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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

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Technical specification of the product - 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

Physical simulation of the magnet - data

Presented data constitute the outcome of a mathematical analysis. Values rely on algorithms for the material Nd₂Fe₁₄B. Operational parameters might slightly deviate from the simulation results. Treat these data as a supplementary guide when designing systems.

Table 1: Static pull force (pull vs distance) - power drop
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	weak grip
1 mm	3109 Gs 310.9 mT	0.14 kg / 0.30 pounds 135.6 g / 1.3 N	weak grip
2 mm	1577 Gs 157.7 mT	0.03 kg / 0.08 pounds 34.9 g / 0.3 N	weak grip
3 mm	856 Gs 85.6 mT	0.01 kg / 0.02 pounds 10.3 g / 0.1 N	weak grip
5 mm	323 Gs 32.3 mT	0.00 kg / 0.00 pounds 1.5 g / 0.0 N	weak grip
10 mm	66 Gs 6.6 mT	0.00 kg / 0.00 pounds 0.1 g / 0.0 N	weak grip
15 mm	24 Gs 2.4 mT	0.00 kg / 0.00 pounds 0.0 g / 0.0 N	weak grip
20 mm	11 Gs 1.1 mT	0.00 kg / 0.00 pounds 0.0 g / 0.0 N	weak grip
30 mm	4 Gs 0.4 mT	0.00 kg / 0.00 pounds 0.0 g / 0.0 N	weak grip
50 mm	1 Gs 0.1 mT	0.00 kg / 0.00 pounds 0.0 g / 0.0 N	weak grip

Magnetic force drops sharply with every mm of spacing. Keep in mind that even a very thin break (e.g., contamination, paint, rust) significantly diminishes the holding power. Magnets operate most effectively at the point of direct contact; gap nullifies the force. See how rapidly the load capacity plummet, when the magnet does not touch directly to the metal substrate. When planning the arrangement, eliminate additional spacers.

Table 2: Vertical force (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 defines the theoretical shear load necessary to initiate the sliding of the magnet down on a vertical metal surface (assuming standard friction coefficient). This parameter is a function of the distance between the magnet and the surface.

Table 3: Wall mounting (shearing) - vertical pull
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 mounting a magnet on a upright surface (e.g., a board), it will maintain just approx. 1/5 of nominal attraction strength. Gravity and a low friction coefficient influence the fact that products move down faster than they pop off the substrate. Want to create a hanger? Note that the sliding force is significantly lower than the maximum static pull force. On a painted metal, the magnet will slide down under a significantly smaller cargo. Utilizing a rubberized pad can significantly improve the result.

Table 4: Material efficiency (saturation) - 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 thin sheet is not enough to conduct the entire magnetic field, which wastes potential of the holder. If you attach a powerful product to a too thin substrate, the flux will penetrate right through and the holding will be smaller. To squeeze 100% of this neodymium's power, you require a sufficiently solid piece of metal. The saturation phenomenon causes that on delicate walls (e.g., thin profiles), the product shows lower pull force. We suggest choosing the steel thickness from these parameters.

Table 5: Thermal stability (stability) - power drop
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 change their properties power above the temperature limit. Protect against heat – high temperature can irreversibly demagnetize this magnet. With every degree above norm, the neodymium's capacity temporarily lowers. Do not use this magnet close to ovens higher than its safe range. Ignoring the limit will result in destruction of magnetism.

*Important note: Thermal stability is determined by both grade, and the Permeance Coefficient Pc. Thin magnets (pancake types) risk losing magnetic properties sooner than taller cylinders. Warning indicator in the table points to permanent field degradation for this specific geometry.

Table 6: Two magnets (attraction) - field range
MW 4x5 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Strength (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 magnetic products interact from a wider radius than a magnet and sheet combination. The connection of two magnets creates a more powerful interaction and a larger range of operation. Planning to create a powerful holder? Use a pair of magnets instead of one magnet and a striker plate. Be careful that when connecting a pair of magnets, the collision energy is massive. The levitation is a bit weaker than the connection force, but still large.
*Flux density for N-N configuration is approximately ~0 Gs at the midpoint between the magnets (caused by magnetic field nullification).
Attention: Estimates show friction force of dual matching neodymium magnets (friction ~0.15 for Ni-Ni coating).

Table 7: Safety (HSE) (implants) - precautionary measures
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
Car key	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 is a serious hazard to IT equipment and medical implants. These NdFeB products generate a field that destroys function of digital equipment. Notice: the unseen radiation penetrates the body and glass. Exceptional care must be exercised by people with hearing aids and insulin pumps. The risk also applies to: automatic timepieces, remotes, speakers, and displays. Avoid contact with magnetic cards, hard drives, or sensitive navigation tools.

Table 8: Collisions (cracking risk) - collision effects
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

Neodymium magnets are very brittle – a violent impact against metal risks their cracking. Watch the impact speed – a neodymium left loose turns into a projectile. Kinetic force can cause material chips or dangerous crushing to fingers. Hold the magnet firmly during installation so it doesn't slam with momentum against the steel surface. A contact at a velocity of dozens of km/h almost guarantees destruction of the magnet. Wear safety glasses when handling with powerful specimens.

Table 9: Coating parameters (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)

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

Flux value emitted by the pole surface. Key data in coil applications as well as sensors. The P_c coefficient determines the working geometry.

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%

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

In water, the magnet feels stronger thanks to Archimedes' principle. However, remember the water resistance when pulling the rope quickly.

1. Wall mount (shear)

*Note: On a vertical surface, the magnet retains just approx. 20-30% of its perpendicular strength.

2. Steel thickness impact

*Thin steel (e.g. 0.5mm PC case) severely weakens the holding force.

3. Temperature resistance

*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

Elemental analysis

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%

Environmental data

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

Measurement Calculator

Magnet pull force

Force in kg

Newtons (N)

Pounds (lbs)

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Induction (Gs)

Induction (T)

Enter data into a field, to see all other values change in real-time.

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This product is an extremely powerful cylindrical magnet, composed of durable NdFeB material, which, at dimensions of Ø4x5 mm, guarantees maximum efficiency. This specific item boasts high dimensional repeatability and professional build quality, making it a perfect solution for the most demanding engineers and designers. As a magnetic rod with significant force (approx. 0.46 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 typical operating conditions, ensuring an aesthetic appearance and durability for years.

This model is ideal for building generators, advanced sensors, and efficient filters, where field concentration on a small surface counts. Thanks to the high power 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.

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 automation, 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 an optimal price-to-power ratio and operational stability. If you need even stronger magnets in the same volume (Ø4x5), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard in continuous sale in our warehouse.

The presented product is a neodymium magnet with precisely defined parameters: diameter 4 mm and height 5 mm. The key parameter here is the lifting capacity amounting to approximately 0.46 kg (force ~4.48 N), which, with such defined dimensions, proves the high power of the NdFeB material. The product has a [NiCuNi] coating, which secures it against oxidation, giving it an aesthetic, silvery shine.

This rod magnet is magnetized axially (along the height of 5 mm), which means that the N and S poles are located on the flat, circular surfaces. Such an arrangement is most desirable 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.

Advantages

Besides their high retention, neodymium magnets are valued for these benefits:

They virtually do not lose power, because even after ten years the decline in efficiency is only ~1% (in laboratory conditions),
Magnets very well protect themselves against loss of magnetization caused by foreign field sources,
By covering with a lustrous coating of silver, the element gains an nice 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...
Thanks to freedom in forming and the ability to adapt to unusual requirements,
Fundamental importance in high-tech industry – they find application in mass storage devices, electromotive mechanisms, medical equipment, as well as modern systems.
Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications

Cons

Cons of neodymium magnets and ways of using them

They are prone to damage upon heavy impacts. To avoid cracks, it is worth protecting magnets using a steel holder. Such protection not only shields the magnet but also increases its resistance to damage
We warn that neodymium magnets can reduce their strength at high temperatures. To prevent this, we suggest our specialized [AH] magnets, which work effectively even at 230°C.
Magnets exposed to a humid environment can rust. Therefore when using outdoors, we recommend using waterproof magnets made of rubber, plastic or other material protecting against moisture
Due to limitations in producing threads and complicated shapes in magnets, we recommend using a housing - magnetic mechanism.
Potential hazard resulting from small fragments of magnets pose a threat, in case of ingestion, which becomes key in the aspect of protecting the youngest. Furthermore, small elements of these products can complicate diagnosis medical when they are in the body.
With large orders the cost of neodymium magnets can be a barrier,

Lifting parameters

Maximum holding power of the magnet – what it depends on?

The declared magnet strength concerns the peak performance, obtained under optimal environment, namely:

with the application of a sheet made of special test steel, ensuring full magnetic saturation
possessing a massiveness of minimum 10 mm to avoid saturation
characterized by even structure
under conditions of no distance (surface-to-surface)
for force acting at a right angle (pull-off, not shear)
at ambient temperature room level

Key elements affecting lifting force

Effective lifting capacity is affected by specific conditions, such as (from priority):

Space between surfaces – even a fraction of a millimeter of separation (caused e.g. by varnish or unevenness) significantly weakens the pulling force, often by half at just 0.5 mm.
Direction of force – highest force is reached only during perpendicular pulling. The force required to slide of the magnet along the surface is usually many times smaller (approx. 1/5 of the lifting capacity).
Wall thickness – the thinner the sheet, the weaker the hold. Magnetic flux passes through the material instead of converting into lifting capacity.
Material composition – not every steel attracts identically. Alloy additives worsen the interaction with the magnet.
Plate texture – ground elements guarantee perfect abutment, which increases field saturation. Uneven metal weaken the grip.
Temperature influence – high temperature reduces magnetic field. Too high temperature can permanently damage the magnet.

Lifting capacity was determined by applying a polished steel plate of optimal thickness (min. 20 mm), under perpendicular pulling force, in contrast under attempts to slide the magnet the load capacity is reduced by as much as 5 times. Moreover, even a small distance between the magnet and the plate lowers the holding force.

Warnings

Handling rules

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

Magnetic interference

Navigation devices and mobile phones are highly sensitive to magnetism. Close proximity with a strong magnet can ruin the internal compass in your phone.

Mechanical processing

Powder created during grinding of magnets is flammable. Do not drill into magnets unless you are an expert.

Heat warning

Monitor thermal conditions. Heating the magnet above 80 degrees Celsius will permanently weaken its properties and strength.

Shattering risk

Beware of splinters. Magnets can fracture upon violent connection, ejecting sharp fragments into the air. Eye protection is mandatory.

Nickel coating and allergies

Studies show that the nickel plating (the usual finish) is a strong allergen. If you have an allergy, avoid touching magnets with bare hands or choose versions in plastic housing.

Warning for heart patients

Warning for patients: Powerful magnets disrupt electronics. Maintain minimum 30 cm distance or ask another person to work with the magnets.

Choking Hazard

Neodymium magnets are not intended for children. Eating a few magnets may result in them connecting inside the digestive tract, which poses a severe health hazard and necessitates urgent medical intervention.

Crushing force

Risk of injury: The pulling power is so great that it can cause blood blisters, pinching, and broken bones. Protective gloves are recommended.

Threat to electronics

Data protection: Neodymium magnets can ruin payment cards and delicate electronics (heart implants, hearing aids, timepieces).

Important! More info about hazards in the article: Safety of working with magnets.

MW 4x5 / N38 - cylindrical magnet

Technical specification of the product - MW 4x5 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical simulation of the magnet - data

Table 1: Static pull force (pull vs distance) - power drop MW 4x5 / N38

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

Table 3: Wall mounting (shearing) - vertical pull MW 4x5 / N38

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

Table 5: Thermal stability (stability) - power drop MW 4x5 / N38

Table 6: Two magnets (attraction) - field range MW 4x5 / N38

Table 7: Safety (HSE) (implants) - precautionary measures MW 4x5 / N38

Table 8: Collisions (cracking risk) - collision effects MW 4x5 / N38

Table 9: Coating parameters (durability) MW 4x5 / N38

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

Table 11: Hydrostatics and buoyancy MW 4x5 / N38

1. Wall mount (shear)

2. Steel thickness impact

3. Temperature resistance

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

Elemental analysis

Environmental data

Magnet pull force

Magnetic Field

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MPL 25x25x10 / N38 - lamellar magnet

Pros and cons of rare earth magnets.

Advantages

Cons

Lifting parameters

Maximum holding power of the magnet – what it depends on?

Key elements affecting lifting force

Warnings

Handling rules

Magnetic interference

Mechanical processing

Heat warning

Shattering risk

Nickel coating and allergies

Warning for heart patients

Choking Hazard

Crushing force

Threat to electronics

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (pull vs distance) - power drop
MW 4x5 / N38

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

Table 3: Wall mounting (shearing) - vertical pull
MW 4x5 / N38

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

Table 5: Thermal stability (stability) - power drop
MW 4x5 / N38

Table 6: Two magnets (attraction) - field range
MW 4x5 / N38

Table 7: Safety (HSE) (implants) - precautionary measures
MW 4x5 / N38

Table 8: Collisions (cracking risk) - collision effects
MW 4x5 / N38

Table 9: Coating parameters (durability)
MW 4x5 / N38

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

Table 11: Hydrostatics and buoyancy
MW 4x5 / N38