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MW 2x4 / 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 010055

GTIN/EAN: 5906301810544

5.00

Diameter Ø

2 mm [±0,1 mm]

Height

4 mm [±0,1 mm]

Weight

0.09 g

Magnetization Direction

↑ axial

Load capacity

0.09 kg / 0.86 N

Magnetic Induction

597.70 mT / 5977 Gs

Coating

[NiCuNi] Nickel

see properties »

0.209 ZŁ with VAT / pcs + price for transport

0.1700 ZŁ net + 23% VAT / pcs

bulk discounts:

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Product card - MW 2x4 / N38 - cylindrical magnet

Specification / characteristics - MW 2x4 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010055
GTIN/EAN	5906301810544
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	2 mm [±0,1 mm]
Height	4 mm [±0,1 mm]
Weight	0.09 g
Magnetization Direction	↑ axial
Load capacity ~ ?	0.09 kg / 0.86 N
Magnetic Induction ~ ?	597.70 mT / 5977 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 2x4 / N38 - cylindrical magnet

properties	values	units
remenance Br [min. - max.] ?	12.2-12.6	kGs
remenance Br [min. - max.] ?	1220-1260	mT
coercivity bHc ?	10.8-11.5	kOe
coercivity bHc ?	860-915	kA/m
actual internal force iHc	≥ 12	kOe
actual internal force iHc	≥ 955	kA/m
energy density [min. - max.] ?	36-38	BH max MGOe
energy density [min. - max.] ?	287-303	BH max KJ/m
max. temperature ?	≤ 80	°C

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

properties	values	units
Vickers hardness	≥550	Hv
Density	≥7.4	g/cm³
Curie Temperature TC	312 - 380	°C
Curie Temperature TF	593 - 716	°F
Specific resistance	150	μΩ⋅cm
Bending strength	250	MPa
Compressive strength	1000~1100	MPa
Thermal expansion parallel (∥) to orientation (M)	(3-4) x 10^-6	°C^-1
Thermal expansion perpendicular (⊥) to orientation (M)	-(1-3) x 10^-6	°C^-1
Young's modulus	1.7 x 10⁴	kg/mm²

Engineering simulation of the magnet - data

Presented data are the direct effect of a engineering simulation. Values were calculated on models for the material Nd₂Fe₁₄B. Real-world parameters may deviate from the simulation results. Use these calculations as a supplementary guide when designing systems.

Table 1: Static pull force (force vs distance) - characteristics
MW 2x4 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	5954 Gs 595.4 mT	0.09 kg / 0.20 LBS 90.0 g / 0.9 N	weak grip
1 mm	1696 Gs 169.6 mT	0.01 kg / 0.02 LBS 7.3 g / 0.1 N	weak grip
2 mm	570 Gs 57.0 mT	0.00 kg / 0.00 LBS 0.8 g / 0.0 N	weak grip
3 mm	256 Gs 25.6 mT	0.00 kg / 0.00 LBS 0.2 g / 0.0 N	weak grip
5 mm	82 Gs 8.2 mT	0.00 kg / 0.00 LBS 0.0 g / 0.0 N	weak grip
10 mm	15 Gs 1.5 mT	0.00 kg / 0.00 LBS 0.0 g / 0.0 N	weak grip
15 mm	5 Gs 0.5 mT	0.00 kg / 0.00 LBS 0.0 g / 0.0 N	weak grip
20 mm	2 Gs 0.2 mT	0.00 kg / 0.00 LBS 0.0 g / 0.0 N	weak grip
30 mm	1 Gs 0.1 mT	0.00 kg / 0.00 LBS 0.0 g / 0.0 N	weak grip
50 mm	0 Gs 0.0 mT	0.00 kg / 0.00 LBS 0.0 g / 0.0 N	weak grip

Pulling power decreases drastically with every subsequent millimeter of spacing. Remember that even a very thin break (e.g., dirt, varnish, dust) strongly diminishes the holding power. Neodymiums work strongest during direct contact; distance drastically cuts the force. See how rapidly the load capacity fall, when the product does not touch directly to the steel surface. When designing the arrangement, avoid unnecessary gaps.

Table 2: Vertical capacity (wall)
MW 2x4 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	0.02 kg / 0.04 LBS 18.0 g / 0.2 N
1 mm	Stal (~0.2)	0.00 kg / 0.00 LBS 2.0 g / 0.0 N
2 mm	Stal (~0.2)	0.00 kg / 0.00 LBS 0.0 g / 0.0 N
3 mm	Stal (~0.2)	0.00 kg / 0.00 LBS 0.0 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

This section indicates the estimated holding capacity necessary to start the shifting of the magnet down on a vertical steel wall (assuming typical friction coefficient). This value depends on the gap size between the magnet and the metal.

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces
MW 2x4 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	0.03 kg / 0.06 LBS 27.0 g / 0.3 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.02 kg / 0.04 LBS 18.0 g / 0.2 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.01 kg / 0.02 LBS 9.0 g / 0.1 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	0.05 kg / 0.10 LBS 45.0 g / 0.4 N

When hanging a magnet on a upright surface (e.g., a fridge), it will only hold just approx. 1/5 of its maximum pull force. Gravitational force as well as a low friction coefficient influence the fact that magnets slide down faster than they detach. Designing a wall mount? Consider that the sliding force is noticeably lower than the maximum static pull force. On a slippery surface, the magnet will slide down under a noticeably lighter weight. Application of an anti-slip layer can drastically increase the grip.

Table 4: Material efficiency (saturation) - power losses
MW 2x4 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.01 kg / 0.02 LBS 9.0 g / 0.1 N
1 mm	25%	0.02 kg / 0.05 LBS 22.5 g / 0.2 N
2 mm	50%	0.05 kg / 0.10 LBS 45.0 g / 0.4 N
3 mm	75%	0.07 kg / 0.15 LBS 67.5 g / 0.7 N
5 mm	100%	0.09 kg / 0.20 LBS 90.0 g / 0.9 N
10 mm	100%	0.09 kg / 0.20 LBS 90.0 g / 0.9 N
11 mm	100%	0.09 kg / 0.20 LBS 90.0 g / 0.9 N
12 mm	100%	0.09 kg / 0.20 LBS 90.0 g / 0.9 N

A thin sheet is unable to take in the full magnetic flux, which squanders power of the magnet. If you attach a powerful product to a too thin substrate, the flux will pass right through and the attraction force will be weaker. To squeeze full efficiency of this neodymium's power, you require a sufficiently solid element of metal. The saturation effect causes that on sheet metal structures (e.g., car bodies), the holder works worse. We suggest choosing the steel thickness according to the table below.

Table 5: Thermal resistance (material behavior) - resistance threshold
MW 2x4 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	0.09 kg / 0.20 LBS 90.0 g / 0.9 N	OK
40 °C	-2.2%	0.09 kg / 0.19 LBS 88.0 g / 0.9 N	OK
60 °C	-4.4%	0.09 kg / 0.19 LBS 86.0 g / 0.8 N	OK
80 °C	-6.6%	0.08 kg / 0.19 LBS 84.1 g / 0.8 N
100 °C	-28.8%	0.06 kg / 0.14 LBS 64.1 g / 0.6 N

Ordinary NdFeB products change their properties power above the temperature limit. Watch out for overheating – high temperature can permanently destroy this magnet. As the temperature rises, the magnet's force momentarily lowers. Refrain from using this magnet near heat sources higher than its operating temperature limit. Ignoring the limit will result in permanent loss of magnetism.

*Engineering note: Heat tolerance depends not only on the material grade, but also on the magnet's shape. Low-profile magnets (low permeance coefficient) may lose charge permanently at lower temperatures compared to rod magnets. Red status in the table points to permanent field degradation for this particular item.

Table 6: Magnet-Magnet interaction (attraction) - forces in the system
MW 2x4 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Sliding Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	0.69 kg / 1.51 LBS 6 090 Gs	0.10 kg / 0.23 LBS 103 g / 1.0 N	N/A
1 mm	0.21 kg / 0.46 LBS 6 559 Gs	0.03 kg / 0.07 LBS 31 g / 0.3 N	0.19 kg / 0.41 LBS ~0 Gs
2 mm	0.06 kg / 0.12 LBS 3 391 Gs	0.01 kg / 0.02 LBS 8 g / 0.1 N	0.05 kg / 0.11 LBS ~0 Gs
3 mm	0.02 kg / 0.04 LBS 1 883 Gs	0.00 kg / 0.01 LBS 3 g / 0.0 N	0.02 kg / 0.03 LBS ~0 Gs
5 mm	0.00 kg / 0.01 LBS 743 Gs	0.00 kg / 0.00 LBS 0 g / 0.0 N	0.00 kg / 0.00 LBS ~0 Gs
10 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
20 mm	0.00 kg / 0.00 LBS 30 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 3 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 2 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 1 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 1 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 0 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 0 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 much further distance than a neodymium and metal setup. Such a system of magnet-to-magnet produces a massive flux and a wider radius of performance. Want to build a powerful holder? Use a pair of magnets instead of one magnet and a steel. Exercise caution that when connecting a pair of magnets, the impact force is massive. The levitation is a bit weaker than the connection force, but still significant.
*Flux density between like poles reaches ~0 Gs at the geometric center between the magnets (caused by magnetic field nullification).
* Calculations apply to friction force of two same magnets (friction ~0.15 for Ni-Ni plating).

Table 7: Safety (HSE) (electronics) - precautionary measures
MW 2x4 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	2.0 cm
Hearing aid	10 Gs (1.0 mT)	1.5 cm
Timepiece	20 Gs (2.0 mT)	1.0 cm
Phone / Smartphone	40 Gs (4.0 mT)	1.0 cm
Car key	50 Gs (5.0 mT)	1.0 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 serious hazard to electronic devices and pacemakers. These NdFeB products generate a flux that prevents correct functioning of digital equipment. Remember: the invisible magnetic field penetrates the body and glass. Special caution must be taken by people with cochlear implants and drug dispensers. Also at risk are: mechanical watches, car keys, speakers, and screens. Do not bring the product near payment cards, hard drives, or sensitive navigation tools.

Table 8: Collisions (kinetic energy) - warning
MW 2x4 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	31.89 km/h (8.86 m/s)	0.00 J
30 mm	55.24 km/h (15.34 m/s)	0.01 J
50 mm	71.31 km/h (19.81 m/s)	0.02 J
100 mm	100.85 km/h (28.01 m/s)	0.04 J

Magnetic elements are delicate – a collision with steel causes immediate chipping. Watch the impact speed – a neodymium left loose becomes dangerous. Striking energy can trigger coating fragments or painful pinches to skin. Always hold the magnet during bringing near metal so it doesn't hit violently against the metal. A contact at a velocity of dozens of km/h means shattering of the neodymium. Use safety goggles when playing with large magnets.

Table 9: Corrosion resistance
MW 2x4 / 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 SST (salt spray test) is an industry standard for determining coating lifespan in harsh conditions. Improper coating selection is the most common cause of magnet failure over time.

Table 10: Construction data (P_c)
MW 2x4 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	209 Mx	2.1 µWb
P_c Coefficient	1.21	High (Stable)

Total magnetic flux emitted by the magnet pole. Key data in coil applications as well as sensors. P_c value defines the working geometry.

Table 11: Underwater work (magnet fishing)
MW 2x4 / N38

Environment	Effective steel pull	Effect
Air (land)	0.09 kg	Standard
Water (riverbed)	0.10 kg (+0.01 kg buoyancy gain)	+14.5%

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

Water displaces steel, making heavy objects slightly lighter. However, remember the water resistance when pulling the rope quickly.

1. Vertical hold

*Warning: On a vertical wall, the magnet retains only a fraction of its nominal pull.

2. Plate thickness effect

*Thin steel (e.g. 0.5mm PC case) drastically limits 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) = 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%

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: 010055-2026

Magnet Unit Converter

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Newtons (N)

Force in lbs

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SM 32x100 [2xM8] / N52 - magnetic separator

381.30 ZŁ brutto / pcs

This product is an exceptionally strong cylindrical magnet, composed of durable NdFeB material, which, at dimensions of Ø2x4 mm, guarantees optimal power. The MW 2x4 / N38 model features 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. 0.09 kg), this product is available off-the-shelf from our warehouse in Poland, ensuring rapid order fulfillment. Moreover, its Ni-Cu-Ni coating shields it against corrosion in typical operating conditions, guaranteeing an aesthetic appearance and durability for years.

This model is ideal for building generators, advanced Hall effect sensors, and efficient magnetic separators, where maximum induction on a small surface counts. Thanks to the high power of 0.86 N with a weight of only 0.09 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., 2.1 mm) using two-component epoxy glues. To ensure long-term durability in automation, specialized industrial adhesives are used, which are safe for nickel and fill the gap, guaranteeing durability of the connection.

Magnets NdFeB grade N38 are suitable for 90% of applications in modeling and machine building, where extreme miniaturization with maximum force is not required. If you need the strongest magnets in the same volume (Ø2x4), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard in continuous sale in our store.

The presented product is a neodymium magnet with precisely defined parameters: diameter 2 mm and height 4 mm. The key parameter here is the lifting capacity amounting to approximately 0.09 kg (force ~0.86 N), which, with such compact dimensions, proves the high grade of the NdFeB material. The product has a [NiCuNi] coating, which secures it against external factors, giving it an aesthetic, silvery shine.

This cylinder 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 diametrically if your project requires it.

Pros as well as cons of neodymium magnets.

Pros

In addition to their pulling strength, neodymium magnets provide the following advantages:

They do not lose magnetism, even over approximately ten years – the reduction in power is only ~1% (according to tests),
They maintain their magnetic properties even under external field action,
A magnet with a smooth silver surface looks better,
Magnets possess exceptionally strong magnetic induction on the outer side,
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...
Due to the potential of accurate molding and customization to specialized projects, magnetic components can be produced in a variety of geometric configurations, which amplifies use scope,
Huge importance in high-tech industry – they are utilized in computer drives, electric drive systems, medical equipment, and industrial machines.
Thanks to concentrated force, small magnets offer high operating force, occupying minimum space,

Disadvantages

Disadvantages of NdFeB magnets:

Susceptibility to cracking is one of their disadvantages. Upon intense impact they can fracture. We advise keeping them in a special holder, which not only secures them against impacts but also increases their durability
NdFeB magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop of power (a factor is the shape as well as dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are extremely resistant to heat
They rust in a humid environment. For use outdoors we advise using waterproof magnets e.g. in rubber, plastic
Limited possibility of producing nuts in the magnet and complicated forms - recommended is casing - mounting mechanism.
Possible danger related to microscopic parts of magnets are risky, when accidentally swallowed, which is particularly important in the context of child safety. Furthermore, small elements of these products are able to complicate diagnosis medical after entering the body.
Higher cost of purchase is one of the disadvantages compared to ceramic magnets, especially in budget applications

Pull force analysis

Breakaway strength of the magnet in ideal conditions – what contributes to it?

The lifting capacity listed is a result of laboratory testing conducted under specific, ideal conditions:

with the application of a sheet made of special test steel, guaranteeing maximum field concentration
possessing a thickness of minimum 10 mm to ensure full flux closure
with an ground touching surface
with direct contact (no paint)
for force acting at a right angle (pull-off, not shear)
at conditions approx. 20°C

Magnet lifting force in use – key factors

Bear in mind that the magnet holding will differ depending on elements below, in order of importance:

Distance – existence of any layer (paint, tape, gap) interrupts the magnetic circuit, which reduces power steeply (even by 50% at 0.5 mm).
Loading method – declared lifting capacity refers to detachment vertically. When applying parallel force, the magnet exhibits much less (typically approx. 20-30% of maximum force).
Metal thickness – thin material does not allow full use of the magnet. Part of the magnetic field penetrates through instead of generating force.
Material type – the best choice is pure iron steel. Stainless steels may have worse magnetic properties.
Surface finish – ideal contact is possible only on smooth steel. Rough texture reduce the real contact area, weakening the magnet.
Operating temperature – NdFeB sinters have a sensitivity to temperature. When it is hot they lose power, and in frost they can be stronger (up to a certain limit).

Lifting capacity was measured by applying a smooth steel plate of optimal thickness (min. 20 mm), under perpendicular detachment force, whereas under shearing force the load capacity is reduced by as much as fivefold. In addition, even a minimal clearance between the magnet’s surface and the plate lowers the load capacity.

Warnings

Adults only

Always store magnets away from children. Choking hazard is high, and the consequences of magnets connecting inside the body are life-threatening.

Pacemakers

People with a heart stimulator must keep an large gap from magnets. The magnetism can disrupt the operation of the implant.

Thermal limits

Avoid heat. NdFeB magnets are sensitive to heat. If you require operation above 80°C, ask us about HT versions (H, SH, UH).

Risk of cracking

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

Magnetic media

Do not bring magnets near a wallet, laptop, or screen. The magnetism can destroy these devices and wipe information from cards.

Nickel coating and allergies

Nickel alert: The nickel-copper-nickel coating contains nickel. If redness appears, cease working with magnets and wear gloves.

Phone sensors

Note: rare earth magnets produce a field that disrupts sensitive sensors. Keep a safe distance from your mobile, tablet, and GPS.

Handling rules

Exercise caution. Rare earth magnets act from a distance and snap with massive power, often quicker than you can move away.

Fire risk

Drilling and cutting of NdFeB material carries a risk of fire hazard. Magnetic powder oxidizes rapidly with oxygen and is difficult to extinguish.

Pinching danger

Big blocks can smash fingers instantly. Do not place your hand between two attracting surfaces.

Warning! Looking for details? Read our article: Why are neodymium magnets dangerous?

MW 2x4 / N38 - cylindrical magnet

Product card - MW 2x4 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Engineering simulation of the magnet - data

Table 1: Static pull force (force vs distance) - characteristics MW 2x4 / N38

Table 2: Vertical capacity (wall) MW 2x4 / N38

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces MW 2x4 / N38

Table 4: Material efficiency (saturation) - power losses MW 2x4 / N38

Table 5: Thermal resistance (material behavior) - resistance threshold MW 2x4 / N38

Table 6: Magnet-Magnet interaction (attraction) - forces in the system MW 2x4 / N38

Table 7: Safety (HSE) (electronics) - precautionary measures MW 2x4 / N38

Table 8: Collisions (kinetic energy) - warning MW 2x4 / N38

Table 9: Corrosion resistance MW 2x4 / N38

Table 10: Construction data (Pc) MW 2x4 / N38

Table 11: Underwater work (magnet fishing) MW 2x4 / N38

1. Vertical hold

2. Plate thickness effect

3. Temperature resistance

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

Elemental analysis

Sustainability

Force (pull)

Magnetic Field

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MPL 25x25x10 / N38 - lamellar magnet

MW 4x10 / N38 - cylindrical magnet

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SM 32x100 [2xM8] / N52 - magnetic separator

Pros as well as cons of neodymium magnets.

Pros

Disadvantages

Pull force analysis

Breakaway strength of the magnet in ideal conditions – what contributes to it?

Magnet lifting force in use – key factors

Warnings

Adults only

Pacemakers

Thermal limits

Risk of cracking

Magnetic media

Nickel coating and allergies

Phone sensors

Handling rules

Fire risk

Pinching danger

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (force vs distance) - characteristics
MW 2x4 / N38

Table 2: Vertical capacity (wall)
MW 2x4 / N38

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces
MW 2x4 / N38

Table 4: Material efficiency (saturation) - power losses
MW 2x4 / N38

Table 5: Thermal resistance (material behavior) - resistance threshold
MW 2x4 / N38

Table 6: Magnet-Magnet interaction (attraction) - forces in the system
MW 2x4 / N38

Table 7: Safety (HSE) (electronics) - precautionary measures
MW 2x4 / N38

Table 8: Collisions (kinetic energy) - warning
MW 2x4 / N38

Table 9: Corrosion resistance
MW 2x4 / N38

Table 10: Construction data (P_c)
MW 2x4 / N38

Table 11: Underwater work (magnet fishing)
MW 2x4 / N38