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MW 80x30 / N38 - cylindrical magnet

Name: Dhit sp. z o.o.
Address: Kościuszki 6A, Ożarów Mazowiecki, mazowieckie, 05-850, PL
Telephone: +48 22 499 98 98
Price range: 1-6500 PLN

cylindrical magnet

Catalog no 010100

GTIN/EAN: 5906301810995

5.00

Load capacity 170.64 kg / 1673.99 N Magnetic Induction 371.95 mT / 3720 Gs

Diameter Ø: 80 mm [±0,1 mm]
Height: 30 mm [±0,1 mm]
Weight: 1130.97 g
Magnetization Direction: ↑ axial
Coating: [NiCuNi] Nickel

How we measure these parameters — certificates and measurements

see specifications »

337.40 zł net / pcs

415.00 zł with VAT (23% VAT) / pcs

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Frequently asked questions

What is the maximum working temperature of a disc magnet?

Standard N-series grades work up to 80 °C. Grades N50, N52 and N54 have a lower limit of 60 °C, because coercivity falls as BHmax rises. Higher temperatures require the H (120 °C), SH (150 °C), UH (180 °C), EH (200 °C) or AH (230 °C) series. Within the working range the magnet loses about 0.11% of its induction per degree, and that loss is reversible.

What is the difference between N38, N42 and N52?

The number after N is the energy product BHmax. Moving from N38 to N52 raises it by several tens of percent, but the real holding force increases by roughly 20%, because force also depends on geometry and on the magnetic circuit. N52 costs about twice as much as N42, so for most mounting work N38–N42 is the best price-to-force ratio.

What is the dimensional tolerance?

±0.1 mm as standard, ±0.05 mm to order. The tolerance is stated next to the dimensions on every product page.

Guides from the knowledge base

Engineering report for this magnet

Full PDF analysis: pull and shear force, effect of distance, temperature and plate thickness, safety distances and the demagnetization curve.

PDF report Calculator

Want to talk magnets?

Call us now +48 888 99 98 98 alternatively let us know using contact form the contact section.
Specifications and structure of a neodymium magnet can be estimated using our power calculator.

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Product card - MW 80x30 / N38 - cylindrical magnet

Specification / characteristics - MW 80x30 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010100
GTIN/EAN	5906301810995
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	80 mm [±0,1 mm]
Height	30 mm [±0,1 mm]
Weight	1130.97 g
Magnetization Direction	↑ axial
Load capacity ~ ?	170.64 kg / 1673.99 N
Magnetic Induction ~ ?	371.95 mT / 3720 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 80x30 / N38 - cylindrical magnet

properties	values	units
Remanence Br ?	12.2-12.6	kGs
Remanence Br ?	1220-1260	mT
Coercivity bHc ?	10.8-11.5	kOe
Coercivity bHc ?	860-915	kA/m
Intrinsic coercivity iHc	≥ 12	kOe
Intrinsic coercivity iHc	≥ 955	kA/m
Energy product BHmax ?	36-38	BH max MGOe
Energy product BHmax ?	287-303	BH max KJ/m
Maximum working 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	310	°C
Curie Temperature TF	590	°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

Technical modeling of the product - report

These information are the outcome of a engineering calculation. Values were calculated on algorithms for the material Nd₂Fe₁₄B. Operational parameters may differ. Treat these calculations as a preliminary roadmap during assembly planning.

Table 1: Static force (force vs gap) - characteristics
MW 80x30 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	3719 Gs 371.9 mT	170.64 kg / 376.20 pounds 170640.0 g / 1674.0 N	critical level
1 mm	3643 Gs 364.3 mT	163.71 kg / 360.93 pounds 163714.9 g / 1606.0 N	critical level
2 mm	3563 Gs 356.3 mT	156.65 kg / 345.35 pounds 156647.8 g / 1536.7 N	critical level
3 mm	3482 Gs 348.2 mT	149.55 kg / 329.71 pounds 149554.1 g / 1467.1 N	critical level
5 mm	3314 Gs 331.4 mT	135.46 kg / 298.63 pounds 135457.0 g / 1328.8 N	critical level
10 mm	2880 Gs 288.0 mT	102.34 kg / 225.63 pounds 102343.3 g / 1004.0 N	critical level
15 mm	2457 Gs 245.7 mT	74.47 kg / 164.17 pounds 74468.4 g / 730.5 N	critical level
20 mm	2069 Gs 206.9 mT	52.79 kg / 116.38 pounds 52789.9 g / 517.9 N	critical level
30 mm	1439 Gs 143.9 mT	25.53 kg / 56.29 pounds 25534.0 g / 250.5 N	critical level
50 mm	704 Gs 70.4 mT	6.11 kg / 13.48 pounds 6115.0 g / 60.0 N	strong

Pulling power drops drastically per each millimeter of distance. Note that even a very thin break (e.g., dirt, varnish, veneer) noticeably reduces the pull force. Neodymiums hold optimally at the point of direct contact; distance kills the force. See how rapidly the parameters drop, when the product does not adhere flatly to the metal substrate. When designing the arrangement, eliminate unnecessary gaps.

Table 2: Vertical hold (vertical surface)
MW 80x30 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	34.13 kg / 75.24 pounds 34128.0 g / 334.8 N
1 mm	Stal (~0.2)	32.74 kg / 72.18 pounds 32742.0 g / 321.2 N
2 mm	Stal (~0.2)	31.33 kg / 69.07 pounds 31330.0 g / 307.3 N
3 mm	Stal (~0.2)	29.91 kg / 65.94 pounds 29910.0 g / 293.4 N
5 mm	Stal (~0.2)	27.09 kg / 59.73 pounds 27092.0 g / 265.8 N
10 mm	Stal (~0.2)	20.47 kg / 45.12 pounds 20468.0 g / 200.8 N
15 mm	Stal (~0.2)	14.89 kg / 32.84 pounds 14894.0 g / 146.1 N
20 mm	Stal (~0.2)	10.56 kg / 23.28 pounds 10558.0 g / 103.6 N
30 mm	Stal (~0.2)	5.11 kg / 11.26 pounds 5106.0 g / 50.1 N
50 mm	Stal (~0.2)	1.22 kg / 2.69 pounds 1222.0 g / 12.0 N

This section shows the estimated shear load needed to start the slippage of the magnet down against a upright metal surface (assuming standard friction). The holding force is a function of the gap size between the magnet and the metal.

Table 3: Vertical assembly (shearing) - vertical pull
MW 80x30 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	51.19 kg / 112.86 pounds 51192.0 g / 502.2 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	34.13 kg / 75.24 pounds 34128.0 g / 334.8 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	17.06 kg / 37.62 pounds 17064.0 g / 167.4 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	85.32 kg / 188.10 pounds 85320.0 g / 837.0 N

When mounting a element on a upright surface (e.g., a car body), it you can count on just approx. 20%-30% of nominal attraction strength. Gravitational force and a weak degree of grip cause that holders slide down easier than they detach. Want to create a hanger? Consider that the sliding force is significantly lower than the perpendicular breakaway force. On a smooth steel, the holder will give way down under a significantly smaller load. Using a rubber pad can drastically increase the grip.

Table 4: Steel thickness (saturation) - power losses
MW 80x30 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	3%	5.69 kg / 12.54 pounds 5688.0 g / 55.8 N
1 mm	8%	14.22 kg / 31.35 pounds 14220.0 g / 139.5 N
2 mm	17%	28.44 kg / 62.70 pounds 28440.0 g / 279.0 N
3 mm	25%	42.66 kg / 94.05 pounds 42660.0 g / 418.5 N
5 mm	42%	71.10 kg / 156.75 pounds 71100.0 g / 697.5 N
10 mm	83%	142.20 kg / 313.50 pounds 142200.0 g / 1395.0 N
11 mm	92%	156.42 kg / 344.85 pounds 156420.0 g / 1534.5 N
12 mm	100%	170.64 kg / 376.20 pounds 170640.0 g / 1674.0 N

A thin sheet is not enough to absorb the full magnetic flux, which squanders power of the holder. Should you install a neodymium to a weak sheet, the field will penetrate right through and the pull force will drop sharply. To squeeze the maximum of this magnet's power, you require a sufficiently solid backing of metal. The saturation phenomenon means that on delicate walls (e.g., appliance housings), the holder works worse. We suggest choosing the steel dimension according to the table below.

Table 5: Working in heat (material behavior) - resistance threshold
MW 80x30 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	170.64 kg / 376.20 pounds 170640.0 g / 1674.0 N	OK
40 °C	-2.2%	166.89 kg / 367.92 pounds 166885.9 g / 1637.2 N	OK
60 °C	-4.4%	163.13 kg / 359.64 pounds 163131.8 g / 1600.3 N
80 °C	-6.6%	159.38 kg / 351.37 pounds 159377.8 g / 1563.5 N
100 °C	-28.8%	121.50 kg / 267.85 pounds 121495.7 g / 1191.9 N

Classic neodymiums lose power after exceeding the maximum temperature. Avoid high temperatures – heat can permanently damage this product. With increasing heat, the neodymium's power temporarily drops. Avoid using this product close to heaters exceeding its safe range. Too high temperature will lead to irreversible degradation of magnetism.

*Engineering note: Heat tolerance is determined by both grade, and the Permeance Coefficient Pc. Thin magnets (low Pc) may lose charge permanently sooner 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 80x30 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Strength (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	428.66 kg / 945.03 pounds 5 157 Gs	64.30 kg / 141.76 pounds 64299 g / 630.8 N	N/A
1 mm	420.08 kg / 926.12 pounds 7 364 Gs	63.01 kg / 138.92 pounds 63012 g / 618.1 N	378.07 kg / 833.51 pounds ~0 Gs
2 mm	411.26 kg / 906.68 pounds 7 286 Gs	61.69 kg / 136.00 pounds 61690 g / 605.2 N	370.14 kg / 816.01 pounds ~0 Gs
3 mm	402.40 kg / 887.15 pounds 7 207 Gs	60.36 kg / 133.07 pounds 60360 g / 592.1 N	362.16 kg / 798.43 pounds ~0 Gs
5 mm	384.60 kg / 847.90 pounds 7 046 Gs	57.69 kg / 127.19 pounds 57690 g / 565.9 N	346.14 kg / 763.11 pounds ~0 Gs
10 mm	340.28 kg / 750.18 pounds 6 627 Gs	51.04 kg / 112.53 pounds 51042 g / 500.7 N	306.25 kg / 675.17 pounds ~0 Gs
20 mm	257.09 kg / 566.80 pounds 5 761 Gs	38.56 kg / 85.02 pounds 38564 g / 378.3 N	231.38 kg / 510.12 pounds ~0 Gs
50 mm	92.55 kg / 204.04 pounds 3 456 Gs	13.88 kg / 30.61 pounds 13883 g / 136.2 N	83.30 kg / 183.63 pounds ~0 Gs
60 mm	64.14 kg / 141.41 pounds 2 877 Gs	9.62 kg / 21.21 pounds 9622 g / 94.4 N	57.73 kg / 127.27 pounds ~0 Gs
70 mm	44.44 kg / 97.98 pounds 2 395 Gs	6.67 kg / 14.70 pounds 6666 g / 65.4 N	40.00 kg / 88.18 pounds ~0 Gs
80 mm	30.93 kg / 68.19 pounds 1 998 Gs	4.64 kg / 10.23 pounds 4639 g / 45.5 N	27.84 kg / 61.37 pounds ~0 Gs
90 mm	21.69 kg / 47.82 pounds 1 673 Gs	3.25 kg / 7.17 pounds 3254 g / 31.9 N	19.52 kg / 43.04 pounds ~0 Gs
100 mm	15.36 kg / 33.87 pounds 1 408 Gs	2.30 kg / 5.08 pounds 2304 g / 22.6 N	13.83 kg / 30.48 pounds ~0 Gs

Two magnets interact from a much further distance than a neodymium and metal setup. Such a system of magnet-to-magnet produces a massive flux and a further horizon of operation. Planning to create a powerful holder? Utilize two neodymiums instead of one magnet and a steel. Exercise caution that when attracting two neodymiums, the pinch force is massive. The repulsion force is slightly lower than the connection force, but still impressive.
*The magnetic induction in repulsion mode drops to ~0 Gs at the midpoint between the magnets (caused by magnetic field nullification).
Note: Calculations demonstrate shear force of dual same magnets (friction ~0.15 for Ni-Ni plating).

Table 7: Hazards (implants) - precautionary measures
MW 80x30 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	37.5 cm
Hearing aid	10 Gs (1.0 mT)	29.5 cm
Mechanical watch	20 Gs (2.0 mT)	23.0 cm
Mobile device	40 Gs (4.0 mT)	18.0 cm
Remote	50 Gs (5.0 mT)	16.5 cm
Payment card	400 Gs (40.0 mT)	7.0 cm
HDD hard drive	600 Gs (60.0 mT)	5.5 cm

A strong magnetic field is a serious hazard to electronic devices as well as pacemakers. These NdFeB products generate a field that destroys function of sensitive medical devices. Be aware: the unseen radiation acts through matter and plastic. Exceptional care must be exercised by people with hearing aids and insulin pumps. The risk also applies to: automatic timepieces, car keys, speakers, and screens. Avoid contact with magnetic cards, hard drives, or sensitive navigation tools.

Table 8: Dynamics (cracking risk) - warning
MW 80x30 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	17.48 km/h (4.85 m/s)	13.32 J
30 mm	23.66 km/h (6.57 m/s)	24.42 J
50 mm	24.91 km/h (6.92 m/s)	27.06 J
100 mm	25.32 km/h (7.03 m/s)	27.98 J

Magnetic elements are very brittle – a violent impact against metal risks their cracking. Control the attraction moment – a magnet released freely turns into a projectile. Striking energy can cause material chips or injury to fingers. Hold the magnet firmly during installation so it doesn't hit with great force against the metal. A contact at a velocity of dozens of km/h means shattering of the magnet. Wear safety glasses when handling with powerful specimens.

Table 9: Surface protection spec
MW 80x30 / 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: Construction data (Flux)
MW 80x30 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	194 600 Mx	1946.0 µWb
P_c Coefficient	0.48	Low (Flat)

Flux value passing through the pole surface. Key data in coil applications and motors. The P_c coefficient determines the working geometry.

Table 11: Submerged application
MW 80x30 / N38

Environment	Effective steel pull	Effect
Air (land)	170.64 kg	Standard
Water (riverbed)	195.38 kg (+24.74 kg buoyancy gain)	+14.5%

Rust risk: 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. As a result, your magnet will pull a heavier object from the bottom than if you lifted it in the air.

1. Shear force

*Warning: On a vertical surface, the magnet retains only a fraction of its max power.

2. Steel thickness impact

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

3. Heat tolerance

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

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 0.48

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

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%

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: 010100-2026

Measurement Calculator

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The presented product is a very strong cylindrical magnet, composed of advanced NdFeB material, which, with dimensions of Ø80x30 mm, guarantees optimal power. The MW 80x30 / N38 component features a tolerance of ±0.1mm and professional build quality, making it an excellent solution for professional engineers and designers. As a magnetic rod with significant force (approx. 170.64 kg), this product is available off-the-shelf from our European logistics center, ensuring rapid order fulfillment. Moreover, its triple-layer Ni-Cu-Ni coating shields it against corrosion in typical operating conditions, guaranteeing an aesthetic appearance and durability for years.

This model is perfect for building electric motors, advanced Hall effect sensors, and efficient filters, where maximum induction on a small surface counts. Thanks to the pull force of 1673.99 N with a weight of only 1130.97 g, this cylindrical magnet is indispensable in miniature devices and wherever low weight is crucial.

Due to the delicate structure of the ceramic sinter, you must not use force-fitting (so-called press-fit), as this risks chipping the coating of this precision component. To ensure stability in industry, anaerobic resins 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 excessive miniaturization with maximum force is not required. If you need the strongest magnets in the same volume (Ø80x30), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard available off-the-shelf in our warehouse.

This model is characterized by dimensions Ø80x30 mm, which, at a weight of 1130.97 g, makes it an element with impressive magnetic energy density. The key parameter here is the lifting capacity amounting to approximately 170.64 kg (force ~1673.99 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 80 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 through the diameter if your project requires it.

Pros and cons of rare earth magnets.

Benefits

Besides their immense pulling force, neodymium magnets offer the following advantages:

They retain attractive force for almost 10 years – the drop is just ~1% (according to analyses),
They are noted for resistance to demagnetization induced by external field influence,
By applying a decorative layer of gold, the element presents an professional look,
They are known for high magnetic induction at the operating surface, which affects their effectiveness,
Thanks to resistance to high temperature, they can operate (depending on the form) even at temperatures up to 230°C and higher...
Considering the possibility of accurate molding and customization to specialized solutions, neodymium magnets can be produced in a variety of geometric configurations, which increases their versatility,
Universal use in electronics industry – they are used in data components, electromotive mechanisms, precision medical tools, also industrial machines.
Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in small dimensions, which makes them useful in small systems

Cons

Disadvantages of neodymium magnets:

They are fragile upon too strong impacts. To avoid cracks, it is worth securing magnets using a steel holder. Such protection not only shields the magnet but also increases its resistance to damage
Neodymium magnets decrease their power under the influence of heating. As soon as 80°C is exceeded, many of them start losing their force. Therefore, we recommend our special magnets marked [AH], which maintain stability even at temperatures up to 230°C
They rust in a humid environment - during use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
We recommend casing - magnetic holder, due to difficulties in creating nuts inside the magnet and complex forms.
Health risk resulting from small fragments of magnets pose a threat, if swallowed, which gains importance in the context of child health protection. It is also worth noting that tiny parts of these devices are able to disrupt the diagnostic process medical when they are in the body.
With budget limitations the cost of neodymium magnets is economically unviable,

Holding force characteristics

Maximum holding power of the magnet – what affects it?

The specified lifting capacity concerns the limit force, measured under laboratory conditions, specifically:

using a plate made of high-permeability steel, functioning as a ideal flux conductor
possessing a thickness of at least 10 mm to avoid saturation
with a surface perfectly flat
under conditions of ideal adhesion (metal-to-metal)
during pulling in a direction perpendicular to the mounting surface
at ambient temperature approx. 20 degrees Celsius

Lifting capacity in practice – influencing factors

In real-world applications, the real power is determined by many variables, ranked from most significant:

Air gap (between the magnet and the plate), as even a tiny clearance (e.g. 0.5 mm) results in a drastic drop in force by up to 50% (this also applies to varnish, rust or dirt).
Direction of force – highest force is reached only during perpendicular pulling. The force required to slide of the magnet along the surface is usually many times lower (approx. 1/5 of the lifting capacity).
Wall thickness – thin material does not allow full use of the magnet. Magnetic flux penetrates through instead of converting into lifting capacity.
Material type – the best choice is pure iron steel. Stainless steels may attract less.
Surface condition – ground elements guarantee perfect abutment, which increases force. Uneven metal weaken the grip.
Thermal factor – high temperature weakens pulling force. Too high temperature can permanently damage the magnet.

Holding force was checked on the plate surface of 20 mm thickness, when a perpendicular force was applied, in contrast under attempts to slide the magnet the holding force is lower. In addition, even a minimal clearance between the magnet’s surface and the plate lowers the load capacity.

Precautions when working with neodymium magnets

Nickel coating and allergies

Certain individuals experience a contact allergy to Ni, which is the standard coating for neodymium magnets. Frequent touching might lead to dermatitis. We strongly advise wear safety gloves.

Do not give to children

These products are not intended for children. Accidental ingestion of a few magnets may result in them connecting inside the digestive tract, which poses a severe health hazard and necessitates immediate surgery.

Magnetic media

Avoid bringing magnets close to a wallet, laptop, or screen. The magnetic field can permanently damage these devices and erase data from cards.

Conscious usage

Use magnets with awareness. Their powerful strength can surprise even experienced users. Be vigilant and respect their force.

Flammability

Combustion risk: Neodymium dust is explosive. Avoid machining magnets without safety gear as this may cause fire.

Keep away from electronics

Remember: neodymium magnets generate a field that disrupts precision electronics. Maintain a safe distance from your phone, tablet, and navigation systems.

ICD Warning

For implant holders: Strong magnetic fields affect medical devices. Maintain minimum 30 cm distance or ask another person to handle the magnets.

Beware of splinters

Beware of splinters. Magnets can explode upon uncontrolled impact, launching shards into the air. We recommend safety glasses.

Thermal limits

Regular neodymium magnets (grade N) lose power when the temperature surpasses 80°C. Damage is permanent.

Bodily injuries

Mind your fingers. Two powerful magnets will snap together instantly with a force of massive weight, destroying everything in their path. Be careful!

Warning! More info about hazards in the article: Magnet Safety Guide.

MW 80x30 / N38 - cylindrical magnet

Product card - MW 80x30 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Technical modeling of the product - report

Table 1: Static force (force vs gap) - characteristics MW 80x30 / N38

Table 2: Vertical hold (vertical surface) MW 80x30 / N38

Table 3: Vertical assembly (shearing) - vertical pull MW 80x30 / N38

Table 4: Steel thickness (saturation) - power losses MW 80x30 / N38

Table 5: Working in heat (material behavior) - resistance threshold MW 80x30 / N38

Table 6: Magnet-Magnet interaction (repulsion) - field range MW 80x30 / N38

Table 7: Hazards (implants) - precautionary measures MW 80x30 / N38

Table 8: Dynamics (cracking risk) - warning MW 80x30 / N38

Table 9: Surface protection spec MW 80x30 / N38

Table 10: Construction data (Flux) MW 80x30 / N38

Table 11: Submerged application MW 80x30 / N38

1. Shear force

2. Steel thickness impact

3. Heat tolerance

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

Elemental analysis

Environmental data

Magnet pull force

Magnetic Induction

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Pros and cons of rare earth magnets.

Benefits

Cons

Holding force characteristics

Maximum holding power of the magnet – what affects it?

Lifting capacity in practice – influencing factors

Precautions when working with neodymium magnets

Nickel coating and allergies

Do not give to children

Magnetic media

Conscious usage

Flammability

Keep away from electronics

ICD Warning

Beware of splinters

Thermal limits

Bodily injuries

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (force vs gap) - characteristics
MW 80x30 / N38

Table 2: Vertical hold (vertical surface)
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Table 3: Vertical assembly (shearing) - vertical pull
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Table 4: Steel thickness (saturation) - power losses
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Table 5: Working in heat (material behavior) - resistance threshold
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Table 6: Magnet-Magnet interaction (repulsion) - field range
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Table 7: Hazards (implants) - precautionary measures
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Table 8: Dynamics (cracking risk) - warning
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Table 9: Surface protection spec
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Table 10: Construction data (Flux)
MW 80x30 / N38

Table 11: Submerged application
MW 80x30 / N38