Product available Ships tomorrow

MW 5x30 / 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 010088

GTIN/EAN: 5906301810872

5.00

Diameter Ø

5 mm [±0,1 mm]

Height

30 mm [±0,1 mm]

Weight

4.42 g

Magnetization Direction

↑ axial

Load capacity

0.45 kg / 4.40 N

Magnetic Induction

616.32 mT / 6163 Gs

Coating

[NiCuNi] Nickel

view parameters »

3.57 ZŁ with VAT / pcs + price for transport

2.90 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?

price from 1 pcs

2.90 ZŁ

3.57 ZŁ

price from 250 pcs

2.73 ZŁ

3.35 ZŁ

price from 900 pcs

2.55 ZŁ

3.14 ZŁ

Carbon Footprint – environmental impact GPSR Regulation – product safety

Not sure about your choice?

Contact us by phone +48 888 99 98 98 if you prefer drop us a message via request form the contact page.
Strength along with appearance of a neodymium magnet can be checked with our magnetic calculator.

Same-day processing for orders placed before 14:00.

Technical of the product - MW 5x30 / N38 - cylindrical magnet

Specification / characteristics - MW 5x30 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010088
GTIN/EAN	5906301810872
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	30 mm [±0,1 mm]
Weight	4.42 g
Magnetization Direction	↑ axial
Load capacity ~ ?	0.45 kg / 4.40 N
Magnetic Induction ~ ?	616.32 mT / 6163 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 5x30 / 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 information constitute the direct effect of a mathematical simulation. Values rely on models for the class Nd₂Fe₁₄B. Real-world performance may deviate from the simulation results. Please consider these calculations as a supplementary guide for designers.

Table 1: Static force (force vs distance) - interaction chart
MW 5x30 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	6154 Gs 615.4 mT	0.45 kg / 0.99 LBS 450.0 g / 4.4 N	weak grip
1 mm	3877 Gs 387.7 mT	0.18 kg / 0.39 LBS 178.6 g / 1.8 N	weak grip
2 mm	2308 Gs 230.8 mT	0.06 kg / 0.14 LBS 63.3 g / 0.6 N	weak grip
3 mm	1419 Gs 141.9 mT	0.02 kg / 0.05 LBS 23.9 g / 0.2 N	weak grip
5 mm	639 Gs 63.9 mT	0.00 kg / 0.01 LBS 4.8 g / 0.0 N	weak grip
10 mm	173 Gs 17.3 mT	0.00 kg / 0.00 LBS 0.4 g / 0.0 N	weak grip
15 mm	75 Gs 7.5 mT	0.00 kg / 0.00 LBS 0.1 g / 0.0 N	weak grip
20 mm	40 Gs 4.0 mT	0.00 kg / 0.00 LBS 0.0 g / 0.0 N	weak grip
30 mm	16 Gs 1.6 mT	0.00 kg / 0.00 LBS 0.0 g / 0.0 N	weak grip
50 mm	5 Gs 0.5 mT	0.00 kg / 0.00 LBS 0.0 g / 0.0 N	weak grip

Magnetic force drops drastically per each millimeter of distance. Keep in mind that even the smallest gap (e.g., dirt, varnish, rust) noticeably diminishes the holding power. Magnetic products operate most effectively at the point of direct contact; distance nullifies the force. Observe how rapidly the load capacity drop, when the product does not touch tightly to the metal substrate. When calculating the assembly, avoid additional spacers.

Table 2: Sliding force (vertical surface)
MW 5x30 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	0.09 kg / 0.20 LBS 90.0 g / 0.9 N
1 mm	Stal (~0.2)	0.04 kg / 0.08 LBS 36.0 g / 0.4 N
2 mm	Stal (~0.2)	0.01 kg / 0.03 LBS 12.0 g / 0.1 N
3 mm	Stal (~0.2)	0.00 kg / 0.01 LBS 4.0 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 defines the theoretical shear load sufficient to initiate the shifting of the magnet vertically along a vertical metal surface (considering typical friction). This parameter varies with the gap size between the magnet and the metal.

Table 3: Wall mounting (sliding) - vertical pull
MW 5x30 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	0.14 kg / 0.30 LBS 135.0 g / 1.3 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.09 kg / 0.20 LBS 90.0 g / 0.9 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.05 kg / 0.10 LBS 45.0 g / 0.4 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	0.23 kg / 0.50 LBS 225.0 g / 2.2 N

When hanging a magnet on a vertical wall (e.g., a board), it will maintain only about 1/5 of nominal attraction strength. Gravitational force and a low friction coefficient mean that products slide down easier than they pop off the substrate. Planning a hanger? Consider that the shear force is significantly lower than the perpendicular breakaway force. On a slippery surface, the element will slip down under a significantly smaller weight. Application of an anti-slip layer can significantly raise the stability.

Table 4: Steel thickness (substrate influence) - power losses
MW 5x30 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.05 kg / 0.10 LBS 45.0 g / 0.4 N
1 mm	25%	0.11 kg / 0.25 LBS 112.5 g / 1.1 N
2 mm	50%	0.23 kg / 0.50 LBS 225.0 g / 2.2 N
3 mm	75%	0.34 kg / 0.74 LBS 337.5 g / 3.3 N
5 mm	100%	0.45 kg / 0.99 LBS 450.0 g / 4.4 N
10 mm	100%	0.45 kg / 0.99 LBS 450.0 g / 4.4 N
11 mm	100%	0.45 kg / 0.99 LBS 450.0 g / 4.4 N
12 mm	100%	0.45 kg / 0.99 LBS 450.0 g / 4.4 N

A thin sheet is not enough to absorb the entire magnetic field, which wastes potential of the magnet. If you mount a strong magnet to a weak sheet, the field will penetrate right through and the pull force will drop sharply. To utilize 100% of this magnet's power, you require a sufficiently solid backing of metal. The saturation phenomenon causes that on sheet metal structures (e.g., thin profiles), the product works worse. We advise picking the steel thickness from these parameters.

Table 5: Thermal stability (material behavior) - power drop
MW 5x30 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	0.45 kg / 0.99 LBS 450.0 g / 4.4 N	OK
40 °C	-2.2%	0.44 kg / 0.97 LBS 440.1 g / 4.3 N	OK
60 °C	-4.4%	0.43 kg / 0.95 LBS 430.2 g / 4.2 N	OK
80 °C	-6.6%	0.42 kg / 0.93 LBS 420.3 g / 4.1 N
100 °C	-28.8%	0.32 kg / 0.71 LBS 320.4 g / 3.1 N

Classic neodymiums change their properties power past the thermal threshold. Watch out for overheating – heat can permanently damage this product. With every degree above norm, the magnet's force briefly lowers. Avoid using this magnet close to ovens exceeding its working range. Too high temperature will result in permanent loss of magnetism.

*Technical advisory: Heat tolerance depends not only on the material grade, and the Permeance Coefficient Pc. Low-profile magnets (low permeance coefficient) may lose charge permanently at lower temperatures than long magnets. The danger warning in the table points to permanent field degradation for this particular item.

Table 6: Magnet-Magnet interaction (repulsion) - field range
MW 5x30 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	4.58 kg / 10.11 LBS 6 170 Gs	0.69 kg / 1.52 LBS 688 g / 6.7 N	N/A
1 mm	2.98 kg / 6.57 LBS 9 927 Gs	0.45 kg / 0.99 LBS 447 g / 4.4 N	2.68 kg / 5.92 LBS ~0 Gs
2 mm	1.82 kg / 4.01 LBS 7 755 Gs	0.27 kg / 0.60 LBS 273 g / 2.7 N	1.64 kg / 3.61 LBS ~0 Gs
3 mm	1.08 kg / 2.39 LBS 5 981 Gs	0.16 kg / 0.36 LBS 162 g / 1.6 N	0.97 kg / 2.15 LBS ~0 Gs
5 mm	0.39 kg / 0.86 LBS 3 595 Gs	0.06 kg / 0.13 LBS 59 g / 0.6 N	0.35 kg / 0.78 LBS ~0 Gs
10 mm	0.05 kg / 0.11 LBS 1 278 Gs	0.01 kg / 0.02 LBS 7 g / 0.1 N	0.04 kg / 0.10 LBS ~0 Gs
20 mm	0.00 kg / 0.01 LBS 346 Gs	0.00 kg / 0.00 LBS 1 g / 0.0 N	0.00 kg / 0.00 LBS ~0 Gs
50 mm	0.00 kg / 0.00 LBS 49 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 32 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 22 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 16 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 12 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 9 Gs	0.00 kg / 0.00 LBS 0 g / 0.0 N	0.00 kg / 0.00 LBS ~0 Gs

Two magnetic products attract each other from a much further distance than a magnet and sheet setup. The connection of magnet-to-magnet produces a massive flux and a further horizon of operation. Designing a solid fastener? Apply two magnets instead of a neodymium and a steel. Remember that when connecting a pair of magnets, the collision energy is massive. The levitation is marginally weaker than the attraction, but still large.
*The magnetic induction for N-N configuration reaches ~0 Gs at the geometric center of the gap (caused by magnetic field nullification).
Attention: Estimates show friction force of a pair of same neodymium magnets (friction coefficient ~0.15 for Ni-Ni plating).

Table 7: Safety (HSE) (electronics) - warnings
MW 5x30 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	5.0 cm
Hearing aid	10 Gs (1.0 mT)	4.0 cm
Mechanical watch	20 Gs (2.0 mT)	3.0 cm
Phone / Smartphone	40 Gs (4.0 mT)	2.5 cm
Car key	50 Gs (5.0 mT)	2.0 cm
Payment card	400 Gs (40.0 mT)	1.0 cm
HDD hard drive	600 Gs (60.0 mT)	1.0 cm

A strong magnetic field is a serious hazard to electronics as well as medical implants. These NdFeB products produce a flux that destroys function of digital equipment. Remember: the unseen radiation acts through matter and glass. Increased vigilance must be exercised by people with cochlear implants and insulin pumps. Also at risk are: automatic timepieces, remotes, speakers, and displays. Avoid contact with magnetic cards, hard drives, or precise measuring instruments.

Table 8: Impact energy (kinetic energy) - collision effects
MW 5x30 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	10.18 km/h (2.83 m/s)	0.02 J
30 mm	17.63 km/h (4.90 m/s)	0.05 J
50 mm	22.75 km/h (6.32 m/s)	0.09 J
100 mm	32.18 km/h (8.94 m/s)	0.18 J

NdFeB products are very brittle – a collision with steel causes immediate chipping. Control the attraction moment – a magnet released freely becomes dangerous. Striking energy can trigger coating fragments or dangerous crushing to skin. Hold the magnet firmly during installation so it doesn't hit violently against the metal. A collision at high speed ends with a crack of the neodymium. Use safety goggles when working with powerful specimens.

Table 9: Coating parameters (durability)
MW 5x30 / 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. Note the thickness of the protective layer.

Table 10: Electrical data (Flux)
MW 5x30 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	1 468 Mx	14.7 µWb
P_c Coefficient	1.59	High (Stable)

Flux value emitted by the pole surface. Key data when building generators and motors. The P_c coefficient defines the magnet's operating point.

Table 11: Underwater work (magnet fishing)
MW 5x30 / N38

Environment	Effective steel pull	Effect
Air (land)	0.45 kg	Standard
Water (riverbed)	0.52 kg (+0.07 kg buoyancy gain)	+14.5%

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

The magnetic field penetrates through water without any losses. Buoyancy helps in lifting finds.

1. Shear force

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

2. Efficiency vs thickness

*Thin metal sheet (e.g. 0.5mm PC case) severely reduces the holding force.

3. Thermal stability

*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) = 1.59

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.

Technical specification and ecology

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%

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: 010088-2026

Measurement Calculator

Force (pull)

Kilograms (kg)

Force (N)

Pounds (lbs)

Magnetic Induction

Gauss (Gs)

Simply populate a single box, to let the converter calculate the rest for you.

Other deals

Product available Ships tomorrow

MW 12x8 / N38 - cylindrical magnet

2.47 ZŁ brutto / pcs

Product available Ships tomorrow

SM 25x200 [2xM8] / N42 - magnetic separator

541.20 ZŁ brutto / pcs

Product available Ships tomorrow

BM 850x180x70 [4x M8] - magnetic beam

7729.93 ZŁ brutto / pcs

Product available Ships tomorrow

MPL 25x25x10 / N38 - lamellar magnet

20.29 ZŁ brutto / pcs

The offered product is an exceptionally strong cylindrical magnet, produced from advanced NdFeB material, which, with dimensions of Ø5x30 mm, guarantees optimal power. This specific item boasts high dimensional repeatability and professional build quality, making it an excellent solution for the most demanding engineers and designers. As a magnetic rod with significant force (approx. 0.45 kg), this product is in stock from our warehouse in Poland, ensuring rapid order fulfillment. Moreover, its triple-layer Ni-Cu-Ni coating secures it against corrosion in standard operating conditions, guaranteeing an aesthetic appearance and durability for years.

This model is created for building electric motors, advanced sensors, and efficient magnetic separators, where field concentration on a small surface counts. Thanks to the pull force of 4.40 N with a weight of only 4.42 g, this rod is indispensable in miniature devices and wherever every gram matters.

Due to the delicate structure of the ceramic sinter, we absolutely advise against force-fitting (so-called press-fit), as this risks immediate cracking of this precision component. To ensure long-term durability in automation, specialized industrial adhesives 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 (Ø5x30), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard available off-the-shelf in our store.

The presented product is a neodymium magnet with precisely defined parameters: diameter 5 mm and height 30 mm. The key parameter here is the holding force amounting to approximately 0.45 kg (force ~4.40 N), which, with such compact dimensions, proves the high power of the NdFeB material. The product has a [NiCuNi] coating, which protects the surface against external factors, giving it an aesthetic, silvery shine.

This cylinder is magnetized axially (along the height of 30 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 and weaknesses of rare earth magnets.

Pros

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

Their strength remains stable, and after around ten years it drops only by ~1% (according to research),
Magnets very well defend themselves against loss of magnetization caused by ambient magnetic noise,
In other words, due to the glossy finish of nickel, the element becomes visually attractive,
Magnetic induction on the top side of the magnet is maximum,
Due to their durability and thermal resistance, neodymium magnets are capable of operate (depending on the form) even at high temperatures reaching 230°C or more...
Possibility of accurate creating as well as adjusting to individual needs,
Universal use in future technologies – they serve a role in computer drives, drive modules, advanced medical instruments, also other advanced devices.
Compactness – despite small sizes they generate large force, making them ideal for precision applications

Disadvantages

Cons of neodymium magnets: weaknesses and usage proposals

They are prone to damage upon too strong impacts. To avoid cracks, it is worth protecting magnets in special housings. Such protection not only shields the magnet but also increases its resistance to damage
When exposed to high temperature, neodymium magnets experience a drop in strength. Often, when the temperature exceeds 80°C, their power decreases (depending on the size and shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
They rust in a humid environment. For use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
Limited ability of making threads in the magnet and complicated forms - preferred is cover - magnet mounting.
Possible danger to health – tiny shards of magnets pose a threat, when accidentally swallowed, which gains importance in the aspect of protecting the youngest. Additionally, small components of these products can complicate diagnosis medical after entering the body.
With budget limitations the cost of neodymium magnets can be a barrier,

Pull force analysis

Magnetic strength at its maximum – what it depends on?

Magnet power is the result of a measurement for the most favorable conditions, taking into account:

with the contact of a sheet made of special test steel, guaranteeing full magnetic saturation
possessing a massiveness of at least 10 mm to ensure full flux closure
with an ground touching surface
without any air gap between the magnet and steel
for force acting at a right angle (pull-off, not shear)
at ambient temperature approx. 20 degrees Celsius

Practical lifting capacity: influencing factors

It is worth knowing that the application force may be lower influenced by the following factors, in order of importance:

Gap (betwixt the magnet and the metal), as even a microscopic clearance (e.g. 0.5 mm) leads to a reduction in lifting capacity by up to 50% (this also applies to varnish, rust or dirt).
Pull-off angle – remember that the magnet holds strongest perpendicularly. Under shear forces, the capacity drops drastically, often to levels of 20-30% of the maximum value.
Wall thickness – thin material does not allow full use of the magnet. Magnetic flux passes through the material instead of generating force.
Metal type – different alloys reacts the same. High carbon content worsen the attraction effect.
Surface finish – ideal contact is possible only on smooth steel. Any scratches and bumps create air cushions, reducing force.
Temperature – heating the magnet causes a temporary drop of force. Check the maximum operating temperature for a given model.

Holding force was tested on a smooth steel plate of 20 mm thickness, when a perpendicular force was applied, in contrast under shearing force the holding force is lower. Additionally, even a slight gap between the magnet’s surface and the plate lowers the holding force.

Warnings

Metal Allergy

It is widely known that nickel (standard magnet coating) is a potent allergen. If your skin reacts to metals, prevent touching magnets with bare hands or select coated magnets.

Physical harm

Danger of trauma: The attraction force is so great that it can result in blood blisters, crushing, and even bone fractures. Protective gloves are recommended.

Adults only

These products are not toys. Swallowing multiple magnets may result in them connecting inside the digestive tract, which constitutes a direct threat to life and requires immediate surgery.

Threat to electronics

Avoid bringing magnets near a purse, computer, or screen. The magnetism can irreversibly ruin these devices and wipe information from cards.

Warning for heart patients

People with a pacemaker have to keep an absolute distance from magnets. The magnetic field can stop the operation of the life-saving device.

Caution required

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

Eye protection

NdFeB magnets are ceramic materials, meaning they are fragile like glass. Clashing of two magnets will cause them cracking into small pieces.

Do not overheat magnets

Monitor thermal conditions. Heating the magnet to high heat will permanently weaken its properties and strength.

GPS Danger

Be aware: rare earth magnets produce a field that confuses sensitive sensors. Maintain a separation from your mobile, tablet, and navigation systems.

Combustion hazard

Mechanical processing of neodymium magnets poses a fire risk. Magnetic powder oxidizes rapidly with oxygen and is difficult to extinguish.

Caution! Learn more about risks in the article: Magnet Safety Guide.

MW 5x30 / N38 - cylindrical magnet

Technical of the product - MW 5x30 / 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 5x30 / N38

Table 2: Sliding force (vertical surface) MW 5x30 / N38

Table 3: Wall mounting (sliding) - vertical pull MW 5x30 / N38

Table 4: Steel thickness (substrate influence) - power losses MW 5x30 / N38

Table 5: Thermal stability (material behavior) - power drop MW 5x30 / N38

Table 6: Magnet-Magnet interaction (repulsion) - field range MW 5x30 / N38

Table 7: Safety (HSE) (electronics) - warnings MW 5x30 / N38

Table 8: Impact energy (kinetic energy) - collision effects MW 5x30 / N38

Table 9: Coating parameters (durability) MW 5x30 / N38

Table 10: Electrical data (Flux) MW 5x30 / N38

Table 11: Underwater work (magnet fishing) MW 5x30 / N38

1. Shear force

2. Efficiency vs thickness

3. Thermal stability

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

Material specification

Sustainability

Force (pull)

Magnetic Induction

Other deals

MW 12x8 / N38 - cylindrical magnet

SM 25x200 [2xM8] / N42 - magnetic separator

BM 850x180x70 [4x M8] - magnetic beam

MPL 25x25x10 / N38 - lamellar magnet

Strengths and weaknesses of rare earth magnets.

Pros

Disadvantages

Pull force analysis

Magnetic strength at its maximum – what it depends on?

Practical lifting capacity: influencing factors

Warnings

Metal Allergy

Physical harm

Adults only

Threat to electronics

Warning for heart patients

Caution required

Eye protection

Do not overheat magnets

GPS Danger

Combustion hazard

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (force vs distance) - interaction chart
MW 5x30 / N38

Table 2: Sliding force (vertical surface)
MW 5x30 / N38

Table 3: Wall mounting (sliding) - vertical pull
MW 5x30 / N38

Table 4: Steel thickness (substrate influence) - power losses
MW 5x30 / N38

Table 5: Thermal stability (material behavior) - power drop
MW 5x30 / N38

Table 6: Magnet-Magnet interaction (repulsion) - field range
MW 5x30 / N38

Table 7: Safety (HSE) (electronics) - warnings
MW 5x30 / N38

Table 8: Impact energy (kinetic energy) - collision effects
MW 5x30 / N38

Table 9: Coating parameters (durability)
MW 5x30 / N38

Table 10: Electrical data (Flux)
MW 5x30 / N38

Table 11: Underwater work (magnet fishing)
MW 5x30 / N38