Product available Ships today (order by 14:00)

MW 2x4 / N38 - cylindrical magnet

Name: Dhit sp. z o.o.
Address: Kościuszki 6A, Ożarów Mazowiecki, Poland, 05-850, PL
Telephone: +48 22 499 98 98
Price range: PLN 1-6500
Rating: 5

cylindrical magnet

Catalog no 010055

GTIN/EAN: 5906301810544

5.00

Diameter Ø

2 mm [±0,1 mm]

Height

4 mm [±0,1 mm]

Weight

0.09 g

Magnetization Direction

↑ axial

Load capacity

0.09 kg / 0.86 N

Magnetic Induction

597.70 mT / 5977 Gs

Coating

[NiCuNi] Nickel

check technical data »

0.209 ZŁ with VAT / pcs + price for transport

0.1700 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?

price from 1 pcs

0.1700 ZŁ

0.209 ZŁ

price from 5000 pcs

0.1496 ZŁ

0.1840 ZŁ

price from 10000 pcs

0.1445 ZŁ

0.1777 ZŁ

Carbon Footprint – environmental impact GPSR Regulation – product safety

Not sure about your choice?

Pick up the phone and ask +48 888 99 98 98 alternatively send us a note using form the contact page.
Force and structure of a magnet can be analyzed on our magnetic calculator.

Order by 14:00 and we’ll ship today!

Technical specification - MW 2x4 / N38 - cylindrical magnet

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

properties

properties	values
Cat. no.	010055
GTIN/EAN	5906301810544
Production/Distribution	Dhit sp. z o.o. ul. Zielona 14 05-850 Ożarów Mazowiecki PL
Country of origin	Poland / China / Germany
Customs code	85059029
Diameter Ø	2 mm [±0,1 mm]
Height	4 mm [±0,1 mm]
Weight	0.09 g
Magnetization Direction	↑ axial
Load capacity ~ ?	0.09 kg / 0.86 N
Magnetic Induction ~ ?	597.70 mT / 5977 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 2x4 / N38 - cylindrical magnet

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

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

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

Engineering simulation of the magnet - technical parameters

Presented data constitute the direct effect of a mathematical calculation. Values are based on algorithms for the class Nd₂Fe₁₄B. Operational conditions might slightly differ from theoretical values. Please consider these data as a preliminary roadmap for designers.

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

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

Pulling power weakens drastically with every subsequent millimeter of spacing. Keep in mind that even the smallest gap (e.g., contamination, paint, dust) significantly weakens the grip. Magnets hold most effectively at the point of direct contact; air break weakens the force. Analyze how rapidly the load capacity drop, when the product does not adhere flatly to the metal substrate. When planning the mounting, eliminate unnecessary gaps.

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

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	0.02 kg / 0.04 pounds 18.0 g / 0.2 N
1 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 2.0 g / 0.0 N
2 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 0.0 g / 0.0 N
3 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 0.0 g / 0.0 N
5 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 0.0 g / 0.0 N
10 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 0.0 g / 0.0 N
15 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 0.0 g / 0.0 N
20 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 0.0 g / 0.0 N
30 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 0.0 g / 0.0 N
50 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 0.0 g / 0.0 N

This section shows the approximate holding capacity necessary to cause the shifting of the magnet downwards along a vertical steel wall (assuming typical friction). The holding force varies with the distance between the magnet and the metal.

Table 3: Wall mounting (shearing) - behavior on slippery surfaces
MW 2x4 / N38

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

When placing a element on a upright plane (e.g., a car body), it will only hold just about 1/5 of its maximum pull force. Gravitational force and a low friction coefficient cause that products slip faster than they pop off the substrate. Designing a vertical fastening? Consider that the shear force is significantly lower than the perpendicular breakaway force. On a painted metal, the magnet will give way down under a noticeably lighter load. Application of an anti-slip coating can significantly increase the grip.

Table 4: Material efficiency (saturation) - sheet metal selection
MW 2x4 / N38

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

A thin sheet is incapable of absorb the entire magnetic field, which weakens actual performance of the holder. Should you install a neodymium to a too thin substrate, the field will pass right through and the attraction force will be weaker. To achieve 100% of this neodymium's power, you need a suitably thick backing of steel. The material oversaturation causes that on sheet metal structures (e.g., thin profiles), the holder works worse. We suggest choosing the steel dimension based on the following data.

Table 5: Working in heat (material behavior) - thermal limit
MW 2x4 / N38

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

Classic neodymiums lose parameters above the temperature limit. Protect against heat – heat can permanently damage this product. With increasing heat, the magnet's capacity temporarily drops. Avoid using this product near heat sources higher than its working range. Too high temperature will result in permanent loss of magnetism.

*Important note: Temperature resistance is determined by both grade, and the Permeance Coefficient Pc. Thin magnets (low permeance coefficient) are more susceptible to demagnetization sooner than taller cylinders. Warning indicator in the table indicates permanent field degradation for this specific geometry.

Table 6: Magnet-Magnet interaction (repulsion) - field range
MW 2x4 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Strength (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	0.69 kg / 1.51 pounds 6 090 Gs	0.10 kg / 0.23 pounds 103 g / 1.0 N	N/A
1 mm	0.21 kg / 0.46 pounds 6 559 Gs	0.03 kg / 0.07 pounds 31 g / 0.3 N	0.19 kg / 0.41 pounds ~0 Gs
2 mm	0.06 kg / 0.12 pounds 3 391 Gs	0.01 kg / 0.02 pounds 8 g / 0.1 N	0.05 kg / 0.11 pounds ~0 Gs
3 mm	0.02 kg / 0.04 pounds 1 883 Gs	0.00 kg / 0.01 pounds 3 g / 0.0 N	0.02 kg / 0.03 pounds ~0 Gs
5 mm	0.00 kg / 0.01 pounds 743 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs
10 mm	0.00 kg / 0.00 pounds 165 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs
20 mm	0.00 kg / 0.00 pounds 30 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs
50 mm	0.00 kg / 0.00 pounds 3 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs
60 mm	0.00 kg / 0.00 pounds 2 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs
70 mm	0.00 kg / 0.00 pounds 1 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs
80 mm	0.00 kg / 0.00 pounds 1 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs
90 mm	0.00 kg / 0.00 pounds 0 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs
100 mm	0.00 kg / 0.00 pounds 0 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs

Two magnets interact from a much further distance than a magnet and sheet combination. The setup of two magnets generates a stronger field and a wider radius 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 pinch force is huge. The levitation is slightly lower than the connection force, but still significant.
*The magnetic induction for N-N configuration is approximately ~0 Gs in the exact middle of the gap (due to field cancellation).
* Results show sliding force of a pair of matching magnets (friction ~0.15 for Ni-Ni layer).

Table 7: Protective zones (electronics) - precautionary measures
MW 2x4 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	2.0 cm
Hearing aid	10 Gs (1.0 mT)	1.5 cm
Timepiece	20 Gs (2.0 mT)	1.0 cm
Mobile device	40 Gs (4.0 mT)	1.0 cm
Car key	50 Gs (5.0 mT)	1.0 cm
Payment card	400 Gs (40.0 mT)	0.5 cm
HDD hard drive	600 Gs (60.0 mT)	0.5 cm

A strong magnetic field poses a serious hazard to IT equipment and medical implants. These NdFeB products produce a field that destroys function of digital equipment. Remember: the invisible magnetic field penetrates the body and glass. Increased vigilance must be taken by people with hearing aids and drug dispensers. Also at risk are: mechanical watches, car keys, speakers, and screens. Do not bring the product near payment cards, hard drives, or sensitive navigation tools.

Table 8: Impact energy (cracking risk) - warning
MW 2x4 / N38

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

Magnetic elements are prone to chipping – a violent impact against metal causes immediate chipping. Watch the impact speed – a neodymium left loose speeds with massive force. Impact energy can destroy the magnet or dangerous crushing to skin. Hold the magnet firmly during installation so it doesn't hit violently against the steel surface. A contact at a velocity of dozens of km/h almost guarantees destruction of the magnet. Use safety goggles when handling with powerful specimens.

Table 9: Coating parameters (durability)
MW 2x4 / N38

Technical parameter	Value / Description
Coating type	[NiCuNi] Nickel
Layer structure	Nickel - Copper - Nickel
Layer thickness	10-20 µm
Salt spray test (SST) ?	24 h
Recommended environment	Indoors only (dry)

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: Electrical data (P_c)
MW 2x4 / N38

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

Total magnetic flux emitted by the pole surface. Key data when building generators and motors. P_c value defines the working geometry.

Table 11: Hydrostatics and buoyancy
MW 2x4 / N38

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

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

Contrary to myths, water does not block the magnetic field. Buoyancy helps in lifting finds.

1. Wall mount (shear)

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

2. Plate thickness effect

*Thin steel (e.g. computer case) severely limits the holding force.

3. Thermal stability

*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) = 1.21

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

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%

Ecology and recycling (GPSR)

recyclability (EoL)	100%
recycled raw materials	~10% (pre-cons)
carbon footprint	low / zredukowany
waste code (EWC)	16 02 16

Safety card (GPSR)

responsible entity

Dhit sp. z o.o.

ul. Kościuszki 6A, 05-850 Ożarów Mazowiecki

tel: +48 22 499 98 98 | e-mail: bok@dhit.pl

batch number/type

id: 010055-2026

Quick Unit Converter

Magnet pull force

Kilograms (kg)

Force (N)

Pounds (lbs)

Field Strength

Induction (Gs)

Induction (T)

Input a figure in a single slot to see the conversion for the other fields at once.

Check out also proposals

Product available Ships today (order by 14:00)

UI 45x13x6 [C321] / N38 - badge holder

2.40 ZŁ brutto / pcs

Product available Ships today (order by 14:00)

SM 32x275 [2xM8] / N52 - magnetic separator

897.90 ZŁ brutto / pcs

Product available Ships today (order by 14:00)

MPL 25x10x5 / N38 - lamellar magnet

4.66 ZŁ brutto / pcs

Product available Ships today (order by 14:00)

BM 380x180x70 [4x M8] - magnetic beam

4185.08 ZŁ brutto / pcs

The presented product is an exceptionally strong cylinder magnet, composed of durable NdFeB material, which, at dimensions of Ø2x4 mm, guarantees maximum efficiency. This specific item features a tolerance of ±0.1mm and industrial build quality, making it an excellent solution for professional engineers and designers. As a cylindrical magnet with significant force (approx. 0.09 kg), this product is available off-the-shelf from our European logistics center, ensuring quick order fulfillment. Additionally, its Ni-Cu-Ni coating secures it against corrosion in typical operating conditions, guaranteeing an aesthetic appearance and durability for years.

This model is created for building electric motors, advanced Hall effect sensors, and efficient filters, where maximum induction on a small surface counts. Thanks to the high power of 0.86 N with a weight of only 0.09 g, this cylindrical magnet is indispensable in miniature devices and wherever low weight is crucial.

Due to the brittleness of the NdFeB material, we absolutely advise against force-fitting (so-called press-fit), as this risks chipping the coating of this precision component. To ensure stability in industry, specialized industrial adhesives are used, which are safe for nickel and fill the gap, guaranteeing high repeatability of the connection.

Magnets NdFeB grade N38 are suitable for 90% 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 (Ø2x4), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard in continuous sale in our warehouse.

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

This cylinder is magnetized axially (along the height of 4 mm), which means that the N and S poles are located on the flat, circular surfaces. Thanks to this, the magnet can be easily glued into a hole and achieve a strong field on the front surface. On request, we can also produce versions magnetized diametrically if your project requires it.

Advantages as well as disadvantages of neodymium magnets.

Benefits

Apart from their notable magnetic energy, neodymium magnets have these key benefits:

They virtually do not lose strength, because even after ten years the performance loss is only ~1% (based on calculations),
They are extremely resistant to demagnetization induced by external magnetic fields,
The use of an aesthetic finish of noble metals (nickel, gold, silver) causes the element to look better,
The surface of neodymium magnets generates a concentrated magnetic field – this is a distinguishing feature,
Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their shape) at temperatures up to 230°C and above...
Considering the possibility of flexible shaping and customization to specialized requirements, neodymium magnets can be created in a variety of geometric configurations, which makes them more universal,
Wide application in high-tech industry – they are utilized in mass storage devices, brushless drives, medical devices, and other advanced devices.
Compactness – despite small sizes they generate large force, making them ideal for precision applications

Disadvantages

What to avoid - cons of neodymium magnets and ways of using them

They are fragile upon too strong impacts. To avoid cracks, it is worth protecting magnets in a protective case. Such protection not only shields the magnet but also improves its resistance to damage
Neodymium magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop of strength (a factor is the shape as well as dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are very resistant to heat
Magnets exposed to a humid environment can rust. Therefore when using outdoors, we suggest using water-impermeable magnets made of rubber, plastic or other material protecting against moisture
Limited ability of creating threads in the magnet and complex forms - recommended is casing - magnet mounting.
Health risk resulting from small fragments of magnets pose a threat, when accidentally swallowed, which becomes key in the aspect of protecting the youngest. Furthermore, small components of these magnets are able to disrupt the diagnostic process medical when they are in the body.
With budget limitations the cost of neodymium magnets is a challenge,

Holding force characteristics

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

Information about lifting capacity is the result of a measurement for optimal configuration, taking into account:

using a sheet made of low-carbon steel, functioning as a circuit closing element
possessing a massiveness of minimum 10 mm to ensure full flux closure
with an ideally smooth touching surface
without the slightest clearance between the magnet and steel
for force applied at a right angle (in the magnet axis)
at standard ambient temperature

Key elements affecting lifting force

During everyday use, the real power depends on many variables, presented from most significant:

Gap (between the magnet and the plate), as even a very small clearance (e.g. 0.5 mm) leads to a reduction in lifting capacity by up to 50% (this also applies to varnish, corrosion or debris).
Force direction – catalog parameter refers to detachment vertically. When slipping, the magnet exhibits significantly lower power (often approx. 20-30% of nominal force).
Base massiveness – too thin steel does not accept the full field, causing part of the power to be lost into the air.
Steel grade – the best choice is pure iron steel. Stainless steels may have worse magnetic properties.
Smoothness – full contact is possible only on polished steel. Rough texture create air cushions, reducing force.
Operating temperature – neodymium magnets have a sensitivity to temperature. When it is hot they lose power, and at low temperatures they can be stronger (up to a certain limit).

Lifting capacity was measured with the use of a polished steel plate of optimal thickness (min. 20 mm), under vertically applied force, whereas under attempts to slide the magnet the load capacity is reduced by as much as fivefold. Additionally, even a slight gap between the magnet’s surface and the plate lowers the load capacity.

Safe handling of NdFeB magnets

Magnetic media

Intense magnetic fields can corrupt files on credit cards, hard drives, and other magnetic media. Keep a distance of min. 10 cm.

Power loss in heat

Regular neodymium magnets (grade N) lose magnetization when the temperature goes above 80°C. Damage is permanent.

Avoid contact if allergic

Certain individuals suffer from a contact allergy to nickel, which is the common plating for NdFeB magnets. Prolonged contact may cause skin redness. We suggest use protective gloves.

Fragile material

Despite metallic appearance, the material is brittle and cannot withstand shocks. Do not hit, as the magnet may shatter into sharp, dangerous pieces.

Handling rules

Use magnets consciously. Their huge power can surprise even professionals. Stay alert and respect their force.

Keep away from electronics

Be aware: neodymium magnets produce a field that interferes with sensitive sensors. Keep a safe distance from your mobile, device, and navigation systems.

Medical interference

Warning for patients: Strong magnetic fields disrupt medical devices. Maintain minimum 30 cm distance or ask another person to handle the magnets.

Pinching danger

Big blocks can break fingers instantly. Do not put your hand betwixt two attracting surfaces.

Combustion hazard

Dust produced during cutting of magnets is self-igniting. Do not drill into magnets unless you are an expert.

No play value

Always keep magnets away from children. Risk of swallowing is significant, and the effects of magnets connecting inside the body are life-threatening.

Warning! More info about hazards in the article: Safety of working with magnets.

MW 2x4 / N38 - cylindrical magnet

Technical specification - MW 2x4 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Engineering simulation of the magnet - technical parameters

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

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

Table 3: Wall mounting (shearing) - behavior on slippery surfaces MW 2x4 / N38

Table 4: Material efficiency (saturation) - sheet metal selection MW 2x4 / N38

Table 5: Working in heat (material behavior) - thermal limit MW 2x4 / N38

Table 6: Magnet-Magnet interaction (repulsion) - field range MW 2x4 / N38

Table 7: Protective zones (electronics) - precautionary measures MW 2x4 / N38

Table 8: Impact energy (cracking risk) - warning MW 2x4 / N38

Table 9: Coating parameters (durability) MW 2x4 / N38

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

Table 11: Hydrostatics and buoyancy MW 2x4 / N38

1. Wall mount (shear)

2. Plate thickness effect

3. Thermal stability

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

Material specification

Ecology and recycling (GPSR)

Magnet pull force

Field Strength

Check out also proposals

UI 45x13x6 [C321] / N38 - badge holder

SM 32x275 [2xM8] / N52 - magnetic separator

MPL 25x10x5 / N38 - lamellar magnet

BM 380x180x70 [4x M8] - magnetic beam

Advantages as well as disadvantages of neodymium magnets.

Benefits

Disadvantages

Holding force characteristics

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

Key elements affecting lifting force

Safe handling of NdFeB magnets

Magnetic media

Power loss in heat

Avoid contact if allergic

Fragile material

Handling rules

Keep away from electronics

Medical interference

Pinching danger

Combustion hazard

No play value

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

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

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

Table 3: Wall mounting (shearing) - behavior on slippery surfaces
MW 2x4 / N38

Table 4: Material efficiency (saturation) - sheet metal selection
MW 2x4 / N38

Table 5: Working in heat (material behavior) - thermal limit
MW 2x4 / N38

Table 6: Magnet-Magnet interaction (repulsion) - field range
MW 2x4 / N38

Table 7: Protective zones (electronics) - precautionary measures
MW 2x4 / N38

Table 8: Impact energy (cracking risk) - warning
MW 2x4 / N38

Table 9: Coating parameters (durability)
MW 2x4 / N38

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

Table 11: Hydrostatics and buoyancy
MW 2x4 / N38