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MW 30x5 / 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 010056

GTIN/EAN: 5906301810551

5.00

Diameter Ø

30 mm [±0,1 mm]

Height

5 mm [±0,1 mm]

Weight

26.51 g

Magnetization Direction

↑ axial

Load capacity

8.71 kg / 85.42 N

Magnetic Induction

196.02 mT / 1960 Gs

Coating

[NiCuNi] Nickel

view technical data »

8.35 ZŁ with VAT / pcs + price for transport

6.79 ZŁ net + 23% VAT / pcs

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Specifications along with shape of a neodymium magnet can be tested with our power calculator.

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Detailed specification - MW 30x5 / N38 - cylindrical magnet

Specification / characteristics - MW 30x5 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010056
GTIN/EAN	5906301810551
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	30 mm [±0,1 mm]
Height	5 mm [±0,1 mm]
Weight	26.51 g
Magnetization Direction	↑ axial
Load capacity ~ ?	8.71 kg / 85.42 N
Magnetic Induction ~ ?	196.02 mT / 1960 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 30x5 / 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 - technical parameters

Presented information represent the result of a engineering simulation. Results rely on algorithms for the class Nd₂Fe₁₄B. Operational conditions may differ from theoretical values. Use these data as a reference point when designing systems.

Table 1: Static force (force vs gap) - power drop
MW 30x5 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	1960 Gs 196.0 mT	8.71 kg / 19.20 LBS 8710.0 g / 85.4 N	medium risk
1 mm	1890 Gs 189.0 mT	8.10 kg / 17.86 LBS 8100.7 g / 79.5 N	medium risk
2 mm	1802 Gs 180.2 mT	7.37 kg / 16.24 LBS 7366.2 g / 72.3 N	medium risk
3 mm	1702 Gs 170.2 mT	6.57 kg / 14.47 LBS 6565.7 g / 64.4 N	medium risk
5 mm	1479 Gs 147.9 mT	4.96 kg / 10.93 LBS 4956.4 g / 48.6 N	medium risk
10 mm	945 Gs 94.5 mT	2.02 kg / 4.46 LBS 2024.4 g / 19.9 N	medium risk
15 mm	576 Gs 57.6 mT	0.75 kg / 1.66 LBS 752.1 g / 7.4 N	safe
20 mm	356 Gs 35.6 mT	0.29 kg / 0.64 LBS 288.1 g / 2.8 N	safe
30 mm	153 Gs 15.3 mT	0.05 kg / 0.12 LBS 53.2 g / 0.5 N	safe
50 mm	43 Gs 4.3 mT	0.00 kg / 0.01 LBS 4.2 g / 0.0 N	safe

Grip strength drops sharply with every mm of spacing. Remember that even a very thin break (e.g., contamination, varnish, rust) noticeably reduces the pull force. Magnets operate optimally during direct contact; gap kills the force. Notice how rapidly the pull force fall, when the product does not adhere tightly to the steel surface. When planning the arrangement, eliminate unnecessary gaps.

Table 2: Slippage load (wall)
MW 30x5 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	1.74 kg / 3.84 LBS 1742.0 g / 17.1 N
1 mm	Stal (~0.2)	1.62 kg / 3.57 LBS 1620.0 g / 15.9 N
2 mm	Stal (~0.2)	1.47 kg / 3.25 LBS 1474.0 g / 14.5 N
3 mm	Stal (~0.2)	1.31 kg / 2.90 LBS 1314.0 g / 12.9 N
5 mm	Stal (~0.2)	0.99 kg / 2.19 LBS 992.0 g / 9.7 N
10 mm	Stal (~0.2)	0.40 kg / 0.89 LBS 404.0 g / 4.0 N
15 mm	Stal (~0.2)	0.15 kg / 0.33 LBS 150.0 g / 1.5 N
20 mm	Stal (~0.2)	0.06 kg / 0.13 LBS 58.0 g / 0.6 N
30 mm	Stal (~0.2)	0.01 kg / 0.02 LBS 10.0 g / 0.1 N
50 mm	Stal (~0.2)	0.00 kg / 0.00 LBS 0.0 g / 0.0 N

The following data indicates the estimated shear load required to cause the slippage of the magnet vertically along a upright steel wall (considering typical friction). The holding force is a function of the distance between the magnet and the metal.

Table 3: Vertical assembly (shearing) - vertical pull
MW 30x5 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	2.61 kg / 5.76 LBS 2613.0 g / 25.6 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	1.74 kg / 3.84 LBS 1742.0 g / 17.1 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.87 kg / 1.92 LBS 871.0 g / 8.5 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	4.36 kg / 9.60 LBS 4355.0 g / 42.7 N

When mounting a holder on a upright plane (e.g., a board), it you can count on just about 1/5 of its nominal power. Gravitational force as well as a low friction coefficient influence the fact that products slip faster than they pop off the substrate. Want to create a hanger? Consider that the sliding force is much weaker than the perpendicular breakaway force. On a slippery surface, the holder will slide down under a significantly smaller cargo. Using a rubber coating can significantly improve the result.

Table 4: Steel thickness (saturation) - sheet metal selection
MW 30x5 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.87 kg / 1.92 LBS 871.0 g / 8.5 N
1 mm	25%	2.18 kg / 4.80 LBS 2177.5 g / 21.4 N
2 mm	50%	4.36 kg / 9.60 LBS 4355.0 g / 42.7 N
3 mm	75%	6.53 kg / 14.40 LBS 6532.5 g / 64.1 N
5 mm	100%	8.71 kg / 19.20 LBS 8710.0 g / 85.4 N
10 mm	100%	8.71 kg / 19.20 LBS 8710.0 g / 85.4 N
11 mm	100%	8.71 kg / 19.20 LBS 8710.0 g / 85.4 N
12 mm	100%	8.71 kg / 19.20 LBS 8710.0 g / 85.4 N

A thin sheet cannot take in the full magnetic flux, which weakens actual performance of the magnet. Should you install a neodymium to a weak sheet, the field will penetrate right through and the holding will be smaller. To achieve 100% of this magnet's potential, you require a sufficiently solid piece of steel. The saturation phenomenon means that on sheet metal structures (e.g., car bodies), the holder works worse. We recommend selecting the steel cross-section from these parameters.

Table 5: Thermal resistance (material behavior) - thermal limit
MW 30x5 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	8.71 kg / 19.20 LBS 8710.0 g / 85.4 N	OK
40 °C	-2.2%	8.52 kg / 18.78 LBS 8518.4 g / 83.6 N	OK
60 °C	-4.4%	8.33 kg / 18.36 LBS 8326.8 g / 81.7 N
80 °C	-6.6%	8.14 kg / 17.93 LBS 8135.1 g / 79.8 N
100 °C	-28.8%	6.20 kg / 13.67 LBS 6201.5 g / 60.8 N

Standard neodymium magnets lose power after exceeding the maximum temperature. Protect against heat – heat can irreversibly damage this magnet. As the temperature rises, the neodymium's capacity momentarily decreases. Do not use this product near heat sources exceeding its operating temperature limit. Ignoring the limit will lead to irreversible degradation of magnetism.

*Engineering note: Heat tolerance depends not only on the material grade, and the Permeance Coefficient Pc. Thin magnets (low permeance coefficient) risk losing magnetic properties at lower temperatures compared to rod magnets. The danger warning in the table indicates a risk of irreversible loss for this specific geometry.

Table 6: Magnet-Magnet interaction (attraction) - field range
MW 30x5 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Lateral Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	16.74 kg / 36.91 LBS 3 437 Gs	2.51 kg / 5.54 LBS 2511 g / 24.6 N	N/A
1 mm	16.20 kg / 35.71 LBS 3 856 Gs	2.43 kg / 5.36 LBS 2429 g / 23.8 N	14.58 kg / 32.14 LBS ~0 Gs
2 mm	15.57 kg / 34.33 LBS 3 780 Gs	2.34 kg / 5.15 LBS 2335 g / 22.9 N	14.01 kg / 30.89 LBS ~0 Gs
3 mm	14.89 kg / 32.82 LBS 3 696 Gs	2.23 kg / 4.92 LBS 2233 g / 21.9 N	13.40 kg / 29.54 LBS ~0 Gs
5 mm	13.40 kg / 29.54 LBS 3 507 Gs	2.01 kg / 4.43 LBS 2010 g / 19.7 N	12.06 kg / 26.58 LBS ~0 Gs
10 mm	9.53 kg / 21.00 LBS 2 957 Gs	1.43 kg / 3.15 LBS 1429 g / 14.0 N	8.57 kg / 18.90 LBS ~0 Gs
20 mm	3.89 kg / 8.58 LBS 1 890 Gs	0.58 kg / 1.29 LBS 584 g / 5.7 N	3.50 kg / 7.72 LBS ~0 Gs
50 mm	0.23 kg / 0.50 LBS 458 Gs	0.03 kg / 0.08 LBS 34 g / 0.3 N	0.21 kg / 0.45 LBS ~0 Gs
60 mm	0.10 kg / 0.23 LBS 307 Gs	0.02 kg / 0.03 LBS 15 g / 0.2 N	0.09 kg / 0.20 LBS ~0 Gs
70 mm	0.05 kg / 0.11 LBS 213 Gs	0.01 kg / 0.02 LBS 7 g / 0.1 N	0.04 kg / 0.10 LBS ~0 Gs
80 mm	0.03 kg / 0.06 LBS 153 Gs	0.00 kg / 0.01 LBS 4 g / 0.0 N	0.02 kg / 0.05 LBS ~0 Gs
90 mm	0.01 kg / 0.03 LBS 113 Gs	0.00 kg / 0.00 LBS 2 g / 0.0 N	0.01 kg / 0.03 LBS ~0 Gs
100 mm	0.01 kg / 0.02 LBS 86 Gs	0.00 kg / 0.00 LBS 1 g / 0.0 N	0.00 kg / 0.00 LBS ~0 Gs

Two strong neodymiums attract each other from a much further distance than a magnet and sheet combination. Such a system of magnet-to-magnet creates a more powerful interaction and a larger range of action. Want to build a solid fastener? Utilize two neodymiums instead of one magnet and a steel. Exercise caution that when attracting two neodymiums, the impact force is massive. The repulsion force is slightly lower than the attraction, but still significant.
*The magnetic induction in repulsion mode reaches ~0 Gs at the midpoint of the gap (due to field cancellation).
* Calculations demonstrate sliding force of a pair of same neodymium magnets (friction ~0.15 for Ni-Ni coating).

Table 7: Hazards (electronics) - warnings
MW 30x5 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	11.0 cm
Hearing aid	10 Gs (1.0 mT)	8.5 cm
Mechanical watch	20 Gs (2.0 mT)	7.0 cm
Phone / Smartphone	40 Gs (4.0 mT)	5.5 cm
Remote	50 Gs (5.0 mT)	5.0 cm
Payment card	400 Gs (40.0 mT)	2.0 cm
HDD hard drive	600 Gs (60.0 mT)	1.5 cm

Powerful magnet radiation poses a serious hazard to electronics as well as medical implants. These neodymiums produce a flux that prevents correct functioning of sensitive medical devices. Be aware: the unseen radiation passes through tissues and housings. Increased vigilance must be exercised by people with hearing aids and drug dispensers. Influence will be felt by: automatic timepieces, remotes, membranes, and screens. Do not bring the product near payment cards, HDD media, or sensitive navigation tools.

Table 8: Collisions (kinetic energy) - warning
MW 30x5 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	20.77 km/h (5.77 m/s)	0.44 J
30 mm	31.78 km/h (8.83 m/s)	1.03 J
50 mm	40.89 km/h (11.36 m/s)	1.71 J
100 mm	57.81 km/h (16.06 m/s)	3.42 J

Magnetic elements are very brittle – a violent impact against metal risks their cracking. Pay attention to connection velocity – a neodymium left loose becomes dangerous. Kinetic force can cause material chips or painful pinches to skin. Always hold the magnet during installation so it doesn't slam with momentum against the steel surface. A collision at high speed ends with a crack of the magnet. Wear eye protection when playing with powerful specimens.

Table 9: Anti-corrosion coating durability
MW 30x5 / 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 30x5 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	16 658 Mx	166.6 µWb
P_c Coefficient	0.25	Low (Flat)

Total magnetic flux emitted by the pole surface. Key data in coil applications and motors. P_c value determines the working geometry.

Table 11: Hydrostatics and buoyancy
MW 30x5 / N38

Environment	Effective steel pull	Effect
Air (land)	8.71 kg	Standard
Water (riverbed)	9.97 kg (+1.26 kg buoyancy gain)	+14.5%

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

The magnetic field penetrates through water without any losses. However, remember the water resistance when pulling the rope quickly.

1. Wall mount (shear)

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

2. Plate thickness effect

*Thin metal sheet (e.g. computer case) significantly limits the holding force.

3. Temperature resistance

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

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 0.25

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 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: 010056-2026

Measurement Calculator

Force (pull)

Force (N)

Pounds (lbs)

Magnetic Induction

Gauss (Gs)

Tesla (T)

Enter data into any field, to see all other values convert in real-time.

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492.00 ZŁ brutto / pcs

The offered product is an extremely powerful cylindrical magnet, composed of durable NdFeB material, which, with dimensions of Ø30x5 mm, guarantees optimal power. The MW 30x5 / N38 model is characterized by high dimensional repeatability and industrial build quality, making it an excellent solution for the most demanding engineers and designers. As a magnetic rod with impressive force (approx. 8.71 kg), this product is in stock from our warehouse in Poland, ensuring quick order fulfillment. Furthermore, its Ni-Cu-Ni coating effectively protects it against corrosion in typical operating conditions, guaranteeing an aesthetic appearance and durability for years.

This model is created for building generators, advanced Hall effect sensors, and efficient filters, where maximum induction on a small surface counts. Thanks to the pull force of 85.42 N with a weight of only 26.51 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., 30.1 mm) using epoxy glues. 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 durability of the connection.

Magnets NdFeB grade N38 are suitable for the majority of applications in automation and machine building, where extreme miniaturization with maximum force is not required. If you need even stronger magnets in the same volume (Ø30x5), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard in continuous sale in our warehouse.

This model is characterized by dimensions Ø30x5 mm, which, at a weight of 26.51 g, makes it an element with high magnetic energy density. The key parameter here is the holding force amounting to approximately 8.71 kg (force ~85.42 N), which, with such defined 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.

Standardly, the magnetic axis runs through the center of the cylinder, causing the greatest attraction force to occur on the bases with a diameter of 30 mm. 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.

Advantages as well as disadvantages of Nd₂Fe₁₄B magnets.

Benefits

In addition to their long-term stability, neodymium magnets provide the following advantages:

They virtually do not lose strength, because even after 10 years the decline in efficiency is only ~1% (based on calculations),
They possess excellent resistance to magnetism drop due to opposing magnetic fields,
The use of an shiny layer of noble metals (nickel, gold, silver) causes the element to present itself better,
The surface of neodymium magnets generates a concentrated magnetic field – this is a distinguishing feature,
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...
Thanks to versatility in designing and the capacity to customize to complex applications,
Key role in high-tech industry – they are utilized in hard drives, electric motors, medical equipment, as well as modern systems.
Compactness – despite small sizes they generate large force, making them ideal for precision applications

Weaknesses

Problematic aspects of neodymium magnets: weaknesses and usage proposals

Brittleness is one of their disadvantages. Upon strong impact they can break. We recommend keeping them in a strong case, which not only secures them against impacts but also raises their durability
When exposed to high temperature, neodymium magnets experience a drop in force. 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 oxidize in a humid environment - during use outdoors we advise using waterproof magnets e.g. in rubber, plastic
We recommend cover - magnetic holder, due to difficulties in realizing threads inside the magnet and complicated forms.
Possible danger to health – tiny shards of magnets are risky, in case of ingestion, which is particularly important in the context of child safety. It is also worth noting that tiny parts of these products can complicate diagnosis medical when they are in the body.
Higher cost of purchase is one of the disadvantages compared to ceramic magnets, especially in budget applications

Holding force characteristics

Magnetic strength at its maximum – what contributes to it?

The lifting capacity listed is a theoretical maximum value conducted under specific, ideal conditions:

on a block made of mild steel, optimally conducting the magnetic field
possessing a thickness of minimum 10 mm to ensure full flux closure
with an ideally smooth contact surface
without the slightest insulating layer between the magnet and steel
during detachment in a direction vertical to the plane
in neutral thermal conditions

Practical lifting capacity: influencing factors

Please note that the working load will differ subject to elements below, in order of importance:

Distance (between the magnet and the plate), since even a microscopic distance (e.g. 0.5 mm) results in a decrease in lifting capacity by up to 50% (this also applies to varnish, rust or dirt).
Loading method – declared lifting capacity refers to pulling vertically. When attempting to slide, the magnet exhibits much less (typically approx. 20-30% of nominal force).
Element thickness – to utilize 100% power, the steel must be sufficiently thick. Paper-thin metal limits the lifting capacity (the magnet "punches through" it).
Metal type – not every steel reacts the same. High carbon content worsen the interaction with the magnet.
Smoothness – ideal contact is possible only on polished steel. Any scratches and bumps reduce the real contact area, reducing force.
Thermal environment – heating the magnet results in weakening of induction. Check the thermal limit for a given model.

Lifting capacity was determined with the use of a steel plate with a smooth surface of optimal thickness (min. 20 mm), under perpendicular pulling force, in contrast under attempts to slide the magnet the load capacity is reduced by as much as 75%. In addition, even a small distance between the magnet and the plate lowers the lifting capacity.

H&S for magnets

Crushing risk

Large magnets can smash fingers instantly. Under no circumstances place your hand between two attracting surfaces.

Impact on smartphones

GPS units and mobile phones are highly sensitive to magnetic fields. Direct contact with a strong magnet can permanently damage the internal compass in your phone.

Choking Hazard

Product intended for adults. Tiny parts can be swallowed, leading to intestinal necrosis. Store away from children and animals.

Fire warning

Powder generated during cutting of magnets is self-igniting. Avoid drilling into magnets unless you are an expert.

Do not overheat magnets

Watch the temperature. Heating the magnet above 80 degrees Celsius will permanently weaken its properties and strength.

Metal Allergy

It is widely known that the nickel plating (standard magnet coating) is a potent allergen. For allergy sufferers, avoid touching magnets with bare hands and choose coated magnets.

Eye protection

Despite the nickel coating, neodymium is brittle and not impact-resistant. Avoid impacts, as the magnet may crumble into hazardous fragments.

Data carriers

Avoid bringing magnets close to a wallet, computer, or screen. The magnetism can permanently damage these devices and wipe information from cards.

Medical interference

Individuals with a heart stimulator must keep an safe separation from magnets. The magnetism can disrupt the operation of the life-saving device.

Do not underestimate power

Handle magnets with awareness. Their huge power can shock even professionals. Stay alert and respect their force.

Warning! Looking for details? Check our post: Are neodymium magnets dangerous?

MW 30x5 / N38 - cylindrical magnet

Detailed specification - MW 30x5 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Engineering simulation of the magnet - technical parameters

Table 1: Static force (force vs gap) - power drop MW 30x5 / N38

Table 2: Slippage load (wall) MW 30x5 / N38

Table 3: Vertical assembly (shearing) - vertical pull MW 30x5 / N38

Table 4: Steel thickness (saturation) - sheet metal selection MW 30x5 / N38

Table 5: Thermal resistance (material behavior) - thermal limit MW 30x5 / N38

Table 6: Magnet-Magnet interaction (attraction) - field range MW 30x5 / N38

Table 7: Hazards (electronics) - warnings MW 30x5 / N38

Table 8: Collisions (kinetic energy) - warning MW 30x5 / N38

Table 9: Anti-corrosion coating durability MW 30x5 / N38

Table 10: Construction data (Flux) MW 30x5 / N38

Table 11: Hydrostatics and buoyancy MW 30x5 / N38

1. Wall mount (shear)

2. Plate thickness effect

3. Temperature resistance

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

Material specification

Sustainability

Force (pull)

Magnetic Induction

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SMZR 25x175 / N52 - magnetic separator with handle

Advantages as well as disadvantages of Nd2Fe14B magnets.

Benefits

Weaknesses

Holding force characteristics

Magnetic strength at its maximum – what contributes to it?

Practical lifting capacity: influencing factors

H&S for magnets

Crushing risk

Impact on smartphones

Choking Hazard

Fire warning

Do not overheat magnets

Metal Allergy

Eye protection

Data carriers

Medical interference

Do not underestimate power

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (force vs gap) - power drop
MW 30x5 / N38

Table 2: Slippage load (wall)
MW 30x5 / N38

Table 3: Vertical assembly (shearing) - vertical pull
MW 30x5 / N38

Table 4: Steel thickness (saturation) - sheet metal selection
MW 30x5 / N38

Table 5: Thermal resistance (material behavior) - thermal limit
MW 30x5 / N38

Table 6: Magnet-Magnet interaction (attraction) - field range
MW 30x5 / N38

Table 7: Hazards (electronics) - warnings
MW 30x5 / N38

Table 8: Collisions (kinetic energy) - warning
MW 30x5 / N38

Table 9: Anti-corrosion coating durability
MW 30x5 / N38

Table 10: Construction data (Flux)
MW 30x5 / N38

Table 11: Hydrostatics and buoyancy
MW 30x5 / N38

Advantages as well as disadvantages of Nd₂Fe₁₄B magnets.