Product available Ships tomorrow

MW 8x20 / 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 010475

GTIN/EAN: 5906301811138

5.00

Diameter Ø

8 mm [±0,1 mm]

Height

20 mm [±0,1 mm]

Weight

7.54 g

Magnetization Direction

→ diametrical

Load capacity

1.30 kg / 12.75 N

Magnetic Induction

607.01 mT / 6070 Gs

Coating

[NiCuNi] Nickel

see technical specifications »

4.60 ZŁ with VAT / pcs + price for transport

3.74 ZŁ net + 23% VAT / pcs

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Product card - MW 8x20 / N38 - cylindrical magnet

Specification / characteristics - MW 8x20 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010475
GTIN/EAN	5906301811138
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	8 mm [±0,1 mm]
Height	20 mm [±0,1 mm]
Weight	7.54 g
Magnetization Direction	→ diametrical
Load capacity ~ ?	1.30 kg / 12.75 N
Magnetic Induction ~ ?	607.01 mT / 6070 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 8x20 / 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 product - technical parameters

The following data constitute the outcome of a engineering analysis. Values were calculated on models for the material Nd₂Fe₁₄B. Actual parameters may differ from theoretical values. Please consider these calculations as a preliminary roadmap during assembly planning.

Table 1: Static force (pull vs gap) - power drop
MW 8x20 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	6064 Gs 606.4 mT	1.30 kg / 2.87 LBS 1300.0 g / 12.8 N	low risk
1 mm	4587 Gs 458.7 mT	0.74 kg / 1.64 LBS 743.7 g / 7.3 N	low risk
2 mm	3327 Gs 332.7 mT	0.39 kg / 0.86 LBS 391.4 g / 3.8 N	low risk
3 mm	2388 Gs 238.8 mT	0.20 kg / 0.44 LBS 201.6 g / 2.0 N	low risk
5 mm	1281 Gs 128.1 mT	0.06 kg / 0.13 LBS 58.0 g / 0.6 N	low risk
10 mm	389 Gs 38.9 mT	0.01 kg / 0.01 LBS 5.4 g / 0.1 N	low risk
15 mm	169 Gs 16.9 mT	0.00 kg / 0.00 LBS 1.0 g / 0.0 N	low risk
20 mm	90 Gs 9.0 mT	0.00 kg / 0.00 LBS 0.3 g / 0.0 N	low risk
30 mm	35 Gs 3.5 mT	0.00 kg / 0.00 LBS 0.0 g / 0.0 N	low risk
50 mm	10 Gs 1.0 mT	0.00 kg / 0.00 LBS 0.0 g / 0.0 N	low risk

Pulling power drops significantly per each millimeter of spacing. Keep in mind that even a very thin break (e.g., dirt, paint, veneer) noticeably reduces the pull force. Magnetic products operate most effectively during direct contact; distance drastically cuts the power. Notice how rapidly the pull force fall, when the product does not touch tightly to the metal substrate. When designing the arrangement, discard unnecessary gaps.

Table 2: Sliding force (vertical surface)
MW 8x20 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	0.26 kg / 0.57 LBS 260.0 g / 2.6 N
1 mm	Stal (~0.2)	0.15 kg / 0.33 LBS 148.0 g / 1.5 N
2 mm	Stal (~0.2)	0.08 kg / 0.17 LBS 78.0 g / 0.8 N
3 mm	Stal (~0.2)	0.04 kg / 0.09 LBS 40.0 g / 0.4 N
5 mm	Stal (~0.2)	0.01 kg / 0.03 LBS 12.0 g / 0.1 N
10 mm	Stal (~0.2)	0.00 kg / 0.00 LBS 2.0 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 table below indicates the estimated shear load necessary to start the sliding of the magnet vertically against a upright steel wall (assuming typical friction coefficient). This value is relative to the air gap between the magnet and the surface.

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces
MW 8x20 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	0.39 kg / 0.86 LBS 390.0 g / 3.8 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.26 kg / 0.57 LBS 260.0 g / 2.6 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.13 kg / 0.29 LBS 130.0 g / 1.3 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	0.65 kg / 1.43 LBS 650.0 g / 6.4 N

When mounting a element on a vertical plane (e.g., a board), it will only hold barely approx. 20%-30% of nominal attraction strength. Gravity as well as a weak degree of grip cause that holders slide down easier than they pop off the substrate. Want to create a hanger? Note that the shear force is much weaker than the maximum static pull force. On a painted metal, the holder will give way down under a much lighter load. Using a rubber layer can effectively improve the result.

Table 4: Material efficiency (substrate influence) - power losses
MW 8x20 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.13 kg / 0.29 LBS 130.0 g / 1.3 N
1 mm	25%	0.33 kg / 0.72 LBS 325.0 g / 3.2 N
2 mm	50%	0.65 kg / 1.43 LBS 650.0 g / 6.4 N
3 mm	75%	0.98 kg / 2.15 LBS 975.0 g / 9.6 N
5 mm	100%	1.30 kg / 2.87 LBS 1300.0 g / 12.8 N
10 mm	100%	1.30 kg / 2.87 LBS 1300.0 g / 12.8 N
11 mm	100%	1.30 kg / 2.87 LBS 1300.0 g / 12.8 N
12 mm	100%	1.30 kg / 2.87 LBS 1300.0 g / 12.8 N

A thin metal plate is incapable of absorb the entire magnetic field, which squanders power of the magnet. If you mount a strong magnet to a thin surface, the magnetism will penetrate right through and the attraction force will be weaker. To utilize 100% of this neodymium's power, you need a suitably thick element of metal. The material oversaturation means that on delicate walls (e.g., car bodies), the product works worse. We advise picking the steel thickness from these parameters.

Table 5: Working in heat (material behavior) - thermal limit
MW 8x20 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	1.30 kg / 2.87 LBS 1300.0 g / 12.8 N	OK
40 °C	-2.2%	1.27 kg / 2.80 LBS 1271.4 g / 12.5 N	OK
60 °C	-4.4%	1.24 kg / 2.74 LBS 1242.8 g / 12.2 N	OK
80 °C	-6.6%	1.21 kg / 2.68 LBS 1214.2 g / 11.9 N
100 °C	-28.8%	0.93 kg / 2.04 LBS 925.6 g / 9.1 N

Ordinary NdFeB products change their properties strength after exceeding the maximum temperature. Watch out for overheating – excessive heat can irreversibly destroy this magnet. With increasing heat, the magnet's power briefly lowers. Avoid using this product in hot environments higher than its working range. Too high temperature will lead to irreversible degradation of magnetism.

*Engineering note: Heat tolerance is determined by both grade, as well as the dimension ratios. Flat magnets (low Pc) are more susceptible to demagnetization at lower temperatures than long magnets. Red status in the table signals a risk of irreversible loss for this specific geometry.

Table 6: Two magnets (attraction) - field collision
MW 8x20 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Lateral Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	11.40 kg / 25.12 LBS 6 154 Gs	1.71 kg / 3.77 LBS 1709 g / 16.8 N	N/A
1 mm	8.76 kg / 19.31 LBS 10 632 Gs	1.31 kg / 2.90 LBS 1314 g / 12.9 N	7.88 kg / 17.38 LBS ~0 Gs
2 mm	6.52 kg / 14.37 LBS 9 174 Gs	0.98 kg / 2.16 LBS 978 g / 9.6 N	5.87 kg / 12.94 LBS ~0 Gs
3 mm	4.76 kg / 10.49 LBS 7 837 Gs	0.71 kg / 1.57 LBS 714 g / 7.0 N	4.28 kg / 9.44 LBS ~0 Gs
5 mm	2.46 kg / 5.43 LBS 5 637 Gs	0.37 kg / 0.81 LBS 369 g / 3.6 N	2.22 kg / 4.88 LBS ~0 Gs
10 mm	0.51 kg / 1.12 LBS 2 561 Gs	0.08 kg / 0.17 LBS 76 g / 0.7 N	0.46 kg / 1.01 LBS ~0 Gs
20 mm	0.05 kg / 0.10 LBS 778 Gs	0.01 kg / 0.02 LBS 7 g / 0.1 N	0.04 kg / 0.09 LBS ~0 Gs
50 mm	0.00 kg / 0.00 LBS 107 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 69 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 48 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 34 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 25 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 19 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. The setup of magnet-to-magnet creates a more powerful interaction and a wider radius of operation. Planning to create a strong closure? Utilize two neodymiums instead of a neodymium and a striker plate. Remember that when connecting a pair of magnets, the pinch force is extreme. The repulsion force is slightly lower than the connection force, but still impressive.
*The magnetic induction for N-N configuration is approximately ~0 Gs in the exact middle of the gap (due to field cancellation).
Important: Figures demonstrate sliding force of a pair of same neodymium magnets (friction coefficient ~0.15 for Ni-Ni coating).

Table 7: Safety (HSE) (implants) - precautionary measures
MW 8x20 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	6.5 cm
Hearing aid	10 Gs (1.0 mT)	5.0 cm
Timepiece	20 Gs (2.0 mT)	4.0 cm
Mobile device	40 Gs (4.0 mT)	3.0 cm
Remote	50 Gs (5.0 mT)	3.0 cm
Payment card	400 Gs (40.0 mT)	1.0 cm
HDD hard drive	600 Gs (60.0 mT)	1.0 cm

Extremely neodym field poses a large risk to electronics as well as medical implants. These magnets produce a flux that disrupts operation of sensitive medical devices. Notice: the invisible magnetic field penetrates the body and glass. Exceptional care must be exercised by people with hearing aids and drug dispensers. The risk also applies to: mechanical watches, car keys, speakers, and screens. Do not bring the product near payment cards, HDD media, or sensitive navigation tools.

Table 8: Dynamics (kinetic energy) - warning
MW 8x20 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	13.28 km/h (3.69 m/s)	0.05 J
30 mm	22.94 km/h (6.37 m/s)	0.15 J
50 mm	29.61 km/h (8.23 m/s)	0.26 J
100 mm	41.88 km/h (11.63 m/s)	0.51 J

NdFeB products are delicate – a strong collision with metal risks their cracking. Watch the impact speed – a neodymium left loose becomes dangerous. Impact energy can cause material chips or painful pinches to fingers. Hold the magnet firmly during bringing near metal so it doesn't hit violently against the steel surface. A contact at a velocity of dozens of km/h almost guarantees destruction of the neodymium. Wear eye protection when working with large magnets.

Table 9: Coating parameters (durability)
MW 8x20 / 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 8x20 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	3 457 Mx	34.6 µWb
P_c Coefficient	1.31	High (Stable)

Total magnetic flux emitted by the magnet pole. Key data when building generators and motors. The P_c coefficient determines the magnet's operating point.

Table 11: Submerged application
MW 8x20 / N38

Environment	Effective steel pull	Effect
Air (land)	1.30 kg	Standard
Water (riverbed)	1.49 kg (+0.19 kg buoyancy gain)	+14.5%

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

Water displaces steel, making heavy objects slightly lighter. Buoyancy helps in lifting finds.

1. Shear force

*Note: On a vertical wall, the magnet holds only approx. 20-30% of its perpendicular strength.

2. Steel thickness impact

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

3. Power loss vs temp

*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) = 1.31

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 specification and ecology

Material specification

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: 010475-2026

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This product is an exceptionally strong cylindrical magnet, made from durable NdFeB material, which, at dimensions of Ø8x20 mm, guarantees the highest energy density. This specific item features an accuracy 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. 1.30 kg), this product is in stock from our warehouse in Poland, ensuring lightning-fast 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 ideal for building electric motors, advanced Hall effect sensors, and efficient magnetic separators, where field concentration on a small surface counts. Thanks to the pull force of 12.75 N with a weight of only 7.54 g, this cylindrical magnet is indispensable in miniature devices and wherever every gram matters.

Due to the delicate structure of the ceramic sinter, we absolutely advise against force-fitting (so-called press-fit), as this risks immediate cracking of this precision component. To ensure long-term durability in industry, anaerobic resins are used, which do not react with the nickel coating and fill the gap, guaranteeing durability of the connection.

Magnets N38 are suitable for the majority of applications in automation and machine building, where extreme miniaturization with maximum force is not required. If you need the strongest magnets in the same volume (Ø8x20), 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 8 mm and height 20 mm. The key parameter here is the holding force amounting to approximately 1.30 kg (force ~12.75 N), which, with such compact dimensions, proves the high grade of the NdFeB material. 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 20 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.

Advantages

In addition to their pulling strength, neodymium magnets provide the following advantages:

They do not lose power, even after approximately 10 years – the drop in power is only ~1% (theoretically),
They possess excellent resistance to weakening of magnetic properties due to external magnetic sources,
In other words, due to the glossy finish of silver, the element becomes visually attractive,
Magnets possess exceptionally strong magnetic induction on the surface,
Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and can work (depending on the form) even at a temperature of 230°C or more...
Possibility of precise machining and optimizing to defined requirements,
Significant place in innovative solutions – they find application in HDD drives, drive modules, precision medical tools, and multitasking production systems.
Compactness – despite small sizes they provide effective action, making them ideal for precision applications

Cons

Disadvantages of neodymium magnets:

Susceptibility to cracking is one of their disadvantages. Upon intense impact they can fracture. We recommend keeping them in a special holder, which not only protects them against impacts but also increases their durability
Neodymium magnets decrease their power 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 durability even at temperatures up to 230°C
They rust in a humid environment - during use outdoors we advise using waterproof magnets e.g. in rubber, plastic
Due to limitations in producing threads and complicated shapes in magnets, we propose using casing - magnetic mount.
Possible danger resulting from small fragments of magnets can be dangerous, if swallowed, which gains importance in the aspect of protecting the youngest. It is also worth noting that tiny parts 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

Holding force characteristics

Maximum magnetic pulling force – what contributes to it?

Breakaway force is the result of a measurement for optimal configuration, including:

using a sheet made of low-carbon steel, serving as a circuit closing element
possessing a thickness of minimum 10 mm to ensure full flux closure
with a plane cleaned and smooth
with direct contact (without impurities)
for force acting at a right angle (pull-off, not shear)
in neutral thermal conditions

Determinants of practical lifting force of a magnet

Real force impacted by specific conditions, mainly (from priority):

Clearance – existence of any layer (paint, tape, air) interrupts the magnetic circuit, which reduces capacity rapidly (even by 50% at 0.5 mm).
Direction of force – maximum parameter is reached only during perpendicular pulling. The resistance to sliding of the magnet along the surface is standardly many times lower (approx. 1/5 of the lifting capacity).
Wall thickness – the thinner the sheet, the weaker the hold. Magnetic flux penetrates through instead of converting into lifting capacity.
Chemical composition of the base – low-carbon steel gives the best results. Alloy admixtures decrease magnetic permeability and holding force.
Surface condition – smooth surfaces guarantee perfect abutment, which increases force. Rough surfaces weaken the grip.
Temperature – heating the magnet causes a temporary drop of force. Check the maximum operating temperature for a given model.

Lifting capacity testing was performed on a smooth plate of suitable thickness, under perpendicular forces, whereas under attempts to slide the magnet the lifting capacity is smaller. Moreover, even a slight gap between the magnet and the plate reduces the load capacity.

Safe handling of neodymium magnets

Phone sensors

Navigation devices and smartphones are extremely sensitive to magnetic fields. Direct contact with a powerful NdFeB magnet can permanently damage the internal compass in your phone.

Nickel allergy

Medical facts indicate that nickel (the usual finish) is a potent allergen. For allergy sufferers, refrain from direct skin contact or choose encased magnets.

Product not for children

Only for adults. Small elements pose a choking risk, causing serious injuries. Keep out of reach of kids and pets.

Physical harm

Protect your hands. Two large magnets will join immediately with a force of several hundred kilograms, destroying everything in their path. Exercise extreme caution!

Thermal limits

Watch the temperature. Heating the magnet above 80 degrees Celsius will permanently weaken its magnetic structure and pulling force.

Handling rules

Before starting, read the rules. Uncontrolled attraction can destroy the magnet or hurt your hand. Be predictive.

Combustion hazard

Powder produced during grinding of magnets is self-igniting. Do not drill into magnets without proper cooling and knowledge.

Data carriers

Avoid bringing magnets near a wallet, laptop, or TV. The magnetic field can irreversibly ruin these devices and erase data from cards.

Shattering risk

Neodymium magnets are ceramic materials, which means they are prone to chipping. Collision of two magnets leads to them cracking into small pieces.

Medical implants

Individuals with a pacemaker must maintain an large gap from magnets. The magnetism can interfere with the functioning of the implant.

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

MW 8x20 / N38 - cylindrical magnet

Product card - MW 8x20 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical analysis of the product - technical parameters

Table 1: Static force (pull vs gap) - power drop MW 8x20 / N38

Table 2: Sliding force (vertical surface) MW 8x20 / N38

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces MW 8x20 / N38

Table 4: Material efficiency (substrate influence) - power losses MW 8x20 / N38

Table 5: Working in heat (material behavior) - thermal limit MW 8x20 / N38

Table 6: Two magnets (attraction) - field collision MW 8x20 / N38

Table 7: Safety (HSE) (implants) - precautionary measures MW 8x20 / N38

Table 8: Dynamics (kinetic energy) - warning MW 8x20 / N38

Table 9: Coating parameters (durability) MW 8x20 / N38

Table 10: Construction data (Pc) MW 8x20 / N38

Table 11: Submerged application MW 8x20 / N38

1. Shear force

2. Steel thickness impact

3. Power loss vs temp

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

Material specification

Environmental data

Force (pull)

Magnetic Induction

Other deals

MW 25x12 / N38 - cylindrical magnet

HH 16x5.3 [M3] / N38 - through hole magnetic holder

BM 320x180x70 [4x M8] - magnetic beam

SM 32x125 [2xM8] / N52 - magnetic separator

Advantages as well as disadvantages of Nd2Fe14B magnets.

Advantages

Cons

Holding force characteristics

Maximum magnetic pulling force – what contributes to it?

Determinants of practical lifting force of a magnet

Safe handling of neodymium magnets

Phone sensors

Nickel allergy

Product not for children

Physical harm

Thermal limits

Handling rules

Combustion hazard

Data carriers

Shattering risk

Medical implants

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (pull vs gap) - power drop
MW 8x20 / N38

Table 2: Sliding force (vertical surface)
MW 8x20 / N38

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces
MW 8x20 / N38

Table 4: Material efficiency (substrate influence) - power losses
MW 8x20 / N38

Table 5: Working in heat (material behavior) - thermal limit
MW 8x20 / N38

Table 6: Two magnets (attraction) - field collision
MW 8x20 / N38

Table 7: Safety (HSE) (implants) - precautionary measures
MW 8x20 / N38

Table 8: Dynamics (kinetic energy) - warning
MW 8x20 / N38

Table 9: Coating parameters (durability)
MW 8x20 / N38

Table 10: Construction data (P_c)
MW 8x20 / N38

Table 11: Submerged application
MW 8x20 / N38

Advantages as well as disadvantages of Nd₂Fe₁₄B magnets.