Product available Ships in 3 days

MW 38x12 / 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
Rating: 5

cylindrical magnet

Catalog no 010060

GTIN/EAN: 5906301810599

Diameter Ø

38 mm [±0,1 mm]

Height

12 mm [±0,1 mm]

Weight

102.07 g

Magnetization Direction

↑ axial

Load capacity

32.79 kg / 321.71 N

Magnetic Induction

331.00 mT / 3310 Gs

Coating

[NiCuNi] Nickel

check technical data »

32.10 ZŁ with VAT / pcs + price for transport

26.10 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?

price from 1 pcs

26.10 ZŁ

32.10 ZŁ

price from 30 pcs

24.53 ZŁ

30.18 ZŁ

price from 100 pcs

22.97 ZŁ

28.25 ZŁ

Carbon Footprint – environmental impact GPSR Regulation – product safety

Need help making a decision?

Pick up the phone and ask +48 22 499 98 98 if you prefer drop us a message using inquiry form our website.
Specifications along with form of neodymium magnets can be checked on our magnetic calculator.

Orders submitted before 14:00 will be dispatched today!

Technical data of the product - MW 38x12 / N38 - cylindrical magnet

Specification / characteristics - MW 38x12 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010060
GTIN/EAN	5906301810599
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	38 mm [±0,1 mm]
Height	12 mm [±0,1 mm]
Weight	102.07 g
Magnetization Direction	↑ axial
Load capacity ~ ?	32.79 kg / 321.71 N
Magnetic Induction ~ ?	331.00 mT / 3310 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 38x12 / 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

Technical analysis of the assembly - technical parameters

Presented values constitute the outcome of a physical analysis. Values are based on models for the class Nd₂Fe₁₄B. Operational performance might slightly differ. Please consider these calculations as a supplementary guide during assembly planning.

Table 1: Static force (force vs gap) - power drop
MW 38x12 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	3309 Gs 330.9 mT	32.79 kg / 72.29 LBS 32790.0 g / 321.7 N	critical level
1 mm	3175 Gs 317.5 mT	30.18 kg / 66.54 LBS 30182.9 g / 296.1 N	critical level
2 mm	3029 Gs 302.9 mT	27.46 kg / 60.55 LBS 27464.0 g / 269.4 N	critical level
3 mm	2875 Gs 287.5 mT	24.74 kg / 54.55 LBS 24742.8 g / 242.7 N	critical level
5 mm	2556 Gs 255.6 mT	19.56 kg / 43.13 LBS 19563.2 g / 191.9 N	critical level
10 mm	1805 Gs 180.5 mT	9.75 kg / 21.50 LBS 9750.4 g / 95.7 N	warning
15 mm	1229 Gs 122.9 mT	4.52 kg / 9.96 LBS 4519.1 g / 44.3 N	warning
20 mm	836 Gs 83.6 mT	2.09 kg / 4.61 LBS 2092.9 g / 20.5 N	warning
30 mm	411 Gs 41.1 mT	0.51 kg / 1.11 LBS 505.7 g / 5.0 N	low risk
50 mm	132 Gs 13.2 mT	0.05 kg / 0.12 LBS 52.4 g / 0.5 N	low risk

Grip strength decreases drastically with every mm of spacing. Keep in mind that even a very thin break (e.g., contamination, varnish, dust) strongly diminishes the holding power. Neodymiums work optimally at the point of direct contact; distance kills the power. See how flashily the load capacity drop, when the magnet does not adhere flatly to the steel surface. When calculating the arrangement, discard additional spacers.

Table 2: Sliding force (vertical surface)
MW 38x12 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	6.56 kg / 14.46 LBS 6558.0 g / 64.3 N
1 mm	Stal (~0.2)	6.04 kg / 13.31 LBS 6036.0 g / 59.2 N
2 mm	Stal (~0.2)	5.49 kg / 12.11 LBS 5492.0 g / 53.9 N
3 mm	Stal (~0.2)	4.95 kg / 10.91 LBS 4948.0 g / 48.5 N
5 mm	Stal (~0.2)	3.91 kg / 8.62 LBS 3912.0 g / 38.4 N
10 mm	Stal (~0.2)	1.95 kg / 4.30 LBS 1950.0 g / 19.1 N
15 mm	Stal (~0.2)	0.90 kg / 1.99 LBS 904.0 g / 8.9 N
20 mm	Stal (~0.2)	0.42 kg / 0.92 LBS 418.0 g / 4.1 N
30 mm	Stal (~0.2)	0.10 kg / 0.22 LBS 102.0 g / 1.0 N
50 mm	Stal (~0.2)	0.01 kg / 0.02 LBS 10.0 g / 0.1 N

This section indicates the approximate force necessary to cause the sliding of the magnet vertically on a vertical metal surface (assuming typical friction coefficient). The holding force depends on the distance between the magnet and the metal.

Table 3: Wall mounting (sliding) - vertical pull
MW 38x12 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	9.84 kg / 21.69 LBS 9837.0 g / 96.5 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	6.56 kg / 14.46 LBS 6558.0 g / 64.3 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	3.28 kg / 7.23 LBS 3279.0 g / 32.2 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	16.40 kg / 36.14 LBS 16395.0 g / 160.8 N

When mounting a holder on a upright surface (e.g., a fridge), it you can count on barely approx. 1/5 of nominal attraction strength. Gravity as well as a low friction coefficient influence the fact that products slip faster than they pop off the substrate. Want to create a vertical fastening? Note that the sliding force is significantly lower than the maximum static pull force. On a slippery surface, the holder will slip down under a much lighter weight. Application of an anti-slip pad can drastically improve the result.

Table 4: Steel thickness (substrate influence) - sheet metal selection
MW 38x12 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	5%	1.64 kg / 3.61 LBS 1639.5 g / 16.1 N
1 mm	13%	4.10 kg / 9.04 LBS 4098.8 g / 40.2 N
2 mm	25%	8.20 kg / 18.07 LBS 8197.5 g / 80.4 N
3 mm	38%	12.30 kg / 27.11 LBS 12296.3 g / 120.6 N
5 mm	63%	20.49 kg / 45.18 LBS 20493.8 g / 201.0 N
10 mm	100%	32.79 kg / 72.29 LBS 32790.0 g / 321.7 N
11 mm	100%	32.79 kg / 72.29 LBS 32790.0 g / 321.7 N
12 mm	100%	32.79 kg / 72.29 LBS 32790.0 g / 321.7 N

A thin sheet is unable to take in the full magnetic flux, which weakens actual performance of the magnet. If you install a neodymium to a thin surface, the magnetism will pass right through and the attraction force will be weaker. To utilize 100% of this neodymium's power, you require a sufficiently solid piece of metal. The saturation effect causes that on delicate walls (e.g., appliance housings), the magnet shows lower pull force. We suggest choosing the steel dimension from these parameters.

Table 5: Thermal stability (stability) - thermal limit
MW 38x12 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	32.79 kg / 72.29 LBS 32790.0 g / 321.7 N	OK
40 °C	-2.2%	32.07 kg / 70.70 LBS 32068.6 g / 314.6 N	OK
60 °C	-4.4%	31.35 kg / 69.11 LBS 31347.2 g / 307.5 N
80 °C	-6.6%	30.63 kg / 67.52 LBS 30625.9 g / 300.4 N
100 °C	-28.8%	23.35 kg / 51.47 LBS 23346.5 g / 229.0 N

Classic neodymiums irreversibly lose parameters after exceeding the maximum temperature. Protect against heat – high temperature can permanently demagnetize this product. With every degree above norm, the magnet's force briefly decreases. Avoid using this product near heat sources exceeding its safe range. Too high temperature will result in destruction of magnetism.

*Technical advisory: Temperature resistance depends not only on the material grade, as well as the dimension ratios. Thin magnets (low Pc) risk losing magnetic properties sooner compared to rod magnets. The danger warning in the table indicates a risk of irreversible loss for this particular item.

Table 6: Magnet-Magnet interaction (attraction) - forces in the system
MW 38x12 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Strength (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	76.58 kg / 168.83 LBS 4 859 Gs	11.49 kg / 25.32 LBS 11487 g / 112.7 N	N/A
1 mm	73.60 kg / 162.27 LBS 6 489 Gs	11.04 kg / 24.34 LBS 11040 g / 108.3 N	66.24 kg / 146.04 LBS ~0 Gs
2 mm	70.49 kg / 155.40 LBS 6 350 Gs	10.57 kg / 23.31 LBS 10573 g / 103.7 N	63.44 kg / 139.86 LBS ~0 Gs
3 mm	67.33 kg / 148.43 LBS 6 206 Gs	10.10 kg / 22.26 LBS 10099 g / 99.1 N	60.59 kg / 133.59 LBS ~0 Gs
5 mm	60.95 kg / 134.38 LBS 5 905 Gs	9.14 kg / 20.16 LBS 9143 g / 89.7 N	54.86 kg / 120.94 LBS ~0 Gs
10 mm	45.69 kg / 100.73 LBS 5 113 Gs	6.85 kg / 15.11 LBS 6853 g / 67.2 N	41.12 kg / 90.65 LBS ~0 Gs
20 mm	22.77 kg / 50.20 LBS 3 609 Gs	3.42 kg / 7.53 LBS 3416 g / 33.5 N	20.49 kg / 45.18 LBS ~0 Gs
50 mm	2.34 kg / 5.17 LBS 1 158 Gs	0.35 kg / 0.78 LBS 352 g / 3.5 N	2.11 kg / 4.65 LBS ~0 Gs
60 mm	1.18 kg / 2.60 LBS 822 Gs	0.18 kg / 0.39 LBS 177 g / 1.7 N	1.06 kg / 2.34 LBS ~0 Gs
70 mm	0.63 kg / 1.38 LBS 598 Gs	0.09 kg / 0.21 LBS 94 g / 0.9 N	0.56 kg / 1.24 LBS ~0 Gs
80 mm	0.35 kg / 0.77 LBS 446 Gs	0.05 kg / 0.12 LBS 52 g / 0.5 N	0.31 kg / 0.69 LBS ~0 Gs
90 mm	0.20 kg / 0.45 LBS 340 Gs	0.03 kg / 0.07 LBS 30 g / 0.3 N	0.18 kg / 0.40 LBS ~0 Gs
100 mm	0.12 kg / 0.27 LBS 264 Gs	0.02 kg / 0.04 LBS 18 g / 0.2 N	0.11 kg / 0.24 LBS ~0 Gs

Two magnetic products attract each other from a much further distance than a neodymium and metal combination. Such a system of magnet-to-magnet creates a more powerful interaction and a further horizon of action. Planning to create a solid fastener? Apply two magnets instead of one magnet and a steel. Be careful that when bringing together two magnets, the collision energy is huge. The levitation is a bit weaker than the connection force, but still impressive.
*The magnetic induction for N-N configuration drops to ~0 Gs at the midpoint between the magnets (caused by magnetic field nullification).
* Results refer to friction force of dual same magnets (friction coefficient ~0.15 for Ni-Ni plating).

Table 7: Safety (HSE) (implants) - precautionary measures
MW 38x12 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	17.0 cm
Hearing aid	10 Gs (1.0 mT)	13.5 cm
Timepiece	20 Gs (2.0 mT)	10.5 cm
Phone / Smartphone	40 Gs (4.0 mT)	8.0 cm
Car key	50 Gs (5.0 mT)	7.5 cm
Payment card	400 Gs (40.0 mT)	3.5 cm
HDD hard drive	600 Gs (60.0 mT)	2.5 cm

Extremely neodym field poses a large risk to electronics and pacemakers. These neodymiums generate a flux that prevents correct functioning of digital equipment. Notice: the unseen radiation penetrates the body and housings. Increased vigilance must be taken by people with cochlear implants and drug dispensers. The risk also applies to: automatic timepieces, car keys, membranes, and screens. Do not bring the product near payment cards, HDD media, or sensitive navigation tools.

Table 8: Impact energy (kinetic energy) - warning
MW 38x12 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	21.17 km/h (5.88 m/s)	1.76 J
30 mm	31.61 km/h (8.78 m/s)	3.93 J
50 mm	40.46 km/h (11.24 m/s)	6.45 J
100 mm	57.16 km/h (15.88 m/s)	12.87 J

NdFeB products are prone to chipping – a collision with steel risks their cracking. Watch the impact speed – a magnet released freely becomes dangerous. Impact energy can trigger coating fragments or painful pinches to fingers. Always hold the magnet during mounting so it doesn't hit violently against the steel surface. A contact at a velocity of dozens of km/h ends with a crack of the neodymium. Wear safety glasses when handling with powerful specimens.

Table 9: Anti-corrosion coating durability
MW 38x12 / 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)

For outdoor applications, an epoxy coating is required; standard nickel is intended for indoor use. Moisture resistance is crucial for installations in bathrooms or outdoors.

Table 10: Construction data (Flux)
MW 38x12 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	40 045 Mx	400.5 µWb
P_c Coefficient	0.42	Low (Flat)

Total magnetic flux passing through the pole surface. Essential parameter when building generators as well as sensors. The P_c coefficient defines the magnet's operating point.

Table 11: Hydrostatics and buoyancy
MW 38x12 / N38

Environment	Effective steel pull	Effect
Air (land)	32.79 kg	Standard
Water (riverbed)	37.54 kg (+4.75 kg buoyancy gain)	+14.5%

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

In water, the magnet feels stronger thanks to Archimedes' principle. Note: for permanent underwater work, we recommend magnets with an anti-corrosive (epoxy) coating.

1. Sliding resistance

*Note: On a vertical surface, the magnet retains just ~20% of its nominal pull.

2. Steel saturation

*Thin steel (e.g. computer case) drastically weakens the holding force.

3. Heat tolerance

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

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 0.42

This simulation demonstrates the magnetic stability of the selected magnet under specific geometric conditions. The solid red line represents the demagnetization curve (material potential), while the dashed blue line is the load line based on the magnet's geometry. The P_c (Permeance Coefficient), also known as the load line slope, is a dimensionless value that describes the relationship between the magnet's shape and its magnetic stability. The intersection of these two lines (the black dot) is the operating point — it determines the actual magnetic flux density generated by the magnet in this specific configuration. A higher P_c value means the magnet is more 'slender' (tall relative to its area), resulting in a higher operating point and better resistance to irreversible demagnetization caused by external fields or temperature. A value of 0.42 is relatively low (typical for flat magnets), meaning the operating point is closer to the 'knee' of the curve — caution is advised when operating at temperatures near the maximum limit to avoid strength loss.

Technical and environmental data

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%

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: 010060-2026

Quick Unit Converter

Magnet pull force

Force (N)

lbs

Magnetic Field

Gauss (Gs)

Induction (T)

Simply complete one field, to let the converter calculate everything else instantly.

Other deals

Product available Ships in 3 days

MW 45x30 / N38 - cylindrical magnet

136.80 ZŁ brutto / pcs

Product available Ships in 3 days

UMT 12x20 green / N38 - board holder

1.894 ZŁ brutto / pcs

Product available Ships in 3 days

BM 950x180x70 [4x M8] - magnetic beam

8564.49 ZŁ brutto / pcs

Product available Ships in 3 days

MPL 30x20x5 / N38 - lamellar magnet

9.10 ZŁ brutto / pcs

This product is a very strong cylinder magnet, produced from modern NdFeB material, which, at dimensions of Ø38x12 mm, guarantees optimal power. The MW 38x12 / N38 component features a tolerance of ±0.1mm and industrial build quality, making it an excellent solution for professional engineers and designers. As a magnetic rod with significant force (approx. 32.79 kg), this product is available off-the-shelf from our European logistics center, ensuring rapid order fulfillment. Furthermore, 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 filters, where field concentration on a small surface counts. Thanks to the high power of 321.71 N with a weight of only 102.07 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 immediate cracking of this precision component. To ensure stability in industry, anaerobic resins are used, which do not react with the nickel coating and fill the gap, guaranteeing high repeatability 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 even stronger magnets in the same volume (Ø38x12), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard in continuous sale in our store.

This model is characterized by dimensions Ø38x12 mm, which, at a weight of 102.07 g, makes it an element with high magnetic energy density. The key parameter here is the holding force amounting to approximately 32.79 kg (force ~321.71 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 rod magnet is magnetized axially (along the height of 12 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 Nd₂Fe₁₄B magnets.

Pros

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

They retain full power for nearly ten years – the loss is just ~1% (according to analyses),
Magnets perfectly protect themselves against demagnetization caused by ambient magnetic noise,
A magnet with a shiny nickel surface has an effective appearance,
They feature high magnetic induction at the operating surface, which affects their effectiveness,
Neodymium magnets are characterized by very high magnetic induction on the magnet surface and can function (depending on the shape) even at a temperature of 230°C or more...
Possibility of detailed creating as well as optimizing to individual needs,
Significant place in advanced technology sectors – they find application in mass storage devices, electric drive systems, diagnostic systems, as well as technologically advanced constructions.
Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications

Limitations

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 protects them against impacts but also increases their durability
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 durability even at temperatures up to 230°C
Magnets exposed to a humid environment can corrode. Therefore when using outdoors, we advise using water-impermeable magnets made of rubber, plastic or other material resistant to moisture
We suggest cover - magnetic mount, due to difficulties in producing threads inside the magnet and complex forms.
Health risk to health – tiny shards of magnets pose a threat, in case of ingestion, which gains importance in the context of child safety. Furthermore, tiny parts of these devices can complicate diagnosis medical after entering the body.
High unit price – neodymium magnets are more expensive than other types of magnets (e.g. ferrite), which can limit application in large quantities

Pull force analysis

Detachment force of the magnet in optimal conditions – what contributes to it?

The force parameter is a result of laboratory testing performed under the following configuration:

using a plate made of mild steel, serving as a magnetic yoke
possessing a massiveness of minimum 10 mm to ensure full flux closure
with a plane perfectly flat
with total lack of distance (no coatings)
under perpendicular application of breakaway force (90-degree angle)
in temp. approx. 20°C

What influences lifting capacity in practice

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

Air gap (betwixt the magnet and the metal), since even a microscopic clearance (e.g. 0.5 mm) leads to a reduction in lifting capacity by up to 50% (this also applies to paint, rust or debris).
Pull-off angle – remember that the magnet holds strongest perpendicularly. Under shear forces, the holding force drops drastically, often to levels of 20-30% of the maximum value.
Substrate thickness – for full efficiency, the steel must be adequately massive. Thin sheet restricts the lifting capacity (the magnet "punches through" it).
Metal type – not every steel reacts the same. Alloy additives worsen the interaction with the magnet.
Surface condition – ground elements guarantee perfect abutment, which improves force. Uneven metal reduce efficiency.
Temperature – temperature increase causes a temporary drop of induction. It is worth remembering the thermal limit for a given model.

Lifting capacity testing was conducted on a smooth plate of optimal thickness, under a perpendicular pulling force, however under shearing force the load capacity is reduced by as much as 75%. Moreover, even a minimal clearance between the magnet’s surface and the plate lowers the lifting capacity.

Precautions when working with neodymium magnets

Machining danger

Dust produced during machining of magnets is combustible. Avoid drilling into magnets without proper cooling and knowledge.

Handling guide

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

Nickel allergy

Allergy Notice: The nickel-copper-nickel coating contains nickel. If skin irritation happens, cease working with magnets and use protective gear.

Beware of splinters

Beware of splinters. Magnets can explode upon violent connection, ejecting shards into the air. Eye protection is mandatory.

Medical implants

Warning for patients: Powerful magnets affect electronics. Keep at least 30 cm distance or ask another person to handle the magnets.

Product not for children

Always store magnets away from children. Ingestion danger is significant, and the effects of magnets clamping inside the body are fatal.

Data carriers

Data protection: Neodymium magnets can ruin data carriers and sensitive devices (heart implants, medical aids, timepieces).

Power loss in heat

Avoid heat. NdFeB magnets are sensitive to temperature. If you need resistance above 80°C, look for HT versions (H, SH, UH).

Compass and GPS

Be aware: neodymium magnets produce a field that disrupts sensitive sensors. Maintain a safe distance from your phone, tablet, and GPS.

Bone fractures

Protect your hands. Two powerful magnets will join instantly with a force of several hundred kilograms, crushing everything in their path. Be careful!

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

MW 38x12 / N38 - cylindrical magnet

Technical data of the product - MW 38x12 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Technical analysis of the assembly - technical parameters

Table 1: Static force (force vs gap) - power drop MW 38x12 / N38

Table 2: Sliding force (vertical surface) MW 38x12 / N38

Table 3: Wall mounting (sliding) - vertical pull MW 38x12 / N38

Table 4: Steel thickness (substrate influence) - sheet metal selection MW 38x12 / N38

Table 5: Thermal stability (stability) - thermal limit MW 38x12 / N38

Table 6: Magnet-Magnet interaction (attraction) - forces in the system MW 38x12 / N38

Table 7: Safety (HSE) (implants) - precautionary measures MW 38x12 / N38

Table 8: Impact energy (kinetic energy) - warning MW 38x12 / N38

Table 9: Anti-corrosion coating durability MW 38x12 / N38

Table 10: Construction data (Flux) MW 38x12 / N38

Table 11: Hydrostatics and buoyancy MW 38x12 / N38

1. Sliding resistance

2. Steel saturation

3. Heat tolerance

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

Material specification

Environmental data

Magnet pull force

Magnetic Field

Other deals

MW 45x30 / N38 - cylindrical magnet

UMT 12x20 green / N38 - board holder

BM 950x180x70 [4x M8] - magnetic beam

MPL 30x20x5 / N38 - lamellar magnet

Strengths and weaknesses of Nd2Fe14B magnets.

Pros

Limitations

Pull force analysis

Detachment force of the magnet in optimal conditions – what contributes to it?

What influences lifting capacity in practice

Precautions when working with neodymium magnets

Machining danger

Handling guide

Nickel allergy

Beware of splinters

Medical implants

Product not for children

Data carriers

Power loss in heat

Compass and GPS

Bone fractures

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (force vs gap) - power drop
MW 38x12 / N38

Table 2: Sliding force (vertical surface)
MW 38x12 / N38

Table 3: Wall mounting (sliding) - vertical pull
MW 38x12 / N38

Table 4: Steel thickness (substrate influence) - sheet metal selection
MW 38x12 / N38

Table 5: Thermal stability (stability) - thermal limit
MW 38x12 / N38

Table 6: Magnet-Magnet interaction (attraction) - forces in the system
MW 38x12 / N38

Table 7: Safety (HSE) (implants) - precautionary measures
MW 38x12 / N38

Table 8: Impact energy (kinetic energy) - warning
MW 38x12 / N38

Table 9: Anti-corrosion coating durability
MW 38x12 / N38

Table 10: Construction data (Flux)
MW 38x12 / N38

Table 11: Hydrostatics and buoyancy
MW 38x12 / N38

Strengths and weaknesses of Nd₂Fe₁₄B magnets.