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MW 5x30 / 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 010088

GTIN/EAN: 5906301810872

5.00

Diameter Ø

5 mm [±0,1 mm]

Height

30 mm [±0,1 mm]

Weight

4.42 g

Magnetization Direction

↑ axial

Load capacity

0.45 kg / 4.40 N

Magnetic Induction

616.32 mT / 6163 Gs

Coating

[NiCuNi] Nickel

technical specifications »

3.57 ZŁ with VAT / pcs + price for transport

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Product card - MW 5x30 / N38 - cylindrical magnet

Specification / characteristics - MW 5x30 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010088
GTIN/EAN	5906301810872
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	30 mm [±0,1 mm]
Weight	4.42 g
Magnetization Direction	↑ axial
Load capacity ~ ?	0.45 kg / 4.40 N
Magnetic Induction ~ ?	616.32 mT / 6163 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 5x30 / 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 product - data

These data represent the result of a physical simulation. Values rely on models for the material Nd₂Fe₁₄B. Real-world parameters might slightly differ. Please consider these data as a preliminary roadmap when designing systems.

Table 1: Static force (force vs distance) - power drop
MW 5x30 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	6154 Gs 615.4 mT	0.45 kg / 0.99 pounds 450.0 g / 4.4 N	weak grip
1 mm	3877 Gs 387.7 mT	0.18 kg / 0.39 pounds 178.6 g / 1.8 N	weak grip
2 mm	2308 Gs 230.8 mT	0.06 kg / 0.14 pounds 63.3 g / 0.6 N	weak grip
3 mm	1419 Gs 141.9 mT	0.02 kg / 0.05 pounds 23.9 g / 0.2 N	weak grip
5 mm	639 Gs 63.9 mT	0.00 kg / 0.01 pounds 4.8 g / 0.0 N	weak grip
10 mm	173 Gs 17.3 mT	0.00 kg / 0.00 pounds 0.4 g / 0.0 N	weak grip
15 mm	75 Gs 7.5 mT	0.00 kg / 0.00 pounds 0.1 g / 0.0 N	weak grip
20 mm	40 Gs 4.0 mT	0.00 kg / 0.00 pounds 0.0 g / 0.0 N	weak grip
30 mm	16 Gs 1.6 mT	0.00 kg / 0.00 pounds 0.0 g / 0.0 N	weak grip
50 mm	5 Gs 0.5 mT	0.00 kg / 0.00 pounds 0.0 g / 0.0 N	weak grip

Pulling power decreases sharply with every mm of spacing. Remember that every additional insulation layer (e.g., dirt, paint, dust) significantly weakens the grip. Magnets work strongest in perfect adhesion; air break drastically cuts the power. Analyze how flashily the pull force plummet, when the magnet does not adhere tightly to the metal substrate. When designing the mounting, eliminate additional spacers.

Table 2: Shear load (wall)
MW 5x30 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	0.09 kg / 0.20 pounds 90.0 g / 0.9 N
1 mm	Stal (~0.2)	0.04 kg / 0.08 pounds 36.0 g / 0.4 N
2 mm	Stal (~0.2)	0.01 kg / 0.03 pounds 12.0 g / 0.1 N
3 mm	Stal (~0.2)	0.00 kg / 0.01 pounds 4.0 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

The table below defines the approximate weight limit necessary to cause the sliding of the magnet vertically on a vertical steel wall (considering typical friction). The holding force is a function of the gap size between the magnet and the surface.

Table 3: Vertical assembly (sliding) - vertical pull
MW 5x30 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	0.14 kg / 0.30 pounds 135.0 g / 1.3 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.09 kg / 0.20 pounds 90.0 g / 0.9 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.05 kg / 0.10 pounds 45.0 g / 0.4 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	0.23 kg / 0.50 pounds 225.0 g / 2.2 N

When mounting a magnet on a upright plane (e.g., a board), it will maintain just about 20%-30% of its nominal power. Gravitational force and a weak degree of grip cause that holders move down easier than they pull off. Planning a wall mount? Consider that the sliding force is noticeably lower than the maximum static pull force. On a slippery surface, the magnet will give way down under a much lighter load. Utilizing a rubberized layer can drastically improve the result.

Table 4: Steel thickness (substrate influence) - power losses
MW 5x30 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.05 kg / 0.10 pounds 45.0 g / 0.4 N
1 mm	25%	0.11 kg / 0.25 pounds 112.5 g / 1.1 N
2 mm	50%	0.23 kg / 0.50 pounds 225.0 g / 2.2 N
3 mm	75%	0.34 kg / 0.74 pounds 337.5 g / 3.3 N
5 mm	100%	0.45 kg / 0.99 pounds 450.0 g / 4.4 N
10 mm	100%	0.45 kg / 0.99 pounds 450.0 g / 4.4 N
11 mm	100%	0.45 kg / 0.99 pounds 450.0 g / 4.4 N
12 mm	100%	0.45 kg / 0.99 pounds 450.0 g / 4.4 N

A thin sheet cannot conduct the entire magnetic field, which wastes potential of the magnet. If you install a neodymium to a thin surface, the field will pass right through and the holding will be smaller. To utilize 100% of this magnet's potential, you require a sufficiently solid backing of steel. The saturation effect causes that on sheet metal structures (e.g., thin profiles), the holder shows lower pull force. We suggest choosing the steel dimension according to the table below.

Table 5: Thermal stability (stability) - thermal limit
MW 5x30 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	0.45 kg / 0.99 pounds 450.0 g / 4.4 N	OK
40 °C	-2.2%	0.44 kg / 0.97 pounds 440.1 g / 4.3 N	OK
60 °C	-4.4%	0.43 kg / 0.95 pounds 430.2 g / 4.2 N	OK
80 °C	-6.6%	0.42 kg / 0.93 pounds 420.3 g / 4.1 N
100 °C	-28.8%	0.32 kg / 0.71 pounds 320.4 g / 3.1 N

Classic neodymiums lose parameters above the temperature limit. Watch out for overheating – excessive heat can irreversibly damage this magnet. As the temperature rises, the neodymium's force momentarily decreases. Avoid using this magnet close to heaters exceeding its safe range. Ignoring the limit will lead to permanent loss of magnetism.

*Engineering note: Heat tolerance depends not only on the material grade, and the Permeance Coefficient Pc. Flat magnets (low Pc) may lose charge permanently under lower heat stress than long magnets. Red status in the table points to a risk of irreversible loss for this particular item.

Table 6: Two magnets (attraction) - field collision
MW 5x30 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Sliding Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	4.58 kg / 10.11 pounds 6 170 Gs	0.69 kg / 1.52 pounds 688 g / 6.7 N	N/A
1 mm	2.98 kg / 6.57 pounds 9 927 Gs	0.45 kg / 0.99 pounds 447 g / 4.4 N	2.68 kg / 5.92 pounds ~0 Gs
2 mm	1.82 kg / 4.01 pounds 7 755 Gs	0.27 kg / 0.60 pounds 273 g / 2.7 N	1.64 kg / 3.61 pounds ~0 Gs
3 mm	1.08 kg / 2.39 pounds 5 981 Gs	0.16 kg / 0.36 pounds 162 g / 1.6 N	0.97 kg / 2.15 pounds ~0 Gs
5 mm	0.39 kg / 0.86 pounds 3 595 Gs	0.06 kg / 0.13 pounds 59 g / 0.6 N	0.35 kg / 0.78 pounds ~0 Gs
10 mm	0.05 kg / 0.11 pounds 1 278 Gs	0.01 kg / 0.02 pounds 7 g / 0.1 N	0.04 kg / 0.10 pounds ~0 Gs
20 mm	0.00 kg / 0.01 pounds 346 Gs	0.00 kg / 0.00 pounds 1 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs
50 mm	0.00 kg / 0.00 pounds 49 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 32 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 22 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 16 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 12 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 9 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs

Two strong neodymiums interact from a significantly greater distance than a magnet and steel setup. The setup of two magnets produces a massive flux and a further horizon of performance. Planning to create a solid fastener? Use a pair of magnets instead of a neodymium and a steel. Exercise caution that when connecting a pair of magnets, the collision energy is extreme. The levitation is slightly lower than the attraction, but still significant.
*Field value for N-N configuration reaches ~0 Gs at the geometric center of the gap (due to field cancellation).
Important: Estimates refer to sliding force of two identical magnets (friction coefficient ~0.15 for Ni-Ni layer).

Table 7: Hazards (electronics) - precautionary measures
MW 5x30 / N38

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

Extremely neodym field is a large risk to electronics as well as medical implants. These neodymiums produce a field that disrupts operation of sensitive medical devices. Be aware: the invisible magnetic field penetrates the body and housings. Special caution must be exercised by people with hearing aids and insulin pumps. Also at risk are: mechanical watches, car keys, membranes, and screens. Do not place the magnet near cards, hard drives, or sensitive navigation tools.

Table 8: Impact energy (kinetic energy) - collision effects
MW 5x30 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	10.18 km/h (2.83 m/s)	0.02 J
30 mm	17.63 km/h (4.90 m/s)	0.05 J
50 mm	22.75 km/h (6.32 m/s)	0.09 J
100 mm	32.18 km/h (8.94 m/s)	0.18 J

Neodymium magnets are prone to chipping – a strong collision with metal risks their cracking. Watch the impact speed – a magnet released freely turns into a projectile. Impact energy can trigger coating fragments or dangerous crushing to skin. Hold the magnet firmly during bringing near metal so it doesn't hit violently against the metal. A collision at high speed means shattering of the magnet. Use safety goggles when handling with powerful specimens.

Table 9: Surface protection spec
MW 5x30 / N38

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

The following table defines the conditions under which this product can be safely used. Improper coating selection is the most common cause of magnet failure over time.

Table 10: Construction data (Flux)
MW 5x30 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	1 468 Mx	14.7 µWb
P_c Coefficient	1.59	High (Stable)

Flux value passing through the pole surface. Essential parameter when building generators and motors. The P_c coefficient determines the working geometry.

Table 11: Hydrostatics and buoyancy
MW 5x30 / N38

Environment	Effective steel pull	Effect
Air (land)	0.45 kg	Standard
Water (riverbed)	0.52 kg (+0.07 kg buoyancy gain)	+14.5%

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

1. Sliding resistance

*Warning: On a vertical wall, the magnet holds merely a fraction of its max power.

2. Steel saturation

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

3. Thermal stability

*For standard magnets, the max working temp is 80°C.

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 1.59

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.

Engineering data and GPSR

Chemical composition

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: 010088-2026

Measurement Calculator

Magnet pull force

Force in kg

Force (N)

Force in lbs

Field Strength

Induction (T)

Insert your figure into a field, to see the remaining units change automatically.

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WM 34.5x24.3x17 / N38 - magnetic hanger

4.99 ZŁ brutto / pcs

The presented product is an incredibly powerful cylinder magnet, composed of modern NdFeB material, which, with dimensions of Ø5x30 mm, guarantees optimal power. The MW 5x30 / N38 model is characterized by high dimensional repeatability and industrial build quality, making it an ideal solution for the most demanding engineers and designers. As a magnetic rod with impressive force (approx. 0.45 kg), this product is in stock from our European logistics center, ensuring lightning-fast order fulfillment. Moreover, its triple-layer Ni-Cu-Ni coating effectively protects it against corrosion in typical operating conditions, ensuring an aesthetic appearance and durability for years.

It finds application in modeling, advanced automation, and broadly understood industry, serving as a positioning or actuating element. Thanks to the pull force of 4.40 N with a weight of only 4.42 g, this rod is indispensable in miniature devices and wherever low weight is crucial.

Since our magnets have a very precise dimensions, the recommended way is to glue them into holes with a slightly larger diameter (e.g., 5.1 mm) using epoxy glues. To ensure long-term durability in automation, anaerobic resins are used, which do not react with the nickel coating and fill the gap, guaranteeing durability of the connection.

Magnets N38 are strong enough for 90% of applications in modeling and machine building, where excessive miniaturization with maximum force is not required. If you need the strongest magnets in the same volume (Ø5x30), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard available off-the-shelf in our warehouse.

The presented product is a neodymium magnet with precisely defined parameters: diameter 5 mm and height 30 mm. The key parameter here is the holding force amounting to approximately 0.45 kg (force ~4.40 N), which, with such defined 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.

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 5 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 through the diameter if your project requires it.

Pros and cons of Nd₂Fe₁₄B magnets.

Benefits

Besides their immense magnetic power, neodymium magnets offer the following advantages:

They do not lose power, even after approximately 10 years – the decrease in power is only ~1% (based on measurements),
They show high resistance to demagnetization induced by external field influence,
A magnet with a shiny silver surface has better aesthetics,
The surface of neodymium magnets generates a powerful magnetic field – this is one of their assets,
Through (appropriate) combination of ingredients, they can achieve high thermal resistance, allowing for functioning at temperatures approaching 230°C and above...
Possibility of accurate forming and adjusting to complex conditions,
Significant place in high-tech industry – they find application in HDD drives, electric motors, diagnostic systems, as well as complex engineering applications.
Relatively small size with high pulling force – neodymium magnets offer high power in compact dimensions, which enables their usage in small systems

Weaknesses

Disadvantages of NdFeB magnets:

Brittleness is one of their disadvantages. Upon strong impact they can break. We advise keeping them in a strong case, which not only protects them against impacts but also raises their durability
When exposed to high temperature, neodymium magnets suffer a drop in power. Often, when the temperature exceeds 80°C, their power decreases (depending on the size, as well as shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
They rust in a humid environment. For use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
Limited ability of creating nuts in the magnet and complex forms - recommended is a housing - magnet mounting.
Possible danger to health – tiny shards of magnets can be dangerous, in case of ingestion, which becomes key in the aspect of protecting the youngest. Furthermore, small elements of these products are able to disrupt the diagnostic process medical in case of swallowing.
With budget limitations the cost of neodymium magnets is economically unviable,

Pull force analysis

Magnetic strength at its maximum – what it depends on?

The lifting capacity listed is a theoretical maximum value conducted under the following configuration:

with the contact of a yoke made of special test steel, ensuring full magnetic saturation
whose thickness is min. 10 mm
with a plane cleaned and smooth
with total lack of distance (without paint)
for force applied at a right angle (in the magnet axis)
in stable room temperature

Determinants of lifting force in real conditions

Please note that the working load will differ subject to elements below, in order of importance:

Distance – the presence of any layer (rust, tape, gap) acts as an insulator, which reduces capacity rapidly (even by 50% at 0.5 mm).
Load vector – maximum parameter is available only during pulling at a 90° angle. The force required to slide of the magnet along the surface is typically many times lower (approx. 1/5 of the lifting capacity).
Plate thickness – insufficiently thick plate does not accept the full field, causing part of the flux to be escaped to the other side.
Steel grade – the best choice is high-permeability steel. Stainless steels may have worse magnetic properties.
Surface condition – smooth surfaces ensure maximum contact, which improves force. Uneven metal weaken the grip.
Thermal factor – hot environment reduces pulling force. Too high temperature can permanently demagnetize the magnet.

Holding force was tested on a smooth steel plate of 20 mm thickness, when the force acted perpendicularly, however under shearing force the holding force is lower. Moreover, even a slight gap between the magnet and the plate reduces the lifting capacity.

Safe handling of NdFeB magnets

Permanent damage

Regular neodymium magnets (N-type) lose magnetization when the temperature exceeds 80°C. Damage is permanent.

Handling rules

Before starting, check safety instructions. Uncontrolled attraction can break the magnet or injure your hand. Think ahead.

Shattering risk

Beware of splinters. Magnets can explode upon uncontrolled impact, launching sharp fragments into the air. Eye protection is mandatory.

Compass and GPS

Be aware: rare earth magnets produce a field that disrupts sensitive sensors. Maintain a safe distance from your mobile, device, and navigation systems.

Fire warning

Mechanical processing of NdFeB material carries a risk of fire risk. Magnetic powder oxidizes rapidly with oxygen and is difficult to extinguish.

Bone fractures

Large magnets can crush fingers instantly. Never place your hand betwixt two attracting surfaces.

Keep away from computers

Very strong magnetic fields can erase data on payment cards, hard drives, and other magnetic media. Keep a distance of at least 10 cm.

Warning for allergy sufferers

A percentage of the population suffer from a hypersensitivity to nickel, which is the standard coating for neodymium magnets. Frequent touching can result in an allergic reaction. It is best to use safety gloves.

Danger to the youngest

NdFeB magnets are not intended for children. Accidental ingestion of several magnets may result in them attracting across intestines, which constitutes a critical condition and necessitates immediate surgery.

Life threat

For implant holders: Strong magnetic fields disrupt electronics. Keep at least 30 cm distance or ask another person to handle the magnets.

Important! Need more info? Read our article: Are neodymium magnets dangerous?

MW 5x30 / N38 - cylindrical magnet

Product card - MW 5x30 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Technical analysis of the product - data

Table 1: Static force (force vs distance) - power drop MW 5x30 / N38

Table 2: Shear load (wall) MW 5x30 / N38

Table 3: Vertical assembly (sliding) - vertical pull MW 5x30 / N38

Table 4: Steel thickness (substrate influence) - power losses MW 5x30 / N38

Table 5: Thermal stability (stability) - thermal limit MW 5x30 / N38

Table 6: Two magnets (attraction) - field collision MW 5x30 / N38

Table 7: Hazards (electronics) - precautionary measures MW 5x30 / N38

Table 8: Impact energy (kinetic energy) - collision effects MW 5x30 / N38

Table 9: Surface protection spec MW 5x30 / N38

Table 10: Construction data (Flux) MW 5x30 / N38

Table 11: Hydrostatics and buoyancy MW 5x30 / N38

1. Sliding resistance

2. Steel saturation

3. Thermal stability

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

Chemical composition

Ecology and recycling (GPSR)

Magnet pull force

Field Strength

See also proposals

UMGZ 32x18x8 [M6] GZ / N38 - magnetic holder external thread

MPL 20x3x2 / N38 - lamellar magnet

MPL 20x8x6 / N38 - lamellar magnet

WM 34.5x24.3x17 / N38 - magnetic hanger

Pros and cons of Nd2Fe14B magnets.

Benefits

Weaknesses

Pull force analysis

Magnetic strength at its maximum – what it depends on?

Determinants of lifting force in real conditions

Safe handling of NdFeB magnets

Permanent damage

Handling rules

Shattering risk

Compass and GPS

Fire warning

Bone fractures

Keep away from computers

Warning for allergy sufferers

Danger to the youngest

Life threat

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (force vs distance) - power drop
MW 5x30 / N38

Table 2: Shear load (wall)
MW 5x30 / N38

Table 3: Vertical assembly (sliding) - vertical pull
MW 5x30 / N38

Table 4: Steel thickness (substrate influence) - power losses
MW 5x30 / N38

Table 5: Thermal stability (stability) - thermal limit
MW 5x30 / N38

Table 6: Two magnets (attraction) - field collision
MW 5x30 / N38

Table 7: Hazards (electronics) - precautionary measures
MW 5x30 / N38

Table 8: Impact energy (kinetic energy) - collision effects
MW 5x30 / N38

Table 9: Surface protection spec
MW 5x30 / N38

Table 10: Construction data (Flux)
MW 5x30 / N38

Table 11: Hydrostatics and buoyancy
MW 5x30 / N38

Pros and cons of Nd₂Fe₁₄B magnets.