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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 details »

3.57 ZŁ with VAT / pcs + price for transport

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Technical details - 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

Physical simulation of the assembly - data

These values are the result of a mathematical analysis. Results rely on algorithms for the material Nd₂Fe₁₄B. Actual conditions might slightly differ from theoretical values. Please consider these calculations as a preliminary roadmap when designing systems.

Table 1: Static pull force (force vs gap) - 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 lbs 450.0 g / 4.4 N	safe
1 mm	3877 Gs 387.7 mT	0.18 kg / 0.39 lbs 178.6 g / 1.8 N	safe
2 mm	2308 Gs 230.8 mT	0.06 kg / 0.14 lbs 63.3 g / 0.6 N	safe
3 mm	1419 Gs 141.9 mT	0.02 kg / 0.05 lbs 23.9 g / 0.2 N	safe
5 mm	639 Gs 63.9 mT	0.00 kg / 0.01 lbs 4.8 g / 0.0 N	safe
10 mm	173 Gs 17.3 mT	0.00 kg / 0.00 lbs 0.4 g / 0.0 N	safe
15 mm	75 Gs 7.5 mT	0.00 kg / 0.00 lbs 0.1 g / 0.0 N	safe
20 mm	40 Gs 4.0 mT	0.00 kg / 0.00 lbs 0.0 g / 0.0 N	safe
30 mm	16 Gs 1.6 mT	0.00 kg / 0.00 lbs 0.0 g / 0.0 N	safe
50 mm	5 Gs 0.5 mT	0.00 kg / 0.00 lbs 0.0 g / 0.0 N	safe

Grip strength decreases significantly with every mm of gap. Remember that every additional insulation layer (e.g., contamination, varnish, dust) strongly weakens the grip. Neodymiums work most effectively at the point of direct contact; gap weakens the force. See how quickly the pull force drop, when the product does not touch flatly to the steel surface. When calculating the arrangement, eliminate additional spacers.

Table 2: Slippage force (wall)
MW 5x30 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	0.09 kg / 0.20 lbs 90.0 g / 0.9 N
1 mm	Stal (~0.2)	0.04 kg / 0.08 lbs 36.0 g / 0.4 N
2 mm	Stal (~0.2)	0.01 kg / 0.03 lbs 12.0 g / 0.1 N
3 mm	Stal (~0.2)	0.00 kg / 0.01 lbs 4.0 g / 0.0 N
5 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 0.0 g / 0.0 N
10 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 0.0 g / 0.0 N
15 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 0.0 g / 0.0 N
20 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 0.0 g / 0.0 N
30 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 0.0 g / 0.0 N
50 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 0.0 g / 0.0 N

This section calculates the approximate force required to cause the sliding of the magnet down on a vertical steel wall (assuming typical friction coefficient). This value is relative to the air gap between the magnet and the metal.

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces
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 lbs 135.0 g / 1.3 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.09 kg / 0.20 lbs 90.0 g / 0.9 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.05 kg / 0.10 lbs 45.0 g / 0.4 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	0.23 kg / 0.50 lbs 225.0 g / 2.2 N

When hanging a holder on a upright plane (e.g., a fridge), it you can count on only approx. 20%-30% of its nominal power. Gravitational force and a low friction coefficient influence the fact that products slip faster than they pop off the substrate. Planning a hanger? Note that the sliding force is much weaker than the perpendicular breakaway force. On a smooth steel, the element will give way down under a significantly smaller weight. Using a rubber pad can significantly raise the stability.

Table 4: Steel thickness (substrate influence) - sheet metal selection
MW 5x30 / N38

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

A too thin steel is not enough to focus the full magnetic flux, which weakens actual performance of the holder. Should you attach a powerful product to a weak sheet, the magnetism will penetrate right through and the holding will be smaller. To squeeze full efficiency of this neodymium's power, you need a suitably thick piece of steel. The material oversaturation causes that on delicate walls (e.g., thin profiles), the holder works worse. We advise picking the steel thickness from these parameters.

Table 5: Working in heat (stability) - power drop
MW 5x30 / N38

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

Ordinary NdFeB products lose strength after exceeding the maximum temperature. Protect against heat – heat can irreversibly demagnetize this product. As the temperature rises, the magnet's capacity briefly decreases. Refrain from using this product close to heaters higher than its operating temperature limit. Exceeding the critical threshold will result in permanent loss of magnetism.

*Engineering note: Heat tolerance is determined by both grade, and the Permeance Coefficient Pc. Flat magnets (low Pc) are more susceptible to demagnetization at lower temperatures than long magnets. Red status in the table indicates a risk of irreversible loss for this specific geometry.

Table 6: Magnet-Magnet interaction (repulsion) - field collision
MW 5x30 / N38

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

Two magnetic products interact from a wider radius than a magnet and sheet combination. Such a system of magnet-to-magnet generates a stronger field and a larger range of performance. Planning to create a powerful holder? Utilize two neodymiums instead of a neodymium and a steel. Be careful that when attracting two neodymiums, the pinch force is massive. The levitation is a bit weaker than the connection force, but still significant.
*Field value between like poles reaches ~0 Gs at the midpoint of the gap (resulting from vector opposition).
Attention: Figures demonstrate shear force of dual matching magnets (friction coefficient ~0.15 for Ni-Ni plating).

Table 7: Protective zones (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
Mobile device	40 Gs (4.0 mT)	2.5 cm
Remote	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

Powerful magnet radiation poses a real danger to electronic devices and pacemakers. These neodymiums produce a flux that disrupts operation of sensitive medical devices. Notice: the invisible magnetic field acts through matter and housings. Special caution must be exercised by people with cochlear implants and drug dispensers. Also at risk are: automatic timepieces, remotes, membranes, and screens. Do not bring the product near payment cards, HDD media, or sensitive navigation tools.

Table 8: Impact energy (cracking risk) - warning
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

NdFeB products are prone to chipping – a collision with steel risks their cracking. Control the attraction moment – a neodymium left loose turns into a projectile. Impact energy can cause material chips or dangerous crushing to skin. Be sure to control the product during bringing near metal so it doesn't slam with momentum against the steel surface. A contact at a velocity of dozens of km/h almost guarantees destruction of the magnet. Wear safety glasses when working with powerful specimens.

Table 9: Corrosion resistance
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)

For outdoor applications, an epoxy coating is required; standard nickel is intended for indoor use. The silver nickel coating also serves an aesthetic function but is not fully waterproof.

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)

Total magnetic flux passing through the pole surface. Key data for generator designers as well as sensors. The P_c coefficient defines the magnet's operating point.

Table 11: Physics of underwater searching
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%

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

Water displaces steel, making heavy objects slightly lighter. However, remember the water resistance when pulling the rope quickly.

1. Sliding resistance

*Warning: On a vertical wall, the magnet holds only ~20% of its max power.

2. Steel saturation

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

3. Power loss vs temp

*For N38 material, 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

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: 010088-2026

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MW 12x1.5 / N38 - cylindrical magnet

0.431 ZŁ brutto / pcs

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MPL 30x20x5 / N38 - lamellar magnet

9.10 ZŁ brutto / pcs

The offered product is an incredibly powerful rod magnet, made from advanced NdFeB material, which, at dimensions of Ø5x30 mm, guarantees optimal power. The MW 5x30 / N38 component is characterized by an accuracy 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. 0.45 kg), this product is in stock from our European logistics center, ensuring lightning-fast order fulfillment. Additionally, its Ni-Cu-Ni coating shields it against corrosion in typical operating conditions, guaranteeing an aesthetic appearance and durability for years.

This model is ideal for building electric motors, advanced sensors, and efficient magnetic separators, where field concentration on a small surface counts. Thanks to the pull force of 4.40 N with a weight of only 4.42 g, this rod is indispensable in electronics 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 chipping the coating of this precision component. To ensure long-term durability in automation, specialized industrial adhesives are used, which do not react with the nickel coating and fill the gap, guaranteeing durability of the connection.

Grade N38 is the most frequently chosen standard for industrial neodymium magnets, offering an optimal price-to-power ratio and operational stability. 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 in continuous sale in our store.

The presented product is a neodymium magnet with precisely defined parameters: diameter 5 mm and height 30 mm. The value of 4.40 N means that the magnet is capable of holding a weight many times exceeding its own mass of 4.42 g. The product has a [NiCuNi] coating, which protects the surface against oxidation, 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. 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 rare earth magnets.

Advantages

Besides their durability, neodymium magnets are valued for these benefits:

They retain attractive force for nearly 10 years – the loss is just ~1% (in theory),
They are resistant to demagnetization induced by presence of other magnetic fields,
Thanks to the smooth finish, the layer of nickel, gold-plated, or silver gives an clean appearance,
Magnetic induction on the working part of the magnet is very high,
Thanks to resistance to high temperature, they can operate (depending on the shape) even at temperatures up to 230°C and higher...
Due to the possibility of precise forming and customization to custom needs, NdFeB magnets can be produced in a wide range of shapes and sizes, which increases their versatility,
Fundamental importance in innovative solutions – they find application in mass storage devices, brushless drives, medical equipment, and other advanced devices.
Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications

Cons

Disadvantages of NdFeB magnets:

At very strong impacts they can break, therefore we recommend placing them in strong housings. A metal housing provides additional protection against damage and increases the magnet's durability.
Neodymium magnets lose their power under the influence of heating. As soon as 80°C is exceeded, many of them start losing their force. Therefore, we recommend our special magnets marked [AH], which maintain durability even at temperatures up to 230°C
Due to the susceptibility of magnets to corrosion in a humid environment, we suggest using waterproof magnets made of rubber, plastic or other material stable to moisture, when using outdoors
Limited possibility of producing nuts in the magnet and complicated shapes - preferred is cover - mounting mechanism.
Possible danger to health – tiny shards of magnets pose a threat, if swallowed, which becomes key in the context of child safety. Additionally, tiny parts of these devices can disrupt the diagnostic process medical in case of swallowing.
Due to complex production process, their price is higher than average,

Holding force characteristics

Maximum magnetic pulling force – what contributes to it?

The declared magnet strength refers to the peak performance, obtained under optimal environment, meaning:

with the use of a sheet made of low-carbon steel, ensuring maximum field concentration
with a cross-section no less than 10 mm
characterized by lack of roughness
with zero gap (without coatings)
during pulling in a direction perpendicular to the mounting surface
at ambient temperature room level

Practical aspects of lifting capacity – factors

Please note that the application force may be lower subject to the following factors, starting with the most relevant:

Clearance – the presence of foreign body (paint, tape, air) interrupts the magnetic circuit, which lowers capacity rapidly (even by 50% at 0.5 mm).
Force direction – note that the magnet holds strongest perpendicularly. Under shear forces, the holding force drops significantly, often to levels of 20-30% of the nominal value.
Metal thickness – the thinner the sheet, the weaker the hold. Magnetic flux penetrates through instead of converting into lifting capacity.
Steel grade – ideal substrate is pure iron steel. Stainless steels may generate lower lifting capacity.
Plate texture – smooth surfaces ensure maximum contact, which improves field saturation. Uneven metal weaken the grip.
Thermal conditions – NdFeB sinters have a sensitivity to temperature. When it is hot they are weaker, and in frost gain strength (up to a certain limit).

Holding force was measured on a smooth steel plate of 20 mm thickness, when the force acted perpendicularly, whereas under parallel forces the holding force is lower. In addition, even a small distance between the magnet’s surface and the plate decreases the load capacity.

Safety rules for work with neodymium magnets

Nickel allergy

Some people suffer from a sensitization to Ni, which is the common plating for NdFeB magnets. Extended handling may cause dermatitis. We strongly advise use safety gloves.

Mechanical processing

Drilling and cutting of NdFeB material carries a risk of fire hazard. Neodymium dust oxidizes rapidly with oxygen and is hard to extinguish.

Handling rules

Be careful. Neodymium magnets attract from a long distance and snap with huge force, often quicker than you can react.

GPS Danger

Remember: neodymium magnets generate a field that disrupts sensitive sensors. Keep a separation from your mobile, device, and navigation systems.

Health Danger

People with a pacemaker have to maintain an large gap from magnets. The magnetic field can stop the functioning of the life-saving device.

No play value

These products are not intended for children. Swallowing several magnets may result in them connecting inside the digestive tract, which poses a direct threat to life and requires immediate surgery.

Bodily injuries

Large magnets can smash fingers in a fraction of a second. Never place your hand between two attracting surfaces.

Fragile material

Despite the nickel coating, the material is brittle and cannot withstand shocks. Avoid impacts, as the magnet may crumble into sharp, dangerous pieces.

Power loss in heat

Watch the temperature. Heating the magnet to high heat will ruin its properties and pulling force.

Threat to electronics

Device Safety: Strong magnets can ruin data carriers and delicate electronics (pacemakers, medical aids, mechanical watches).

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

MW 5x30 / N38 - cylindrical magnet

Technical details - MW 5x30 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical simulation of the assembly - data

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

Table 2: Slippage force (wall) MW 5x30 / N38

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces MW 5x30 / N38

Table 4: Steel thickness (substrate influence) - sheet metal selection MW 5x30 / N38

Table 5: Working in heat (stability) - power drop MW 5x30 / N38

Table 6: Magnet-Magnet interaction (repulsion) - field collision MW 5x30 / N38

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

Table 8: Impact energy (cracking risk) - warning MW 5x30 / N38

Table 9: Corrosion resistance MW 5x30 / N38

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

Table 11: Physics of underwater searching MW 5x30 / N38

1. Sliding resistance

2. Steel saturation

3. Power loss vs temp

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

Elemental analysis

Sustainability

Magnet pull force

Field Strength

See also offers

MW 12x1.5 / N38 - cylindrical magnet

UMGGZ 66x8.5 [M8] GZ / N38 - rubber magnetic holder external thread

SMZR 25x225 / N52 - magnetic separator with handle

MPL 30x20x5 / N38 - lamellar magnet

Advantages as well as disadvantages of rare earth magnets.

Advantages

Cons

Holding force characteristics

Maximum magnetic pulling force – what contributes to it?

Practical aspects of lifting capacity – factors

Safety rules for work with neodymium magnets

Nickel allergy

Mechanical processing

Handling rules

GPS Danger

Health Danger

No play value

Bodily injuries

Fragile material

Power loss in heat

Threat to electronics

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

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

Table 2: Slippage force (wall)
MW 5x30 / N38

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces
MW 5x30 / N38

Table 4: Steel thickness (substrate influence) - sheet metal selection
MW 5x30 / N38

Table 5: Working in heat (stability) - power drop
MW 5x30 / N38

Table 6: Magnet-Magnet interaction (repulsion) - field collision
MW 5x30 / N38

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

Table 8: Impact energy (cracking risk) - warning
MW 5x30 / N38

Table 9: Corrosion resistance
MW 5x30 / N38

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

Table 11: Physics of underwater searching
MW 5x30 / N38