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MW 25x5 / 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 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

see parameters »

8.39 ZŁ with VAT / pcs + price for transport

6.82 ZŁ net + 23% VAT / pcs

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Technical of the product - 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 - technical parameters

Presented data constitute the result of a physical calculation. Results rely on algorithms for the material Nd₂Fe₁₄B. Real-world performance might slightly differ. Use these calculations as a supplementary guide for designers.

Table 1: Static force (pull vs gap) - power drop
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	medium risk
1 mm	2189 Gs 218.9 mT	7.21 kg / 15.91 lbs 7214.9 g / 70.8 N	medium risk
2 mm	2050 Gs 205.0 mT	6.33 kg / 13.95 lbs 6329.3 g / 62.1 N	medium risk
3 mm	1895 Gs 189.5 mT	5.41 kg / 11.93 lbs 5410.7 g / 53.1 N	medium risk
5 mm	1570 Gs 157.0 mT	3.72 kg / 8.19 lbs 3715.4 g / 36.4 N	medium risk
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

Magnetic force drops significantly with every mm of gap. Keep in mind that every additional insulation layer (e.g., dirt, paint, veneer) noticeably diminishes the holding power. Magnetic products work optimally in perfect adhesion; air break nullifies the power. Observe how rapidly the load capacity fall, when the magnet does not adhere flatly to the metal substrate. When calculating the mounting, eliminate unnecessary gaps.

Table 2: Shear load (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 defines the approximate shear load sufficient to initiate the downward movement of the magnet downwards along a upright steel plate (considering standard friction coefficient). This parameter is relative to the gap size between the magnet and the surface.

Table 3: Vertical assembly (shearing) - 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 mounting a holder on a upright wall (e.g., a fridge), it you can count on just about 1/5 of nominal attraction strength. Gravitational force as well as a low friction coefficient cause that products move down faster than they pop off the substrate. Planning a vertical fastening? Consider that the sliding force is noticeably lower than the maximum static pull force. On a slippery surface, the magnet will slip down under a much lighter load. Application of an anti-slip coating can drastically increase the grip.

Table 4: Steel thickness (saturation) - 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 conduct the full magnetic flux, which squanders power of the holder. Should you install a neodymium to a weak sheet, the magnetism will pass right through and the holding will be smaller. To squeeze full efficiency of this magnet's power, you need a suitably thick backing of steel. The material oversaturation means that on delicate walls (e.g., appliance housings), the holder shows lower pull force. We recommend selecting the steel cross-section according to the table below.

Table 5: Working in heat (stability) - thermal limit
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

Ordinary NdFeB products change their properties strength after exceeding the maximum temperature. Protect against heat – heat can irreversibly demagnetize this magnet. With increasing heat, the magnet's capacity momentarily lowers. Refrain from using this magnet near heat sources higher than its safe range. Ignoring the limit will lead to destruction of magnetism.

*Engineering note: Temperature resistance depends not only on the material grade, as well as the dimension ratios. Thin magnets (low Pc) may lose charge permanently sooner than taller cylinders. Red status in the table signals a risk of irreversible loss for this specific geometry.

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

Gap (mm)	Attraction (kg/lbs) (N-S)	Sliding 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 magnets interact from a much further distance than a magnet and sheet combination. The connection of magnet-to-magnet generates a stronger field and a larger range of action. Planning to create a solid fastener? Utilize two neodymiums instead of one magnet and a steel. Remember that when bringing together two magnets, the pinch force is huge. The repulsion force is slightly lower than the connection force, but still large.
*The magnetic induction in repulsion mode is approximately ~0 Gs in the exact middle between the magnets (resulting from vector opposition).
* Estimates demonstrate shear force of two same magnets (friction coefficient ~0.15 for Ni-Ni layer).

Table 7: Safety (HSE) (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
Phone / Smartphone	40 Gs (4.0 mT)	5.0 cm
Car key	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

A strong magnetic field is a large risk to electronics as well as medical implants. These magnets generate a flux that destroys function of sensitive medical devices. Be aware: the unseen radiation passes through tissues and glass. Special caution must be exercised by people with cochlear implants and insulin pumps. Also at risk are: automatic timepieces, car keys, speakers, and screens. Do not place the magnet near cards, hard drives, or sensitive navigation tools.

Table 8: Dynamics (cracking risk) - warning
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

Magnetic elements are very brittle – a collision with steel risks their cracking. Control the attraction moment – a magnet released freely becomes dangerous. Striking energy can trigger coating fragments or dangerous crushing to fingers. Be sure to control the product during mounting so it doesn't hit with great force against the metal. A collision at high speed means shattering of the magnet. Wear eye protection when playing with powerful specimens.

Table 9: Surface protection spec
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 following table defines the conditions under which this product can be safely used. Improper coating selection is the most common cause of magnet failure over time.

Table 10: Construction 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 in coil applications and motors. The P_c coefficient determines the magnet's operating point.

Table 11: Hydrostatics and buoyancy
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%

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. Buoyancy helps in lifting finds.

1. Shear force

*Warning: On a vertical surface, the magnet holds merely ~20% of its perpendicular strength.

2. Steel thickness impact

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

3. Heat tolerance

*For N38 grade, 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%

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: 010049-2026

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MW 10x15 / N38 - cylindrical magnet

6.15 ZŁ brutto / pcs

This product is an extremely powerful cylindrical magnet, produced from durable NdFeB material, which, with dimensions of Ø25x5 mm, guarantees the highest energy density. This specific item boasts an accuracy of ±0.1mm and industrial build quality, making it a perfect solution for professional engineers and designers. As a magnetic rod with significant force (approx. 7.98 kg), this product is in stock from our warehouse in Poland, ensuring rapid order fulfillment. Additionally, its Ni-Cu-Ni coating effectively protects it against corrosion in typical operating conditions, guaranteeing an aesthetic appearance and durability for years.

This model is created for building generators, advanced sensors, and efficient magnetic separators, where field concentration on a small surface counts. Thanks to the high power of 78.25 N with a weight of only 18.41 g, this cylindrical magnet is indispensable in miniature devices 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 immediate cracking of this precision component. To ensure stability in industry, anaerobic resins are used, which do not react with the nickel coating and fill the gap, guaranteeing high repeatability of the connection.

Magnets NdFeB grade 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 the strongest magnets in the same volume (Ø25x5), 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 25 mm and height 5 mm. The key parameter here is the lifting capacity amounting to approximately 7.98 kg (force ~78.25 N), which, with such defined dimensions, proves the high power of the NdFeB material. The product has a [NiCuNi] coating, which protects the surface against external factors, 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 25 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 through the diameter if your project requires it.

Pros and cons of Nd₂Fe₁₄B magnets.

Benefits

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

Their strength remains stable, and after around ten years it drops only by ~1% (theoretically),
They feature excellent resistance to weakening of magnetic properties when exposed to external magnetic sources,
In other words, due to the aesthetic finish of silver, the element gains visual value,
Magnets possess huge magnetic induction on the active area,
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...
In view of the ability of flexible shaping and adaptation to custom requirements, NdFeB magnets can be produced in a broad palette of forms and dimensions, which increases their versatility,
Fundamental importance in future technologies – they serve a role in mass storage devices, electric motors, precision medical tools, also complex engineering applications.
Relatively small size with high pulling force – neodymium magnets offer high power in tiny dimensions, which enables their usage in small systems

Limitations

Disadvantages of NdFeB magnets:

At strong impacts they can break, therefore we recommend placing them in strong housings. A metal housing provides additional protection against damage and increases the magnet's durability.
When exposed to high temperature, neodymium magnets suffer a drop in power. Often, when the temperature exceeds 80°C, their power 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
They rust in a humid environment - during use outdoors we advise using waterproof magnets e.g. in rubber, plastic
Limited possibility of making nuts in the magnet and complex shapes - recommended is casing - mounting mechanism.
Health risk resulting from small fragments of magnets are risky, in case of ingestion, which becomes key in the context of child health protection. It is also worth noting that tiny parts of these devices are able to disrupt the diagnostic process medical after entering the body.
High unit price – neodymium magnets cost more than other types of magnets (e.g. ferrite), which can limit application in large quantities

Pull force analysis

Optimal lifting capacity of a neodymium magnet – what contributes to it?

The lifting capacity listed is a result of laboratory testing performed under specific, ideal conditions:

on a base made of mild steel, effectively closing the magnetic flux
whose thickness is min. 10 mm
with an ideally smooth touching surface
without the slightest air gap between the magnet and steel
during pulling in a direction vertical to the mounting surface
at ambient temperature room level

Determinants of practical lifting force of a magnet

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

Clearance – existence of any layer (paint, tape, gap) interrupts the magnetic circuit, which lowers capacity steeply (even by 50% at 0.5 mm).
Force direction – declared lifting capacity refers to detachment vertically. When slipping, the magnet exhibits significantly lower power (often approx. 20-30% of maximum force).
Metal thickness – the thinner the sheet, the weaker the hold. Magnetic flux passes through the material instead of converting into lifting capacity.
Material type – ideal substrate is high-permeability steel. Stainless steels may have worse magnetic properties.
Plate texture – ground elements ensure maximum contact, which increases field saturation. Rough surfaces weaken the grip.
Thermal environment – heating the magnet results in weakening of force. It is worth remembering the maximum operating temperature for a given model.

Holding force was checked on the plate surface of 20 mm thickness, when the force acted perpendicularly, however under parallel forces the holding force is lower. Additionally, even a small distance between the magnet and the plate decreases the load capacity.

Precautions when working with neodymium magnets

Magnetic media

Powerful magnetic fields can corrupt files on credit cards, hard drives, and storage devices. Maintain a gap of at least 10 cm.

Precision electronics

Navigation devices and smartphones are highly susceptible to magnetism. Direct contact with a powerful NdFeB magnet can decalibrate the sensors in your phone.

Permanent damage

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

Allergy Warning

It is widely known that nickel (the usual finish) is a common allergen. If you have an allergy, refrain from direct skin contact and opt for coated magnets.

Powerful field

Before starting, check safety instructions. Uncontrolled attraction can break the magnet or injure your hand. Be predictive.

Pinching danger

Pinching hazard: The pulling power is so immense that it can cause blood blisters, pinching, and even bone fractures. Protective gloves are recommended.

Warning for heart patients

Individuals with a pacemaker must keep an safe separation from magnets. The magnetic field can interfere with the functioning of the life-saving device.

No play value

Only for adults. Small elements pose a choking risk, leading to intestinal necrosis. Store out of reach of kids and pets.

Risk of cracking

Despite the nickel coating, the material is delicate and cannot withstand shocks. Do not hit, as the magnet may shatter into sharp, dangerous pieces.

Dust is flammable

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

Attention! Details about hazards in the article: Safety of working with magnets.

MW 25x5 / N38 - cylindrical magnet

Technical of the product - 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 - technical parameters

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

Table 2: Shear load (vertical surface) MW 25x5 / N38

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces MW 25x5 / N38

Table 4: Steel thickness (saturation) - power losses MW 25x5 / N38

Table 5: Working in heat (stability) - thermal limit MW 25x5 / N38

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

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

Table 8: Dynamics (cracking risk) - warning MW 25x5 / N38

Table 9: Surface protection spec MW 25x5 / N38

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

Table 11: Hydrostatics and buoyancy MW 25x5 / N38

1. Shear force

2. Steel thickness impact

3. Heat tolerance

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

Chemical composition

Environmental data

Pulling force

Magnetic Induction

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Pros and cons of Nd2Fe14B magnets.

Benefits

Limitations

Pull force analysis

Optimal lifting capacity of a neodymium magnet – what contributes to it?

Determinants of practical lifting force of a magnet

Precautions when working with neodymium magnets

Magnetic media

Precision electronics

Permanent damage

Allergy Warning

Powerful field

Pinching danger

Warning for heart patients

No play value

Risk of cracking

Dust is flammable

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

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

Table 2: Shear load (vertical surface)
MW 25x5 / N38

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces
MW 25x5 / N38

Table 4: Steel thickness (saturation) - power losses
MW 25x5 / N38

Table 5: Working in heat (stability) - thermal limit
MW 25x5 / N38

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

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

Table 8: Dynamics (cracking risk) - warning
MW 25x5 / N38

Table 9: Surface protection spec
MW 25x5 / N38

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

Table 11: Hydrostatics and buoyancy
MW 25x5 / N38

Pros and cons of Nd₂Fe₁₄B magnets.