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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

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0.209 ZŁ with VAT / pcs + price for transport

0.1700 ZŁ net + 23% VAT / pcs

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Parameters and appearance of a neodymium magnet can be analyzed on our magnetic mass calculator.

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Detailed 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 product - data

Presented information are the result of a mathematical simulation. Results were calculated on models for the material Nd₂Fe₁₄B. Real-world conditions may differ. Use these calculations as a reference point for designers.

Table 1: Static pull force (force vs gap) - 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	low risk
1 mm	1696 Gs 169.6 mT	0.01 kg / 0.02 pounds 7.3 g / 0.1 N	low risk
2 mm	570 Gs 57.0 mT	0.00 kg / 0.00 pounds 0.8 g / 0.0 N	low risk
3 mm	256 Gs 25.6 mT	0.00 kg / 0.00 pounds 0.2 g / 0.0 N	low risk
5 mm	82 Gs 8.2 mT	0.00 kg / 0.00 pounds 0.0 g / 0.0 N	low risk
10 mm	15 Gs 1.5 mT	0.00 kg / 0.00 pounds 0.0 g / 0.0 N	low risk
15 mm	5 Gs 0.5 mT	0.00 kg / 0.00 pounds 0.0 g / 0.0 N	low risk
20 mm	2 Gs 0.2 mT	0.00 kg / 0.00 pounds 0.0 g / 0.0 N	low risk
30 mm	1 Gs 0.1 mT	0.00 kg / 0.00 pounds 0.0 g / 0.0 N	low risk
50 mm	0 Gs 0.0 mT	0.00 kg / 0.00 pounds 0.0 g / 0.0 N	low risk

Pulling power weakens drastically per each millimeter of gap. Remember that even the smallest gap (e.g., dirt, paint, veneer) noticeably reduces the pull force. Neodymiums hold optimally in perfect adhesion; distance drastically cuts the force. Notice how quickly the pull force plummet, when the product does not adhere flatly to the steel surface. When planning the assembly, eliminate redundant distances.

Table 2: Shear hold (vertical surface)
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 calculates the theoretical holding capacity necessary to cause the shifting of the magnet down on a upright steel wall (assuming typical friction). The holding force depends on the air gap between the magnet and the surface.

Table 3: Vertical assembly (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 hanging a holder on a upright plane (e.g., a car body), it will only hold just approx. 20%-30% of its nominal power. Gravity and a weak degree of grip influence the fact that products move down easier than they pull off. Planning a wall mount? Remember that the sliding force is much weaker than the perpendicular breakaway force. On a painted metal, the holder will give way down under a much lighter weight. Application of an anti-slip layer can significantly raise the stability.

Table 4: Material efficiency (saturation) - power losses
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 take in the entire magnetic field, which squanders power of the magnet. Should you attach a powerful product to a weak sheet, the magnetism will pass right through and the holding will be smaller. To achieve 100% of this magnet's power, you need a suitably thick backing of metal. The saturation phenomenon means that on delicate walls (e.g., thin profiles), the magnet shows lower pull force. We recommend selecting the steel dimension from these parameters.

Table 5: Thermal stability (stability) - resistance threshold
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

Standard neodymium magnets irreversibly lose strength after exceeding the maximum temperature. Avoid high temperatures – excessive heat can permanently damage this product. As the temperature rises, the neodymium's capacity momentarily lowers. Do not use this product close to ovens higher than its working range. Exceeding the critical threshold will cause permanent loss of magnetic properties.

*Important note: Thermal stability 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 (repulsion) - forces in the system
MW 2x4 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Force (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 setup. The setup of two magnets generates a stronger field and a wider radius of operation. Designing a powerful holder? Use a pair of magnets instead of one magnet and a striker plate. Remember that when connecting a pair of magnets, the collision energy is massive. The repulsion force is a bit weaker than the attraction, but still significant.
*The magnetic induction for N-N configuration reaches ~0 Gs in the exact middle between the magnets (caused by magnetic field nullification).
Attention: Estimates demonstrate sliding force of a pair of identical neodymium magnets (friction ~0.15 for Ni-Ni layer).

Table 7: Protective zones (implants) - 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
Mechanical watch	20 Gs (2.0 mT)	1.0 cm
Phone / Smartphone	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

Extremely neodym field is a serious hazard to IT equipment and medical implants. These NdFeB products produce a field that disrupts operation of sensitive medical devices. Be aware: the unseen radiation passes through tissues and plastic. Increased vigilance must be taken by people with cochlear implants and drug dispensers. Also at risk are: automatic timepieces, remotes, speakers, and displays. Do not place the magnet near cards, hard drives, or sensitive navigation tools.

Table 8: Collisions (kinetic energy) - 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 very brittle – a collision with steel can result in shattering. Pay attention to connection velocity – a neodymium left loose turns into a projectile. Kinetic force can destroy the magnet or dangerous crushing to fingers. Be sure to control the product during bringing near metal so it doesn't hit violently against the metal. A contact at a velocity of dozens of km/h means shattering of the neodymium. Wear eye protection when handling with powerful specimens.

Table 9: Corrosion resistance
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. Improper coating selection is the most common cause of magnet failure over time.

Table 10: Electrical data (Flux)
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 passing through the magnet pole. Essential parameter for generator designers and motors. P_c value determines the working geometry.

Table 11: Underwater work (magnet fishing)
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%

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

Contrary to myths, water does not block the magnetic field. Note: for permanent underwater work, we recommend magnets with an anti-corrosive (epoxy) coating.

1. Shear force

*Warning: On a vertical surface, the magnet holds merely approx. 20-30% of its max power.

2. Steel thickness impact

*Thin metal sheet (e.g. computer case) severely reduces the holding force.

3. Power loss vs temp

*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) = 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.

Engineering data and GPSR

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%

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: 010055-2026

Measurement Calculator

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The offered product is an incredibly powerful rod magnet, made from advanced NdFeB material, which, at dimensions of Ø2x4 mm, guarantees maximum efficiency. The MW 2x4 / N38 model is characterized by a tolerance of ±0.1mm and professional build quality, making it an ideal solution for professional engineers and designers. As a magnetic rod with significant force (approx. 0.09 kg), this product is in stock from our warehouse in Poland, ensuring quick order fulfillment. Additionally, its triple-layer 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 electric motors, advanced Hall effect sensors, and efficient filters, where field concentration on a small surface counts. Thanks to the pull force of 0.86 N with a weight of only 0.09 g, this rod is indispensable in electronics 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., 2.1 mm) using two-component epoxy glues. To ensure stability in automation, anaerobic resins are used, which are safe for nickel and fill the gap, guaranteeing high repeatability of the connection.

Grade N38 is the most frequently chosen standard for industrial neodymium magnets, offering an optimal price-to-power ratio and high resistance to demagnetization. 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 value of 0.86 N means that the magnet is capable of holding a weight many times exceeding its own mass of 0.09 g. 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 2 mm. Such an arrangement is standard when connecting magnets in stacks (e.g., in filters) or when mounting in sockets at the bottom of a hole. On request, we can also produce versions magnetized diametrically if your project requires it.

Pros and cons of rare earth magnets.

Benefits

Besides their high retention, neodymium magnets are valued for these benefits:

They do not lose magnetism, even after around ten years – the decrease in power is only ~1% (theoretically),
They feature excellent resistance to magnetic field loss due to external magnetic sources,
The use of an refined layer of noble metals (nickel, gold, silver) causes the element to present itself better,
Magnets are characterized by extremely high magnetic induction on the outer side,
Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and can function (depending on the form) even at a temperature of 230°C or more...
Due to the option of flexible molding and customization to unique requirements, NdFeB magnets can be produced in a broad palette of geometric configurations, which makes them more universal,
Universal use in advanced technology sectors – they are commonly used in magnetic memories, electric motors, medical devices, also multitasking production systems.
Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in small dimensions, which allows their use in miniature devices

Weaknesses

Problematic aspects of neodymium magnets and ways of using them

They are fragile upon too strong impacts. To avoid cracks, it is worth securing magnets using a steel holder. Such protection not only protects the magnet but also increases its resistance to damage
Neodymium magnets lose power when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop of power (a factor is the shape and 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
Due to the susceptibility of magnets to corrosion in a humid environment, we suggest using waterproof magnets made of rubber, plastic or other material resistant to moisture, in case of application outdoors
Due to limitations in creating threads and complicated shapes in magnets, we recommend using a housing - magnetic mount.
Potential hazard resulting from small fragments of magnets are risky, when accidentally swallowed, which is particularly important in the context of child safety. Furthermore, tiny parts of these devices are able to complicate diagnosis medical in case of swallowing.
Higher cost of purchase is one of the disadvantages compared to ceramic magnets, especially in budget applications

Lifting parameters

Optimal lifting capacity of a neodymium magnet – what it depends on?

Holding force of 0.09 kg is a theoretical maximum value conducted under the following configuration:

using a sheet made of low-carbon steel, acting as a circuit closing element
possessing a thickness of at least 10 mm to avoid saturation
with a surface free of scratches
under conditions of no distance (metal-to-metal)
during pulling in a direction perpendicular to the plane
at conditions approx. 20°C

Practical aspects of lifting capacity – factors

It is worth knowing that the magnet holding may be lower subject to the following factors, starting with the most relevant:

Clearance – existence of foreign body (paint, dirt, gap) interrupts the magnetic circuit, which reduces capacity steeply (even by 50% at 0.5 mm).
Direction of force – highest force is available only during perpendicular pulling. The resistance to sliding of the magnet along the surface is standardly several times smaller (approx. 1/5 of the lifting capacity).
Substrate thickness – to utilize 100% power, the steel must be sufficiently thick. Thin sheet restricts the lifting capacity (the magnet "punches through" it).
Steel grade – the best choice is high-permeability steel. Stainless steels may generate lower lifting capacity.
Smoothness – ideal contact is obtained only on polished steel. Rough texture create air cushions, weakening the magnet.
Temperature influence – hot environment weakens pulling force. Exceeding the limit temperature can permanently demagnetize the magnet.

Lifting capacity testing was conducted on a smooth plate of suitable thickness, under perpendicular forces, however under parallel forces the load capacity is reduced by as much as 5 times. In addition, even a slight gap between the magnet and the plate decreases the holding force.

H&S for magnets

Protective goggles

Beware of splinters. Magnets can fracture upon violent connection, launching sharp fragments into the air. Eye protection is mandatory.

Adults only

These products are not intended for children. Eating a few magnets can lead to them connecting inside the digestive tract, which poses a severe health hazard and necessitates immediate surgery.

Magnetic interference

An intense magnetic field negatively affects the functioning of compasses in smartphones and GPS navigation. Do not bring magnets close to a smartphone to avoid damaging the sensors.

Safe operation

Before use, read the rules. Uncontrolled attraction can destroy the magnet or hurt your hand. Be predictive.

Warning for allergy sufferers

Certain individuals have a contact allergy to nickel, which is the common plating for neodymium magnets. Frequent touching may cause skin redness. We recommend wear safety gloves.

Do not drill into magnets

Machining of NdFeB material poses a fire hazard. Neodymium dust reacts violently with oxygen and is hard to extinguish.

Data carriers

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

Physical harm

Big blocks can smash fingers instantly. Under no circumstances place your hand betwixt two strong magnets.

Warning for heart patients

Warning for patients: Powerful magnets disrupt medical devices. Keep minimum 30 cm distance or ask another person to work with the magnets.

Demagnetization risk

Watch the temperature. Exposing the magnet above 80 degrees Celsius will permanently weaken its magnetic structure and strength.

Attention! More info about risks in the article: Magnet Safety Guide.

MW 2x4 / N38 - cylindrical magnet

Detailed 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 product - data

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

Table 2: Shear hold (vertical surface) MW 2x4 / N38

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

Table 4: Material efficiency (saturation) - power losses MW 2x4 / N38

Table 5: Thermal stability (stability) - resistance threshold MW 2x4 / N38

Table 6: Magnet-Magnet interaction (repulsion) - forces in the system MW 2x4 / N38

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

Table 8: Collisions (kinetic energy) - warning MW 2x4 / N38

Table 9: Corrosion resistance MW 2x4 / N38

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

Table 11: Underwater work (magnet fishing) MW 2x4 / N38

1. Shear force

2. Steel thickness impact

3. Power loss vs temp

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

Elemental analysis

Sustainability

Magnet pull force

Magnetic Field

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Pros and cons of rare earth magnets.

Benefits

Weaknesses

Lifting parameters

Optimal lifting capacity of a neodymium magnet – what it depends on?

Practical aspects of lifting capacity – factors

H&S for magnets

Protective goggles

Adults only

Magnetic interference

Safe operation

Warning for allergy sufferers

Do not drill into magnets

Data carriers

Physical harm

Warning for heart patients

Demagnetization risk

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

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

Table 2: Shear hold (vertical surface)
MW 2x4 / N38

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

Table 4: Material efficiency (saturation) - power losses
MW 2x4 / N38

Table 5: Thermal stability (stability) - resistance threshold
MW 2x4 / N38

Table 6: Magnet-Magnet interaction (repulsion) - forces in the system
MW 2x4 / N38

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

Table 8: Collisions (kinetic energy) - warning
MW 2x4 / N38

Table 9: Corrosion resistance
MW 2x4 / N38

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

Table 11: Underwater work (magnet fishing)
MW 2x4 / N38