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MW 4x5 / 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 010077

GTIN/EAN: 5906301810766

5.00

Diameter Ø

4 mm [±0,1 mm]

Height

5 mm [±0,1 mm]

Weight

0.47 g

Magnetization Direction

↑ axial

Load capacity

0.46 kg / 4.48 N

Magnetic Induction

573.83 mT / 5738 Gs

Coating

[NiCuNi] Nickel

technical parameters »

0.320 ZŁ with VAT / pcs + price for transport

0.260 ZŁ net + 23% VAT / pcs

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Detailed specification - MW 4x5 / N38 - cylindrical magnet

Specification / characteristics - MW 4x5 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010077
GTIN/EAN	5906301810766
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	5 mm [±0,1 mm]
Weight	0.47 g
Magnetization Direction	↑ axial
Load capacity ~ ?	0.46 kg / 4.48 N
Magnetic Induction ~ ?	573.83 mT / 5738 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 4x5 / 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 product - data

The following data represent the result of a physical simulation. Values are based on algorithms for the material Nd₂Fe₁₄B. Operational performance may deviate from the simulation results. Please consider these data as a supplementary guide during assembly planning.

Table 1: Static pull force (force vs gap) - characteristics
MW 4x5 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	5727 Gs 572.7 mT	0.46 kg / 1.01 pounds 460.0 g / 4.5 N	low risk
1 mm	3109 Gs 310.9 mT	0.14 kg / 0.30 pounds 135.6 g / 1.3 N	low risk
2 mm	1577 Gs 157.7 mT	0.03 kg / 0.08 pounds 34.9 g / 0.3 N	low risk
3 mm	856 Gs 85.6 mT	0.01 kg / 0.02 pounds 10.3 g / 0.1 N	low risk
5 mm	323 Gs 32.3 mT	0.00 kg / 0.00 pounds 1.5 g / 0.0 N	low risk
10 mm	66 Gs 6.6 mT	0.00 kg / 0.00 pounds 0.1 g / 0.0 N	low risk
15 mm	24 Gs 2.4 mT	0.00 kg / 0.00 pounds 0.0 g / 0.0 N	low risk
20 mm	11 Gs 1.1 mT	0.00 kg / 0.00 pounds 0.0 g / 0.0 N	low risk
30 mm	4 Gs 0.4 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 drops significantly per each millimeter of spacing. Keep in mind that even a microscopic distance (e.g., contamination, varnish, dust) noticeably reduces the pull force. Magnets work most effectively at the point of direct contact; distance kills the power. See how flashily the pull force fall, when the magnet does not adhere directly to the metal substrate. When planning the assembly, eliminate unnecessary gaps.

Table 2: Vertical capacity (wall)
MW 4x5 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	0.09 kg / 0.20 pounds 92.0 g / 0.9 N
1 mm	Stal (~0.2)	0.03 kg / 0.06 pounds 28.0 g / 0.3 N
2 mm	Stal (~0.2)	0.01 kg / 0.01 pounds 6.0 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

This section indicates the approximate force required to initiate the shifting of the magnet downwards on a upright metal surface (assuming standard friction). The holding force is relative to the separation distance between the magnet and the metal.

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces
MW 4x5 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	0.14 kg / 0.30 pounds 138.0 g / 1.4 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.09 kg / 0.20 pounds 92.0 g / 0.9 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.05 kg / 0.10 pounds 46.0 g / 0.5 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	0.23 kg / 0.51 pounds 230.0 g / 2.3 N

When placing a element on a upright surface (e.g., a board), it will maintain only approx. 20%-30% of its maximum pull force. Gravity and a low friction coefficient cause that magnets slip easier than they pop off the substrate. Designing a wall mount? Remember that the sliding force is significantly lower than the maximum static pull force. On a painted metal, the element will give way down under a much lighter weight. Using a rubber coating can drastically increase the grip.

Table 4: Material efficiency (substrate influence) - power losses
MW 4x5 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.05 kg / 0.10 pounds 46.0 g / 0.5 N
1 mm	25%	0.12 kg / 0.25 pounds 115.0 g / 1.1 N
2 mm	50%	0.23 kg / 0.51 pounds 230.0 g / 2.3 N
3 mm	75%	0.35 kg / 0.76 pounds 345.0 g / 3.4 N
5 mm	100%	0.46 kg / 1.01 pounds 460.0 g / 4.5 N
10 mm	100%	0.46 kg / 1.01 pounds 460.0 g / 4.5 N
11 mm	100%	0.46 kg / 1.01 pounds 460.0 g / 4.5 N
12 mm	100%	0.46 kg / 1.01 pounds 460.0 g / 4.5 N

A too thin steel is incapable of absorb the full magnetic flux, which wastes potential of the holder. If you attach a powerful product to a thin surface, the flux will penetrate right through and the holding will be smaller. To squeeze the maximum of this neodymium's potential, you need a suitably thick piece of steel. The saturation phenomenon means that on thin elements (e.g., thin profiles), the holder holds weaker. We recommend selecting the steel dimension based on the following data.

Table 5: Thermal stability (material behavior) - resistance threshold
MW 4x5 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	0.46 kg / 1.01 pounds 460.0 g / 4.5 N	OK
40 °C	-2.2%	0.45 kg / 0.99 pounds 449.9 g / 4.4 N	OK
60 °C	-4.4%	0.44 kg / 0.97 pounds 439.8 g / 4.3 N	OK
80 °C	-6.6%	0.43 kg / 0.95 pounds 429.6 g / 4.2 N
100 °C	-28.8%	0.33 kg / 0.72 pounds 327.5 g / 3.2 N

Standard neodymium magnets irreversibly lose parameters above the temperature limit. Protect against heat – excessive heat can irreversibly destroy this magnet. With increasing heat, the neodymium's capacity briefly drops. Avoid using this magnet near heat sources higher than its operating temperature limit. Exceeding the critical threshold will cause destruction of magnetic properties.

*Important note: Heat tolerance is determined by both grade, but also on the magnet's shape. Thin magnets (low permeance coefficient) risk losing magnetic properties at lower temperatures than long magnets. Red status in the table indicates a risk of irreversible loss for this specific geometry.

Table 6: Two magnets (repulsion) - forces in the system
MW 4x5 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	2.54 kg / 5.60 pounds 6 049 Gs	0.38 kg / 0.84 pounds 381 g / 3.7 N	N/A
1 mm	1.45 kg / 3.19 pounds 8 646 Gs	0.22 kg / 0.48 pounds 217 g / 2.1 N	1.30 kg / 2.87 pounds ~0 Gs
2 mm	0.75 kg / 1.65 pounds 6 218 Gs	0.11 kg / 0.25 pounds 112 g / 1.1 N	0.67 kg / 1.49 pounds ~0 Gs
3 mm	0.38 kg / 0.83 pounds 4 412 Gs	0.06 kg / 0.12 pounds 57 g / 0.6 N	0.34 kg / 0.75 pounds ~0 Gs
5 mm	0.10 kg / 0.23 pounds 2 299 Gs	0.02 kg / 0.03 pounds 15 g / 0.2 N	0.09 kg / 0.20 pounds ~0 Gs
10 mm	0.01 kg / 0.02 pounds 646 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 132 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 12 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 7 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 5 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 2 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs

Two magnets interact from a wider radius than a neodymium and metal combination. The setup of magnet-to-magnet produces a massive flux and a larger range of performance. Want to build a powerful holder? Apply two magnets instead of one magnet and a steel. Remember that when attracting two neodymiums, the pinch force is massive. The levitation is a bit weaker than the connection force, but still significant.
*The magnetic induction between like poles drops to ~0 Gs in the exact middle between the magnets (caused by magnetic field nullification).
* Results refer to shear force of a pair of same neodymium magnets (friction ~0.15 for Ni-Ni coating).

Table 7: Safety (HSE) (electronics) - warnings
MW 4x5 / 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
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 serious hazard to IT equipment as well as medical implants. These neodymiums generate a field that prevents correct functioning of sensitive medical devices. Remember: the unseen radiation penetrates the body and plastic. Exceptional care must be taken by people with cochlear implants and drug dispensers. Also at risk are: automatic timepieces, remotes, membranes, and displays. Avoid contact with magnetic cards, HDD media, or precise measuring instruments.

Table 8: Impact energy (kinetic energy) - warning
MW 4x5 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	31.55 km/h (8.76 m/s)	0.02 J
30 mm	54.65 km/h (15.18 m/s)	0.05 J
50 mm	70.55 km/h (19.60 m/s)	0.09 J
100 mm	99.77 km/h (27.71 m/s)	0.18 J

NdFeB products 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 painful pinches to fingers. Hold the magnet firmly during mounting so it doesn't slam with momentum against the steel surface. A collision at high speed ends with a crack of the neodymium. Wear safety glasses when working with powerful specimens.

Table 9: Anti-corrosion coating durability
MW 4x5 / 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 (Flux)
MW 4x5 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	760 Mx	7.6 µWb
P_c Coefficient	1.00	High (Stable)

Total magnetic flux passing through the pole surface. Essential parameter when building generators and motors. P_c value defines the magnet's operating point.

Table 11: Hydrostatics and buoyancy
MW 4x5 / N38

Environment	Effective steel pull	Effect
Air (land)	0.46 kg	Standard
Water (riverbed)	0.53 kg (+0.07 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. Note: for permanent underwater work, we recommend magnets with an anti-corrosive (epoxy) coating.

1. Vertical hold

*Note: On a vertical wall, the magnet holds merely approx. 20-30% of its max power.

2. Efficiency vs thickness

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

3. Power loss vs temp

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

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 1.00

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 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: 010077-2026

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This product is an extremely powerful cylindrical magnet, made from modern NdFeB material, which, at dimensions of Ø4x5 mm, guarantees optimal power. The MW 4x5 / N38 component boasts high dimensional repeatability and professional build quality, making it a perfect solution for professional engineers and designers. As a magnetic rod with impressive force (approx. 0.46 kg), this product is available off-the-shelf from our European logistics center, ensuring quick order fulfillment. Furthermore, its Ni-Cu-Ni coating secures it against corrosion in standard operating conditions, guaranteeing an aesthetic appearance and durability for years.

It finds application in modeling, advanced robotics, and broadly understood industry, serving as a fastening or actuating element. Thanks to the pull force of 4.48 N with a weight of only 0.47 g, this cylindrical magnet is indispensable in miniature devices and wherever low weight is crucial.

Due to the brittleness of the NdFeB material, you must not use force-fitting (so-called press-fit), as this risks chipping the coating of this precision component. To ensure long-term durability in industry, anaerobic resins are used, which are safe for nickel and fill the gap, guaranteeing high repeatability of the connection.

Grade N38 is the most frequently chosen standard for industrial neodymium magnets, offering a great economic balance and high resistance to demagnetization. If you need the strongest magnets in the same volume (Ø4x5), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard available off-the-shelf in our store.

The presented product is a neodymium magnet with precisely defined parameters: diameter 4 mm and height 5 mm. The value of 4.48 N means that the magnet is capable of holding a weight many times exceeding its own mass of 0.47 g. The product has a [NiCuNi] coating, which protects the surface against oxidation, giving it an aesthetic, silvery shine.

This rod magnet is magnetized axially (along the height of 5 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 diametrically if your project requires it.

Strengths and weaknesses of rare earth magnets.

Advantages

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

They do not lose power, even after approximately ten years – the decrease in lifting capacity is only ~1% (theoretically),
Neodymium magnets prove to be exceptionally resistant to demagnetization caused by external field sources,
By applying a decorative layer of gold, the element presents an professional look,
The surface of neodymium magnets generates a powerful magnetic field – this is a distinguishing feature,
Thanks to resistance to high temperature, they can operate (depending on the form) even at temperatures up to 230°C and higher...
Possibility of individual modeling as well as modifying to complex requirements,
Fundamental importance in modern industrial fields – they are commonly used in HDD drives, electric motors, advanced medical instruments, and industrial machines.
Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications

Limitations

Disadvantages of neodymium magnets:

At very strong impacts they can break, therefore we recommend placing them in steel cases. A metal housing provides additional protection against damage and increases the magnet's durability.
We warn that neodymium magnets can lose their power at high temperatures. To prevent this, we suggest our specialized [AH] magnets, which work effectively even at 230°C.
They rust in a humid environment. For use outdoors we recommend using waterproof magnets e.g. in rubber, plastic
We recommend a housing - magnetic mechanism, due to difficulties in realizing nuts inside the magnet and complex forms.
Possible danger related to microscopic parts of magnets are risky, in case of ingestion, which is particularly important in the context of child health protection. It is also worth noting that small elements of these products are able to be problematic in diagnostics 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

Maximum lifting capacity of the magnet – what affects it?

The declared magnet strength concerns the limit force, recorded under laboratory conditions, namely:

using a plate made of high-permeability steel, serving as a magnetic yoke
with a thickness minimum 10 mm
with an polished contact surface
without the slightest insulating layer between the magnet and steel
during pulling in a direction vertical to the plane
at temperature approx. 20 degrees Celsius

Lifting capacity in practice – influencing factors

In real-world applications, the actual lifting capacity depends on many variables, presented from most significant:

Space between magnet and steel – every millimeter of distance (caused e.g. by varnish or unevenness) diminishes the magnet efficiency, often by half at just 0.5 mm.
Force direction – catalog parameter refers to pulling vertically. When applying parallel force, the magnet exhibits significantly lower power (typically approx. 20-30% of nominal force).
Metal thickness – the thinner the sheet, the weaker the hold. Part of the magnetic field penetrates through instead of converting into lifting capacity.
Material type – the best choice is pure iron steel. Hardened steels may attract less.
Surface quality – the smoother and more polished the surface, the larger the contact zone and higher the lifting capacity. Roughness acts like micro-gaps.
Thermal environment – temperature increase results in weakening of induction. Check the thermal limit for a given model.

Lifting capacity testing was conducted on plates with a smooth surface of optimal thickness, under a perpendicular pulling force, in contrast under parallel forces the load capacity is reduced by as much as 5 times. Moreover, even a slight gap between the magnet’s surface and the plate lowers the load capacity.

H&S for magnets

Bodily injuries

Protect your hands. Two large magnets will join instantly with a force of several hundred kilograms, crushing everything in their path. Be careful!

Beware of splinters

NdFeB magnets are ceramic materials, which means they are prone to chipping. Collision of two magnets leads to them breaking into small pieces.

Powerful field

Before use, read the rules. Sudden snapping can destroy the magnet or injure your hand. Be predictive.

Dust explosion hazard

Drilling and cutting of neodymium magnets poses a fire hazard. Neodymium dust oxidizes rapidly with oxygen and is difficult to extinguish.

GPS and phone interference

An intense magnetic field negatively affects the operation of compasses in phones and navigation systems. Do not bring magnets close to a smartphone to prevent breaking the sensors.

Magnetic media

Device Safety: Neodymium magnets can damage payment cards and sensitive devices (heart implants, hearing aids, mechanical watches).

No play value

Neodymium magnets are not intended for children. Eating multiple magnets may result in them pinching intestinal walls, which constitutes a critical condition and necessitates immediate surgery.

Danger to pacemakers

Health Alert: Neodymium magnets can deactivate heart devices and defibrillators. Stay away if you have medical devices.

Metal Allergy

Nickel alert: The Ni-Cu-Ni coating consists of nickel. If redness happens, cease working with magnets and wear gloves.

Maximum temperature

Do not overheat. NdFeB magnets are sensitive to temperature. If you require resistance above 80°C, ask us about HT versions (H, SH, UH).

Security! More info about risks in the article: Safety of working with magnets.

MW 4x5 / N38 - cylindrical magnet

Detailed specification - MW 4x5 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Technical modeling of the product - data

Table 1: Static pull force (force vs gap) - characteristics MW 4x5 / N38

Table 2: Vertical capacity (wall) MW 4x5 / N38

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces MW 4x5 / N38

Table 4: Material efficiency (substrate influence) - power losses MW 4x5 / N38

Table 5: Thermal stability (material behavior) - resistance threshold MW 4x5 / N38

Table 6: Two magnets (repulsion) - forces in the system MW 4x5 / N38

Table 7: Safety (HSE) (electronics) - warnings MW 4x5 / N38

Table 8: Impact energy (kinetic energy) - warning MW 4x5 / N38

Table 9: Anti-corrosion coating durability MW 4x5 / N38

Table 10: Construction data (Flux) MW 4x5 / N38

Table 11: Hydrostatics and buoyancy MW 4x5 / N38

1. Vertical hold

2. Efficiency vs thickness

3. Power loss vs temp

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

Chemical composition

Ecology and recycling (GPSR)

Force (pull)

Magnetic Field

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Strengths and weaknesses of rare earth magnets.

Advantages

Limitations

Pull force analysis

Maximum lifting capacity of the magnet – what affects it?

Lifting capacity in practice – influencing factors

H&S for magnets

Bodily injuries

Beware of splinters

Powerful field

Dust explosion hazard

GPS and phone interference

Magnetic media

No play value

Danger to pacemakers

Metal Allergy

Maximum temperature

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (force vs gap) - characteristics
MW 4x5 / N38

Table 2: Vertical capacity (wall)
MW 4x5 / N38

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces
MW 4x5 / N38

Table 4: Material efficiency (substrate influence) - power losses
MW 4x5 / N38

Table 5: Thermal stability (material behavior) - resistance threshold
MW 4x5 / N38

Table 6: Two magnets (repulsion) - forces in the system
MW 4x5 / N38

Table 7: Safety (HSE) (electronics) - warnings
MW 4x5 / N38

Table 8: Impact energy (kinetic energy) - warning
MW 4x5 / N38

Table 9: Anti-corrosion coating durability
MW 4x5 / N38

Table 10: Construction data (Flux)
MW 4x5 / N38

Table 11: Hydrostatics and buoyancy
MW 4x5 / N38