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MW 5x4 / 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 010089

GTIN/EAN: 5906301810889

5.00

Diameter Ø

5 mm [±0,1 mm]

Height

4 mm [±0,1 mm]

Weight

0.59 g

Magnetization Direction

↑ axial

Load capacity

0.84 kg / 8.26 N

Magnetic Induction

524.45 mT / 5244 Gs

Coating

[NiCuNi] Nickel

technical parameters »

0.369 ZŁ with VAT / pcs + price for transport

0.300 ZŁ net + 23% VAT / pcs

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Technical - MW 5x4 / N38 - cylindrical magnet

Specification / characteristics - MW 5x4 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010089
GTIN/EAN	5906301810889
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	5 mm [±0,1 mm]
Height	4 mm [±0,1 mm]
Weight	0.59 g
Magnetization Direction	↑ axial
Load capacity ~ ?	0.84 kg / 8.26 N
Magnetic Induction ~ ?	524.45 mT / 5244 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 5x4 / 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 modeling of the product - technical parameters

The following information represent the result of a engineering analysis. Results were calculated on algorithms for the material Nd₂Fe₁₄B. Actual conditions might slightly differ. Use these calculations as a reference point when designing systems.

Table 1: Static force (pull vs distance) - power drop
MW 5x4 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	5236 Gs 523.6 mT	0.84 kg / 1.85 pounds 840.0 g / 8.2 N	low risk
1 mm	3243 Gs 324.3 mT	0.32 kg / 0.71 pounds 322.1 g / 3.2 N	low risk
2 mm	1850 Gs 185.0 mT	0.10 kg / 0.23 pounds 104.8 g / 1.0 N	low risk
3 mm	1076 Gs 107.6 mT	0.04 kg / 0.08 pounds 35.5 g / 0.3 N	low risk
5 mm	428 Gs 42.8 mT	0.01 kg / 0.01 pounds 5.6 g / 0.1 N	low risk
10 mm	89 Gs 8.9 mT	0.00 kg / 0.00 pounds 0.2 g / 0.0 N	low risk
15 mm	31 Gs 3.1 mT	0.00 kg / 0.00 pounds 0.0 g / 0.0 N	low risk
20 mm	15 Gs 1.5 mT	0.00 kg / 0.00 pounds 0.0 g / 0.0 N	low risk
30 mm	5 Gs 0.5 mT	0.00 kg / 0.00 pounds 0.0 g / 0.0 N	low risk
50 mm	1 Gs 0.1 mT	0.00 kg / 0.00 pounds 0.0 g / 0.0 N	low risk

Grip strength decreases significantly with every mm of spacing. Note that every additional insulation layer (e.g., dirt, varnish, rust) strongly diminishes the holding power. Magnets work most effectively at the point of direct contact; air break kills the power. Notice how flashily the parameters fall, when the magnet does not touch flatly to the steel surface. When calculating the mounting, discard unnecessary gaps.

Table 2: Shear capacity (vertical surface)
MW 5x4 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	0.17 kg / 0.37 pounds 168.0 g / 1.6 N
1 mm	Stal (~0.2)	0.06 kg / 0.14 pounds 64.0 g / 0.6 N
2 mm	Stal (~0.2)	0.02 kg / 0.04 pounds 20.0 g / 0.2 N
3 mm	Stal (~0.2)	0.01 kg / 0.02 pounds 8.0 g / 0.1 N
5 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 2.0 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

The table below defines the estimated holding capacity sufficient to cause the sliding of the magnet downwards on a upright steel wall (assuming typical friction coefficient). The holding force is relative to the air gap between the magnet and the metal.

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces
MW 5x4 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	0.25 kg / 0.56 pounds 252.0 g / 2.5 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.17 kg / 0.37 pounds 168.0 g / 1.6 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.08 kg / 0.19 pounds 84.0 g / 0.8 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	0.42 kg / 0.93 pounds 420.0 g / 4.1 N

When placing a element on a upright surface (e.g., a fridge), it will only hold barely about 1/5 of its nominal power. Gravity and a low friction coefficient mean that magnets move down faster than they pop off the substrate. Planning a vertical fastening? Remember that the shear force is much weaker than the maximum static pull force. On a slippery surface, the element will slide down under a much lighter weight. Application of an anti-slip coating can effectively improve the result.

Table 4: Steel thickness (substrate influence) - power losses
MW 5x4 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.08 kg / 0.19 pounds 84.0 g / 0.8 N
1 mm	25%	0.21 kg / 0.46 pounds 210.0 g / 2.1 N
2 mm	50%	0.42 kg / 0.93 pounds 420.0 g / 4.1 N
3 mm	75%	0.63 kg / 1.39 pounds 630.0 g / 6.2 N
5 mm	100%	0.84 kg / 1.85 pounds 840.0 g / 8.2 N
10 mm	100%	0.84 kg / 1.85 pounds 840.0 g / 8.2 N
11 mm	100%	0.84 kg / 1.85 pounds 840.0 g / 8.2 N
12 mm	100%	0.84 kg / 1.85 pounds 840.0 g / 8.2 N

A too thin steel is not enough to absorb the full magnetic flux, which wastes potential of the holder. Should you install a neodymium to a weak sheet, the field will pass right through and the holding will be smaller. To achieve full efficiency of this magnet's potential, you need a suitably thick piece of metal. The saturation phenomenon causes that on delicate walls (e.g., appliance housings), the holder works worse. We advise picking the steel dimension based on the following data.

Table 5: Thermal stability (material behavior) - power drop
MW 5x4 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	0.84 kg / 1.85 pounds 840.0 g / 8.2 N	OK
40 °C	-2.2%	0.82 kg / 1.81 pounds 821.5 g / 8.1 N	OK
60 °C	-4.4%	0.80 kg / 1.77 pounds 803.0 g / 7.9 N	OK
80 °C	-6.6%	0.78 kg / 1.73 pounds 784.6 g / 7.7 N
100 °C	-28.8%	0.60 kg / 1.32 pounds 598.1 g / 5.9 N

Ordinary NdFeB products change their properties parameters past the thermal threshold. Avoid high temperatures – high temperature can permanently destroy this magnet. With increasing heat, the neodymium's capacity momentarily lowers. Do not use this product in hot environments higher than its safe range. Too high temperature will lead to irreversible degradation of magnetic properties.

*Technical advisory: Thermal stability is determined by both grade, but also on the magnet's shape. Low-profile magnets (pancake types) are more susceptible to demagnetization under lower heat stress than taller cylinders. Red status in the table indicates permanent field degradation for this specific geometry.

Table 6: Magnet-Magnet interaction (attraction) - forces in the system
MW 5x4 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	3.32 kg / 7.32 pounds 5 894 Gs	0.50 kg / 1.10 pounds 498 g / 4.9 N	N/A
1 mm	2.14 kg / 4.72 pounds 8 408 Gs	0.32 kg / 0.71 pounds 321 g / 3.1 N	1.93 kg / 4.24 pounds ~0 Gs
2 mm	1.27 kg / 2.81 pounds 6 486 Gs	0.19 kg / 0.42 pounds 191 g / 1.9 N	1.15 kg / 2.53 pounds ~0 Gs
3 mm	0.73 kg / 1.61 pounds 4 909 Gs	0.11 kg / 0.24 pounds 109 g / 1.1 N	0.66 kg / 1.45 pounds ~0 Gs
5 mm	0.24 kg / 0.53 pounds 2 805 Gs	0.04 kg / 0.08 pounds 36 g / 0.4 N	0.21 kg / 0.47 pounds ~0 Gs
10 mm	0.02 kg / 0.05 pounds 857 Gs	0.00 kg / 0.01 pounds 3 g / 0.0 N	0.02 kg / 0.04 pounds ~0 Gs
20 mm	0.00 kg / 0.00 pounds 177 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 16 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 9 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 6 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 4 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 3 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 2 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs

Two magnets attract each other from a much further distance than a magnet and sheet combination. The connection of magnet-to-magnet produces a massive flux and a wider radius of operation. Want to build a powerful holder? Apply two magnets instead of one magnet and a steel. Exercise caution that when bringing together two magnets, the pinch force is huge. The levitation is marginally weaker than the attraction, but still impressive.
*The magnetic induction in repulsion mode is approximately ~0 Gs at the midpoint of the gap (resulting from vector opposition).
Important: Figures refer to friction force of two identical magnets (friction coefficient ~0.15 for Ni-Ni layer).

Table 7: Protective zones (implants) - precautionary measures
MW 5x4 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	3.0 cm
Hearing aid	10 Gs (1.0 mT)	2.5 cm
Timepiece	20 Gs (2.0 mT)	2.0 cm
Mobile device	40 Gs (4.0 mT)	1.5 cm
Car key	50 Gs (5.0 mT)	1.5 cm
Payment card	400 Gs (40.0 mT)	1.0 cm
HDD hard drive	600 Gs (60.0 mT)	0.5 cm

A strong magnetic field poses a serious hazard to electronic devices and medical implants. These NdFeB products generate a field that prevents correct functioning of sensitive medical devices. Be aware: the invisible magnetic field penetrates the body and glass. Special caution must be exercised by people with hearing aids and drug dispensers. The risk also applies to: mechanical watches, car keys, membranes, and screens. Avoid contact with magnetic cards, hard drives, or precise measuring instruments.

Table 8: Dynamics (kinetic energy) - warning
MW 5x4 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	38.06 km/h (10.57 m/s)	0.03 J
30 mm	65.91 km/h (18.31 m/s)	0.10 J
50 mm	85.09 km/h (23.64 m/s)	0.16 J
100 mm	120.34 km/h (33.43 m/s)	0.33 J

Neodymium magnets are delicate – a violent impact against metal risks their cracking. Control the attraction moment – a magnet released freely turns into a projectile. Kinetic force can destroy the magnet or injury to skin. Be sure to control the product during installation so it doesn't hit violently against the metal. A contact at a velocity of dozens of km/h ends with a crack of the magnet. Use safety goggles when working with powerful specimens.

Table 9: Surface protection spec
MW 5x4 / 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. The silver nickel coating also serves an aesthetic function but is not fully waterproof.

Table 10: Construction data (Flux)
MW 5x4 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	1 046 Mx	10.5 µWb
P_c Coefficient	0.79	High (Stable)

Flux value passing through the pole surface. Essential parameter in coil applications and motors. The P_c coefficient defines the magnet's operating point.

Table 11: Submerged application
MW 5x4 / N38

Environment	Effective steel pull	Effect
Air (land)	0.84 kg	Standard
Water (riverbed)	0.96 kg (+0.12 kg buoyancy gain)	+14.5%

Corrosion warning: Remember to wipe the magnet thoroughly after removing it from water and apply a protective layer (e.g., oil) to avoid corrosion.

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

1. Wall mount (shear)

*Note: On a vertical surface, the magnet retains only a fraction of its perpendicular strength.

2. Steel saturation

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

3. Power loss vs temp

*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) = 0.79

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

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: 010089-2026

Measurement Calculator

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The presented product is an incredibly powerful cylinder magnet, produced from modern NdFeB material, which, at dimensions of Ø5x4 mm, guarantees maximum efficiency. The MW 5x4 / N38 component features an accuracy of ±0.1mm and industrial build quality, making it an ideal solution for the most demanding engineers and designers. As a magnetic rod with impressive force (approx. 0.84 kg), this product is in stock from our European logistics center, ensuring quick order fulfillment. Moreover, its triple-layer Ni-Cu-Ni coating effectively protects it against corrosion in standard operating conditions, ensuring an aesthetic appearance and durability for years.

It successfully proves itself in DIY projects, advanced automation, and broadly understood industry, serving as a fastening or actuating element. Thanks to the high power of 8.26 N with a weight of only 0.59 g, this rod is indispensable in miniature devices and wherever low weight is crucial.

Due to the brittleness of the NdFeB material, you must not use force-fitting (so-called press-fit), as this risks immediate cracking of this professional component. To ensure stability in automation, anaerobic resins are used, which are safe for nickel and fill the gap, guaranteeing durability of the connection.

Grade N38 is the most frequently chosen standard for professional neodymium magnets, offering an optimal price-to-power ratio and high resistance to demagnetization. If you need even stronger magnets in the same volume (Ø5x4), 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 Ø5x4 mm, which, at a weight of 0.59 g, makes it an element with impressive magnetic energy density. The key parameter here is the holding force amounting to approximately 0.84 kg (force ~8.26 N), which, with such compact dimensions, proves the high grade of the NdFeB material. The product has a [NiCuNi] coating, which secures it against external factors, giving it an aesthetic, silvery shine.

This rod magnet 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

In addition to their magnetic capacity, neodymium magnets provide the following advantages:

Their power is maintained, and after approximately ten years it decreases only by ~1% (theoretically),
They have excellent resistance to magnetism drop due to external fields,
Thanks to the shimmering finish, the surface of Ni-Cu-Ni, gold-plated, or silver gives an visually attractive appearance,
Neodymium magnets generate maximum magnetic induction on a small area, which ensures high operational effectiveness,
Due to their durability and thermal resistance, neodymium magnets are capable of operate (depending on the form) even at high temperatures reaching 230°C or more...
Considering the option of accurate forming and customization to individualized projects, magnetic components can be manufactured in a broad palette of forms and dimensions, which increases their versatility,
Fundamental importance in innovative solutions – they are commonly used in hard drives, electromotive mechanisms, precision medical tools, as well as industrial machines.
Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in small dimensions, which makes them useful in compact constructions

Disadvantages

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 in special housings. Such protection not only protects the magnet but also improves 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 advise using waterproof magnets e.g. in rubber, plastic
We recommend a housing - magnetic mount, due to difficulties in producing threads inside the magnet and complicated shapes.
Possible danger related to microscopic parts of magnets pose a threat, in case of ingestion, which is particularly important in the context of child health protection. Furthermore, small components of these devices can be problematic in diagnostics medical after entering the body.
Higher cost of purchase is one of the disadvantages compared to ceramic magnets, especially in budget applications

Holding force characteristics

Maximum magnetic pulling force – what it depends on?

Information about lifting capacity was determined for the most favorable conditions, assuming:

on a block made of structural steel, optimally conducting the magnetic flux
with a thickness minimum 10 mm
with an ground touching surface
without any clearance between the magnet and steel
under axial force vector (90-degree angle)
at ambient temperature room level

Lifting capacity in practice – influencing factors

Real force is affected by working environment parameters, mainly (from priority):

Gap (betwixt the magnet and the metal), since even a very small distance (e.g. 0.5 mm) results in a decrease in force by up to 50% (this also applies to paint, rust or dirt).
Force direction – catalog parameter refers to detachment vertically. When applying parallel force, the magnet holds much less (often approx. 20-30% of maximum force).
Steel thickness – insufficiently thick steel causes magnetic saturation, causing part of the power to be lost to the other side.
Steel type – low-carbon steel attracts best. Alloy steels lower magnetic properties and holding force.
Surface condition – ground elements guarantee perfect abutment, which increases force. Uneven metal reduce efficiency.
Operating temperature – neodymium magnets have a sensitivity to temperature. When it is hot they lose power, and in frost gain strength (up to a certain limit).

Lifting capacity testing was performed on plates with a smooth surface of suitable thickness, under a perpendicular pulling force, however under shearing force the holding force is lower. In addition, even a small distance between the magnet and the plate lowers the load capacity.

Precautions when working with NdFeB magnets

Fragile material

Despite metallic appearance, the material is brittle and not impact-resistant. Avoid impacts, as the magnet may shatter into sharp, dangerous pieces.

Dust explosion hazard

Fire warning: Rare earth powder is highly flammable. Do not process magnets in home conditions as this risks ignition.

Hand protection

Risk of injury: The pulling power is so immense that it can result in hematomas, crushing, and even bone fractures. Protective gloves are recommended.

Product not for children

NdFeB magnets are not intended for children. Accidental ingestion of multiple magnets may result in them attracting across intestines, which poses a direct threat to life and requires urgent medical intervention.

Do not overheat magnets

Do not overheat. Neodymium magnets are sensitive to heat. If you need operation above 80°C, ask us about special high-temperature series (H, SH, UH).

Compass and GPS

GPS units and mobile phones are extremely susceptible to magnetic fields. Direct contact with a strong magnet can ruin the internal compass in your phone.

Medical implants

Warning for patients: Strong magnetic fields affect electronics. Maintain minimum 30 cm distance or request help to handle the magnets.

Electronic devices

Intense magnetic fields can erase data on payment cards, HDDs, and storage devices. Stay away of min. 10 cm.

Respect the power

Exercise caution. Neodymium magnets attract from a distance and snap with huge force, often quicker than you can move away.

Avoid contact if allergic

Certain individuals suffer from a contact allergy to nickel, which is the common plating for neodymium magnets. Prolonged contact might lead to an allergic reaction. We strongly advise wear safety gloves.

Security! Want to know more? Read our article: Are neodymium magnets dangerous?

MW 5x4 / N38 - cylindrical magnet

Technical - MW 5x4 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Technical modeling of the product - technical parameters

Table 1: Static force (pull vs distance) - power drop MW 5x4 / N38

Table 2: Shear capacity (vertical surface) MW 5x4 / N38

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces MW 5x4 / N38

Table 4: Steel thickness (substrate influence) - power losses MW 5x4 / N38

Table 5: Thermal stability (material behavior) - power drop MW 5x4 / N38

Table 6: Magnet-Magnet interaction (attraction) - forces in the system MW 5x4 / N38

Table 7: Protective zones (implants) - precautionary measures MW 5x4 / N38

Table 8: Dynamics (kinetic energy) - warning MW 5x4 / N38

Table 9: Surface protection spec MW 5x4 / N38

Table 10: Construction data (Flux) MW 5x4 / N38

Table 11: Submerged application MW 5x4 / N38

1. Wall mount (shear)

2. Steel saturation

3. Power loss vs temp

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

Material specification

Environmental data

Magnet pull force

Magnetic Induction

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UMP 107x40 [M8+M10] GW F 400 kg / N38 - search holder

SM 25x100 [2xM8] / N52 - magnetic separator

Advantages as well as disadvantages of neodymium magnets.

Benefits

Disadvantages

Holding force characteristics

Maximum magnetic pulling force – what it depends on?

Lifting capacity in practice – influencing factors

Precautions when working with NdFeB magnets

Fragile material

Dust explosion hazard

Hand protection

Product not for children

Do not overheat magnets

Compass and GPS

Medical implants

Electronic devices

Respect the power

Avoid contact if allergic

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (pull vs distance) - power drop
MW 5x4 / N38

Table 2: Shear capacity (vertical surface)
MW 5x4 / N38

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces
MW 5x4 / N38

Table 4: Steel thickness (substrate influence) - power losses
MW 5x4 / N38

Table 5: Thermal stability (material behavior) - power drop
MW 5x4 / N38

Table 6: Magnet-Magnet interaction (attraction) - forces in the system
MW 5x4 / N38

Table 7: Protective zones (implants) - precautionary measures
MW 5x4 / N38

Table 8: Dynamics (kinetic energy) - warning
MW 5x4 / N38

Table 9: Surface protection spec
MW 5x4 / N38

Table 10: Construction data (Flux)
MW 5x4 / N38

Table 11: Submerged application
MW 5x4 / N38