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MW 4x4 / 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 010076

GTIN/EAN: 5906301810759

5.00

Diameter Ø

4 mm [±0,1 mm]

Height

4 mm [±0,1 mm]

Weight

0.38 g

Magnetization Direction

↑ axial

Load capacity

0.51 kg / 4.96 N

Magnetic Induction

552.79 mT / 5528 Gs

Coating

[NiCuNi] Nickel

see parameters »

0.406 ZŁ with VAT / pcs + price for transport

0.330 ZŁ net + 23% VAT / pcs

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Pick up the phone and ask +48 888 99 98 98 or let us know via form through our site.
Lifting power along with structure of a neodymium magnet can be calculated with our our magnetic calculator.

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Detailed specification - MW 4x4 / N38 - cylindrical magnet

Specification / characteristics - MW 4x4 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010076
GTIN/EAN	5906301810759
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	4 mm [±0,1 mm]
Weight	0.38 g
Magnetization Direction	↑ axial
Load capacity ~ ?	0.51 kg / 4.96 N
Magnetic Induction ~ ?	552.79 mT / 5528 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 4x4 / 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 product - technical parameters

Presented information constitute the direct effect of a mathematical simulation. Results rely on models for the class Nd₂Fe₁₄B. Actual conditions may differ from theoretical values. Use these calculations as a reference point when designing systems.

Table 1: Static force (pull vs distance) - characteristics
MW 4x4 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	5517 Gs 551.7 mT	0.51 kg / 1.12 lbs 510.0 g / 5.0 N	weak grip
1 mm	2984 Gs 298.4 mT	0.15 kg / 0.33 lbs 149.2 g / 1.5 N	weak grip
2 mm	1498 Gs 149.8 mT	0.04 kg / 0.08 lbs 37.6 g / 0.4 N	weak grip
3 mm	803 Gs 80.3 mT	0.01 kg / 0.02 lbs 10.8 g / 0.1 N	weak grip
5 mm	296 Gs 29.6 mT	0.00 kg / 0.00 lbs 1.5 g / 0.0 N	weak grip
10 mm	58 Gs 5.8 mT	0.00 kg / 0.00 lbs 0.1 g / 0.0 N	weak grip
15 mm	20 Gs 2.0 mT	0.00 kg / 0.00 lbs 0.0 g / 0.0 N	weak grip
20 mm	9 Gs 0.9 mT	0.00 kg / 0.00 lbs 0.0 g / 0.0 N	weak grip
30 mm	3 Gs 0.3 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

Pulling power decreases drastically with every subsequent millimeter of gap. Keep in mind that even the smallest gap (e.g., dirt, varnish, dust) strongly diminishes the holding power. Magnetic products hold optimally in perfect adhesion; gap drastically cuts the force. Analyze how rapidly the parameters fall, when the product does not touch flatly to the metal substrate. When planning the mounting, avoid additional spacers.

Table 2: Slippage capacity (wall)
MW 4x4 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	0.10 kg / 0.22 lbs 102.0 g / 1.0 N
1 mm	Stal (~0.2)	0.03 kg / 0.07 lbs 30.0 g / 0.3 N
2 mm	Stal (~0.2)	0.01 kg / 0.02 lbs 8.0 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 table below defines the theoretical force necessary to start the shifting of the magnet downwards along a vertical metal surface (assuming typical friction coefficient). This value is relative to the gap size between the magnet and the metal.

Table 3: Vertical assembly (shearing) - vertical pull
MW 4x4 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	0.15 kg / 0.34 lbs 153.0 g / 1.5 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.10 kg / 0.22 lbs 102.0 g / 1.0 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.05 kg / 0.11 lbs 51.0 g / 0.5 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	0.26 kg / 0.56 lbs 255.0 g / 2.5 N

When hanging a element on a vertical surface (e.g., a fridge), it will only hold just approx. 20%-30% of nominal attraction strength. Gravitational force and a low friction coefficient mean that magnets slide down easier than they pull off. Want to create a wall mount? Remember that the sliding force is noticeably lower than the maximum static pull force. On a slippery surface, the element will slip down under a much lighter cargo. Using a rubber coating can significantly improve the result.

Table 4: Steel thickness (saturation) - sheet metal selection
MW 4x4 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.05 kg / 0.11 lbs 51.0 g / 0.5 N
1 mm	25%	0.13 kg / 0.28 lbs 127.5 g / 1.3 N
2 mm	50%	0.26 kg / 0.56 lbs 255.0 g / 2.5 N
3 mm	75%	0.38 kg / 0.84 lbs 382.5 g / 3.8 N
5 mm	100%	0.51 kg / 1.12 lbs 510.0 g / 5.0 N
10 mm	100%	0.51 kg / 1.12 lbs 510.0 g / 5.0 N
11 mm	100%	0.51 kg / 1.12 lbs 510.0 g / 5.0 N
12 mm	100%	0.51 kg / 1.12 lbs 510.0 g / 5.0 N

A too thin steel is incapable of take in the entire magnetic field, which wastes potential of the holder. Should you mount a strong magnet to a thin surface, the flux will penetrate right through and the pull force will drop sharply. To squeeze full efficiency of this neodymium's potential, you require a sufficiently solid piece of steel. The saturation phenomenon causes that on thin elements (e.g., car bodies), the product works worse. We recommend selecting the steel dimension from these parameters.

Table 5: Thermal stability (material behavior) - power drop
MW 4x4 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	0.51 kg / 1.12 lbs 510.0 g / 5.0 N	OK
40 °C	-2.2%	0.50 kg / 1.10 lbs 498.8 g / 4.9 N	OK
60 °C	-4.4%	0.49 kg / 1.07 lbs 487.6 g / 4.8 N	OK
80 °C	-6.6%	0.48 kg / 1.05 lbs 476.3 g / 4.7 N
100 °C	-28.8%	0.36 kg / 0.80 lbs 363.1 g / 3.6 N

Classic neodymiums irreversibly lose strength after exceeding the maximum temperature. Watch out for overheating – high temperature can permanently demagnetize this magnet. With every degree above norm, the magnet's power briefly lowers. Refrain from using this product near heat sources exceeding its safe range. Too high temperature will lead to permanent loss of magnetism.

*Technical advisory: Thermal stability is determined by both grade, and the Permeance Coefficient Pc. Thin magnets (pancake types) are more susceptible to demagnetization at lower temperatures compared to rod magnets. The danger warning in the table signals permanent field degradation for this particular item.

Table 6: Magnet-Magnet interaction (attraction) - field range
MW 4x4 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Sliding Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	2.36 kg / 5.20 lbs 5 984 Gs	0.35 kg / 0.78 lbs 354 g / 3.5 N	N/A
1 mm	1.34 kg / 2.96 lbs 8 324 Gs	0.20 kg / 0.44 lbs 201 g / 2.0 N	1.21 kg / 2.66 lbs ~0 Gs
2 mm	0.69 kg / 1.52 lbs 5 968 Gs	0.10 kg / 0.23 lbs 103 g / 1.0 N	0.62 kg / 1.37 lbs ~0 Gs
3 mm	0.34 kg / 0.76 lbs 4 213 Gs	0.05 kg / 0.11 lbs 52 g / 0.5 N	0.31 kg / 0.68 lbs ~0 Gs
5 mm	0.09 kg / 0.20 lbs 2 169 Gs	0.01 kg / 0.03 lbs 14 g / 0.1 N	0.08 kg / 0.18 lbs ~0 Gs
10 mm	0.01 kg / 0.01 lbs 592 Gs	0.00 kg / 0.00 lbs 1 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs
20 mm	0.00 kg / 0.00 lbs 116 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 10 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 6 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 4 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 3 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 2 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 1 Gs	0.00 kg / 0.00 lbs 0 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs

Two strong neodymiums attract each other from a significantly greater distance than a magnet and steel combination. The setup of magnet-to-magnet creates a more powerful interaction and a larger range of performance. Designing a solid fastener? Utilize two neodymiums instead of a neodymium and a steel. Be careful that when bringing together two magnets, the collision energy is huge. The repulsion force is slightly lower than the attraction, but still large.
*The magnetic induction in repulsion mode reaches ~0 Gs at the geometric center between the magnets (due to field cancellation).
* Figures demonstrate sliding force of dual same neodymium magnets (friction coefficient ~0.15 for Ni-Ni layer).

Table 7: Protective zones (electronics) - warnings
MW 4x4 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	3.0 cm
Hearing aid	10 Gs (1.0 mT)	2.0 cm
Timepiece	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

Extremely neodym field is a real danger to electronic devices as well as pacemakers. These neodymiums generate a field that prevents correct functioning of sensitive medical devices. Remember: the unseen radiation penetrates the body and glass. Exceptional care must be exercised by people with cochlear implants and insulin pumps. Influence will be felt by: mechanical watches, remotes, membranes, and screens. Avoid contact with magnetic cards, hard drives, or sensitive navigation tools.

Table 8: Impact energy (kinetic energy) - warning
MW 4x4 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	36.95 km/h (10.26 m/s)	0.02 J
30 mm	63.99 km/h (17.78 m/s)	0.06 J
50 mm	82.62 km/h (22.95 m/s)	0.10 J
100 mm	116.84 km/h (32.45 m/s)	0.20 J

Neodymium magnets are prone to chipping – a collision with steel causes immediate chipping. Pay attention to connection velocity – a magnet released freely speeds with massive force. Striking energy can trigger coating fragments or dangerous crushing to skin. Be sure to control the product during installation so it doesn't hit with great force against the steel surface. A contact at a velocity of dozens of km/h almost guarantees destruction of the neodymium. Wear safety glasses when working with powerful specimens.

Table 9: Surface protection spec
MW 4x4 / N38

Technical parameter	Value / Description
Coating type	[NiCuNi] Nickel
Layer structure	Nickel - Copper - Nickel
Layer thickness	10-20 µm
Salt spray test (SST) ?	24 h
Recommended environment	Indoors only (dry)

The following table defines the conditions under which this product can be safely used. Improper coating selection is the most common cause of magnet failure over time.

Table 10: Electrical data (P_c)
MW 4x4 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	717 Mx	7.2 µWb
P_c Coefficient	0.89	High (Stable)

Flux value passing through the pole surface. Essential parameter in coil applications as well as sensors. P_c value defines the magnet's operating point.

Table 11: Physics of underwater searching
MW 4x4 / N38

Environment	Effective steel pull	Effect
Air (land)	0.51 kg	Standard
Water (riverbed)	0.58 kg (+0.07 kg buoyancy gain)	+14.5%

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

Water displaces steel, making heavy objects slightly lighter. Note: for permanent underwater work, we recommend magnets with an anti-corrosive (epoxy) coating.

1. Vertical hold

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

2. Plate thickness effect

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

3. Temperature resistance

*For standard magnets, 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) = 0.89

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

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: 010076-2026

Magnet Unit Converter

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MPL 50x50x25 / N38 - lamellar magnet

159.90 ZŁ brutto / pcs

This product is an incredibly powerful rod magnet, composed of modern NdFeB material, which, with dimensions of Ø4x4 mm, guarantees maximum efficiency. This specific item boasts high dimensional repeatability and industrial build quality, making it an excellent solution for professional engineers and designers. As a magnetic rod with impressive force (approx. 0.51 kg), this product is available off-the-shelf from our European logistics center, ensuring quick order fulfillment. Moreover, its triple-layer Ni-Cu-Ni coating effectively protects it against corrosion in typical operating conditions, ensuring 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 pull force of 4.96 N with a weight of only 0.38 g, this rod is indispensable in electronics and wherever every gram matters.

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, anaerobic resins 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 industrial neodymium magnets, offering a great economic balance and high resistance to demagnetization. If you need even stronger magnets in the same volume (Ø4x4), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard in continuous sale in our store.

This model is characterized by dimensions Ø4x4 mm, which, at a weight of 0.38 g, makes it an element with high magnetic energy density. The value of 4.96 N means that the magnet is capable of holding a weight many times exceeding its own mass of 0.38 g. The product has a [NiCuNi] coating, which secures it against external factors, 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. 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 as well as disadvantages of Nd₂Fe₁₄B magnets.

Strengths

Besides their magnetic performance, neodymium magnets are valued for these benefits:

They virtually do not lose strength, because even after ten years the performance loss is only ~1% (in laboratory conditions),
Magnets very well resist against loss of magnetization caused by foreign field sources,
By applying a smooth layer of gold, the element presents an elegant look,
Magnets possess very high magnetic induction on the surface,
Through (appropriate) combination of ingredients, they can achieve high thermal strength, allowing for operation at temperatures reaching 230°C and above...
In view of the possibility of free molding and adaptation to individualized requirements, NdFeB magnets can be manufactured in a variety of geometric configurations, which makes them more universal,
Fundamental importance in modern industrial fields – they are utilized in HDD drives, electromotive mechanisms, advanced medical instruments, as well as complex engineering applications.
Compactness – despite small sizes they provide effective action, making them ideal for precision applications

Disadvantages

Disadvantages of neodymium magnets:

To avoid cracks under impact, we recommend using special steel holders. Such a solution secures the magnet and simultaneously improves its durability.
When exposed to high temperature, neodymium magnets suffer a drop in power. Often, when the temperature exceeds 80°C, their power decreases (depending on the size, as well as shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 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 immune to moisture, when using outdoors
Limited ability of producing nuts in the magnet and complicated forms - preferred is casing - mounting mechanism.
Possible danger related to microscopic parts of magnets are risky, when accidentally swallowed, which gains importance in the context of child health protection. Additionally, tiny parts of these devices can complicate diagnosis medical when they are in the body.
High unit price – neodymium magnets are more expensive than other types of magnets (e.g. ferrite), which can limit application in large quantities

Holding force characteristics

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

The load parameter shown represents the peak performance, obtained under ideal test conditions, namely:

using a sheet made of low-carbon steel, functioning as a circuit closing element
whose thickness reaches at least 10 mm
with an ideally smooth contact surface
under conditions of gap-free contact (surface-to-surface)
during pulling in a direction vertical to the plane
in neutral thermal conditions

Determinants of lifting force in real conditions

It is worth knowing that the working load may be lower influenced by elements below, starting with the most relevant:

Distance (betwixt the magnet and the metal), as even a very small distance (e.g. 0.5 mm) results in a drastic drop in lifting capacity by up to 50% (this also applies to varnish, rust or debris).
Angle of force application – maximum parameter is obtained only during pulling at a 90° angle. The resistance to sliding of the magnet along the plate is typically 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).
Chemical composition of the base – low-carbon steel attracts best. Alloy steels decrease magnetic permeability and lifting capacity.
Plate texture – ground elements ensure maximum contact, which improves force. Uneven metal weaken the grip.
Thermal environment – temperature increase results in weakening of force. Check the maximum operating temperature for a given model.

Holding force was measured on a smooth steel plate of 20 mm thickness, when the force acted perpendicularly, in contrast under shearing force the load capacity is reduced by as much as 5 times. Additionally, even a minimal clearance between the magnet and the plate decreases the load capacity.

Precautions when working with NdFeB magnets

Pacemakers

People with a heart stimulator should maintain an absolute distance from magnets. The magnetism can interfere with the functioning of the life-saving device.

Risk of cracking

Neodymium magnets are ceramic materials, meaning they are fragile like glass. Clashing of two magnets leads to them cracking into small pieces.

Compass and GPS

An intense magnetic field negatively affects the operation of magnetometers in smartphones and navigation systems. Maintain magnets near a device to avoid breaking the sensors.

Conscious usage

Handle magnets with awareness. Their powerful strength can shock even professionals. Plan your moves and do not underestimate their force.

Heat warning

Regular neodymium magnets (N-type) lose power when the temperature goes above 80°C. Damage is permanent.

Data carriers

Powerful magnetic fields can erase data on credit cards, HDDs, and storage devices. Keep a distance of at least 10 cm.

Sensitization to coating

Nickel alert: The nickel-copper-nickel coating contains nickel. If skin irritation appears, cease handling magnets and wear gloves.

Finger safety

Big blocks can crush fingers in a fraction of a second. Do not put your hand betwixt two attracting surfaces.

Do not give to children

Neodymium magnets are not suitable for play. Eating several magnets can lead to them connecting inside the digestive tract, which poses a direct threat to life and necessitates immediate surgery.

Dust is flammable

Dust created during machining of magnets is flammable. Avoid drilling into magnets without proper cooling and knowledge.

Caution! Need more info? Check our post: Are neodymium magnets dangerous?

MW 4x4 / N38 - cylindrical magnet

Detailed specification - MW 4x4 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical simulation of the product - technical parameters

Table 1: Static force (pull vs distance) - characteristics MW 4x4 / N38

Table 2: Slippage capacity (wall) MW 4x4 / N38

Table 3: Vertical assembly (shearing) - vertical pull MW 4x4 / N38

Table 4: Steel thickness (saturation) - sheet metal selection MW 4x4 / N38

Table 5: Thermal stability (material behavior) - power drop MW 4x4 / N38

Table 6: Magnet-Magnet interaction (attraction) - field range MW 4x4 / N38

Table 7: Protective zones (electronics) - warnings MW 4x4 / N38

Table 8: Impact energy (kinetic energy) - warning MW 4x4 / N38

Table 9: Surface protection spec MW 4x4 / N38

Table 10: Electrical data (Pc) MW 4x4 / N38

Table 11: Physics of underwater searching MW 4x4 / N38

1. Vertical hold

2. Plate thickness effect

3. Temperature resistance

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

Chemical composition

Environmental data

Force (pull)

Magnetic Field

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MPL 50x50x25 / N38 - lamellar magnet

Advantages as well as disadvantages of Nd2Fe14B magnets.

Strengths

Disadvantages

Holding force characteristics

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

Determinants of lifting force in real conditions

Precautions when working with NdFeB magnets

Pacemakers

Risk of cracking

Compass and GPS

Conscious usage

Heat warning

Data carriers

Sensitization to coating

Finger safety

Do not give to children

Dust is flammable

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (pull vs distance) - characteristics
MW 4x4 / N38

Table 2: Slippage capacity (wall)
MW 4x4 / N38

Table 3: Vertical assembly (shearing) - vertical pull
MW 4x4 / N38

Table 4: Steel thickness (saturation) - sheet metal selection
MW 4x4 / N38

Table 5: Thermal stability (material behavior) - power drop
MW 4x4 / N38

Table 6: Magnet-Magnet interaction (attraction) - field range
MW 4x4 / N38

Table 7: Protective zones (electronics) - warnings
MW 4x4 / N38

Table 8: Impact energy (kinetic energy) - warning
MW 4x4 / N38

Table 9: Surface protection spec
MW 4x4 / N38

Table 10: Electrical data (P_c)
MW 4x4 / N38

Table 11: Physics of underwater searching
MW 4x4 / N38

Advantages as well as disadvantages of Nd₂Fe₁₄B magnets.