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MW 4x8 / 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 010079

GTIN/EAN: 5906301810780

5.00

Diameter Ø

4 mm [±0,1 mm]

Height

8 mm [±0,1 mm]

Weight

0.75 g

Magnetization Direction

↑ axial

Load capacity

0.35 kg / 3.48 N

Magnetic Induction

599.59 mT / 5996 Gs

Coating

[NiCuNi] Nickel

check technical specifications »

0.701 ZŁ with VAT / pcs + price for transport

0.570 ZŁ net + 23% VAT / pcs

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Technical - MW 4x8 / N38 - cylindrical magnet

Specification / characteristics - MW 4x8 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010079
GTIN/EAN	5906301810780
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	4 mm [±0,1 mm]
Height	8 mm [±0,1 mm]
Weight	0.75 g
Magnetization Direction	↑ axial
Load capacity ~ ?	0.35 kg / 3.48 N
Magnetic Induction ~ ?	599.59 mT / 5996 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 4x8 / 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 simulation of the assembly - technical parameters

The following information represent the direct effect of a physical calculation. Results were calculated on algorithms for the class Nd₂Fe₁₄B. Operational performance may deviate from the simulation results. Use these calculations as a reference point for designers.

Table 1: Static pull force (pull vs gap) - power drop
MW 4x8 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	5984 Gs 598.4 mT	0.35 kg / 0.77 lbs 350.0 g / 3.4 N	weak grip
1 mm	3280 Gs 328.0 mT	0.11 kg / 0.23 lbs 105.1 g / 1.0 N	weak grip
2 mm	1696 Gs 169.6 mT	0.03 kg / 0.06 lbs 28.1 g / 0.3 N	weak grip
3 mm	941 Gs 94.1 mT	0.01 kg / 0.02 lbs 8.7 g / 0.1 N	weak grip
5 mm	371 Gs 37.1 mT	0.00 kg / 0.00 lbs 1.3 g / 0.0 N	weak grip
10 mm	82 Gs 8.2 mT	0.00 kg / 0.00 lbs 0.1 g / 0.0 N	weak grip
15 mm	31 Gs 3.1 mT	0.00 kg / 0.00 lbs 0.0 g / 0.0 N	weak grip
20 mm	15 Gs 1.5 mT	0.00 kg / 0.00 lbs 0.0 g / 0.0 N	weak grip
30 mm	5 Gs 0.5 mT	0.00 kg / 0.00 lbs 0.0 g / 0.0 N	weak grip
50 mm	1 Gs 0.1 mT	0.00 kg / 0.00 lbs 0.0 g / 0.0 N	weak grip

Grip strength decreases significantly with every subsequent millimeter of spacing. Keep in mind that every additional insulation layer (e.g., contamination, paint, rust) noticeably weakens the grip. Magnets operate strongest in perfect adhesion; distance drastically cuts the force. See how quickly the parameters plummet, when the magnet does not adhere flatly to the metal substrate. When calculating the mounting, avoid additional spacers.

Table 2: Slippage hold (wall)
MW 4x8 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	0.07 kg / 0.15 lbs 70.0 g / 0.7 N
1 mm	Stal (~0.2)	0.02 kg / 0.05 lbs 22.0 g / 0.2 N
2 mm	Stal (~0.2)	0.01 kg / 0.01 lbs 6.0 g / 0.1 N
3 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 2.0 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 defines the approximate force necessary to initiate the slippage of the magnet downwards along a vertical steel plate (considering typical friction). This value is relative to the air gap between the magnet and the metal.

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces
MW 4x8 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	0.11 kg / 0.23 lbs 105.0 g / 1.0 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.07 kg / 0.15 lbs 70.0 g / 0.7 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.03 kg / 0.08 lbs 35.0 g / 0.3 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	0.18 kg / 0.39 lbs 175.0 g / 1.7 N

When mounting a element on a vertical plane (e.g., a board), it you can count on only about 1/5 of nominal attraction strength. Gravity and a weak degree of grip cause that holders move down faster than they detach. Want to create a wall mount? Consider that the shear force is noticeably lower than the perpendicular breakaway force. On a smooth steel, the holder will slide down under a noticeably lighter weight. Application of an anti-slip pad can drastically raise the stability.

Table 4: Steel thickness (substrate influence) - sheet metal selection
MW 4x8 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.03 kg / 0.08 lbs 35.0 g / 0.3 N
1 mm	25%	0.09 kg / 0.19 lbs 87.5 g / 0.9 N
2 mm	50%	0.18 kg / 0.39 lbs 175.0 g / 1.7 N
3 mm	75%	0.26 kg / 0.58 lbs 262.5 g / 2.6 N
5 mm	100%	0.35 kg / 0.77 lbs 350.0 g / 3.4 N
10 mm	100%	0.35 kg / 0.77 lbs 350.0 g / 3.4 N
11 mm	100%	0.35 kg / 0.77 lbs 350.0 g / 3.4 N
12 mm	100%	0.35 kg / 0.77 lbs 350.0 g / 3.4 N

A thin metal plate is not enough to focus the full magnetic flux, which wastes potential of the magnet. Should you attach a powerful product to a weak sheet, the flux will penetrate right through and the attraction force will be weaker. To squeeze full efficiency of this neodymium's power, you require a sufficiently solid element of metal. The saturation phenomenon means that on sheet metal structures (e.g., thin profiles), the product shows lower pull force. We suggest choosing the steel dimension according to the table below.

Table 5: Thermal stability (stability) - resistance threshold
MW 4x8 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	0.35 kg / 0.77 lbs 350.0 g / 3.4 N	OK
40 °C	-2.2%	0.34 kg / 0.75 lbs 342.3 g / 3.4 N	OK
60 °C	-4.4%	0.33 kg / 0.74 lbs 334.6 g / 3.3 N	OK
80 °C	-6.6%	0.33 kg / 0.72 lbs 326.9 g / 3.2 N
100 °C	-28.8%	0.25 kg / 0.55 lbs 249.2 g / 2.4 N

Ordinary NdFeB products change their properties power above the temperature limit. Watch out for overheating – excessive heat can irreversibly demagnetize this magnet. With increasing heat, the magnet's power briefly drops. Do not use this magnet near heat sources exceeding its working range. Ignoring the limit will cause permanent loss of magnetic properties.

*Important note: Thermal stability depends not only on the material grade, but also on the magnet's shape. Flat magnets (pancake types) are more susceptible to demagnetization at lower temperatures compared to rod magnets. The danger warning in the table indicates permanent field degradation for this particular item.

Table 6: Two magnets (repulsion) - field collision
MW 4x8 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Lateral Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	2.77 kg / 6.12 lbs 6 121 Gs	0.42 kg / 0.92 lbs 416 g / 4.1 N	N/A
1 mm	1.59 kg / 3.51 lbs 9 063 Gs	0.24 kg / 0.53 lbs 239 g / 2.3 N	1.43 kg / 3.16 lbs ~0 Gs
2 mm	0.83 kg / 1.84 lbs 6 559 Gs	0.12 kg / 0.28 lbs 125 g / 1.2 N	0.75 kg / 1.65 lbs ~0 Gs
3 mm	0.43 kg / 0.94 lbs 4 694 Gs	0.06 kg / 0.14 lbs 64 g / 0.6 N	0.38 kg / 0.85 lbs ~0 Gs
5 mm	0.12 kg / 0.27 lbs 2 498 Gs	0.02 kg / 0.04 lbs 18 g / 0.2 N	0.11 kg / 0.24 lbs ~0 Gs
10 mm	0.01 kg / 0.02 lbs 743 Gs	0.00 kg / 0.00 lbs 2 g / 0.0 N	0.01 kg / 0.02 lbs ~0 Gs
20 mm	0.00 kg / 0.00 lbs 165 Gs	0.00 kg / 0.00 lbs 0 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs
50 mm	0.00 kg / 0.00 lbs 17 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 10 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 7 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 5 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 3 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 3 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 significantly greater distance than a magnet and sheet setup. Such a system of magnet-to-magnet generates a stronger field and a further horizon of performance. Planning to create a solid fastener? Apply two magnets instead of one magnet and a striker plate. Be careful that when connecting a pair of magnets, the collision energy is huge. The levitation is slightly lower than the connection force, but still impressive.
*The magnetic induction between like poles reaches ~0 Gs in the exact middle between the magnets (due to field cancellation).
* Calculations demonstrate sliding force of two identical neodymium magnets (friction ~0.15 for Ni-Ni plating).

Table 7: Safety (HSE) (electronics) - precautionary measures
MW 4x8 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	3.5 cm
Hearing aid	10 Gs (1.0 mT)	2.5 cm
Mechanical watch	20 Gs (2.0 mT)	2.0 cm
Phone / Smartphone	40 Gs (4.0 mT)	1.5 cm
Remote	50 Gs (5.0 mT)	1.5 cm
Payment card	400 Gs (40.0 mT)	0.5 cm
HDD hard drive	600 Gs (60.0 mT)	0.5 cm

Extremely neodym field poses a real danger to electronics and medical implants. These neodymiums produce a flux that destroys function of digital equipment. Remember: the invisible magnetic field acts through matter and plastic. Increased vigilance must be taken by people with cochlear implants and drug dispensers. Also at risk are: automatic timepieces, remotes, speakers, and screens. Avoid contact with magnetic cards, hard drives, or sensitive navigation tools.

Table 8: Collisions (kinetic energy) - collision effects
MW 4x8 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	21.79 km/h (6.05 m/s)	0.01 J
30 mm	37.74 km/h (10.48 m/s)	0.04 J
50 mm	48.72 km/h (13.53 m/s)	0.07 J
100 mm	68.89 km/h (19.14 m/s)	0.14 J

Neodymium magnets are prone to chipping – a violent impact against metal can result in shattering. Pay attention to connection velocity – a neodymium left loose becomes dangerous. Striking energy can cause material chips or dangerous crushing to skin. Always hold the magnet during installation so it doesn't slam with momentum against the steel surface. A contact at a velocity of dozens of km/h ends with a crack of the magnet. Wear eye protection when playing with powerful specimens.

Table 9: Coating parameters (durability)
MW 4x8 / 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)

Neodymium magnets are highly susceptible to corrosion without proper protection. Improper coating selection is the most common cause of magnet failure over time.

Table 10: Construction data (Flux)
MW 4x8 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	836 Mx	8.4 µWb
P_c Coefficient	1.21	High (Stable)

Flux value passing through the magnet pole. Essential parameter for generator designers as well as sensors. The P_c coefficient defines the magnet's operating point.

Table 11: Physics of underwater searching
MW 4x8 / N38

Environment	Effective steel pull	Effect
Air (land)	0.35 kg	Standard
Water (riverbed)	0.40 kg (+0.05 kg buoyancy gain)	+14.5%

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

Water displaces steel, making heavy objects slightly lighter. As a result, your magnet will pull a heavier object from the bottom than if you lifted it in the air.

1. Shear force

*Warning: On a vertical wall, the magnet retains merely a fraction of its max power.

2. Steel saturation

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

3. Temperature resistance

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

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 1.21

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

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: 010079-2026

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The presented product is a very strong cylinder magnet, composed of advanced NdFeB material, which, with dimensions of Ø4x8 mm, guarantees the highest energy density. The MW 4x8 / N38 model boasts high dimensional repeatability and industrial build quality, making it an excellent solution for professional engineers and designers. As a cylindrical magnet with impressive force (approx. 0.35 kg), this product is in stock from our warehouse in Poland, ensuring rapid order fulfillment. Furthermore, its Ni-Cu-Ni coating secures it against corrosion in standard operating conditions, ensuring an aesthetic appearance and durability for years.

This model is perfect for building electric motors, advanced sensors, and efficient filters, where maximum induction on a small surface counts. Thanks to the pull force of 3.48 N with a weight of only 0.75 g, this rod is indispensable in miniature devices and wherever low weight is crucial.

Due to the brittleness of the NdFeB material, you must not use force-fitting (so-called press-fit), as this risks immediate cracking of this professional component. To ensure long-term durability in automation, specialized industrial adhesives are used, which do not react with the nickel coating and fill the gap, guaranteeing high repeatability 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 even stronger magnets in the same volume (Ø4x8), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard in continuous sale in our warehouse.

This model is characterized by dimensions Ø4x8 mm, which, at a weight of 0.75 g, makes it an element with high magnetic energy density. The value of 3.48 N means that the magnet is capable of holding a weight many times exceeding its own mass of 0.75 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 4 mm. Such an arrangement is standard when connecting magnets in stacks (e.g., in filters) or when mounting in sockets at the bottom of a hole. On request, we can also produce versions magnetized diametrically if your project requires it.

Advantages as well as disadvantages of Nd₂Fe₁₄B magnets.

Advantages

Besides their immense field intensity, neodymium magnets offer the following advantages:

Their magnetic field is durable, and after around 10 years it decreases only by ~1% (according to research),
They feature excellent resistance to weakening of magnetic properties when exposed to external fields,
A magnet with a metallic silver surface is more attractive,
They feature high magnetic induction at the operating surface, which improves attraction properties,
Through (adequate) combination of ingredients, they can achieve high thermal strength, allowing for functioning at temperatures reaching 230°C and above...
Thanks to the ability of precise shaping and customization to individualized requirements, NdFeB magnets can be created in a broad palette of shapes and sizes, which amplifies use scope,
Key role in high-tech industry – they are commonly used in HDD drives, brushless drives, medical equipment, and complex engineering applications.
Thanks to efficiency per cm³, small magnets offer high operating force, occupying minimum space,

Disadvantages

Disadvantages of neodymium magnets:

Susceptibility to cracking is one of their disadvantages. Upon strong impact they can break. We recommend keeping them in a strong case, which not only secures them against impacts but also raises their durability
NdFeB magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop of strength (a factor is the shape as well as dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are extremely resistant to heat
Magnets exposed to a humid environment can corrode. Therefore during using outdoors, we suggest using water-impermeable magnets made of rubber, plastic or other material resistant to moisture
Due to limitations in creating threads and complex forms in magnets, we recommend using a housing - magnetic holder.
Possible danger to health – tiny shards of magnets pose a threat, if swallowed, which gains importance in the context of child health protection. Furthermore, tiny parts of these devices are able to be problematic in diagnostics medical after entering the body.
Due to expensive raw materials, their price is relatively high,

Holding force characteristics

Maximum lifting capacity of the magnet – what affects it?

The force parameter is a result of laboratory testing executed under the following configuration:

using a base made of mild steel, serving as a ideal flux conductor
possessing a thickness of minimum 10 mm to avoid saturation
with an ideally smooth touching surface
with total lack of distance (no paint)
for force acting at a right angle (pull-off, not shear)
at room temperature

Magnet lifting force in use – key factors

Effective lifting capacity is influenced by specific conditions, including (from priority):

Space between surfaces – even a fraction of a millimeter of separation (caused e.g. by varnish or dirt) significantly weakens the pulling force, often by half at just 0.5 mm.
Direction of force – maximum parameter is obtained only during pulling at a 90° angle. The shear force of the magnet along the plate is standardly many times lower (approx. 1/5 of the lifting capacity).
Substrate thickness – for full efficiency, the steel must be sufficiently thick. Thin sheet limits the attraction force (the magnet "punches through" it).
Metal type – not every steel attracts identically. High carbon content worsen the attraction effect.
Surface condition – smooth surfaces ensure maximum contact, which improves field saturation. Rough surfaces weaken the grip.
Thermal factor – high temperature reduces pulling force. Too high temperature can permanently demagnetize the magnet.

Lifting capacity was assessed with the use of a smooth steel plate of optimal thickness (min. 20 mm), under perpendicular pulling force, in contrast under shearing force the holding force is lower. Additionally, even a minimal clearance between the magnet and the plate lowers the lifting capacity.

Warnings

Do not underestimate power

Use magnets with awareness. Their immense force can shock even experienced users. Stay alert and respect their force.

Safe distance

Equipment safety: Strong magnets can damage data carriers and sensitive devices (heart implants, hearing aids, mechanical watches).

Allergy Warning

Some people have a sensitization to Ni, which is the standard coating for neodymium magnets. Frequent touching might lead to skin redness. We recommend wear safety gloves.

Health Danger

Life threat: Strong magnets can deactivate pacemakers and defibrillators. Stay away if you have medical devices.

Heat sensitivity

Regular neodymium magnets (grade N) lose power when the temperature exceeds 80°C. This process is irreversible.

Pinching danger

Watch your fingers. Two large magnets will join instantly with a force of massive weight, destroying everything in their path. Exercise extreme caution!

Phone sensors

A strong magnetic field disrupts the functioning of magnetometers in phones and GPS navigation. Keep magnets close to a smartphone to avoid damaging the sensors.

Shattering risk

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

Flammability

Fire warning: Neodymium dust is highly flammable. Do not process magnets without safety gear as this may cause fire.

Product not for children

These products are not suitable for play. Swallowing a few magnets can lead to them pinching intestinal walls, which poses a direct threat to life and requires urgent medical intervention.

Security! More info about risks in the article: Safety of working with magnets.

MW 4x8 / N38 - cylindrical magnet

Technical - MW 4x8 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Engineering simulation of the assembly - technical parameters

Table 1: Static pull force (pull vs gap) - power drop MW 4x8 / N38

Table 2: Slippage hold (wall) MW 4x8 / N38

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces MW 4x8 / N38

Table 4: Steel thickness (substrate influence) - sheet metal selection MW 4x8 / N38

Table 5: Thermal stability (stability) - resistance threshold MW 4x8 / N38

Table 6: Two magnets (repulsion) - field collision MW 4x8 / N38

Table 7: Safety (HSE) (electronics) - precautionary measures MW 4x8 / N38

Table 8: Collisions (kinetic energy) - collision effects MW 4x8 / N38

Table 9: Coating parameters (durability) MW 4x8 / N38

Table 10: Construction data (Flux) MW 4x8 / N38

Table 11: Physics of underwater searching MW 4x8 / N38

1. Shear force

2. Steel saturation

3. Temperature resistance

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

Chemical composition

Environmental data

Magnet pull force

Magnetic Induction

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UMGZ 20x15x7 [M4] GZ / N38 - magnetic holder external thread

Advantages as well as disadvantages of Nd2Fe14B magnets.

Advantages

Disadvantages

Holding force characteristics

Maximum lifting capacity of the magnet – what affects it?

Magnet lifting force in use – key factors

Warnings

Do not underestimate power

Safe distance

Allergy Warning

Health Danger

Heat sensitivity

Pinching danger

Phone sensors

Shattering risk

Flammability

Product not for children

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (pull vs gap) - power drop
MW 4x8 / N38

Table 2: Slippage hold (wall)
MW 4x8 / N38

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces
MW 4x8 / N38

Table 4: Steel thickness (substrate influence) - sheet metal selection
MW 4x8 / N38

Table 5: Thermal stability (stability) - resistance threshold
MW 4x8 / N38

Table 6: Two magnets (repulsion) - field collision
MW 4x8 / N38

Table 7: Safety (HSE) (electronics) - precautionary measures
MW 4x8 / N38

Table 8: Collisions (kinetic energy) - collision effects
MW 4x8 / N38

Table 9: Coating parameters (durability)
MW 4x8 / N38

Table 10: Construction data (Flux)
MW 4x8 / N38

Table 11: Physics of underwater searching
MW 4x8 / N38

Advantages as well as disadvantages of Nd₂Fe₁₄B magnets.