Product available Ships tomorrow

MW 5x7 / N38 - cylindrical magnet

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

cylindrical magnet

Catalog no 010090

GTIN/EAN: 5906301810896

5.00

Diameter Ø

5 mm [±0,1 mm]

Height

7 mm [±0,1 mm]

Weight

1.03 g

Magnetization Direction

↑ axial

Load capacity

0.67 kg / 6.60 N

Magnetic Induction

582.40 mT / 5824 Gs

Coating

[NiCuNi] Nickel

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0.726 ZŁ with VAT / pcs + price for transport

0.590 ZŁ net + 23% VAT / pcs

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Physical properties - MW 5x7 / N38 - cylindrical magnet

Specification / characteristics - MW 5x7 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010090
GTIN/EAN	5906301810896
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	7 mm [±0,1 mm]
Weight	1.03 g
Magnetization Direction	↑ axial
Load capacity ~ ?	0.67 kg / 6.60 N
Magnetic Induction ~ ?	582.40 mT / 5824 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 5x7 / 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 modeling of the magnet - technical parameters

Presented information constitute the direct effect of a physical analysis. Results are based on algorithms for the material Nd₂Fe₁₄B. Actual conditions may differ. Please consider these data as a reference point for designers.

Table 1: Static force (pull vs distance) - characteristics
MW 5x7 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	5815 Gs 581.5 mT	0.67 kg / 1.48 lbs 670.0 g / 6.6 N	low risk
1 mm	3615 Gs 361.5 mT	0.26 kg / 0.57 lbs 259.0 g / 2.5 N	low risk
2 mm	2101 Gs 210.1 mT	0.09 kg / 0.19 lbs 87.4 g / 0.9 N	low risk
3 mm	1252 Gs 125.2 mT	0.03 kg / 0.07 lbs 31.1 g / 0.3 N	low risk
5 mm	524 Gs 52.4 mT	0.01 kg / 0.01 lbs 5.4 g / 0.1 N	low risk
10 mm	119 Gs 11.9 mT	0.00 kg / 0.00 lbs 0.3 g / 0.0 N	low risk
15 mm	45 Gs 4.5 mT	0.00 kg / 0.00 lbs 0.0 g / 0.0 N	low risk
20 mm	21 Gs 2.1 mT	0.00 kg / 0.00 lbs 0.0 g / 0.0 N	low risk
30 mm	7 Gs 0.7 mT	0.00 kg / 0.00 lbs 0.0 g / 0.0 N	low risk
50 mm	2 Gs 0.2 mT	0.00 kg / 0.00 lbs 0.0 g / 0.0 N	low risk

Grip strength weakens significantly with every mm of distance. Note that every additional insulation layer (e.g., dirt, paint, rust) noticeably reduces the pull force. Magnetic products hold optimally at the point of direct contact; gap kills the force. See how flashily the pull force drop, when the product does not adhere flatly to the metal substrate. When planning the arrangement, avoid unnecessary gaps.

Table 2: Vertical load (wall)
MW 5x7 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	0.13 kg / 0.30 lbs 134.0 g / 1.3 N
1 mm	Stal (~0.2)	0.05 kg / 0.11 lbs 52.0 g / 0.5 N
2 mm	Stal (~0.2)	0.02 kg / 0.04 lbs 18.0 g / 0.2 N
3 mm	Stal (~0.2)	0.01 kg / 0.01 lbs 6.0 g / 0.1 N
5 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 2.0 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

The table below calculates the theoretical weight limit required to start the downward movement of the magnet downwards along a vertical metal surface (assuming typical friction). This parameter is a function of the air gap between the magnet and the metal.

Table 3: Wall mounting (shearing) - behavior on slippery surfaces
MW 5x7 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	0.20 kg / 0.44 lbs 201.0 g / 2.0 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.13 kg / 0.30 lbs 134.0 g / 1.3 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.07 kg / 0.15 lbs 67.0 g / 0.7 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	0.34 kg / 0.74 lbs 335.0 g / 3.3 N

When placing a holder on a upright surface (e.g., a car body), it you can count on just approx. 20%-30% of its nominal power. Gravity and a low friction coefficient influence the fact that holders slip easier than they pop off the substrate. Want to create a hanger? Note that the shear force is significantly lower than the perpendicular breakaway force. On a painted metal, the element will slip down under a much lighter cargo. Utilizing a rubberized layer can significantly increase the grip.

Table 4: Material efficiency (saturation) - sheet metal selection
MW 5x7 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.07 kg / 0.15 lbs 67.0 g / 0.7 N
1 mm	25%	0.17 kg / 0.37 lbs 167.5 g / 1.6 N
2 mm	50%	0.34 kg / 0.74 lbs 335.0 g / 3.3 N
3 mm	75%	0.50 kg / 1.11 lbs 502.5 g / 4.9 N
5 mm	100%	0.67 kg / 1.48 lbs 670.0 g / 6.6 N
10 mm	100%	0.67 kg / 1.48 lbs 670.0 g / 6.6 N
11 mm	100%	0.67 kg / 1.48 lbs 670.0 g / 6.6 N
12 mm	100%	0.67 kg / 1.48 lbs 670.0 g / 6.6 N

A too thin steel is not enough to focus the full magnetic flux, which wastes potential of the magnet. Should you attach a powerful product to a thin surface, the flux will penetrate right through and the attraction force will be weaker. To squeeze 100% of this magnet's potential, you need a suitably thick backing of metal. The saturation phenomenon means that on sheet metal structures (e.g., thin profiles), the product works worse. We advise picking the steel dimension according to the table below.

Table 5: Working in heat (stability) - resistance threshold
MW 5x7 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	0.67 kg / 1.48 lbs 670.0 g / 6.6 N	OK
40 °C	-2.2%	0.66 kg / 1.44 lbs 655.3 g / 6.4 N	OK
60 °C	-4.4%	0.64 kg / 1.41 lbs 640.5 g / 6.3 N	OK
80 °C	-6.6%	0.63 kg / 1.38 lbs 625.8 g / 6.1 N
100 °C	-28.8%	0.48 kg / 1.05 lbs 477.0 g / 4.7 N

Standard neodymium magnets lose strength past the thermal threshold. Protect against heat – excessive heat can permanently destroy this magnet. With every degree above norm, the magnet's power momentarily lowers. Avoid using this magnet close to ovens higher than its working range. Ignoring the limit will result in irreversible degradation of magnetism.

*Engineering note: Thermal stability depends not only on the material grade, and the Permeance Coefficient Pc. Thin magnets (pancake types) may lose charge permanently sooner than long magnets. Red status in the table points to permanent field degradation for this specific geometry.

Table 6: Magnet-Magnet interaction (repulsion) - forces in the system
MW 5x7 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Lateral Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	4.09 kg / 9.02 lbs 6 079 Gs	0.61 kg / 1.35 lbs 614 g / 6.0 N	N/A
1 mm	2.64 kg / 5.81 lbs 9 332 Gs	0.40 kg / 0.87 lbs 395 g / 3.9 N	2.37 kg / 5.23 lbs ~0 Gs
2 mm	1.58 kg / 3.49 lbs 7 230 Gs	0.24 kg / 0.52 lbs 237 g / 2.3 N	1.42 kg / 3.14 lbs ~0 Gs
3 mm	0.92 kg / 2.03 lbs 5 516 Gs	0.14 kg / 0.30 lbs 138 g / 1.4 N	0.83 kg / 1.83 lbs ~0 Gs
5 mm	0.31 kg / 0.69 lbs 3 224 Gs	0.05 kg / 0.10 lbs 47 g / 0.5 N	0.28 kg / 0.62 lbs ~0 Gs
10 mm	0.03 kg / 0.07 lbs 1 048 Gs	0.00 kg / 0.01 lbs 5 g / 0.0 N	0.03 kg / 0.07 lbs ~0 Gs
20 mm	0.00 kg / 0.00 lbs 238 Gs	0.00 kg / 0.00 lbs 0 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs
50 mm	0.00 kg / 0.00 lbs 24 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 15 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 10 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 7 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 5 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 4 Gs	0.00 kg / 0.00 lbs 0 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs

Two strong neodymiums attract each other from a wider radius than a neodymium and metal combination. The connection of two magnets creates a more powerful interaction and a wider radius of performance. Designing a powerful holder? Use a pair of magnets instead of one magnet and a striker plate. Exercise caution that when connecting a pair of magnets, the collision energy is massive. The levitation is a bit weaker than the attraction, but still significant.
*The magnetic induction between like poles reaches ~0 Gs in the exact middle between the magnets (resulting from vector opposition).
Attention: Results show sliding force of two same neodymium magnets (friction ~0.15 for Ni-Ni plating).

Table 7: Hazards (implants) - precautionary measures
MW 5x7 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	3.5 cm
Hearing aid	10 Gs (1.0 mT)	3.0 cm
Timepiece	20 Gs (2.0 mT)	2.5 cm
Mobile device	40 Gs (4.0 mT)	2.0 cm
Remote	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

Powerful magnet radiation is a large risk to electronic devices and pacemakers. These neodymiums generate a field that prevents correct functioning of sensitive medical devices. Remember: the invisible magnetic field acts through matter and plastic. Exceptional care must be exercised by people with hearing aids and drug dispensers. Also at risk are: automatic timepieces, car keys, speakers, and screens. Do not place the magnet near cards, hard drives, or sensitive navigation tools.

Table 8: Collisions (kinetic energy) - collision effects
MW 5x7 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	25.73 km/h (7.15 m/s)	0.03 J
30 mm	44.55 km/h (12.38 m/s)	0.08 J
50 mm	57.52 km/h (15.98 m/s)	0.13 J
100 mm	81.34 km/h (22.59 m/s)	0.26 J

NdFeB products are prone to chipping – a collision with steel causes immediate chipping. Watch the impact speed – a magnet released freely turns into a projectile. Kinetic force can cause material chips or painful pinches to fingers. Hold the magnet firmly during installation so it doesn't hit violently against the steel surface. A collision at high speed means shattering of the neodymium. Use safety goggles when handling with powerful specimens.

Table 9: Corrosion resistance
MW 5x7 / 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 SST (salt spray test) is an industry standard for determining coating lifespan in harsh conditions. Improper coating selection is the most common cause of magnet failure over time.

Table 10: Electrical data (Flux)
MW 5x7 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	1 219 Mx	12.2 µWb
P_c Coefficient	1.05	High (Stable)

Flux value emitted by the magnet pole. Essential parameter when building generators as well as sensors. P_c value determines the magnet's operating point.

Table 11: Physics of underwater searching
MW 5x7 / N38

Environment	Effective steel pull	Effect
Air (land)	0.67 kg	Standard
Water (riverbed)	0.77 kg (+0.10 kg buoyancy gain)	+14.5%

Warning: 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. However, remember the water resistance when pulling the rope quickly.

1. Shear force

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

2. Steel saturation

*Thin steel (e.g. 0.5mm PC case) drastically limits the holding force.

3. Power loss vs temp

*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) = 1.05

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

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: 010090-2026

Measurement Calculator

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Force (N)

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UMP 94x28 [3xM10] GW F300 GOLD Lina / N38 - search holder

300.00 ZŁ brutto / pcs

The presented product is an incredibly powerful rod magnet, composed of modern NdFeB material, which, at dimensions of Ø5x7 mm, guarantees optimal power. This specific item is characterized by high dimensional repeatability and professional build quality, making it an ideal solution for the most demanding engineers and designers. As a cylindrical magnet with impressive force (approx. 0.67 kg), this product is available off-the-shelf from our European logistics center, ensuring rapid order fulfillment. Additionally, its Ni-Cu-Ni coating effectively protects it against corrosion in standard operating conditions, guaranteeing an aesthetic appearance and durability for years.

It successfully proves itself in DIY projects, advanced robotics, and broadly understood industry, serving as a positioning or actuating element. Thanks to the pull force of 6.60 N with a weight of only 1.03 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 professional component. To ensure stability in industry, anaerobic resins are used, which do not react with the nickel coating and fill the gap, guaranteeing high repeatability of the connection.

Grade N38 is the most frequently chosen standard for professional neodymium magnets, offering a great economic balance and operational stability. If you need the strongest magnets in the same volume (Ø5x7), 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 Ø5x7 mm, which, at a weight of 1.03 g, makes it an element with impressive magnetic energy density. The key parameter here is the lifting capacity amounting to approximately 0.67 kg (force ~6.60 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 most desirable 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.

Advantages

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

They have constant strength, and over nearly ten years their attraction force decreases symbolically – ~1% (in testing),
They do not lose their magnetic properties even under external field action,
Thanks to the glossy finish, the surface of nickel, gold, or silver-plated gives an clean appearance,
Magnets have extremely high magnetic induction on the outer layer,
Due to their durability and thermal resistance, neodymium magnets are capable of operate (depending on the shape) even at high temperatures reaching 230°C or more...
In view of the potential of accurate molding and customization to custom requirements, NdFeB magnets can be modeled in a wide range of forms and dimensions, which expands the range of possible applications,
Huge importance in future technologies – they are utilized in magnetic memories, electric motors, diagnostic systems, also complex engineering applications.
Compactness – despite small sizes they provide effective action, making them ideal for precision applications

Limitations

Characteristics of disadvantages of neodymium magnets: weaknesses and usage proposals

Brittleness is one of their disadvantages. Upon strong impact they can break. We advise keeping them in a steel housing, which not only protects them against impacts but also increases their durability
Neodymium magnets decrease their strength under the influence of heating. As soon as 80°C is exceeded, many of them start losing their power. Therefore, we recommend our special magnets marked [AH], which maintain stability even at temperatures up to 230°C
When exposed to humidity, magnets usually rust. To use them in conditions outside, it is recommended to use protective magnets, such as those in rubber or plastics, which secure oxidation as well as corrosion.
Limited ability of producing nuts in the magnet and complex shapes - recommended is a housing - mounting mechanism.
Health risk related to microscopic parts of magnets pose a threat, if swallowed, which gains importance in the context of child health protection. Additionally, tiny parts of these devices can complicate diagnosis medical in case of swallowing.
Due to complex production process, their price exceeds standard values,

Holding force characteristics

Magnetic strength at its maximum – what it depends on?

The load parameter shown refers to the peak performance, obtained under laboratory conditions, namely:

using a sheet made of low-carbon steel, acting as a magnetic yoke
whose transverse dimension reaches at least 10 mm
characterized by lack of roughness
without any insulating layer between the magnet and steel
for force applied at a right angle (pull-off, not shear)
at standard ambient temperature

Practical lifting capacity: influencing factors

Bear in mind that the working load will differ subject to elements below, starting with the most relevant:

Distance – existence of foreign body (rust, dirt, air) interrupts the magnetic circuit, which lowers capacity rapidly (even by 50% at 0.5 mm).
Force direction – remember that the magnet holds strongest perpendicularly. Under sliding down, the holding force drops drastically, often to levels of 20-30% of the maximum value.
Steel thickness – too thin sheet does not close the flux, causing part of the power to be wasted to the other side.
Steel grade – the best choice is high-permeability steel. Cast iron may generate lower lifting capacity.
Plate texture – ground elements ensure maximum contact, which increases force. Uneven metal weaken the grip.
Thermal conditions – neodymium magnets have a negative temperature coefficient. When it is hot they are weaker, and in frost gain strength (up to a certain limit).

Holding force was tested on a smooth steel plate of 20 mm thickness, when the force acted perpendicularly, in contrast under attempts to slide the magnet the holding force is lower. Additionally, even a small distance between the magnet and the plate decreases the holding force.

Safe handling of NdFeB magnets

Keep away from computers

Device Safety: Neodymium magnets can damage data carriers and sensitive devices (heart implants, medical aids, timepieces).

Medical interference

Life threat: Strong magnets can deactivate pacemakers and defibrillators. Stay away if you have medical devices.

Thermal limits

Standard neodymium magnets (grade N) lose magnetization when the temperature surpasses 80°C. This process is irreversible.

GPS Danger

Remember: neodymium magnets produce a field that confuses sensitive sensors. Keep a safe distance from your mobile, tablet, and GPS.

Do not drill into magnets

Machining of neodymium magnets carries a risk of fire hazard. Neodymium dust oxidizes rapidly with oxygen and is hard to extinguish.

Nickel allergy

Warning for allergy sufferers: The nickel-copper-nickel coating consists of nickel. If redness occurs, cease working with magnets and use protective gear.

Crushing risk

Large magnets can smash fingers in a fraction of a second. Under no circumstances place your hand betwixt two strong magnets.

Risk of cracking

Beware of splinters. Magnets can fracture upon uncontrolled impact, ejecting shards into the air. Eye protection is mandatory.

Do not give to children

Always store magnets out of reach of children. Ingestion danger is significant, and the effects of magnets clamping inside the body are very dangerous.

Safe operation

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

Security! Learn more about risks in the article: Safety of working with magnets.

MW 5x7 / N38 - cylindrical magnet

Physical properties - MW 5x7 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Engineering modeling of the magnet - technical parameters

Table 1: Static force (pull vs distance) - characteristics MW 5x7 / N38

Table 2: Vertical load (wall) MW 5x7 / N38

Table 3: Wall mounting (shearing) - behavior on slippery surfaces MW 5x7 / N38

Table 4: Material efficiency (saturation) - sheet metal selection MW 5x7 / N38

Table 5: Working in heat (stability) - resistance threshold MW 5x7 / N38

Table 6: Magnet-Magnet interaction (repulsion) - forces in the system MW 5x7 / N38

Table 7: Hazards (implants) - precautionary measures MW 5x7 / N38

Table 8: Collisions (kinetic energy) - collision effects MW 5x7 / N38

Table 9: Corrosion resistance MW 5x7 / N38

Table 10: Electrical data (Flux) MW 5x7 / N38

Table 11: Physics of underwater searching MW 5x7 / N38

1. Shear force

2. Steel saturation

3. Power loss vs temp

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

Material specification

Environmental data

Force (pull)

Magnetic Field

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UMP 94x28 [3xM10] GW F300 GOLD Lina / N38 - search holder

Pros and cons of rare earth magnets.

Advantages

Limitations

Holding force characteristics

Magnetic strength at its maximum – what it depends on?

Practical lifting capacity: influencing factors

Safe handling of NdFeB magnets

Keep away from computers

Medical interference

Thermal limits

GPS Danger

Do not drill into magnets

Nickel allergy

Crushing risk

Risk of cracking

Do not give to children

Safe operation

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (pull vs distance) - characteristics
MW 5x7 / N38

Table 2: Vertical load (wall)
MW 5x7 / N38

Table 3: Wall mounting (shearing) - behavior on slippery surfaces
MW 5x7 / N38

Table 4: Material efficiency (saturation) - sheet metal selection
MW 5x7 / N38

Table 5: Working in heat (stability) - resistance threshold
MW 5x7 / N38

Table 6: Magnet-Magnet interaction (repulsion) - forces in the system
MW 5x7 / N38

Table 7: Hazards (implants) - precautionary measures
MW 5x7 / N38

Table 8: Collisions (kinetic energy) - collision effects
MW 5x7 / N38

Table 9: Corrosion resistance
MW 5x7 / N38

Table 10: Electrical data (Flux)
MW 5x7 / N38

Table 11: Physics of underwater searching
MW 5x7 / N38