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MW 5x25 / 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 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

view parameters »

2.31 ZŁ with VAT / pcs + price for transport

1.880 ZŁ net + 23% VAT / pcs

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Physical properties - 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 product - report

The following values represent the result of a engineering analysis. Values rely on algorithms for the class Nd₂Fe₁₄B. Operational performance might slightly deviate from the simulation results. Use these data as a reference point for designers.

Table 1: Static pull force (force vs gap) - power drop
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 LBS 450.0 g / 4.4 N	safe
1 mm	3869 Gs 386.9 mT	0.18 kg / 0.39 LBS 178.4 g / 1.8 N	safe
2 mm	2300 Gs 230.0 mT	0.06 kg / 0.14 LBS 63.1 g / 0.6 N	safe
3 mm	1412 Gs 141.2 mT	0.02 kg / 0.05 LBS 23.8 g / 0.2 N	safe
5 mm	633 Gs 63.3 mT	0.00 kg / 0.01 LBS 4.8 g / 0.0 N	safe
10 mm	169 Gs 16.9 mT	0.00 kg / 0.00 LBS 0.3 g / 0.0 N	safe
15 mm	72 Gs 7.2 mT	0.00 kg / 0.00 LBS 0.1 g / 0.0 N	safe
20 mm	38 Gs 3.8 mT	0.00 kg / 0.00 LBS 0.0 g / 0.0 N	safe
30 mm	15 Gs 1.5 mT	0.00 kg / 0.00 LBS 0.0 g / 0.0 N	safe
50 mm	4 Gs 0.4 mT	0.00 kg / 0.00 LBS 0.0 g / 0.0 N	safe

Pulling power drops drastically per each millimeter of spacing. Note that even a very thin break (e.g., contamination, paint, dust) noticeably diminishes the holding power. Magnets operate optimally at the point of direct contact; gap weakens the power. Analyze how rapidly the load capacity drop, when the magnet does not adhere flatly to the metal substrate. When designing the assembly, avoid additional spacers.

Table 2: Vertical capacity (wall)
MW 5x25 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	0.09 kg / 0.20 LBS 90.0 g / 0.9 N
1 mm	Stal (~0.2)	0.04 kg / 0.08 LBS 36.0 g / 0.4 N
2 mm	Stal (~0.2)	0.01 kg / 0.03 LBS 12.0 g / 0.1 N
3 mm	Stal (~0.2)	0.00 kg / 0.01 LBS 4.0 g / 0.0 N
5 mm	Stal (~0.2)	0.00 kg / 0.00 LBS 0.0 g / 0.0 N
10 mm	Stal (~0.2)	0.00 kg / 0.00 LBS 0.0 g / 0.0 N
15 mm	Stal (~0.2)	0.00 kg / 0.00 LBS 0.0 g / 0.0 N
20 mm	Stal (~0.2)	0.00 kg / 0.00 LBS 0.0 g / 0.0 N
30 mm	Stal (~0.2)	0.00 kg / 0.00 LBS 0.0 g / 0.0 N
50 mm	Stal (~0.2)	0.00 kg / 0.00 LBS 0.0 g / 0.0 N

The following data presents the estimated force necessary to start the sliding of the magnet downwards along a upright steel wall (considering standard friction). The holding force is a function of the air gap between the magnet and the metal.

Table 3: Wall mounting (sliding) - vertical pull
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 LBS 135.0 g / 1.3 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.09 kg / 0.20 LBS 90.0 g / 0.9 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.05 kg / 0.10 LBS 45.0 g / 0.4 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	0.23 kg / 0.50 LBS 225.0 g / 2.2 N

When mounting a magnet on a vertical surface (e.g., a car body), it you can count on barely approx. 20%-30% of its nominal power. Gravity as well as a weak degree of grip influence the fact that magnets slide down faster than they pop off the substrate. Planning a vertical fastening? Consider that the shear force is much weaker than the maximum static pull force. On a smooth steel, the element will slide down under a significantly smaller load. Application of an anti-slip pad can effectively increase the grip.

Table 4: Material efficiency (substrate influence) - 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 LBS 45.0 g / 0.4 N
1 mm	25%	0.11 kg / 0.25 LBS 112.5 g / 1.1 N
2 mm	50%	0.23 kg / 0.50 LBS 225.0 g / 2.2 N
3 mm	75%	0.34 kg / 0.74 LBS 337.5 g / 3.3 N
5 mm	100%	0.45 kg / 0.99 LBS 450.0 g / 4.4 N
10 mm	100%	0.45 kg / 0.99 LBS 450.0 g / 4.4 N
11 mm	100%	0.45 kg / 0.99 LBS 450.0 g / 4.4 N
12 mm	100%	0.45 kg / 0.99 LBS 450.0 g / 4.4 N

A thin sheet is unable to take in the full magnetic flux, which weakens actual performance of the holder. Should you attach a powerful product to a weak sheet, the flux will pass right through and the attraction force will be weaker. To achieve the maximum of this magnet's power, you need a suitably thick element of metal. The saturation phenomenon means that on sheet metal structures (e.g., appliance housings), the product works worse. We recommend selecting the steel thickness from these parameters.

Table 5: Working in heat (material behavior) - thermal limit
MW 5x25 / N38

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

Ordinary NdFeB products irreversibly lose parameters after exceeding the maximum temperature. Avoid high temperatures – excessive heat can irreversibly destroy this product. With every degree above norm, the neodymium's force momentarily drops. Refrain from using this product near heat sources higher than its working range. Exceeding the critical threshold will result in permanent loss of magnetic properties.

*Technical advisory: Thermal stability is determined by both grade, and the Permeance Coefficient Pc. Thin magnets (low permeance coefficient) are more susceptible to demagnetization sooner than long magnets. Warning indicator in the table signals a risk of irreversible loss for this particular item.

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

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	4.57 kg / 10.08 LBS 6 167 Gs	0.69 kg / 1.51 LBS 686 g / 6.7 N	N/A
1 mm	2.97 kg / 6.55 LBS 9 909 Gs	0.45 kg / 0.98 LBS 446 g / 4.4 N	2.67 kg / 5.90 LBS ~0 Gs
2 mm	1.81 kg / 3.99 LBS 7 738 Gs	0.27 kg / 0.60 LBS 272 g / 2.7 N	1.63 kg / 3.60 LBS ~0 Gs
3 mm	1.08 kg / 2.37 LBS 5 965 Gs	0.16 kg / 0.36 LBS 162 g / 1.6 N	0.97 kg / 2.14 LBS ~0 Gs
5 mm	0.39 kg / 0.86 LBS 3 581 Gs	0.06 kg / 0.13 LBS 58 g / 0.6 N	0.35 kg / 0.77 LBS ~0 Gs
10 mm	0.05 kg / 0.11 LBS 1 266 Gs	0.01 kg / 0.02 LBS 7 g / 0.1 N	0.04 kg / 0.10 LBS ~0 Gs
20 mm	0.00 kg / 0.01 LBS 339 Gs	0.00 kg / 0.00 LBS 1 g / 0.0 N	0.00 kg / 0.00 LBS ~0 Gs
50 mm	0.00 kg / 0.00 LBS 46 Gs	0.00 kg / 0.00 LBS 0 g / 0.0 N	0.00 kg / 0.00 LBS ~0 Gs
60 mm	0.00 kg / 0.00 LBS 30 Gs	0.00 kg / 0.00 LBS 0 g / 0.0 N	0.00 kg / 0.00 LBS ~0 Gs
70 mm	0.00 kg / 0.00 LBS 21 Gs	0.00 kg / 0.00 LBS 0 g / 0.0 N	0.00 kg / 0.00 LBS ~0 Gs
80 mm	0.00 kg / 0.00 LBS 15 Gs	0.00 kg / 0.00 LBS 0 g / 0.0 N	0.00 kg / 0.00 LBS ~0 Gs
90 mm	0.00 kg / 0.00 LBS 11 Gs	0.00 kg / 0.00 LBS 0 g / 0.0 N	0.00 kg / 0.00 LBS ~0 Gs
100 mm	0.00 kg / 0.00 LBS 9 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 significantly greater distance than a neodymium and metal combination. The connection of magnet-to-magnet generates a stronger field and a larger range of operation. Want to build a strong closure? Utilize two neodymiums instead of a neodymium and a steel. Be careful that when connecting a pair of magnets, the collision energy is extreme. The levitation is slightly lower than the attraction, but still impressive.
*Flux density in repulsion mode drops to ~0 Gs in the exact middle between the magnets (due to field cancellation).
Attention: Calculations show friction force of dual same neodymium magnets (friction coefficient ~0.15 for Ni-Ni layer).

Table 7: Protective zones (electronics) - warnings
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
Mechanical watch	20 Gs (2.0 mT)	3.0 cm
Mobile device	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 serious hazard to electronic devices and medical implants. These NdFeB products generate a flux that prevents correct functioning of digital equipment. Remember: the unseen radiation penetrates the body and glass. Exceptional care must be taken by people with hearing aids and insulin pumps. Also at risk are: automatic timepieces, car keys, membranes, and displays. Avoid contact with magnetic cards, HDD media, or precise measuring instruments.

Table 8: Collisions (kinetic energy) - collision effects
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

Neodymium magnets are very brittle – a strong collision with metal can result in shattering. Watch the impact speed – a neodymium left loose speeds with massive force. Impact energy can cause material chips or injury to fingers. Be sure to control the product during installation so it doesn't slam with momentum against the steel surface. A contact at a velocity of dozens of km/h means shattering of the neodymium. Wear eye protection 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. Note the thickness of the protective layer.

Table 10: Electrical data (Flux)
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 passing through the pole surface. Essential parameter for generator designers and motors. The P_c coefficient defines 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%

Rust risk: This magnet has a standard nickel coating. After use in water, it must be dried and maintained immediately, otherwise it will rust!

The magnetic field penetrates through water without any losses. 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. Steel saturation

*Thin steel (e.g. computer case) significantly reduces the holding force.

3. Temperature resistance

*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

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: 010086-2026

Measurement Calculator

Magnet pull force

Force (N)

Force in lbs

Magnetic Field

Induction (Gs)

Tesla (T)

Simply complete any input, and the calculator compute everything else automatically.

RM R7 SUPER - 13000 Gs / N52 - magnetic distributor

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0.726 ZŁ brutto / pcs

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UMH 25x8x45 [M5] / N38 - magnetic holder with hook

14.49 ZŁ brutto / pcs

The presented product is an extremely powerful cylindrical magnet, manufactured from durable NdFeB material, which, with dimensions of Ø5x25 mm, guarantees optimal power. This specific item is characterized by a tolerance of ±0.1mm and professional build quality, making it an ideal 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 European logistics center, ensuring quick 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 finds application in modeling, advanced robotics, and broadly understood industry, serving as a fastening or actuating element. Thanks to the pull force of 4.41 N with a weight of only 3.68 g, this rod is indispensable in miniature devices and wherever every gram matters.

Since our magnets have a tolerance of ±0.1mm, the recommended way is to glue them into holes with a slightly larger diameter (e.g., 5.1 mm) using epoxy glues. To ensure long-term durability in industry, 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 professional neodymium magnets, offering a great economic balance and operational stability. If you need even stronger 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.

The presented product is a neodymium magnet with precisely defined parameters: diameter 5 mm and height 25 mm. The value of 4.41 N means that the magnet is capable of holding a weight many times exceeding its own mass of 3.68 g. The product has a [NiCuNi] coating, which secures it against oxidation, giving it an aesthetic, silvery shine.

Standardly, the magnetic axis runs through the center of the cylinder, causing the greatest attraction force to occur on the bases with a diameter of 5 mm. 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 Nd₂Fe₁₄B magnets.

Pros

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

Their magnetic field is durable, and after around ten years it drops only by ~1% (according to research),
Neodymium magnets are distinguished by extremely resistant to magnetic field loss caused by external interference,
The use of an shiny layer of noble metals (nickel, gold, silver) causes the element to look better,
They show high magnetic induction at the operating surface, making them more effective,
Neodymium magnets are characterized by very high magnetic induction on the magnet surface and can work (depending on the shape) even at a temperature of 230°C or more...
Thanks to modularity in shaping and the ability to customize to specific needs,
Universal use in advanced technology sectors – they find application in HDD drives, brushless drives, medical devices, also modern systems.
Thanks to their power density, small magnets offer high operating force, occupying minimum space,

Limitations

Drawbacks and weaknesses of neodymium magnets: weaknesses and usage proposals

To avoid cracks upon strong impacts, we suggest using special steel housings. Such a solution protects the magnet and simultaneously improves its durability.
Neodymium magnets decrease their force under the influence of heating. As soon as 80°C is exceeded, many of them start losing their power. Therefore, we recommend our special magnets marked [AH], which maintain stability even at temperatures up to 230°C
Magnets exposed to a humid environment can rust. Therefore during using outdoors, we advise using waterproof magnets made of rubber, plastic or other material resistant to moisture
Due to limitations in realizing nuts and complex forms in magnets, we propose using casing - magnetic holder.
Health risk to health – tiny shards of magnets pose a threat, in case of ingestion, which becomes key in the aspect of protecting the youngest. Furthermore, tiny parts of these magnets are able to be problematic in diagnostics medical in case of swallowing.
Due to expensive raw materials, their price is relatively high,

Pull force analysis

Highest magnetic holding force – what it depends on?

The lifting capacity listed is a measurement result performed under specific, ideal conditions:

with the contact of a sheet made of special test steel, guaranteeing maximum field concentration
possessing a massiveness of at least 10 mm to avoid saturation
with a surface cleaned and smooth
under conditions of no distance (metal-to-metal)
during detachment in a direction vertical to the plane
at temperature room level

Magnet lifting force in use – key factors

In practice, the real power is determined by several key aspects, presented from crucial:

Space between magnet and steel – every millimeter of separation (caused e.g. by varnish or dirt) diminishes the magnet efficiency, often by half at just 0.5 mm.
Direction of force – maximum parameter is obtained only during perpendicular pulling. The force required to slide of the magnet along the surface is typically many times lower (approx. 1/5 of the lifting capacity).
Plate thickness – too thin plate does not accept the full field, causing part of the flux to be escaped to the other side.
Steel type – low-carbon steel gives the best results. Higher carbon content reduce magnetic permeability and lifting capacity.
Surface finish – full contact is possible only on polished steel. Rough texture reduce the real contact area, weakening the magnet.
Temperature – temperature increase causes a temporary drop of induction. Check the thermal limit for a given model.

Holding force was tested on a smooth steel plate of 20 mm thickness, when a perpendicular force was applied, however under attempts to slide the magnet the load capacity is reduced by as much as 75%. Moreover, even a slight gap between the magnet and the plate decreases the lifting capacity.

Warnings

Do not underestimate power

Before use, check safety instructions. Uncontrolled attraction can destroy the magnet or injure your hand. Think ahead.

Danger to the youngest

Adult use only. Tiny parts pose a choking risk, leading to severe trauma. Store out of reach of kids and pets.

ICD Warning

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

Do not drill into magnets

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

Bodily injuries

Big blocks can break fingers instantly. Do not put your hand between two attracting surfaces.

Keep away from computers

Avoid bringing magnets near a wallet, computer, or screen. The magnetism can permanently damage these devices and erase data from cards.

GPS Danger

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

Permanent damage

Standard neodymium magnets (N-type) lose power when the temperature surpasses 80°C. This process is irreversible.

Nickel coating and allergies

Allergy Notice: The nickel-copper-nickel coating consists of nickel. If redness occurs, immediately stop handling magnets and wear gloves.

Risk of cracking

Despite the nickel coating, neodymium is delicate and not impact-resistant. Do not hit, as the magnet may shatter into hazardous fragments.

Attention! Details about hazards in the article: Magnet Safety Guide.

MW 5x25 / N38 - cylindrical magnet

Physical properties - MW 5x25 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Engineering modeling of the product - report

Table 1: Static pull force (force vs gap) - power drop MW 5x25 / N38

Table 2: Vertical capacity (wall) MW 5x25 / N38

Table 3: Wall mounting (sliding) - vertical pull MW 5x25 / N38

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

Table 5: Working in heat (material behavior) - thermal limit MW 5x25 / N38

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

Table 7: Protective zones (electronics) - warnings MW 5x25 / N38

Table 8: Collisions (kinetic energy) - collision effects MW 5x25 / N38

Table 9: Surface protection spec MW 5x25 / N38

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

Table 11: Submerged application MW 5x25 / N38

1. Vertical hold

2. Steel saturation

3. Temperature resistance

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

Chemical composition

Ecology and recycling (GPSR)

Magnet pull force

Magnetic Field

See also offers

RM R7 SUPER - 13000 Gs / N52 - magnetic distributor

MW 10x3 / N38 - cylindrical magnet

MPL 30x15x2 / N38 - lamellar magnet

UMH 25x8x45 [M5] / N38 - magnetic holder with hook

Strengths and weaknesses of Nd2Fe14B magnets.

Pros

Limitations

Pull force analysis

Highest magnetic holding force – what it depends on?

Magnet lifting force in use – key factors

Warnings

Do not underestimate power

Danger to the youngest

ICD Warning

Do not drill into magnets

Bodily injuries

Keep away from computers

GPS Danger

Permanent damage

Nickel coating and allergies

Risk of cracking

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (force vs gap) - power drop
MW 5x25 / N38

Table 2: Vertical capacity (wall)
MW 5x25 / N38

Table 3: Wall mounting (sliding) - vertical pull
MW 5x25 / N38

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

Table 5: Working in heat (material behavior) - thermal limit
MW 5x25 / N38

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

Table 7: Protective zones (electronics) - warnings
MW 5x25 / N38

Table 8: Collisions (kinetic energy) - collision effects
MW 5x25 / N38

Table 9: Surface protection spec
MW 5x25 / N38

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

Table 11: Submerged application
MW 5x25 / N38

Strengths and weaknesses of Nd₂Fe₁₄B magnets.