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MW 5x4 / 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 010089

GTIN/EAN: 5906301810889

5.00

Diameter Ø

5 mm [±0,1 mm]

Height

4 mm [±0,1 mm]

Weight

0.59 g

Magnetization Direction

↑ axial

Load capacity

0.84 kg / 8.26 N

Magnetic Induction

524.45 mT / 5244 Gs

Coating

[NiCuNi] Nickel

product specifications »

0.369 ZŁ with VAT / pcs + price for transport

0.300 ZŁ net + 23% VAT / pcs

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Physical properties - MW 5x4 / N38 - cylindrical magnet

Specification / characteristics - MW 5x4 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010089
GTIN/EAN	5906301810889
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	5 mm [±0,1 mm]
Height	4 mm [±0,1 mm]
Weight	0.59 g
Magnetization Direction	↑ axial
Load capacity ~ ?	0.84 kg / 8.26 N
Magnetic Induction ~ ?	524.45 mT / 5244 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 5x4 / 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 modeling of the magnet - data

Presented information represent the outcome of a physical simulation. Results rely on models for the class Nd₂Fe₁₄B. Actual parameters may deviate from the simulation results. Treat these data as a preliminary roadmap during assembly planning.

Table 1: Static pull force (force vs distance) - interaction chart
MW 5x4 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	5236 Gs 523.6 mT	0.84 kg / 1.85 lbs 840.0 g / 8.2 N	weak grip
1 mm	3243 Gs 324.3 mT	0.32 kg / 0.71 lbs 322.1 g / 3.2 N	weak grip
2 mm	1850 Gs 185.0 mT	0.10 kg / 0.23 lbs 104.8 g / 1.0 N	weak grip
3 mm	1076 Gs 107.6 mT	0.04 kg / 0.08 lbs 35.5 g / 0.3 N	weak grip
5 mm	428 Gs 42.8 mT	0.01 kg / 0.01 lbs 5.6 g / 0.1 N	weak grip
10 mm	89 Gs 8.9 mT	0.00 kg / 0.00 lbs 0.2 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 weakens drastically per each millimeter of gap. Remember that even a very thin break (e.g., dirt, paint, rust) noticeably weakens the grip. Magnets work optimally at the point of direct contact; gap drastically cuts the power. Notice how flashily the parameters drop, when the magnet does not adhere directly to the metal substrate. When planning the mounting, eliminate redundant distances.

Table 2: Vertical force (wall)
MW 5x4 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	0.17 kg / 0.37 lbs 168.0 g / 1.6 N
1 mm	Stal (~0.2)	0.06 kg / 0.14 lbs 64.0 g / 0.6 N
2 mm	Stal (~0.2)	0.02 kg / 0.04 lbs 20.0 g / 0.2 N
3 mm	Stal (~0.2)	0.01 kg / 0.02 lbs 8.0 g / 0.1 N
5 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 2.0 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

This section presents the theoretical holding capacity needed to start the downward movement of the magnet downwards on a vertical metal surface (assuming standard friction). This value is relative to the air gap between the magnet and the surface.

Table 3: Wall mounting (shearing) - vertical pull
MW 5x4 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	0.25 kg / 0.56 lbs 252.0 g / 2.5 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.17 kg / 0.37 lbs 168.0 g / 1.6 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.08 kg / 0.19 lbs 84.0 g / 0.8 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	0.42 kg / 0.93 lbs 420.0 g / 4.1 N

When mounting a holder on a upright plane (e.g., a board), it you can count on only about 1/5 of its nominal power. Gravity as well as a low friction coefficient mean that products slide down easier than they pop off the substrate. Want to create a hanger? Consider that the sliding force is noticeably lower than the maximum static pull force. On a slippery surface, the magnet will give way down under a noticeably lighter load. Application of an anti-slip pad can significantly increase the grip.

Table 4: Steel thickness (saturation) - power losses
MW 5x4 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.08 kg / 0.19 lbs 84.0 g / 0.8 N
1 mm	25%	0.21 kg / 0.46 lbs 210.0 g / 2.1 N
2 mm	50%	0.42 kg / 0.93 lbs 420.0 g / 4.1 N
3 mm	75%	0.63 kg / 1.39 lbs 630.0 g / 6.2 N
5 mm	100%	0.84 kg / 1.85 lbs 840.0 g / 8.2 N
10 mm	100%	0.84 kg / 1.85 lbs 840.0 g / 8.2 N
11 mm	100%	0.84 kg / 1.85 lbs 840.0 g / 8.2 N
12 mm	100%	0.84 kg / 1.85 lbs 840.0 g / 8.2 N

A too thin steel is incapable of take in the entire magnetic field, which weakens actual performance of the magnet. Should you attach a powerful product to a weak sheet, the field will penetrate right through and the attraction force will be weaker. To achieve full efficiency of this magnet's power, you need a suitably thick element of steel. The material oversaturation means that on delicate walls (e.g., car bodies), the holder holds weaker. We advise picking the steel dimension based on the following data.

Table 5: Working in heat (stability) - resistance threshold
MW 5x4 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	0.84 kg / 1.85 lbs 840.0 g / 8.2 N	OK
40 °C	-2.2%	0.82 kg / 1.81 lbs 821.5 g / 8.1 N	OK
60 °C	-4.4%	0.80 kg / 1.77 lbs 803.0 g / 7.9 N	OK
80 °C	-6.6%	0.78 kg / 1.73 lbs 784.6 g / 7.7 N
100 °C	-28.8%	0.60 kg / 1.32 lbs 598.1 g / 5.9 N

Standard neodymium magnets lose strength after exceeding the maximum temperature. Watch out for overheating – heat can permanently damage this magnet. With increasing heat, the magnet's power briefly decreases. Avoid using this product close to ovens higher than its working range. Too high temperature will cause destruction of magnetic properties.

*Technical advisory: Heat tolerance is determined by both grade, but also on the magnet's shape. Flat magnets (low permeance coefficient) may lose charge permanently under lower heat stress than taller cylinders. Red status in the table points to permanent field degradation for this particular item.

Table 6: Two magnets (repulsion) - field range
MW 5x4 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Sliding Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	3.32 kg / 7.32 lbs 5 894 Gs	0.50 kg / 1.10 lbs 498 g / 4.9 N	N/A
1 mm	2.14 kg / 4.72 lbs 8 408 Gs	0.32 kg / 0.71 lbs 321 g / 3.1 N	1.93 kg / 4.24 lbs ~0 Gs
2 mm	1.27 kg / 2.81 lbs 6 486 Gs	0.19 kg / 0.42 lbs 191 g / 1.9 N	1.15 kg / 2.53 lbs ~0 Gs
3 mm	0.73 kg / 1.61 lbs 4 909 Gs	0.11 kg / 0.24 lbs 109 g / 1.1 N	0.66 kg / 1.45 lbs ~0 Gs
5 mm	0.24 kg / 0.53 lbs 2 805 Gs	0.04 kg / 0.08 lbs 36 g / 0.4 N	0.21 kg / 0.47 lbs ~0 Gs
10 mm	0.02 kg / 0.05 lbs 857 Gs	0.00 kg / 0.01 lbs 3 g / 0.0 N	0.02 kg / 0.04 lbs ~0 Gs
20 mm	0.00 kg / 0.00 lbs 177 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 16 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 9 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 6 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 4 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 2 Gs	0.00 kg / 0.00 lbs 0 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs

Two magnets attract each other from a significantly greater distance than a magnet and steel setup. The connection of magnet-to-magnet generates a stronger field and a larger range of performance. Designing a powerful holder? Apply two magnets instead of one magnet and a steel. Be careful that when attracting two neodymiums, the impact force is extreme. The levitation is a bit weaker than the attraction, but still significant.
*Flux density in repulsion mode reaches ~0 Gs in the exact middle between the magnets (due to field cancellation).
Note: Figures demonstrate sliding force of dual same magnets (friction coefficient ~0.15 for Ni-Ni coating).

Table 7: Hazards (electronics) - precautionary measures
MW 5x4 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	3.0 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)	1.0 cm
HDD hard drive	600 Gs (60.0 mT)	0.5 cm

Powerful magnet radiation poses a serious hazard to electronic devices as well as medical implants. These NdFeB products generate a flux that disrupts operation of digital equipment. Remember: the invisible magnetic field passes through tissues and plastic. Increased vigilance must be exercised by people with hearing aids and insulin pumps. Also at risk are: automatic timepieces, car keys, speakers, and screens. Avoid contact with magnetic cards, HDD media, or sensitive navigation tools.

Table 8: Dynamics (cracking risk) - collision effects
MW 5x4 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	38.06 km/h (10.57 m/s)	0.03 J
30 mm	65.91 km/h (18.31 m/s)	0.10 J
50 mm	85.09 km/h (23.64 m/s)	0.16 J
100 mm	120.34 km/h (33.43 m/s)	0.33 J

Neodymium magnets are delicate – a strong collision with metal risks their cracking. Watch the impact speed – a magnet released freely speeds with massive force. Kinetic force can cause material chips or injury to fingers. Be sure to control the product during mounting so it doesn't hit violently against the metal. A collision at high speed means shattering of the magnet. Use safety goggles when working with large magnets.

Table 9: Corrosion resistance
MW 5x4 / 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. Moisture resistance is crucial for installations in bathrooms or outdoors.

Table 10: Construction data (Flux)
MW 5x4 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	1 046 Mx	10.5 µWb
P_c Coefficient	0.79	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: Underwater work (magnet fishing)
MW 5x4 / N38

Environment	Effective steel pull	Effect
Air (land)	0.84 kg	Standard
Water (riverbed)	0.96 kg (+0.12 kg buoyancy gain)	+14.5%

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

Contrary to myths, water does not block the magnetic field. However, remember the water resistance when pulling the rope quickly.

1. Wall mount (shear)

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

2. Plate thickness effect

*Thin steel (e.g. 0.5mm PC case) drastically weakens the holding force.

3. Power loss vs temp

*For N38 grade, the critical limit is 80°C.

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 0.79

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.

Engineering data and GPSR

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%

Sustainability

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: 010089-2026

Measurement Calculator

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The presented product is a very strong rod magnet, manufactured from advanced NdFeB material, which, with dimensions of Ø5x4 mm, guarantees the highest energy density. This specific item boasts high dimensional repeatability and professional build quality, making it a perfect solution for professional engineers and designers. As a magnetic rod with impressive force (approx. 0.84 kg), this product is available off-the-shelf from our European logistics center, ensuring lightning-fast order fulfillment. Additionally, its Ni-Cu-Ni coating effectively protects it against corrosion in standard operating conditions, guaranteeing an aesthetic appearance and durability for years.

It finds application in DIY projects, advanced automation, and broadly understood industry, serving as a fastening or actuating element. Thanks to the high power of 8.26 N with a weight of only 0.59 g, this rod is indispensable in miniature devices and wherever every gram matters.

Since our magnets have a tolerance of ±0.1mm, the recommended way is to glue them into holes with a slightly larger diameter (e.g., 5.1 mm) using two-component epoxy glues. To ensure long-term durability in automation, anaerobic resins are used, which do not react with the nickel coating 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 even stronger magnets in the same volume (Ø5x4), 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 Ø5x4 mm, which, at a weight of 0.59 g, makes it an element with high magnetic energy density. The key parameter here is the lifting capacity amounting to approximately 0.84 kg (force ~8.26 N), which, with such compact dimensions, proves the high power of the NdFeB material. The product has a [NiCuNi] coating, which secures it against oxidation, giving it an aesthetic, silvery shine.

This rod magnet is magnetized axially (along the height of 4 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.

Strengths as well as weaknesses of neodymium magnets.

Pros

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

They do not lose power, even after nearly ten years – the decrease in lifting capacity is only ~1% (theoretically),
They possess excellent resistance to magnetism drop as a result of external fields,
A magnet with a shiny nickel surface has an effective appearance,
Magnets are characterized by huge magnetic induction on the outer layer,
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...
Thanks to freedom in designing and the ability to customize to client solutions,
Key role in innovative solutions – they are utilized in magnetic memories, electric drive systems, diagnostic systems, also industrial machines.
Compactness – despite small sizes they generate large force, making them ideal for precision applications

Limitations

Problematic aspects of neodymium magnets and proposals for their use:

Brittleness is one of their disadvantages. Upon intense impact they can break. We recommend keeping them in a strong case, which not only secures them against impacts but also raises their durability
Neodymium magnets lose their strength 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 stability 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
Limited possibility of making threads in the magnet and complicated shapes - recommended is cover - mounting mechanism.
Possible danger to health – tiny shards of magnets pose a threat, if swallowed, which gains importance in the aspect of protecting the youngest. It is also worth noting that tiny parts of these magnets can disrupt the diagnostic process medical when they are in the body.
Due to expensive raw materials, their price is relatively high,

Holding force characteristics

Maximum lifting capacity of the magnet – what it depends on?

The force parameter is a theoretical maximum value conducted under specific, ideal conditions:

using a plate made of high-permeability steel, functioning as a magnetic yoke
possessing a massiveness of minimum 10 mm to ensure full flux closure
characterized by even structure
with direct contact (no paint)
for force applied at a right angle (in the magnet axis)
at ambient temperature approx. 20 degrees Celsius

Magnet lifting force in use – key factors

In practice, the actual holding force results from several key aspects, presented from crucial:

Gap between surfaces – even a fraction of a millimeter of separation (caused e.g. by varnish or unevenness) significantly weakens the magnet efficiency, often by half at just 0.5 mm.
Loading method – catalog parameter refers to pulling vertically. When applying parallel force, the magnet exhibits 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.
Chemical composition of the base – mild steel gives the best results. Higher carbon content decrease magnetic properties and lifting capacity.
Surface condition – ground elements ensure maximum contact, which improves force. Rough surfaces reduce efficiency.
Thermal environment – temperature increase results in weakening of force. Check the maximum operating temperature for a given model.

Lifting capacity testing was conducted on plates with a smooth surface of optimal thickness, under perpendicular forces, in contrast under parallel forces the lifting capacity is smaller. Moreover, even a minimal clearance between the magnet’s surface and the plate lowers the load capacity.

Precautions when working with NdFeB magnets

Medical interference

People with a heart stimulator should keep an safe separation from magnets. The magnetism can stop the functioning of the implant.

Threat to navigation

Remember: rare earth magnets produce a field that confuses sensitive sensors. Keep a safe distance from your phone, tablet, and GPS.

Combustion hazard

Mechanical processing of neodymium magnets poses a fire hazard. Magnetic powder reacts violently with oxygen and is hard to extinguish.

Cards and drives

Intense magnetic fields can corrupt files on payment cards, hard drives, and storage devices. Stay away of min. 10 cm.

Do not underestimate power

Before use, read the rules. Uncontrolled attraction can break the magnet or hurt your hand. Think ahead.

Shattering risk

NdFeB magnets are sintered ceramics, which means they are very brittle. Impact of two magnets will cause them cracking into shards.

Thermal limits

Watch the temperature. Exposing the magnet to high heat will permanently weaken its magnetic structure and strength.

No play value

Adult use only. Tiny parts pose a choking risk, leading to severe trauma. Keep out of reach of kids and pets.

Allergy Warning

Nickel alert: The Ni-Cu-Ni coating contains nickel. If an allergic reaction occurs, immediately stop handling magnets and wear gloves.

Crushing force

Risk of injury: The pulling power is so great that it can result in hematomas, crushing, and even bone fractures. Use thick gloves.

Attention! Looking for details? Check our post: Why are neodymium magnets dangerous?

MW 5x4 / N38 - cylindrical magnet

Physical properties - MW 5x4 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Engineering modeling of the magnet - data

Table 1: Static pull force (force vs distance) - interaction chart MW 5x4 / N38

Table 2: Vertical force (wall) MW 5x4 / N38

Table 3: Wall mounting (shearing) - vertical pull MW 5x4 / N38

Table 4: Steel thickness (saturation) - power losses MW 5x4 / N38

Table 5: Working in heat (stability) - resistance threshold MW 5x4 / N38

Table 6: Two magnets (repulsion) - field range MW 5x4 / N38

Table 7: Hazards (electronics) - precautionary measures MW 5x4 / N38

Table 8: Dynamics (cracking risk) - collision effects MW 5x4 / N38

Table 9: Corrosion resistance MW 5x4 / N38

Table 10: Construction data (Flux) MW 5x4 / N38

Table 11: Underwater work (magnet fishing) MW 5x4 / N38

1. Wall mount (shear)

2. Plate thickness effect

3. Power loss vs temp

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

Chemical composition

Sustainability

Magnet pull force

Magnetic Field

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Strengths as well as weaknesses of neodymium magnets.

Pros

Limitations

Holding force characteristics

Maximum lifting capacity of the magnet – what it depends on?

Magnet lifting force in use – key factors

Precautions when working with NdFeB magnets

Medical interference

Threat to navigation

Combustion hazard

Cards and drives

Do not underestimate power

Shattering risk

Thermal limits

No play value

Allergy Warning

Crushing force

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (force vs distance) - interaction chart
MW 5x4 / N38

Table 2: Vertical force (wall)
MW 5x4 / N38

Table 3: Wall mounting (shearing) - vertical pull
MW 5x4 / N38

Table 4: Steel thickness (saturation) - power losses
MW 5x4 / N38

Table 5: Working in heat (stability) - resistance threshold
MW 5x4 / N38

Table 6: Two magnets (repulsion) - field range
MW 5x4 / N38

Table 7: Hazards (electronics) - precautionary measures
MW 5x4 / N38

Table 8: Dynamics (cracking risk) - collision effects
MW 5x4 / N38

Table 9: Corrosion resistance
MW 5x4 / N38

Table 10: Construction data (Flux)
MW 5x4 / N38

Table 11: Underwater work (magnet fishing)
MW 5x4 / N38