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

technical parameters »

0.701 ZŁ with VAT / pcs + price for transport

0.570 ZŁ net + 23% VAT / pcs

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Technical parameters of the product - 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

Physical simulation of the magnet - technical parameters

These data are the outcome of a physical analysis. Results are based on models for the class Nd₂Fe₁₄B. Real-world conditions might slightly differ. Please consider these data as a reference point for designers.

Table 1: Static force (force vs distance) - interaction chart
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

Pulling power weakens significantly with every mm of distance. Keep in mind that even the smallest gap (e.g., dirt, paint, dust) noticeably diminishes the holding power. Neodymiums work optimally in perfect adhesion; distance drastically cuts the force. Observe how flashily the load capacity plummet, when the product does not touch tightly to the metal substrate. When designing the arrangement, avoid additional spacers.

Table 2: Sliding force (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 shows the estimated holding capacity sufficient to initiate the sliding of the magnet downwards on a upright metal surface (assuming typical friction coefficient). The holding force is a function of the gap size 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 placing a magnet on a upright plane (e.g., a car body), it you can count on barely approx. 1/5 of its nominal power. Gravitational force as well as a low friction coefficient mean that products move down easier than they pop off the substrate. Designing a vertical fastening? Remember that the shear force is noticeably lower than the maximum static pull force. On a painted metal, the magnet will give way down under a much lighter weight. Application of an anti-slip coating can significantly raise the stability.

Table 4: Steel thickness (saturation) - power losses
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 unable to take in the full magnetic flux, which squanders power of the holder. Should you mount a strong magnet to a too thin substrate, the magnetism will pass right through and the holding will be smaller. To squeeze the maximum of this magnet's power, you require a sufficiently solid element of steel. The saturation phenomenon causes that on sheet metal structures (e.g., thin profiles), the product works worse. We advise picking the steel dimension from these parameters.

Table 5: Thermal resistance (material behavior) - 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 lose parameters above the temperature limit. Protect against heat – excessive heat can irreversibly destroy this product. With increasing heat, the magnet's force momentarily lowers. Refrain from using this product close to ovens exceeding its safe range. Exceeding the critical threshold will result in destruction of magnetic properties.

*Technical advisory: Thermal stability is determined by both grade, and the Permeance Coefficient Pc. Thin magnets (pancake types) are more susceptible to demagnetization under lower heat stress than long magnets. The danger warning in the table points to a risk of irreversible loss for this specific geometry.

Table 6: Magnet-Magnet interaction (attraction) - field collision
MW 4x8 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear 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 strong neodymiums interact from a significantly greater distance than a neodymium and metal setup. The setup of magnet-to-magnet creates a more powerful interaction and a wider radius of action. Want to build a solid fastener? Utilize two neodymiums instead of one magnet and a steel. Be careful that when bringing together two magnets, the pinch force is massive. The levitation is marginally weaker than the attraction, but still impressive.
*Flux density between like poles drops to ~0 Gs at the midpoint of the gap (resulting from vector opposition).
Attention: Calculations demonstrate shear force of dual identical neodymium magnets (friction ~0.15 for Ni-Ni coating).

Table 7: Safety (HSE) (implants) - 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
Timepiece	20 Gs (2.0 mT)	2.0 cm
Mobile device	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

Powerful magnet radiation is a real danger to IT equipment and pacemakers. These magnets produce a flux that prevents correct functioning of digital equipment. Be aware: the unseen radiation penetrates the body and plastic. Special caution must be taken by people with hearing aids and insulin pumps. The risk also applies to: mechanical watches, remotes, speakers, and screens. Do not bring the product near payment cards, HDD media, or precise measuring instruments.

Table 8: Collisions (cracking risk) - 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

NdFeB products are prone to chipping – a violent impact against metal can result in shattering. Control the attraction moment – a neodymium left loose becomes dangerous. Impact energy can cause material chips or injury to fingers. Be sure to control the product during installation so it doesn't hit violently against the metal. A contact at a velocity of dozens of km/h ends with a crack of the neodymium. Use safety goggles 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: 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 in coil applications and motors. The P_c coefficient determines the magnet's operating point.

Table 11: Submerged application
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: 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. Buoyancy helps in lifting finds.

1. Vertical hold

*Warning: On a vertical surface, the magnet retains just approx. 20-30% of its nominal pull.

2. Plate thickness effect

*Thin steel (e.g. computer case) severely weakens the holding force.

3. Temperature resistance

*For N38 material, the max working temp is 80°C.

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

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

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 and environmental data

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: 010079-2026

Magnet Unit Converter

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MW 25x5 / N38 - cylindrical magnet

8.39 ZŁ brutto / pcs

This product is an extremely powerful cylindrical magnet, composed of modern NdFeB material, which, with dimensions of Ø4x8 mm, guarantees the highest energy density. This specific item features high dimensional repeatability and industrial build quality, making it an ideal solution for the most demanding engineers and designers. As a magnetic rod with impressive force (approx. 0.35 kg), this product is available off-the-shelf from our European logistics center, ensuring rapid order fulfillment. Additionally, its triple-layer Ni-Cu-Ni coating secures it against corrosion in typical operating conditions, guaranteeing an aesthetic appearance and durability for years.

It successfully proves itself in DIY projects, advanced automation, and broadly understood industry, serving as a fastening or actuating element. Thanks to the pull force of 3.48 N with a weight of only 0.75 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 chipping the coating 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.

Grade N38 is the most popular standard for industrial 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 available off-the-shelf 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 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 through the diameter if your project requires it.

Advantages and disadvantages of rare earth magnets.

Advantages

Besides their immense pulling force, neodymium magnets offer the following advantages:

They retain attractive force for almost ten years – the loss is just ~1% (in theory),
They feature excellent resistance to weakening of magnetic properties as a result of opposing magnetic fields,
Thanks to the shiny finish, the coating of Ni-Cu-Ni, gold, or silver gives an visually attractive appearance,
The surface of neodymium magnets generates a unique magnetic field – this is one of their assets,
Due to their durability and thermal resistance, neodymium magnets are capable of operate (depending on the shape) even at high temperatures reaching 230°C or more...
Possibility of custom machining as well as optimizing to specific conditions,
Universal use in high-tech industry – they are commonly used in hard drives, electromotive mechanisms, diagnostic systems, also industrial machines.
Relatively small size with high pulling force – neodymium magnets offer high power in small dimensions, which enables their usage in miniature devices

Limitations

Disadvantages of neodymium 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 improves its resistance to damage
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 very resistant to heat
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, when using outdoors
We suggest a housing - magnetic holder, due to difficulties in creating threads inside the magnet and complicated forms.
Possible danger resulting from small fragments of magnets are risky, in case of ingestion, which is particularly important in the context of child safety. Additionally, small elements of these magnets are able to complicate diagnosis medical after entering the body.
Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications

Pull force analysis

Maximum holding power of the magnet – what affects it?

Information about lifting capacity was defined for ideal contact conditions, including:

with the application of a sheet made of low-carbon steel, guaranteeing full magnetic saturation
whose transverse dimension is min. 10 mm
with a plane free of scratches
with total lack of distance (without paint)
for force applied at a right angle (in the magnet axis)
in stable room temperature

Practical aspects of lifting capacity – factors

During everyday use, the actual holding force results from a number of factors, ranked from crucial:

Distance – the presence of any layer (paint, dirt, air) interrupts the magnetic circuit, which lowers power steeply (even by 50% at 0.5 mm).
Force direction – catalog parameter refers to detachment vertically. When attempting to slide, the magnet holds significantly lower power (typically approx. 20-30% of nominal force).
Wall thickness – the thinner the sheet, the weaker the hold. Part of the magnetic field passes through the material instead of generating force.
Metal type – not every steel attracts identically. High carbon content weaken the interaction with the magnet.
Surface condition – smooth surfaces guarantee perfect abutment, which improves force. Rough surfaces weaken the grip.
Thermal environment – temperature increase results in weakening of induction. Check the maximum operating temperature for a given model.

Lifting capacity testing was conducted on a smooth plate of optimal thickness, under a perpendicular pulling force, however under parallel forces the lifting capacity is smaller. In addition, even a small distance between the magnet and the plate decreases the lifting capacity.

Safe handling of NdFeB magnets

Danger to the youngest

Product intended for adults. Small elements can be swallowed, leading to intestinal necrosis. Keep out of reach of kids and pets.

Handling rules

Handle magnets with awareness. Their huge power can shock even professionals. Plan your moves and respect their power.

Avoid contact if allergic

Medical facts indicate that nickel (the usual finish) is a potent allergen. For allergy sufferers, refrain from direct skin contact and choose versions in plastic housing.

Machining danger

Dust created during machining of magnets is flammable. Avoid drilling into magnets unless you are an expert.

Physical harm

Mind your fingers. Two powerful magnets will snap together instantly with a force of massive weight, crushing everything in their path. Exercise extreme caution!

Magnet fragility

Protect your eyes. Magnets can explode upon violent connection, launching sharp fragments into the air. We recommend safety glasses.

Health Danger

Warning for patients: Powerful magnets affect electronics. Keep minimum 30 cm distance or ask another person to work with the magnets.

Compass and GPS

A powerful magnetic field negatively affects the functioning of compasses in smartphones and GPS navigation. Keep magnets close to a device to prevent breaking the sensors.

Thermal limits

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

Cards and drives

Powerful magnetic fields can erase data on payment cards, HDDs, and other magnetic media. Maintain a gap of min. 10 cm.

Caution! More info about hazards in the article: Safety of working with magnets.

MW 4x8 / N38 - cylindrical magnet

Technical parameters of the product - MW 4x8 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical simulation of the magnet - technical parameters

Table 1: Static force (force vs distance) - interaction chart MW 4x8 / N38

Table 2: Sliding force (wall) MW 4x8 / N38

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

Table 4: Steel thickness (saturation) - power losses MW 4x8 / N38

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

Table 6: Magnet-Magnet interaction (attraction) - field collision MW 4x8 / N38

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

Table 8: Collisions (cracking risk) - collision effects MW 4x8 / N38

Table 9: Surface protection spec MW 4x8 / N38

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

Table 11: Submerged application MW 4x8 / N38

1. Vertical hold

2. Plate thickness effect

3. Temperature resistance

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

Material specification

Environmental data

Force (pull)

Field Strength

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Advantages and disadvantages of rare earth magnets.

Advantages

Limitations

Pull force analysis

Maximum holding power of the magnet – what affects it?

Practical aspects of lifting capacity – factors

Safe handling of NdFeB magnets

Danger to the youngest

Handling rules

Avoid contact if allergic

Machining danger

Physical harm

Magnet fragility

Health Danger

Compass and GPS

Thermal limits

Cards and drives

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (force vs distance) - interaction chart
MW 4x8 / N38

Table 2: Sliding force (wall)
MW 4x8 / N38

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

Table 4: Steel thickness (saturation) - power losses
MW 4x8 / N38

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

Table 6: Magnet-Magnet interaction (attraction) - field collision
MW 4x8 / N38

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

Table 8: Collisions (cracking risk) - collision effects
MW 4x8 / N38

Table 9: Surface protection spec
MW 4x8 / N38

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

Table 11: Submerged application
MW 4x8 / N38