Product available Ships tomorrow

MW 25x5 / 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 010049

GTIN/EAN: 5906301810483

5.00

Diameter Ø

25 mm [±0,1 mm]

Height

5 mm [±0,1 mm]

Weight

18.41 g

Magnetization Direction

↑ axial

Load capacity

7.98 kg / 78.25 N

Magnetic Induction

230.20 mT / 2302 Gs

Coating

[NiCuNi] Nickel

product parameters »

8.39 ZŁ with VAT / pcs + price for transport

6.82 ZŁ net + 23% VAT / pcs

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Technical data - MW 25x5 / N38 - cylindrical magnet

Specification / characteristics - MW 25x5 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010049
GTIN/EAN	5906301810483
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	25 mm [±0,1 mm]
Height	5 mm [±0,1 mm]
Weight	18.41 g
Magnetization Direction	↑ axial
Load capacity ~ ?	7.98 kg / 78.25 N
Magnetic Induction ~ ?	230.20 mT / 2302 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 25x5 / 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 analysis of the assembly - data

Presented values represent the outcome of a mathematical calculation. Values were calculated on models for the material Nd₂Fe₁₄B. Actual performance may deviate from the simulation results. Use these data as a preliminary roadmap during assembly planning.

Table 1: Static pull force (force vs gap) - interaction chart
MW 25x5 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	2302 Gs 230.2 mT	7.98 kg / 17.59 LBS 7980.0 g / 78.3 N	warning
1 mm	2189 Gs 218.9 mT	7.21 kg / 15.91 LBS 7214.9 g / 70.8 N	warning
2 mm	2050 Gs 205.0 mT	6.33 kg / 13.95 LBS 6329.3 g / 62.1 N	warning
3 mm	1895 Gs 189.5 mT	5.41 kg / 11.93 LBS 5410.7 g / 53.1 N	warning
5 mm	1570 Gs 157.0 mT	3.72 kg / 8.19 LBS 3715.4 g / 36.4 N	warning
10 mm	890 Gs 89.0 mT	1.19 kg / 2.63 LBS 1192.8 g / 11.7 N	safe
15 mm	495 Gs 49.5 mT	0.37 kg / 0.81 LBS 368.5 g / 3.6 N	safe
20 mm	288 Gs 28.8 mT	0.12 kg / 0.28 LBS 124.8 g / 1.2 N	safe
30 mm	116 Gs 11.6 mT	0.02 kg / 0.04 LBS 20.2 g / 0.2 N	safe
50 mm	31 Gs 3.1 mT	0.00 kg / 0.00 LBS 1.4 g / 0.0 N	safe

Pulling power weakens significantly with every subsequent millimeter of distance. Remember that even a very thin break (e.g., dirt, paint, dust) strongly weakens the grip. Magnetic products hold most effectively at the point of direct contact; air break drastically cuts the power. Analyze how quickly the pull force plummet, when the product does not adhere directly to the steel surface. When designing the assembly, eliminate redundant distances.

Table 2: Sliding capacity (vertical surface)
MW 25x5 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	1.60 kg / 3.52 LBS 1596.0 g / 15.7 N
1 mm	Stal (~0.2)	1.44 kg / 3.18 LBS 1442.0 g / 14.1 N
2 mm	Stal (~0.2)	1.27 kg / 2.79 LBS 1266.0 g / 12.4 N
3 mm	Stal (~0.2)	1.08 kg / 2.39 LBS 1082.0 g / 10.6 N
5 mm	Stal (~0.2)	0.74 kg / 1.64 LBS 744.0 g / 7.3 N
10 mm	Stal (~0.2)	0.24 kg / 0.52 LBS 238.0 g / 2.3 N
15 mm	Stal (~0.2)	0.07 kg / 0.16 LBS 74.0 g / 0.7 N
20 mm	Stal (~0.2)	0.02 kg / 0.05 LBS 24.0 g / 0.2 N
30 mm	Stal (~0.2)	0.00 kg / 0.01 LBS 4.0 g / 0.0 N
50 mm	Stal (~0.2)	0.00 kg / 0.00 LBS 0.0 g / 0.0 N

This section shows the approximate holding capacity necessary to cause the sliding of the magnet downwards along a vertical metal surface (considering standard friction). The holding force varies with the air gap between the magnet and the metal.

Table 3: Wall mounting (sliding) - behavior on slippery surfaces
MW 25x5 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	2.39 kg / 5.28 LBS 2394.0 g / 23.5 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	1.60 kg / 3.52 LBS 1596.0 g / 15.7 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.80 kg / 1.76 LBS 798.0 g / 7.8 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	3.99 kg / 8.80 LBS 3990.0 g / 39.1 N

When hanging a element on a vertical plane (e.g., a fridge), it you can count on barely approx. 20%-30% of nominal attraction strength. Gravitational force as well as a weak degree of grip mean that holders slide down easier than they pop off the substrate. Designing a vertical fastening? Consider that the sliding force is noticeably lower than the maximum static pull force. On a slippery surface, the holder will slip down under a much lighter load. Using a rubber pad can drastically increase the grip.

Table 4: Material efficiency (substrate influence) - power losses
MW 25x5 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.80 kg / 1.76 LBS 798.0 g / 7.8 N
1 mm	25%	2.00 kg / 4.40 LBS 1995.0 g / 19.6 N
2 mm	50%	3.99 kg / 8.80 LBS 3990.0 g / 39.1 N
3 mm	75%	5.99 kg / 13.19 LBS 5985.0 g / 58.7 N
5 mm	100%	7.98 kg / 17.59 LBS 7980.0 g / 78.3 N
10 mm	100%	7.98 kg / 17.59 LBS 7980.0 g / 78.3 N
11 mm	100%	7.98 kg / 17.59 LBS 7980.0 g / 78.3 N
12 mm	100%	7.98 kg / 17.59 LBS 7980.0 g / 78.3 N

A too thin steel cannot take in the full magnetic flux, which squanders power of the holder. If you mount a strong magnet to a too thin substrate, the field will penetrate right through and the pull force will drop sharply. To achieve full efficiency of this magnet's power, you require a sufficiently solid backing of metal. The material oversaturation means that on delicate walls (e.g., car bodies), the product holds weaker. We advise picking the steel thickness based on the following data.

Table 5: Thermal resistance (stability) - power drop
MW 25x5 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	7.98 kg / 17.59 LBS 7980.0 g / 78.3 N	OK
40 °C	-2.2%	7.80 kg / 17.21 LBS 7804.4 g / 76.6 N	OK
60 °C	-4.4%	7.63 kg / 16.82 LBS 7628.9 g / 74.8 N
80 °C	-6.6%	7.45 kg / 16.43 LBS 7453.3 g / 73.1 N
100 °C	-28.8%	5.68 kg / 12.53 LBS 5681.8 g / 55.7 N

Classic neodymiums irreversibly lose strength above the temperature limit. Protect against heat – high temperature can irreversibly destroy this product. With increasing heat, the neodymium's power momentarily drops. Avoid using this product near heat sources higher than its working range. Exceeding the critical threshold will lead to destruction of magnetism.

*Important note: Heat tolerance is determined by both grade, but also on the magnet's shape. Flat magnets (low permeance coefficient) are more susceptible to demagnetization at lower temperatures than long magnets. The danger warning in the table signals permanent field degradation for this specific geometry.

Table 6: Two magnets (repulsion) - forces in the system
MW 25x5 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Lateral Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	16.03 kg / 35.34 LBS 3 871 Gs	2.40 kg / 5.30 LBS 2405 g / 23.6 N	N/A
1 mm	15.31 kg / 33.75 LBS 4 498 Gs	2.30 kg / 5.06 LBS 2296 g / 22.5 N	13.78 kg / 30.38 LBS ~0 Gs
2 mm	14.49 kg / 31.95 LBS 4 377 Gs	2.17 kg / 4.79 LBS 2174 g / 21.3 N	13.05 kg / 28.76 LBS ~0 Gs
3 mm	13.62 kg / 30.03 LBS 4 243 Gs	2.04 kg / 4.50 LBS 2043 g / 20.0 N	12.26 kg / 27.03 LBS ~0 Gs
5 mm	11.79 kg / 26.00 LBS 3 948 Gs	1.77 kg / 3.90 LBS 1769 g / 17.4 N	10.61 kg / 23.40 LBS ~0 Gs
10 mm	7.46 kg / 16.46 LBS 3 141 Gs	1.12 kg / 2.47 LBS 1120 g / 11.0 N	6.72 kg / 14.81 LBS ~0 Gs
20 mm	2.40 kg / 5.28 LBS 1 780 Gs	0.36 kg / 0.79 LBS 359 g / 3.5 N	2.16 kg / 4.75 LBS ~0 Gs
50 mm	0.10 kg / 0.21 LBS 355 Gs	0.01 kg / 0.03 LBS 14 g / 0.1 N	0.09 kg / 0.19 LBS ~0 Gs
60 mm	0.04 kg / 0.09 LBS 231 Gs	0.01 kg / 0.01 LBS 6 g / 0.1 N	0.04 kg / 0.08 LBS ~0 Gs
70 mm	0.02 kg / 0.04 LBS 158 Gs	0.00 kg / 0.01 LBS 3 g / 0.0 N	0.02 kg / 0.04 LBS ~0 Gs
80 mm	0.01 kg / 0.02 LBS 112 Gs	0.00 kg / 0.00 LBS 1 g / 0.0 N	0.00 kg / 0.00 LBS ~0 Gs
90 mm	0.01 kg / 0.01 LBS 82 Gs	0.00 kg / 0.00 LBS 1 g / 0.0 N	0.00 kg / 0.00 LBS ~0 Gs
100 mm	0.00 kg / 0.01 LBS 62 Gs	0.00 kg / 0.00 LBS 0 g / 0.0 N	0.00 kg / 0.00 LBS ~0 Gs

Two magnetic products interact from a much further distance than a magnet and sheet setup. Such a system of two magnets produces a massive flux and a larger range of performance. Planning to create a powerful holder? Apply two magnets instead of one magnet and a steel. Remember that when connecting a pair of magnets, the collision energy is huge. The repulsion force is slightly lower than the connection force, but still significant.
*Field value between like poles is approximately ~0 Gs at the midpoint of the gap (resulting from vector opposition).
Attention: Calculations demonstrate friction force of dual matching magnets (friction coefficient ~0.15 for Ni-Ni coating).

Table 7: Hazards (implants) - precautionary measures
MW 25x5 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	10.0 cm
Hearing aid	10 Gs (1.0 mT)	8.0 cm
Mechanical watch	20 Gs (2.0 mT)	6.0 cm
Mobile device	40 Gs (4.0 mT)	5.0 cm
Remote	50 Gs (5.0 mT)	4.5 cm
Payment card	400 Gs (40.0 mT)	2.0 cm
HDD hard drive	600 Gs (60.0 mT)	1.5 cm

Extremely neodym field is a large risk to electronics as well as pacemakers. These NdFeB products produce a flux that destroys function of digital equipment. Remember: the unseen radiation passes through tissues and glass. Special caution must be exercised by people with hearing aids and drug dispensers. Also at risk are: automatic timepieces, remotes, speakers, and displays. Do not bring the product near payment cards, HDD media, or precise measuring instruments.

Table 8: Dynamics (kinetic energy) - collision effects
MW 25x5 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	22.87 km/h (6.35 m/s)	0.37 J
30 mm	36.43 km/h (10.12 m/s)	0.94 J
50 mm	46.96 km/h (13.04 m/s)	1.57 J
100 mm	66.40 km/h (18.44 m/s)	3.13 J

Neodymium magnets are delicate – a collision with steel can result in shattering. Control the attraction moment – a neodymium left loose turns into a projectile. Striking energy can trigger coating fragments or injury to skin. Hold the magnet firmly during bringing near metal so it doesn't hit with great force against the metal. A contact at a velocity of dozens of km/h almost guarantees destruction of the magnet. Wear safety glasses when playing with large magnets.

Table 9: Anti-corrosion coating durability
MW 25x5 / 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. Improper coating selection is the most common cause of magnet failure over time.

Table 10: Electrical data (P_c)
MW 25x5 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	13 107 Mx	131.1 µWb
P_c Coefficient	0.29	Low (Flat)

Flux value emitted by the pole surface. Key data for generator designers and motors. The P_c coefficient defines the magnet's operating point.

Table 11: Underwater work (magnet fishing)
MW 25x5 / N38

Environment	Effective steel pull	Effect
Air (land)	7.98 kg	Standard
Water (riverbed)	9.14 kg (+1.16 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.

The magnetic field penetrates through water without any losses. Note: for permanent underwater work, we recommend magnets with an anti-corrosive (epoxy) coating.

1. Wall mount (shear)

*Warning: On a vertical surface, the magnet holds merely a fraction of its nominal pull.

2. Efficiency vs thickness

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

3. Heat tolerance

*For standard magnets, the safety limit is 80°C.

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 0.29

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%

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: 010049-2026

Measurement Calculator

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Pounds (lbs)

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MPL 25x10x5 / N38 - lamellar magnet

4.66 ZŁ brutto / pcs

The offered product is an incredibly powerful cylindrical magnet, produced from durable NdFeB material, which, with dimensions of Ø25x5 mm, guarantees the highest energy density. This specific item is characterized by high dimensional repeatability and industrial build quality, making it an excellent solution for the most demanding engineers and designers. As a magnetic rod with significant force (approx. 7.98 kg), this product is available off-the-shelf from our warehouse in Poland, ensuring lightning-fast order fulfillment. Additionally, its Ni-Cu-Ni coating secures it against corrosion in standard operating conditions, ensuring an aesthetic appearance and durability for years.

It successfully proves itself in DIY projects, advanced automation, and broadly understood industry, serving as a fastening or actuating element. Thanks to the pull force of 78.25 N with a weight of only 18.41 g, this cylindrical magnet is indispensable in electronics and wherever every gram matters.

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 professional component. To ensure stability 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 strong enough for the majority of applications in modeling and machine building, where excessive miniaturization with maximum force is not required. If you need even stronger magnets in the same volume (Ø25x5), 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 25 mm and height 5 mm. The value of 78.25 N means that the magnet is capable of holding a weight many times exceeding its own mass of 18.41 g. The product has a [NiCuNi] coating, which protects the surface against external factors, giving it an aesthetic, silvery shine.

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

Strengths and weaknesses of neodymium magnets.

Strengths

Apart from their consistent holding force, neodymium magnets have these key benefits:

They retain attractive force for nearly 10 years – the loss is just ~1% (according to analyses),
They retain their magnetic properties even under strong external field,
A magnet with a metallic nickel surface has better aesthetics,
Neodymium magnets generate maximum magnetic induction on a contact point, which allows for strong attraction,
Through (adequate) combination of ingredients, they can achieve high thermal resistance, allowing for functioning at temperatures approaching 230°C and above...
Thanks to versatility in designing and the ability to modify to unusual requirements,
Fundamental importance in advanced technology sectors – they are commonly used in data components, drive modules, precision medical tools, and multitasking production systems.
Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in tiny dimensions, which makes them useful in small systems

Weaknesses

Disadvantages of NdFeB magnets:

Susceptibility to cracking is one of their disadvantages. Upon strong impact they can fracture. We recommend keeping them in a strong case, which not only protects them against impacts but also increases their durability
NdFeB magnets lose power when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop of power (a factor is the shape and dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are very resistant to heat
When exposed to humidity, magnets usually rust. To use them in conditions outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which secure oxidation and corrosion.
Limited possibility of making nuts in the magnet and complicated shapes - preferred is a housing - magnet mounting.
Health risk resulting from small fragments of magnets pose a threat, in case of ingestion, which gains importance in the context of child health protection. Additionally, small elements of these magnets are able to complicate diagnosis medical in case of swallowing.
Higher cost of purchase is one of the disadvantages compared to ceramic magnets, especially in budget applications

Pull force analysis

Maximum magnetic pulling force – what affects it?

The specified lifting capacity represents the maximum value, obtained under laboratory conditions, specifically:

on a plate made of mild steel, effectively closing the magnetic flux
possessing a thickness of at least 10 mm to avoid saturation
characterized by lack of roughness
under conditions of no distance (metal-to-metal)
for force applied at a right angle (pull-off, not shear)
at conditions approx. 20°C

Determinants of lifting force in real conditions

Real force is affected by specific conditions, such as (from most important):

Gap between surfaces – every millimeter of separation (caused e.g. by veneer or dirt) diminishes the pulling force, often by half at just 0.5 mm.
Loading method – declared lifting capacity refers to detachment vertically. When applying parallel force, the magnet exhibits significantly lower power (often approx. 20-30% of maximum force).
Substrate thickness – to utilize 100% power, the steel must be adequately massive. Thin sheet limits the lifting capacity (the magnet "punches through" it).
Steel grade – ideal substrate is pure iron steel. Hardened steels may have worse magnetic properties.
Surface quality – the more even the plate, the better the adhesion and stronger the hold. Unevenness creates an air distance.
Temperature – heating the magnet causes a temporary drop of induction. Check the maximum operating temperature for a given model.

Lifting capacity testing was performed on a smooth plate of optimal thickness, under perpendicular forces, whereas under shearing force the holding force is lower. In addition, even a slight gap between the magnet’s surface and the plate decreases the load capacity.

H&S for magnets

Combustion hazard

Powder created during cutting of magnets is self-igniting. Do not drill into magnets unless you are an expert.

Magnetic media

Very strong magnetic fields can corrupt files on credit cards, hard drives, and storage devices. Maintain a gap of min. 10 cm.

GPS Danger

A powerful magnetic field interferes with the operation of magnetometers in smartphones and GPS navigation. Do not bring magnets close to a device to prevent breaking the sensors.

Conscious usage

Before starting, check safety instructions. Sudden snapping can destroy the magnet or hurt your hand. Think ahead.

ICD Warning

Individuals with a ICD must keep an absolute distance from magnets. The magnetic field can interfere with the operation of the implant.

No play value

Always keep magnets out of reach of children. Choking hazard is high, and the effects of magnets clamping inside the body are very dangerous.

Do not overheat magnets

Do not overheat. Neodymium magnets are sensitive to heat. If you require resistance above 80°C, look for special high-temperature series (H, SH, UH).

Pinching danger

Watch your fingers. Two powerful magnets will snap together instantly with a force of several hundred kilograms, destroying anything in their path. Be careful!

Eye protection

Watch out for shards. Magnets can explode upon uncontrolled impact, ejecting shards into the air. Eye protection is mandatory.

Avoid contact if allergic

A percentage of the population suffer from a sensitization to nickel, which is the standard coating for neodymium magnets. Prolonged contact might lead to a rash. It is best to use safety gloves.

Attention! Need more info? Check our post: Are neodymium magnets dangerous?

MW 25x5 / N38 - cylindrical magnet

Technical data - MW 25x5 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical analysis of the assembly - data

Table 1: Static pull force (force vs gap) - interaction chart MW 25x5 / N38

Table 2: Sliding capacity (vertical surface) MW 25x5 / N38

Table 3: Wall mounting (sliding) - behavior on slippery surfaces MW 25x5 / N38

Table 4: Material efficiency (substrate influence) - power losses MW 25x5 / N38

Table 5: Thermal resistance (stability) - power drop MW 25x5 / N38

Table 6: Two magnets (repulsion) - forces in the system MW 25x5 / N38

Table 7: Hazards (implants) - precautionary measures MW 25x5 / N38

Table 8: Dynamics (kinetic energy) - collision effects MW 25x5 / N38

Table 9: Anti-corrosion coating durability MW 25x5 / N38

Table 10: Electrical data (Pc) MW 25x5 / N38

Table 11: Underwater work (magnet fishing) MW 25x5 / N38

1. Wall mount (shear)

2. Efficiency vs thickness

3. Heat tolerance

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

Chemical composition

Sustainability

Force (pull)

Magnetic Field

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Strengths and weaknesses of neodymium magnets.

Strengths

Weaknesses

Pull force analysis

Maximum magnetic pulling force – what affects it?

Determinants of lifting force in real conditions

H&S for magnets

Combustion hazard

Magnetic media

GPS Danger

Conscious usage

ICD Warning

No play value

Do not overheat magnets

Pinching danger

Eye protection

Avoid contact if allergic

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (force vs gap) - interaction chart
MW 25x5 / N38

Table 2: Sliding capacity (vertical surface)
MW 25x5 / N38

Table 3: Wall mounting (sliding) - behavior on slippery surfaces
MW 25x5 / N38

Table 4: Material efficiency (substrate influence) - power losses
MW 25x5 / N38

Table 5: Thermal resistance (stability) - power drop
MW 25x5 / N38

Table 6: Two magnets (repulsion) - forces in the system
MW 25x5 / N38

Table 7: Hazards (implants) - precautionary measures
MW 25x5 / N38

Table 8: Dynamics (kinetic energy) - collision effects
MW 25x5 / N38

Table 9: Anti-corrosion coating durability
MW 25x5 / N38

Table 10: Electrical data (P_c)
MW 25x5 / N38

Table 11: Underwater work (magnet fishing)
MW 25x5 / N38