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MW 5x25 / 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 010086

GTIN/EAN: 5906301810858

5.00

Diameter Ø

5 mm [±0,1 mm]

Height

25 mm [±0,1 mm]

Weight

3.68 g

Magnetization Direction

↑ axial

Load capacity

0.45 kg / 4.41 N

Magnetic Induction

615.39 mT / 6154 Gs

Coating

[NiCuNi] Nickel

check technical specifications »

2.31 ZŁ with VAT / pcs + price for transport

1.880 ZŁ net + 23% VAT / pcs

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Technical - MW 5x25 / N38 - cylindrical magnet

Specification / characteristics - MW 5x25 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010086
GTIN/EAN	5906301810858
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	25 mm [±0,1 mm]
Weight	3.68 g
Magnetization Direction	↑ axial
Load capacity ~ ?	0.45 kg / 4.41 N
Magnetic Induction ~ ?	615.39 mT / 6154 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 5x25 / N38 - cylindrical magnet

properties	values	units
remenance Br [min. - max.] ?	12.2-12.6	kGs
remenance Br [min. - max.] ?	1220-1260	mT
coercivity bHc ?	10.8-11.5	kOe
coercivity bHc ?	860-915	kA/m
actual internal force iHc	≥ 12	kOe
actual internal force iHc	≥ 955	kA/m
energy density [min. - max.] ?	36-38	BH max MGOe
energy density [min. - max.] ?	287-303	BH max KJ/m
max. temperature ?	≤ 80	°C

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

properties	values	units
Vickers hardness	≥550	Hv
Density	≥7.4	g/cm³
Curie Temperature TC	312 - 380	°C
Curie Temperature TF	593 - 716	°F
Specific resistance	150	μΩ⋅cm
Bending strength	250	MPa
Compressive strength	1000~1100	MPa
Thermal expansion parallel (∥) to orientation (M)	(3-4) x 10^-6	°C^-1
Thermal expansion perpendicular (⊥) to orientation (M)	-(1-3) x 10^-6	°C^-1
Young's modulus	1.7 x 10⁴	kg/mm²

Engineering modeling of the assembly - technical parameters

The following information constitute the result of a mathematical calculation. Values rely on models for the material Nd₂Fe₁₄B. Operational parameters may differ from theoretical values. Use these calculations as a supplementary guide during assembly planning.

Table 1: Static pull force (force vs distance) - characteristics
MW 5x25 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	6144 Gs 614.4 mT	0.45 kg / 0.99 pounds 450.0 g / 4.4 N	weak grip
1 mm	3869 Gs 386.9 mT	0.18 kg / 0.39 pounds 178.4 g / 1.8 N	weak grip
2 mm	2300 Gs 230.0 mT	0.06 kg / 0.14 pounds 63.1 g / 0.6 N	weak grip
3 mm	1412 Gs 141.2 mT	0.02 kg / 0.05 pounds 23.8 g / 0.2 N	weak grip
5 mm	633 Gs 63.3 mT	0.00 kg / 0.01 pounds 4.8 g / 0.0 N	weak grip
10 mm	169 Gs 16.9 mT	0.00 kg / 0.00 pounds 0.3 g / 0.0 N	weak grip
15 mm	72 Gs 7.2 mT	0.00 kg / 0.00 pounds 0.1 g / 0.0 N	weak grip
20 mm	38 Gs 3.8 mT	0.00 kg / 0.00 pounds 0.0 g / 0.0 N	weak grip
30 mm	15 Gs 1.5 mT	0.00 kg / 0.00 pounds 0.0 g / 0.0 N	weak grip
50 mm	4 Gs 0.4 mT	0.00 kg / 0.00 pounds 0.0 g / 0.0 N	weak grip

Magnetic force drops sharply with every mm of gap. Remember that even the smallest gap (e.g., contamination, varnish, dust) noticeably diminishes the holding power. Magnetic products hold most effectively at the point of direct contact; air break weakens the power. Observe how rapidly the pull force drop, when the magnet does not touch flatly to the steel surface. When designing the mounting, discard unnecessary gaps.

Table 2: Shear load (wall)
MW 5x25 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	0.09 kg / 0.20 pounds 90.0 g / 0.9 N
1 mm	Stal (~0.2)	0.04 kg / 0.08 pounds 36.0 g / 0.4 N
2 mm	Stal (~0.2)	0.01 kg / 0.03 pounds 12.0 g / 0.1 N
3 mm	Stal (~0.2)	0.00 kg / 0.01 pounds 4.0 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 presents the approximate holding capacity necessary to start the sliding of the magnet vertically against a upright metal surface (considering standard friction). The holding force is relative to the gap size between the magnet and the surface.

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces
MW 5x25 / 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 135.0 g / 1.3 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.09 kg / 0.20 pounds 90.0 g / 0.9 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.05 kg / 0.10 pounds 45.0 g / 0.4 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	0.23 kg / 0.50 pounds 225.0 g / 2.2 N

When placing a magnet on a vertical wall (e.g., a car body), it will maintain barely about 20%-30% of its nominal power. Gravitational force as well as a low friction coefficient cause that magnets slip faster than they detach. Planning a hanger? Consider that the shear force is significantly lower than the maximum static pull force. On a slippery surface, the magnet will slide down under a noticeably lighter weight. Application of an anti-slip pad can effectively improve the result.

Table 4: Material efficiency (saturation) - power losses
MW 5x25 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.05 kg / 0.10 pounds 45.0 g / 0.4 N
1 mm	25%	0.11 kg / 0.25 pounds 112.5 g / 1.1 N
2 mm	50%	0.23 kg / 0.50 pounds 225.0 g / 2.2 N
3 mm	75%	0.34 kg / 0.74 pounds 337.5 g / 3.3 N
5 mm	100%	0.45 kg / 0.99 pounds 450.0 g / 4.4 N
10 mm	100%	0.45 kg / 0.99 pounds 450.0 g / 4.4 N
11 mm	100%	0.45 kg / 0.99 pounds 450.0 g / 4.4 N
12 mm	100%	0.45 kg / 0.99 pounds 450.0 g / 4.4 N

A too thin steel cannot conduct the full magnetic flux, which wastes potential of the holder. If you install a neodymium to a thin surface, the field will pass right through and the attraction force will be weaker. To squeeze the maximum of this neodymium's potential, you need a suitably thick piece of steel. The material oversaturation causes that on sheet metal structures (e.g., car bodies), the holder works worse. We advise picking the steel thickness based on the following data.

Table 5: Working in heat (material behavior) - power drop
MW 5x25 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	0.45 kg / 0.99 pounds 450.0 g / 4.4 N	OK
40 °C	-2.2%	0.44 kg / 0.97 pounds 440.1 g / 4.3 N	OK
60 °C	-4.4%	0.43 kg / 0.95 pounds 430.2 g / 4.2 N	OK
80 °C	-6.6%	0.42 kg / 0.93 pounds 420.3 g / 4.1 N
100 °C	-28.8%	0.32 kg / 0.71 pounds 320.4 g / 3.1 N

Classic neodymiums lose power above the temperature limit. Protect against heat – excessive heat can permanently demagnetize this magnet. With every degree above norm, the neodymium's force momentarily decreases. Refrain from using this magnet in hot environments exceeding its safe range. Too high temperature will result in destruction of magnetic properties.

*Important note: Temperature resistance is determined by both grade, but also on the magnet's shape. Thin magnets (low Pc) risk losing magnetic properties under lower heat stress compared to rod magnets. Warning indicator in the table indicates a risk of irreversible loss for this particular item.

Table 6: Two magnets (attraction) - field collision
MW 5x25 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Lateral Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	4.57 kg / 10.08 pounds 6 167 Gs	0.69 kg / 1.51 pounds 686 g / 6.7 N	N/A
1 mm	2.97 kg / 6.55 pounds 9 909 Gs	0.45 kg / 0.98 pounds 446 g / 4.4 N	2.67 kg / 5.90 pounds ~0 Gs
2 mm	1.81 kg / 3.99 pounds 7 738 Gs	0.27 kg / 0.60 pounds 272 g / 2.7 N	1.63 kg / 3.60 pounds ~0 Gs
3 mm	1.08 kg / 2.37 pounds 5 965 Gs	0.16 kg / 0.36 pounds 162 g / 1.6 N	0.97 kg / 2.14 pounds ~0 Gs
5 mm	0.39 kg / 0.86 pounds 3 581 Gs	0.06 kg / 0.13 pounds 58 g / 0.6 N	0.35 kg / 0.77 pounds ~0 Gs
10 mm	0.05 kg / 0.11 pounds 1 266 Gs	0.01 kg / 0.02 pounds 7 g / 0.1 N	0.04 kg / 0.10 pounds ~0 Gs
20 mm	0.00 kg / 0.01 pounds 339 Gs	0.00 kg / 0.00 pounds 1 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs
50 mm	0.00 kg / 0.00 pounds 46 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 30 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 21 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 15 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 11 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 9 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 much further distance than a magnet and steel combination. The connection of magnet-to-magnet generates a stronger field and a wider radius of operation. Want to build a strong closure? Utilize two neodymiums instead of one magnet and a steel. Be careful that when bringing together two magnets, the impact force is extreme. The repulsion force is a bit weaker than the connection force, but still large.
*Field value in repulsion mode is approximately ~0 Gs at the geometric center of the gap (due to field cancellation).
Note: Figures demonstrate shear force of two identical magnets (friction coefficient ~0.15 for Ni-Ni layer).

Table 7: Safety (HSE) (electronics) - precautionary measures
MW 5x25 / N38

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

Powerful magnet radiation is a large risk to electronics and pacemakers. These magnets generate a field that destroys function of digital equipment. Remember: the unseen radiation passes through tissues and plastic. Exceptional care must be taken by people with cochlear implants and drug dispensers. Also at risk are: automatic timepieces, car keys, membranes, and displays. Avoid contact with magnetic cards, hard drives, or sensitive navigation tools.

Table 8: Dynamics (cracking risk) - warning
MW 5x25 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	11.16 km/h (3.10 m/s)	0.02 J
30 mm	19.32 km/h (5.37 m/s)	0.05 J
50 mm	24.94 km/h (6.93 m/s)	0.09 J
100 mm	35.27 km/h (9.80 m/s)	0.18 J

Magnetic elements are prone to chipping – a violent impact against metal can result in shattering. Watch the impact speed – a neodymium left loose becomes dangerous. Impact energy can cause material chips or dangerous crushing to fingers. Hold the magnet firmly during installation so it doesn't hit violently against the metal. A contact at a velocity of dozens of km/h almost guarantees destruction of the neodymium. Use safety goggles when handling with powerful specimens.

Table 9: Surface protection spec
MW 5x25 / 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. The silver nickel coating also serves an aesthetic function but is not fully waterproof.

Table 10: Electrical data (P_c)
MW 5x25 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	1 450 Mx	14.5 µWb
P_c Coefficient	1.55	High (Stable)

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

Table 11: Submerged application
MW 5x25 / N38

Environment	Effective steel pull	Effect
Air (land)	0.45 kg	Standard
Water (riverbed)	0.52 kg (+0.07 kg buoyancy gain)	+14.5%

Corrosion warning: Standard nickel requires drying after every contact with moisture; lack of maintenance will lead to rust spots.

Contrary to myths, water does not block the magnetic field. As a result, your magnet will pull a heavier object from the bottom than if you lifted it in the air.

1. Shear force

*Warning: On a vertical surface, the magnet holds only a fraction of its perpendicular strength.

2. Steel thickness impact

*Thin steel (e.g. 0.5mm PC case) drastically limits the holding force.

3. Heat tolerance

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

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 1.55

The chart above illustrates the magnetic characteristics of the material within the second quadrant of the hysteresis loop. The solid red line represents the demagnetization curve (material potential), while the dashed blue line is the load line based on the magnet's geometry. The P_c (Permeance Coefficient), also known as the load line slope, is a dimensionless value that describes the relationship between the magnet's shape and its magnetic stability. The intersection of these two lines (the black dot) is the operating point — it determines the actual magnetic flux density generated by the magnet in this specific configuration. A higher P_c value means the magnet is more 'slender' (tall relative to its area), resulting in a higher operating point and better resistance to irreversible demagnetization caused by external fields or temperature. A value of 0.42 is relatively low (typical for flat magnets), meaning the operating point is closer to the 'knee' of the curve — caution is advised when operating at temperatures near the maximum limit to avoid strength loss.

Technical and environmental data

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%

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: 010086-2026

Magnet Unit Converter

Pulling force

Kilograms (kg)

Newtons (N)

Pounds (lbs)

Field Strength

Gauss (Gs)

Input a figure in just one field to receive results for the other units at once.

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The presented product is an incredibly powerful cylinder magnet, composed of durable NdFeB material, which, with dimensions of Ø5x25 mm, guarantees the highest energy density. This specific item is characterized by high dimensional repeatability and professional build quality, making it a perfect solution for the most demanding engineers and designers. As a cylindrical magnet with significant force (approx. 0.45 kg), this product is available off-the-shelf from our warehouse in Poland, ensuring quick order fulfillment. Furthermore, its triple-layer Ni-Cu-Ni coating shields it against corrosion in standard operating conditions, ensuring an aesthetic appearance and durability for years.

This model is perfect for building generators, advanced sensors, and efficient magnetic separators, where field concentration on a small surface counts. Thanks to the high power of 4.41 N with a weight of only 3.68 g, this cylindrical magnet is indispensable in electronics and wherever low weight is crucial.

Due to the delicate structure of the ceramic sinter, 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 automation, specialized industrial adhesives are used, which are safe for nickel and fill the gap, guaranteeing high repeatability of the connection.

Magnets N38 are strong enough for the majority of applications in modeling and machine building, where extreme miniaturization with maximum force is not required. If you need the strongest magnets in the same volume (Ø5x25), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard in continuous sale in our warehouse.

This model is characterized by dimensions Ø5x25 mm, which, at a weight of 3.68 g, makes it an element with impressive magnetic energy density. The key parameter here is the holding force amounting to approximately 0.45 kg (force ~4.41 N), which, with such defined dimensions, proves the high grade of the NdFeB material. The product has a [NiCuNi] coating, which secures it against external factors, giving it an aesthetic, silvery shine.

This rod magnet is magnetized axially (along the height of 25 mm), which means that the N and S poles are located on the flat, circular surfaces. Thanks to this, the magnet can be easily glued into a hole and achieve a strong field on the front surface. On request, we can also produce versions magnetized through the diameter if your project requires it.

Advantages as well as disadvantages of Nd₂Fe₁₄B magnets.

Pros

Besides their immense magnetic power, neodymium magnets offer the following advantages:

They retain full power for nearly ten years – the loss is just ~1% (in theory),
They do not lose their magnetic properties even under strong external field,
By applying a smooth layer of gold, the element presents an professional look,
Magnetic induction on the working layer of the magnet is strong,
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...
In view of the option of flexible shaping and adaptation to specialized projects, magnetic components can be modeled in a variety of geometric configurations, which increases their versatility,
Wide application in advanced technology sectors – they find application in mass storage devices, drive modules, medical equipment, as well as other advanced devices.
Relatively small size with high pulling force – neodymium magnets offer high power in small dimensions, which makes them useful in compact constructions

Weaknesses

Drawbacks and weaknesses of neodymium magnets: tips and applications.

To avoid cracks under impact, we recommend 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 strength decreases (depending on the size and shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
Due to the susceptibility of magnets to corrosion in a humid environment, we suggest using waterproof magnets made of rubber, plastic or other material resistant to moisture, when using outdoors
We suggest cover - magnetic mechanism, due to difficulties in realizing nuts inside the magnet and complicated shapes.
Potential hazard related to microscopic parts of magnets pose a threat, when accidentally swallowed, which becomes key in the context of child health protection. It is also worth noting that small elements of these magnets are able to complicate diagnosis medical in case of swallowing.
Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications

Holding force characteristics

Maximum holding power of the magnet – what contributes to it?

The declared magnet strength represents the limit force, recorded under laboratory conditions, meaning:

using a sheet made of mild steel, serving as a circuit closing element
with a thickness no less than 10 mm
with an ground touching surface
under conditions of ideal adhesion (metal-to-metal)
under vertical force direction (90-degree angle)
at temperature room level

Lifting capacity in practice – influencing factors

Holding efficiency is influenced by working environment parameters, including (from most important):

Gap between surfaces – even a fraction of a millimeter of separation (caused e.g. by veneer or unevenness) significantly weakens the pulling force, often by half at just 0.5 mm.
Force direction – remember that the magnet holds strongest perpendicularly. Under sliding down, the holding force drops significantly, often to levels of 20-30% of the maximum value.
Wall thickness – the thinner the sheet, the weaker the hold. Part of the magnetic field passes through the material instead of converting into lifting capacity.
Chemical composition of the base – low-carbon steel gives the best results. Alloy admixtures lower magnetic properties and holding force.
Smoothness – ideal contact is possible only on smooth steel. Rough texture create air cushions, reducing force.
Operating temperature – neodymium magnets have a negative temperature coefficient. At higher temperatures they are weaker, and in frost they can be stronger (up to a certain limit).

Lifting capacity testing was carried out on plates with a smooth surface of optimal thickness, under a 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 minimal clearance between the magnet and the plate lowers the holding force.

Safety rules for work with neodymium magnets

Heat warning

Watch the temperature. Heating the magnet above 80 degrees Celsius will destroy its properties and strength.

Choking Hazard

Always keep magnets away from children. Ingestion danger is high, and the effects of magnets clamping inside the body are life-threatening.

Handling guide

Exercise caution. Rare earth magnets act from a long distance and connect with massive power, often quicker than you can react.

Warning for allergy sufferers

Studies show that nickel (the usual finish) is a common allergen. If you have an allergy, refrain from touching magnets with bare hands and opt for versions in plastic housing.

Data carriers

Equipment safety: Neodymium magnets can ruin data carriers and sensitive devices (pacemakers, medical aids, timepieces).

Keep away from electronics

Navigation devices and smartphones are highly sensitive to magnetic fields. Close proximity with a strong magnet can decalibrate the sensors in your phone.

Mechanical processing

Fire hazard: Neodymium dust is highly flammable. Avoid machining magnets without safety gear as this risks ignition.

Fragile material

Beware of splinters. Magnets can fracture upon violent connection, launching shards into the air. We recommend safety glasses.

Serious injuries

Danger of trauma: The pulling power is so great that it can result in hematomas, pinching, and broken bones. Use thick gloves.

Warning for heart patients

Warning for patients: Strong magnetic fields disrupt medical devices. Keep minimum 30 cm distance or ask another person to handle the magnets.

Safety First! Details about risks in the article: Safety of working with magnets.

MW 5x25 / N38 - cylindrical magnet

Technical - MW 5x25 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Engineering modeling of the assembly - technical parameters

Table 1: Static pull force (force vs distance) - characteristics MW 5x25 / N38

Table 2: Shear load (wall) MW 5x25 / N38

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces MW 5x25 / N38

Table 4: Material efficiency (saturation) - power losses MW 5x25 / N38

Table 5: Working in heat (material behavior) - power drop MW 5x25 / N38

Table 6: Two magnets (attraction) - field collision MW 5x25 / N38

Table 7: Safety (HSE) (electronics) - precautionary measures MW 5x25 / N38

Table 8: Dynamics (cracking risk) - warning MW 5x25 / N38

Table 9: Surface protection spec MW 5x25 / N38

Table 10: Electrical data (Pc) MW 5x25 / N38

Table 11: Submerged application MW 5x25 / N38

1. Shear force

2. Steel thickness impact

3. Heat tolerance

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

Elemental analysis

Ecology and recycling (GPSR)

Pulling force

Field Strength

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Advantages as well as disadvantages of Nd2Fe14B magnets.

Pros

Weaknesses

Holding force characteristics

Maximum holding power of the magnet – what contributes to it?

Lifting capacity in practice – influencing factors

Safety rules for work with neodymium magnets

Heat warning

Choking Hazard

Handling guide

Warning for allergy sufferers

Data carriers

Keep away from electronics

Mechanical processing

Fragile material

Serious injuries

Warning for heart patients

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (force vs distance) - characteristics
MW 5x25 / N38

Table 2: Shear load (wall)
MW 5x25 / N38

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces
MW 5x25 / N38

Table 4: Material efficiency (saturation) - power losses
MW 5x25 / N38

Table 5: Working in heat (material behavior) - power drop
MW 5x25 / N38

Table 6: Two magnets (attraction) - field collision
MW 5x25 / N38

Table 7: Safety (HSE) (electronics) - precautionary measures
MW 5x25 / N38

Table 8: Dynamics (cracking risk) - warning
MW 5x25 / N38

Table 9: Surface protection spec
MW 5x25 / N38

Table 10: Electrical data (P_c)
MW 5x25 / N38

Table 11: Submerged application
MW 5x25 / N38

Advantages as well as disadvantages of Nd₂Fe₁₄B magnets.