Product available Ships tomorrow

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

view parameters »

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

Technical modeling of the assembly - technical parameters

These information constitute the direct effect of a mathematical analysis. Results are based on models for the material Nd₂Fe₁₄B. Operational parameters may deviate from the simulation results. Please consider these data as a supplementary guide during assembly planning.

Table 1: Static force (pull vs gap) - characteristics
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	low risk
1 mm	3280 Gs 328.0 mT	0.11 kg / 0.23 LBS 105.1 g / 1.0 N	low risk
2 mm	1696 Gs 169.6 mT	0.03 kg / 0.06 LBS 28.1 g / 0.3 N	low risk
3 mm	941 Gs 94.1 mT	0.01 kg / 0.02 LBS 8.7 g / 0.1 N	low risk
5 mm	371 Gs 37.1 mT	0.00 kg / 0.00 LBS 1.3 g / 0.0 N	low risk
10 mm	82 Gs 8.2 mT	0.00 kg / 0.00 LBS 0.1 g / 0.0 N	low risk
15 mm	31 Gs 3.1 mT	0.00 kg / 0.00 LBS 0.0 g / 0.0 N	low risk
20 mm	15 Gs 1.5 mT	0.00 kg / 0.00 LBS 0.0 g / 0.0 N	low risk
30 mm	5 Gs 0.5 mT	0.00 kg / 0.00 LBS 0.0 g / 0.0 N	low risk
50 mm	1 Gs 0.1 mT	0.00 kg / 0.00 LBS 0.0 g / 0.0 N	low risk

Magnetic force decreases sharply per each millimeter of distance. Keep in mind that even a very thin break (e.g., dirt, paint, dust) noticeably reduces the pull force. Magnets operate strongest during direct contact; distance drastically cuts the power. See how flashily the pull force fall, when the product does not touch tightly to the metal substrate. When designing the arrangement, avoid additional spacers.

Table 2: Vertical 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 calculates the theoretical holding capacity sufficient to start the downward movement of the magnet vertically along a upright steel wall (considering standard friction coefficient). The holding force depends on the air gap between the magnet and the surface.

Table 3: Wall mounting (sliding) - vertical pull
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 holder on a upright wall (e.g., a fridge), it will only hold only approx. 20%-30% of its nominal power. Gravity and a weak degree of grip mean that products move down easier than they pop off the substrate. Planning a vertical fastening? Consider that the shear force is noticeably lower than the perpendicular breakaway force. On a painted metal, the magnet will give way down under a significantly smaller cargo. Utilizing a rubberized pad can effectively increase the grip.

Table 4: Material efficiency (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 too thin steel is incapable of absorb the entire magnetic field, which wastes potential of the magnet. If you attach a powerful product to a weak sheet, the field will pass right through and the pull force will drop sharply. To utilize full efficiency of this neodymium's potential, you require a sufficiently solid backing of steel. The saturation phenomenon causes that on sheet metal structures (e.g., car bodies), the magnet shows lower pull force. We advise picking the steel dimension according to the table below.

Table 5: Thermal resistance (material behavior) - power drop
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 irreversibly lose power past the thermal threshold. Protect against heat – heat can permanently destroy this magnet. With increasing heat, the neodymium's capacity momentarily drops. Refrain from using this magnet close to heaters exceeding its safe range. Ignoring the limit will lead to destruction of magnetic properties.

*Engineering note: Temperature resistance is determined by both grade, but also on the magnet's shape. Flat magnets (low Pc) risk losing magnetic properties under lower heat stress than long magnets. Red status in the table points to a risk of irreversible loss for this specific geometry.

Table 6: Magnet-Magnet interaction (attraction) - forces in the system
MW 4x8 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Sliding 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 magnetic products interact from a much further distance than a neodymium and metal setup. The connection of two magnets generates a stronger field and a larger range of performance. Designing a solid fastener? Apply two magnets instead of one magnet and a striker plate. Exercise caution that when bringing together two magnets, the collision energy is massive. The repulsion force is slightly lower than the connection force, but still significant.
*Flux density in repulsion mode reaches ~0 Gs at the midpoint between the magnets (resulting from vector opposition).
Attention: Estimates show shear force of two same magnets (friction coefficient ~0.15 for Ni-Ni plating).

Table 7: Hazards (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
Car key	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

Powerful magnet radiation poses a real danger to IT equipment and medical implants. These neodymiums produce a flux that disrupts operation of sensitive medical devices. Be aware: the invisible magnetic field penetrates the body and glass. Exceptional care must be taken by people with hearing aids and insulin pumps. The risk also applies to: mechanical watches, remotes, speakers, and screens. Do not place the magnet near 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

Magnetic elements are very brittle – a violent impact against metal can result in shattering. Watch the impact speed – a neodymium left loose turns into a projectile. Impact energy can destroy the magnet or injury to fingers. Always hold the magnet during installation so it doesn't slam with momentum against the metal. A contact at a velocity of dozens of km/h means shattering of the magnet. Wear eye protection when playing with large magnets.

Table 9: Surface protection spec
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)

For outdoor applications, an epoxy coating is required; standard nickel is intended for indoor use. Moisture resistance is crucial for installations in bathrooms or outdoors.

Table 10: Electrical 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 emitted by the magnet pole. Key data in coil applications as well as sensors. P_c value defines the magnet's operating point.

Table 11: Hydrostatics and buoyancy
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%

Warning: Remember to wipe the magnet thoroughly after removing it from water and apply a protective layer (e.g., oil) to avoid corrosion.

The magnetic field penetrates through water without any losses. As a result, your magnet will pull a heavier object from the bottom than if you lifted it in the air.

1. Sliding resistance

*Caution: On a vertical wall, the magnet holds just ~20% of its max power.

2. Plate thickness effect

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

3. Thermal stability

*For N38 material, 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.

Engineering data and GPSR

Elemental analysis

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: 010079-2025

Magnet Unit Converter

Force (pull)

Newtons (N)

lbs

Magnetic Induction

Induction (T)

Simply populate one field, and the tool compute everything else automatically.

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The presented product is an exceptionally strong rod magnet, produced from modern NdFeB material, which, with dimensions of Ø4x8 mm, guarantees the highest energy density. This specific item is characterized by high dimensional repeatability and industrial build quality, making it an ideal solution for the most demanding engineers and designers. As a cylindrical magnet with significant force (approx. 0.35 kg), this product is in stock from our European logistics center, ensuring rapid order fulfillment. Additionally, its triple-layer Ni-Cu-Ni coating effectively protects it against corrosion in standard operating conditions, guaranteeing an aesthetic appearance and durability for years.

This model is created for building electric motors, advanced Hall effect sensors, and efficient filters, where field concentration 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 every gram matters.

Since our magnets have a very precise dimensions, the recommended way is to glue them into holes with a slightly larger diameter (e.g., 4.1 mm) using two-component epoxy glues. To ensure stability in automation, specialized industrial adhesives 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 an optimal price-to-power ratio and operational stability. If you need the strongest 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 impressive magnetic energy density. The key parameter here is the lifting capacity amounting to approximately 0.35 kg (force ~3.48 N), which, with such defined 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 8 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 and disadvantages of rare earth magnets.

Benefits

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

Their power remains stable, and after approximately 10 years it drops only by ~1% (according to research),
They have excellent resistance to weakening of magnetic properties when exposed to opposing magnetic fields,
By using a shiny layer of gold, the element acquires an proper look,
The surface of neodymium magnets generates a maximum magnetic field – this is a distinguishing feature,
Thanks to resistance to high temperature, they can operate (depending on the shape) even at temperatures up to 230°C and higher...
Possibility of precise shaping as well as adapting to complex needs,
Key role in future technologies – they are commonly used in computer drives, motor assemblies, advanced medical instruments, and complex engineering applications.
Compactness – despite small sizes they provide effective action, making them ideal for precision applications

Limitations

Disadvantages of NdFeB magnets:

They are prone to damage upon too strong impacts. To avoid cracks, it is worth securing magnets in special housings. Such protection not only protects the magnet but also increases its resistance to damage
We warn that neodymium magnets can reduce their power at high temperatures. To prevent this, we recommend our specialized [AH] magnets, which work effectively even at 230°C.
Due to the susceptibility of magnets to corrosion in a humid environment, we advise using waterproof magnets made of rubber, plastic or other material resistant to moisture, in case of application outdoors
We suggest cover - magnetic mechanism, due to difficulties in producing threads inside the magnet and complex shapes.
Potential hazard to health – tiny shards of magnets pose a threat, if swallowed, which gains importance in the aspect of protecting the youngest. Additionally, small elements of these magnets can be problematic in diagnostics medical after entering the body.
Due to expensive raw materials, their price exceeds standard values,

Lifting parameters

Best holding force of the magnet in ideal parameters – what affects it?

Holding force of 0.35 kg is a result of laboratory testing performed under standard conditions:

with the application of a yoke made of low-carbon steel, guaranteeing maximum field concentration
whose thickness equals approx. 10 mm
with a surface free of scratches
under conditions of gap-free contact (surface-to-surface)
for force acting at a right angle (pull-off, not shear)
at ambient temperature room level

Practical lifting capacity: influencing factors

Please note that the magnet holding will differ influenced by the following factors, starting with the most relevant:

Gap between surfaces – every millimeter of separation (caused e.g. by veneer or unevenness) drastically reduces the pulling force, often by half at just 0.5 mm.
Angle of force application – maximum parameter is reached only during perpendicular pulling. The resistance to sliding of the magnet along the plate is typically many times lower (approx. 1/5 of the lifting capacity).
Metal thickness – the thinner the sheet, the weaker the hold. Magnetic flux penetrates through instead of converting into lifting capacity.
Steel type – mild steel gives the best results. Alloy admixtures decrease magnetic properties and holding force.
Smoothness – full contact is obtained only on smooth steel. Any scratches and bumps create air cushions, reducing force.
Thermal factor – hot environment weakens magnetic field. Too high temperature can permanently demagnetize the magnet.

Lifting capacity was determined using a steel plate with a smooth surface of optimal thickness (min. 20 mm), under perpendicular detachment force, whereas under parallel forces the holding force is lower. Moreover, even a small distance between the magnet’s surface and the plate decreases the load capacity.

H&S for magnets

Keep away from children

Absolutely store magnets out of reach of children. Choking hazard is significant, and the effects of magnets connecting inside the body are life-threatening.

Sensitization to coating

Allergy Notice: The nickel-copper-nickel coating contains nickel. If an allergic reaction occurs, cease working with magnets and use protective gear.

Magnets are brittle

NdFeB magnets are ceramic materials, meaning they are fragile like glass. Impact of two magnets leads to them shattering into shards.

Health Danger

Individuals with a pacemaker should maintain an large gap from magnets. The magnetism can disrupt the functioning of the life-saving device.

Bone fractures

Risk of injury: The attraction force is so immense that it can cause hematomas, pinching, and broken bones. Use thick gloves.

Conscious usage

Be careful. Neodymium magnets attract from a long distance and snap with huge force, often quicker than you can react.

Operating temperature

Do not overheat. NdFeB magnets are susceptible to temperature. If you require operation above 80°C, ask us about special high-temperature series (H, SH, UH).

Keep away from computers

Device Safety: Strong magnets can ruin data carriers and delicate electronics (pacemakers, medical aids, mechanical watches).

Combustion hazard

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

Impact on smartphones

A strong magnetic field disrupts the operation of magnetometers in smartphones and GPS navigation. Do not bring magnets near a smartphone to avoid breaking the sensors.

Attention! Want to know more? Read our article: Why are neodymium magnets dangerous?

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

Technical modeling of the assembly - technical parameters

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

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

Table 3: Wall mounting (sliding) - vertical pull MW 4x8 / N38

Table 4: Material efficiency (substrate influence) - sheet metal selection MW 4x8 / N38

Table 5: Thermal resistance (material behavior) - power drop MW 4x8 / N38

Table 6: Magnet-Magnet interaction (attraction) - forces in the system MW 4x8 / N38

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

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

Table 9: Surface protection spec MW 4x8 / N38

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

Table 11: Hydrostatics and buoyancy MW 4x8 / N38

1. Sliding resistance

2. Plate thickness effect

3. Thermal stability

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

Elemental analysis

Environmental data

Force (pull)

Magnetic Induction

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Advantages and disadvantages of rare earth magnets.

Benefits

Limitations

Lifting parameters

Best holding force of the magnet in ideal parameters – what affects it?

Practical lifting capacity: influencing factors

H&S for magnets

Keep away from children

Sensitization to coating

Magnets are brittle

Health Danger

Bone fractures

Conscious usage

Operating temperature

Keep away from computers

Combustion hazard

Impact on smartphones

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

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

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

Table 3: Wall mounting (sliding) - vertical pull
MW 4x8 / N38

Table 4: Material efficiency (substrate influence) - sheet metal selection
MW 4x8 / N38

Table 5: Thermal resistance (material behavior) - power drop
MW 4x8 / N38

Table 6: Magnet-Magnet interaction (attraction) - forces in the system
MW 4x8 / N38

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

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

Table 9: Surface protection spec
MW 4x8 / N38

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

Table 11: Hydrostatics and buoyancy
MW 4x8 / N38