling power decreases drastically with every mm of gap. Remember that even the smallest gap (e.g., contamination, varnish, rust) significantly weakens the grip. Magnets operate most effectively during direct contact; distance nullifies the power. Notice how flashily the load capacity fall, when the magnet does not adhere directly to the metal substrate. When planning the arrangement, eliminate additional spacers.

Table 2: Shear load (vertical surface)
MW 5x4 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	0.17 kg / 0.37 pounds 168.0 g / 1.6 N
1 mm	Stal (~0.2)	0.06 kg / 0.14 pounds 64.0 g / 0.6 N
2 mm	Stal (~0.2)	0.02 kg / 0.04 pounds 20.0 g / 0.2 N
3 mm	Stal (~0.2)	0.01 kg / 0.02 pounds 8.0 g / 0.1 N
5 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 2.0 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

This section indicates the estimated shear load required to initiate the shifting of the magnet down on a vertical steel wall (considering standard friction). The holding force varies with the gap size between the magnet and the surface.

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces
MW 5x4 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	0.25 kg / 0.56 pounds 252.0 g / 2.5 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.17 kg / 0.37 pounds 168.0 g / 1.6 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.08 kg / 0.19 pounds 84.0 g / 0.8 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	0.42 kg / 0.93 pounds 420.0 g / 4.1 N

When hanging a magnet on a upright surface (e.g., a car body), it will maintain only about 20%-30% of nominal attraction strength. Gravity as well as a low friction coefficient mean that magnets slip faster than they pull off. Designing a vertical fastening? Remember that the sliding force is significantly lower than the maximum static pull force. On a smooth steel, the element will slide down under a much lighter load. Application of an anti-slip coating can drastically raise the stability.

Table 4: Steel thickness (saturation) - power losses
MW 5x4 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.08 kg / 0.19 pounds 84.0 g / 0.8 N
1 mm	25%	0.21 kg / 0.46 pounds 210.0 g / 2.1 N
2 mm	50%	0.42 kg / 0.93 pounds 420.0 g / 4.1 N
3 mm	75%	0.63 kg / 1.39 pounds 630.0 g / 6.2 N
5 mm	100%	0.84 kg / 1.85 pounds 840.0 g / 8.2 N
10 mm	100%	0.84 kg / 1.85 pounds 840.0 g / 8.2 N
11 mm	100%	0.84 kg / 1.85 pounds 840.0 g / 8.2 N
12 mm	100%	0.84 kg / 1.85 pounds 840.0 g / 8.2 N

A too thin steel is incapable of focus the entire magnetic field, which squanders power of the holder. Should you install a neodymium to a thin surface, the magnetism will pass right through and the attraction force will be weaker. To utilize full efficiency of this magnet's potential, you need a suitably thick element of steel. The saturation phenomenon means that on delicate walls (e.g., car bodies), the magnet holds weaker. We suggest choosing the steel cross-section according to the table below.

Table 5: Working in heat (material behavior) - thermal limit
MW 5x4 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	0.84 kg / 1.85 pounds 840.0 g / 8.2 N	OK
40 °C	-2.2%	0.82 kg / 1.81 pounds 821.5 g / 8.1 N	OK
60 °C	-4.4%	0.80 kg / 1.77 pounds 803.0 g / 7.9 N	OK
80 °C	-6.6%	0.78 kg / 1.73 pounds 784.6 g / 7.7 N
100 °C	-28.8%	0.60 kg / 1.32 pounds 598.1 g / 5.9 N

Ordinary NdFeB products irreversibly lose power past the thermal threshold. Avoid high temperatures – heat can irreversibly demagnetize this product. With every degree above norm, the neodymium's capacity briefly decreases. Do not use this magnet in hot environments exceeding its safe range. Too high temperature will cause destruction of magnetism.

*Engineering note: Thermal stability depends not only on the material grade, as well as the dimension ratios. Flat magnets (pancake types) risk losing magnetic properties sooner than taller cylinders. The danger warning in the table points to a risk of irreversible loss for this specific geometry.

Table 6: Magnet-Magnet interaction (attraction) - forces in the system
MW 5x4 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	3.32 kg / 7.32 pounds 5 894 Gs	0.50 kg / 1.10 pounds 498 g / 4.9 N	N/A
1 mm	2.14 kg / 4.72 pounds 8 408 Gs	0.32 kg / 0.71 pounds 321 g / 3.1 N	1.93 kg / 4.24 pounds ~0 Gs
2 mm	1.27 kg / 2.81 pounds 6 486 Gs	0.19 kg / 0.42 pounds 191 g / 1.9 N	1.15 kg / 2.53 pounds ~0 Gs
3 mm	0.73 kg / 1.61 pounds 4 909 Gs	0.11 kg / 0.24 pounds 109 g / 1.1 N	0.66 kg / 1.45 pounds ~0 Gs
5 mm	0.24 kg / 0.53 pounds 2 805 Gs	0.04 kg / 0.08 pounds 36 g / 0.4 N	0.21 kg / 0.47 pounds ~0 Gs
10 mm	0.02 kg / 0.05 pounds 857 Gs	0.00 kg / 0.01 pounds 3 g / 0.0 N	0.02 kg / 0.04 pounds ~0 Gs
20 mm	0.00 kg / 0.00 pounds 177 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 16 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 9 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 6 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 4 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 3 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 2 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs

Two strong neodymiums interact from a wider radius than a neodymium and metal setup. Such a system of two magnets creates a more powerful interaction and a larger range of operation. Designing a powerful holder? Apply two magnets instead of one magnet and a striker plate. Exercise caution that when connecting a pair of magnets, the pinch force is extreme. The repulsion force is slightly lower than the connection force, but still large.
*Flux density for N-N configuration reaches ~0 Gs at the geometric center of the gap (due to field cancellation).
Note: Results refer to sliding force of dual matching magnets (friction ~0.15 for Ni-Ni plating).

Table 7: Safety (HSE) (implants) - warnings
MW 5x4 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	3.0 cm
Hearing aid	10 Gs (1.0 mT)	2.5 cm
Timepiece	20 Gs (2.0 mT)	2.0 cm
Phone / Smartphone	40 Gs (4.0 mT)	1.5 cm
Car key	50 Gs (5.0 mT)	1.5 cm
Payment card	400 Gs (40.0 mT)	1.0 cm
HDD hard drive	600 Gs (60.0 mT)	0.5 cm

Powerful magnet radiation poses a serious hazard to electronic devices and medical implants. These NdFeB products generate a flux that prevents correct functioning of digital equipment. Remember: the unseen radiation acts through matter and housings. Special caution must be exercised by people with cochlear implants and drug dispensers. Influence will be felt by: mechanical watches, car keys, speakers, and displays. Do not place the magnet near cards, HDD media, or sensitive navigation tools.

Table 8: Impact energy (kinetic energy) - collision effects
MW 5x4 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	38.06 km/h (10.57 m/s)	0.03 J
30 mm	65.91 km/h (18.31 m/s)	0.10 J
50 mm	85.09 km/h (23.64 m/s)	0.16 J
100 mm	120.34 km/h (33.43 m/s)	0.33 J

NdFeB products are delicate – a violent impact against metal causes immediate chipping. Control the attraction moment – a neodymium left loose speeds with massive force. Kinetic force can cause material chips or injury to skin. Be sure to control the product during installation so it doesn't slam with momentum against the metal. A collision at high speed almost guarantees destruction of the neodymium. Use safety goggles when working with powerful specimens.

Table 9: Anti-corrosion coating durability
MW 5x4 / 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)

For outdoor applications, an epoxy coating is required; standard nickel is intended for indoor use. Note the thickness of the protective layer.

Table 10: Construction data (P_c)
MW 5x4 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	1 046 Mx	10.5 µWb
P_c Coefficient	0.79	High (Stable)

Total magnetic flux emitted by the pole surface. Key data for generator designers as well as sensors. P_c value determines the working geometry.

Table 11: Physics of underwater searching
MW 5x4 / N38

Environment	Effective steel pull	Effect
Air (land)	0.84 kg	Standard
Water (riverbed)	0.96 kg (+0.12 kg buoyancy gain)	+14.5%

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

Water displaces steel, making heavy objects slightly lighter. Buoyancy helps in lifting finds.

1. Wall mount (shear)

*Caution: On a vertical wall, the magnet retains merely a fraction of its max power.

2. Steel thickness impact

*Thin steel (e.g. computer case) severely 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) = 0.79

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%

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: 010089-2026

Quick Unit Converter

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Newtons (N)

Force in lbs

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Gauss (Gs)

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This product is a very strong rod magnet, made from modern NdFeB material, which, with dimensions of Ø5x4 mm, guarantees optimal power. The MW 5x4 / N38 model is characterized by an accuracy of ±0.1mm and professional build quality, making it a perfect solution for professional engineers and designers. As a magnetic rod with impressive force (approx. 0.84 kg), this product is in stock from our European logistics center, ensuring quick order fulfillment. Furthermore, its Ni-Cu-Ni coating effectively protects it against corrosion in typical operating conditions, ensuring an aesthetic appearance and durability for years.

It successfully proves itself in modeling, advanced robotics, and broadly understood industry, serving as a positioning or actuating element. Thanks to the high power of 8.26 N with a weight of only 0.59 g, this cylindrical magnet is indispensable in miniature devices and wherever low weight is crucial.

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., 5.1 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 suitable for 90% 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 (Ø5x4), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard in continuous sale in our store.

This model is characterized by dimensions Ø5x4 mm, which, at a weight of 0.59 g, makes it an element with impressive magnetic energy density. The key parameter here is the holding force amounting to approximately 0.84 kg (force ~8.26 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 5 mm. Such an arrangement is standard when connecting magnets in stacks (e.g., in filters) or when mounting in sockets at the bottom of a hole. On request, we can also produce versions magnetized through the diameter if your project requires it.

Advantages as well as disadvantages of Nd₂Fe₁₄B magnets.

Benefits

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

They do not lose magnetism, even after around 10 years – the decrease in strength is only ~1% (theoretically),
Neodymium magnets are characterized by exceptionally resistant to magnetic field loss caused by external magnetic fields,
A magnet with a shiny silver surface looks better,
They feature high magnetic induction at the operating surface, making them more effective,
Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their form) at temperatures up to 230°C and above...
Possibility of individual machining and optimizing to atypical conditions,
Fundamental importance in modern industrial fields – they serve a role in HDD drives, electromotive mechanisms, medical equipment, and complex engineering applications.
Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications

Weaknesses

Disadvantages of neodymium magnets:

To avoid cracks under impact, we suggest using special steel housings. Such a solution protects the magnet and simultaneously increases its durability.
When exposed to high temperature, neodymium magnets suffer a drop in power. Often, when the temperature exceeds 80°C, their power 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
Due to the susceptibility of magnets to corrosion in a humid environment, we advise using waterproof magnets made of rubber, plastic or other material stable to moisture, in case of application outdoors
Limited possibility of producing nuts in the magnet and complex shapes - recommended is a housing - mounting mechanism.
Health risk resulting from small fragments of magnets can be dangerous, in case of ingestion, which is particularly important in the context of child safety. Furthermore, tiny parts of these magnets are able to disrupt the diagnostic process medical when they are in the body.
Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications

Pull force analysis

Maximum lifting force for a neodymium magnet – what it depends on?

The load parameter shown concerns the maximum value, measured under laboratory conditions, namely:

using a sheet made of mild steel, acting as a magnetic yoke
possessing a massiveness of minimum 10 mm to ensure full flux closure
characterized by lack of roughness
without any clearance between the magnet and steel
during detachment in a direction perpendicular to the mounting surface
at temperature approx. 20 degrees Celsius

Lifting capacity in real conditions – factors

Effective lifting capacity is affected by working environment parameters, such as (from most important):

Space between magnet and steel – every millimeter of distance (caused e.g. by varnish or dirt) significantly weakens the pulling force, often by half at just 0.5 mm.
Pull-off angle – remember that the magnet holds strongest perpendicularly. Under sliding down, the capacity drops drastically, often to levels of 20-30% of the maximum value.
Plate thickness – insufficiently thick steel causes magnetic saturation, causing part of the power to be lost to the other side.
Steel type – low-carbon steel attracts best. Higher carbon content lower magnetic permeability and lifting capacity.
Surface finish – ideal contact is possible only on smooth steel. Rough texture reduce the real contact area, reducing force.
Thermal conditions – neodymium magnets have a negative temperature coefficient. At higher temperatures they are weaker, and at low temperatures they can be stronger (up to a certain limit).

Holding force was measured on the plate surface of 20 mm thickness, when the force acted perpendicularly, in contrast under attempts to slide the magnet the holding force is lower. Additionally, even a small distance between the magnet and the plate reduces the holding force.

Safety rules for work with NdFeB magnets

Handling rules

Before use, check safety instructions. Sudden snapping can destroy the magnet or injure your hand. Be predictive.

Danger to the youngest

Product intended for adults. Tiny parts pose a choking risk, causing intestinal necrosis. Keep out of reach of kids and pets.

Nickel allergy

Certain individuals experience a contact allergy to nickel, which is the typical protective layer for neodymium magnets. Extended handling might lead to an allergic reaction. It is best to use safety gloves.

Material brittleness

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

Dust is flammable

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

Threat to navigation

A powerful magnetic field negatively affects the functioning of compasses in smartphones and GPS navigation. Keep magnets near a smartphone to prevent damaging the sensors.

Health Danger

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

Maximum temperature

Control the heat. Heating the magnet above 80 degrees Celsius will ruin its properties and strength.

Magnetic media

Do not bring magnets near a purse, computer, or screen. The magnetism can destroy these devices and erase data from cards.

Pinching danger

Pinching hazard: The attraction force is so great that it can cause blood blisters, pinching, and broken bones. Protective gloves are recommended.

Caution! Looking for details? Check our post: Are neodymium magnets dangerous?

MW 5x4 / N38 - cylindrical magnet

Technical specification - MW 5x4 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Technical modeling of the assembly - report

Table 1: Static pull force (force vs distance) - characteristics MW 5x4 / N38

Table 2: Shear load (vertical surface) MW 5x4 / N38

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces MW 5x4 / N38

Table 4: Steel thickness (saturation) - power losses MW 5x4 / N38

Table 5: Working in heat (material behavior) - thermal limit MW 5x4 / N38

Table 6: Magnet-Magnet interaction (attraction) - forces in the system MW 5x4 / N38

Table 7: Safety (HSE) (implants) - warnings MW 5x4 / N38

Table 8: Impact energy (kinetic energy) - collision effects MW 5x4 / N38

Table 9: Anti-corrosion coating durability MW 5x4 / N38

Table 10: Construction data (Pc) MW 5x4 / N38

Table 11: Physics of underwater searching MW 5x4 / N38

1. Wall mount (shear)

2. Steel thickness impact

3. Temperature resistance

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

Material specification

Sustainability

Magnet pull force

Field Strength

Other proposals

MPL 50x50x10 / N38 - lamellar magnet

MW 4x4 / N38 - cylindrical magnet

SM 32x375 [2xM8] / N42 - magnetic separator

SM 32x125 [2xM8] / N52 - magnetic separator

Advantages as well as disadvantages of Nd2Fe14B magnets.

Benefits

Weaknesses

Pull force analysis

Maximum lifting force for a neodymium magnet – what it depends on?

Lifting capacity in real conditions – factors

Safety rules for work with NdFeB magnets

Handling rules

Danger to the youngest

Nickel allergy

Material brittleness

Dust is flammable

Threat to navigation

Health Danger

Maximum temperature

Magnetic media

Pinching danger

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (force vs distance) - characteristics
MW 5x4 / N38

Table 2: Shear load (vertical surface)
MW 5x4 / N38

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces
MW 5x4 / N38

Table 4: Steel thickness (saturation) - power losses
MW 5x4 / N38

Table 5: Working in heat (material behavior) - thermal limit
MW 5x4 / N38

Table 6: Magnet-Magnet interaction (attraction) - forces in the system
MW 5x4 / N38

Table 7: Safety (HSE) (implants) - warnings
MW 5x4 / N38

Table 8: Impact energy (kinetic energy) - collision effects
MW 5x4 / N38

Table 9: Anti-corrosion coating durability
MW 5x4 / N38

Table 10: Construction data (P_c)
MW 5x4 / N38

Table 11: Physics of underwater searching
MW 5x4 / N38

Advantages as well as disadvantages of Nd₂Fe₁₄B magnets.