Product available Ships today (order by 14:00)

MW 9x3 / 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 010108

GTIN/EAN: 5906301811077

5.00

Diameter Ø

9 mm [±0,1 mm]

Height

3 mm [±0,1 mm]

Weight

1.43 g

Magnetization Direction

↑ axial

Load capacity

1.94 kg / 18.99 N

Magnetic Induction

343.55 mT / 3436 Gs

Coating

[NiCuNi] Nickel

view technical data »

1.132 ZŁ with VAT / pcs + price for transport

0.920 ZŁ net + 23% VAT / pcs

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Technical data - MW 9x3 / N38 - cylindrical magnet

Specification / characteristics - MW 9x3 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010108
GTIN/EAN	5906301811077
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	9 mm [±0,1 mm]
Height	3 mm [±0,1 mm]
Weight	1.43 g
Magnetization Direction	↑ axial
Load capacity ~ ?	1.94 kg / 18.99 N
Magnetic Induction ~ ?	343.55 mT / 3436 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 9x3 / N38 - cylindrical magnet

properties	values	units
remenance Br [min. - max.] ?	12.2-12.6	kGs
remenance Br [min. - max.] ?	1220-1260	mT
coercivity bHc ?	10.8-11.5	kOe
coercivity bHc ?	860-915	kA/m
actual internal force iHc	≥ 12	kOe
actual internal force iHc	≥ 955	kA/m
energy density [min. - max.] ?	36-38	BH max MGOe
energy density [min. - max.] ?	287-303	BH max KJ/m
max. temperature ?	≤ 80	°C

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

properties	values	units
Vickers hardness	≥550	Hv
Density	≥7.4	g/cm³
Curie Temperature TC	312 - 380	°C
Curie Temperature TF	593 - 716	°F
Specific resistance	150	μΩ⋅cm
Bending strength	250	MPa
Compressive strength	1000~1100	MPa
Thermal expansion parallel (∥) to orientation (M)	(3-4) x 10^-6	°C^-1
Thermal expansion perpendicular (⊥) to orientation (M)	-(1-3) x 10^-6	°C^-1
Young's modulus	1.7 x 10⁴	kg/mm²

Engineering simulation of the magnet - technical parameters

Presented values are the result of a engineering analysis. Results rely on models for the class Nd₂Fe₁₄B. Real-world parameters may differ. Use these data as a reference point when designing systems.

Table 1: Static force (pull vs distance) - characteristics
MW 9x3 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	3433 Gs 343.3 mT	1.94 kg / 4.28 lbs 1940.0 g / 19.0 N	safe
1 mm	2774 Gs 277.4 mT	1.27 kg / 2.79 lbs 1266.5 g / 12.4 N	safe
2 mm	2090 Gs 209.0 mT	0.72 kg / 1.59 lbs 719.2 g / 7.1 N	safe
3 mm	1521 Gs 152.1 mT	0.38 kg / 0.84 lbs 380.7 g / 3.7 N	safe
5 mm	795 Gs 79.5 mT	0.10 kg / 0.23 lbs 104.1 g / 1.0 N	safe
10 mm	205 Gs 20.5 mT	0.01 kg / 0.02 lbs 6.9 g / 0.1 N	safe
15 mm	76 Gs 7.6 mT	0.00 kg / 0.00 lbs 1.0 g / 0.0 N	safe
20 mm	36 Gs 3.6 mT	0.00 kg / 0.00 lbs 0.2 g / 0.0 N	safe
30 mm	12 Gs 1.2 mT	0.00 kg / 0.00 lbs 0.0 g / 0.0 N	safe
50 mm	3 Gs 0.3 mT	0.00 kg / 0.00 lbs 0.0 g / 0.0 N	safe

Magnetic force drops drastically with every subsequent millimeter of gap. Keep in mind that every additional insulation layer (e.g., contamination, varnish, dust) strongly weakens the grip. Magnetic products work optimally in perfect adhesion; air break drastically cuts the force. See how flashily the load capacity plummet, when the product does not touch flatly to the metal substrate. When calculating the assembly, eliminate additional spacers.

Table 2: Sliding load (vertical surface)
MW 9x3 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	0.39 kg / 0.86 lbs 388.0 g / 3.8 N
1 mm	Stal (~0.2)	0.25 kg / 0.56 lbs 254.0 g / 2.5 N
2 mm	Stal (~0.2)	0.14 kg / 0.32 lbs 144.0 g / 1.4 N
3 mm	Stal (~0.2)	0.08 kg / 0.17 lbs 76.0 g / 0.7 N
5 mm	Stal (~0.2)	0.02 kg / 0.04 lbs 20.0 g / 0.2 N
10 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 2.0 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 presents the estimated shear load sufficient to start the sliding of the magnet vertically on a upright metal surface (considering typical friction). This parameter depends on the distance between the magnet and the surface.

Table 3: Vertical assembly (sliding) - vertical pull
MW 9x3 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	0.58 kg / 1.28 lbs 582.0 g / 5.7 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.39 kg / 0.86 lbs 388.0 g / 3.8 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.19 kg / 0.43 lbs 194.0 g / 1.9 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	0.97 kg / 2.14 lbs 970.0 g / 9.5 N

When placing a magnet on a upright surface (e.g., a fridge), it will maintain only approx. 20%-30% of its maximum pull force. Gravity as well as a low friction coefficient influence the fact that magnets slip easier than they detach. Want to create a wall mount? Note that the shear force is significantly lower than the maximum static pull force. On a smooth steel, the magnet will give way down under a much lighter cargo. Utilizing a rubberized pad can effectively improve the result.

Table 4: Steel thickness (substrate influence) - sheet metal selection
MW 9x3 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.19 kg / 0.43 lbs 194.0 g / 1.9 N
1 mm	25%	0.49 kg / 1.07 lbs 485.0 g / 4.8 N
2 mm	50%	0.97 kg / 2.14 lbs 970.0 g / 9.5 N
3 mm	75%	1.46 kg / 3.21 lbs 1455.0 g / 14.3 N
5 mm	100%	1.94 kg / 4.28 lbs 1940.0 g / 19.0 N
10 mm	100%	1.94 kg / 4.28 lbs 1940.0 g / 19.0 N
11 mm	100%	1.94 kg / 4.28 lbs 1940.0 g / 19.0 N
12 mm	100%	1.94 kg / 4.28 lbs 1940.0 g / 19.0 N

A thin metal plate cannot conduct the full magnetic flux, which weakens actual performance of the magnet. If you mount a strong magnet to a thin surface, the magnetism will penetrate right through and the attraction force will be weaker. To squeeze 100% of this magnet's potential, you need a suitably thick piece of steel. The saturation effect means that on thin elements (e.g., car bodies), the product shows lower pull force. We recommend selecting the steel dimension according to the table below.

Table 5: Thermal stability (stability) - thermal limit
MW 9x3 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	1.94 kg / 4.28 lbs 1940.0 g / 19.0 N	OK
40 °C	-2.2%	1.90 kg / 4.18 lbs 1897.3 g / 18.6 N	OK
60 °C	-4.4%	1.85 kg / 4.09 lbs 1854.6 g / 18.2 N
80 °C	-6.6%	1.81 kg / 3.99 lbs 1812.0 g / 17.8 N
100 °C	-28.8%	1.38 kg / 3.05 lbs 1381.3 g / 13.6 N

Classic neodymiums change their properties strength past the thermal threshold. Protect against heat – excessive heat can irreversibly demagnetize this magnet. With every degree above norm, the magnet's force momentarily decreases. Refrain from using this product in hot environments exceeding its working range. Exceeding the critical threshold will result in permanent loss of magnetic properties.

*Important note: Temperature resistance depends not only on the material grade, as well as the dimension ratios. Flat magnets (low permeance coefficient) may lose charge permanently at lower temperatures than taller cylinders. Red status in the table points to a risk of irreversible loss for this particular item.

Table 6: Two magnets (repulsion) - field range
MW 9x3 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Sliding Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	4.62 kg / 10.19 lbs 4 949 Gs	0.69 kg / 1.53 lbs 693 g / 6.8 N	N/A
1 mm	3.82 kg / 8.43 lbs 6 244 Gs	0.57 kg / 1.26 lbs 573 g / 5.6 N	3.44 kg / 7.58 lbs ~0 Gs
2 mm	3.02 kg / 6.65 lbs 5 548 Gs	0.45 kg / 1.00 lbs 453 g / 4.4 N	2.72 kg / 5.99 lbs ~0 Gs
3 mm	2.30 kg / 5.08 lbs 4 847 Gs	0.35 kg / 0.76 lbs 346 g / 3.4 N	2.07 kg / 4.57 lbs ~0 Gs
5 mm	1.25 kg / 2.76 lbs 3 575 Gs	0.19 kg / 0.41 lbs 188 g / 1.8 N	1.13 kg / 2.49 lbs ~0 Gs
10 mm	0.25 kg / 0.55 lbs 1 591 Gs	0.04 kg / 0.08 lbs 37 g / 0.4 N	0.22 kg / 0.49 lbs ~0 Gs
20 mm	0.02 kg / 0.04 lbs 410 Gs	0.00 kg / 0.01 lbs 2 g / 0.0 N	0.01 kg / 0.03 lbs ~0 Gs
50 mm	0.00 kg / 0.00 lbs 39 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 23 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 15 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 10 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 7 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 5 Gs	0.00 kg / 0.00 lbs 0 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs

Two magnets interact from a wider radius than a neodymium and metal combination. The connection of two magnets generates a stronger field and a wider radius of action. Planning to create a solid fastener? Utilize two neodymiums instead of one magnet and a steel. Exercise caution that when attracting two neodymiums, the pinch force is massive. The levitation is slightly lower than the attraction, but still large.
*Field value for N-N configuration is approximately ~0 Gs at the geometric center between the magnets (due to field cancellation).
* Estimates refer to friction force of two identical magnets (friction ~0.15 for Ni-Ni plating).

Table 7: Protective zones (electronics) - warnings
MW 9x3 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	4.5 cm
Hearing aid	10 Gs (1.0 mT)	3.5 cm
Mechanical watch	20 Gs (2.0 mT)	2.5 cm
Phone / Smartphone	40 Gs (4.0 mT)	2.0 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 electronics and pacemakers. These magnets generate a flux that disrupts operation of digital equipment. Remember: the invisible magnetic field passes through tissues and housings. Special caution must be exercised by people with hearing aids and drug dispensers. The risk also applies to: mechanical watches, car keys, membranes, and displays. Do not place the magnet near cards, hard drives, or sensitive navigation tools.

Table 8: Collisions (cracking risk) - warning
MW 9x3 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	37.23 km/h (10.34 m/s)	0.08 J
30 mm	64.34 km/h (17.87 m/s)	0.23 J
50 mm	83.06 km/h (23.07 m/s)	0.38 J
100 mm	117.47 km/h (32.63 m/s)	0.76 J

Neodymium magnets are very brittle – a strong collision with metal risks their cracking. Pay attention to connection velocity – a neodymium left loose becomes dangerous. Striking energy can cause material chips or injury to skin. Hold the magnet firmly during bringing near metal so it doesn't slam with momentum against the metal. A contact at a velocity of dozens of km/h almost guarantees destruction of the neodymium. Use safety goggles when handling with large magnets.

Table 9: Coating parameters (durability)
MW 9x3 / 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. Moisture resistance is crucial for installations in bathrooms or outdoors.

Table 10: Construction data (P_c)
MW 9x3 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	2 314 Mx	23.1 µWb
P_c Coefficient	0.44	Low (Flat)

Flux value emitted by the magnet pole. Essential parameter in coil applications as well as sensors. The P_c coefficient determines the magnet's operating point.

Table 11: Physics of underwater searching
MW 9x3 / N38

Environment	Effective steel pull	Effect
Air (land)	1.94 kg	Standard
Water (riverbed)	2.22 kg (+0.28 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.

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

1. Shear force

*Note: On a vertical wall, the magnet retains just a fraction of its max power.

2. Plate thickness effect

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

3. Heat tolerance

*For standard magnets, the safety limit is 80°C.

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 0.44

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.

Technical specification and ecology

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: 010108-2026

Magnet Unit Converter

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Kilograms (kg)

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The presented product is an exceptionally strong cylindrical magnet, composed of modern NdFeB material, which, at dimensions of Ø9x3 mm, guarantees the highest energy density. The MW 9x3 / N38 model is characterized by a tolerance of ±0.1mm and industrial build quality, making it an ideal solution for the most demanding engineers and designers. As a cylindrical magnet with significant force (approx. 1.94 kg), this product is in stock from our warehouse in Poland, ensuring lightning-fast order fulfillment. Furthermore, its triple-layer Ni-Cu-Ni coating shields it against corrosion in standard operating conditions, ensuring an aesthetic appearance and durability for years.

It finds application in modeling, advanced robotics, and broadly understood industry, serving as a fastening or actuating element. Thanks to the pull force of 18.99 N with a weight of only 1.43 g, this cylindrical magnet is indispensable in electronics and wherever low weight is crucial.

Since our magnets have a tolerance of ±0.1mm, the recommended way is to glue them into holes with a slightly larger diameter (e.g., 9.1 mm) using epoxy glues. To ensure stability in industry, specialized industrial adhesives are used, which do not react with the nickel coating and fill the gap, guaranteeing high repeatability of the connection.

Magnets N38 are suitable for 90% of applications in modeling and machine building, where excessive miniaturization with maximum force is not required. If you need even stronger magnets in the same volume (Ø9x3), 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 Ø9x3 mm, which, at a weight of 1.43 g, makes it an element with impressive magnetic energy density. The value of 18.99 N means that the magnet is capable of holding a weight many times exceeding its own mass of 1.43 g. The product has a [NiCuNi] coating, which protects the surface against external factors, giving it an aesthetic, silvery shine.

This rod magnet is magnetized axially (along the height of 3 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 through the diameter if your project requires it.

Advantages as well as disadvantages of rare earth magnets.

Benefits

Besides their exceptional strength, neodymium magnets offer the following advantages:

They virtually do not lose strength, because even after 10 years the decline in efficiency is only ~1% (based on calculations),
They have excellent resistance to weakening of magnetic properties due to external magnetic sources,
A magnet with a shiny gold surface looks better,
The surface of neodymium magnets generates a strong magnetic field – this is one of their assets,
Due to their durability and thermal resistance, neodymium magnets can operate (depending on the form) even at high temperatures reaching 230°C or more...
Thanks to modularity in designing and the capacity to customize to client solutions,
Huge importance in modern technologies – they are used in mass storage devices, drive modules, advanced medical instruments, also industrial machines.
Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in compact dimensions, which allows their use in miniature devices

Disadvantages

Characteristics of disadvantages of neodymium magnets: tips and applications.

To avoid cracks upon strong impacts, we suggest using special steel holders. Such a solution protects the magnet and simultaneously increases its durability.
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 recommend using waterproof magnets e.g. in rubber, plastic
Limited possibility of producing threads in the magnet and complex shapes - preferred is casing - magnet mounting.
Potential hazard to health – tiny shards of magnets can be dangerous, in case of ingestion, which gains importance in the context of child safety. Additionally, small components of these devices are able to complicate diagnosis medical in case of swallowing.
Due to complex production process, their price is relatively high,

Pull force analysis

Best holding force of the magnet in ideal parameters – what affects it?

The specified lifting capacity represents the maximum value, measured under laboratory conditions, namely:

using a plate made of low-carbon steel, functioning as a circuit closing element
with a thickness of at least 10 mm
with an ground contact surface
under conditions of ideal adhesion (surface-to-surface)
for force applied at a right angle (pull-off, not shear)
at standard ambient temperature

Determinants of lifting force in real conditions

It is worth knowing that the application force will differ influenced by the following factors, starting with the most relevant:

Gap between surfaces – every millimeter of separation (caused e.g. by veneer or dirt) diminishes the magnet efficiency, often by half at just 0.5 mm.
Load vector – highest force is reached only during perpendicular pulling. The resistance to sliding of the magnet along the plate is usually many times smaller (approx. 1/5 of the lifting capacity).
Substrate thickness – for full efficiency, the steel must be sufficiently thick. Thin sheet restricts the attraction force (the magnet "punches through" it).
Material composition – different alloys reacts the same. Alloy additives weaken the attraction effect.
Surface condition – smooth surfaces guarantee perfect abutment, which improves force. Uneven metal weaken the grip.
Heat – neodymium magnets have a negative temperature coefficient. When it is hot they lose power, and in frost gain strength (up to a certain limit).

Lifting capacity testing was performed on a smooth plate of optimal thickness, under a perpendicular pulling force, in contrast under parallel forces the load capacity is reduced by as much as 75%. Additionally, even a small distance between the magnet and the plate reduces the lifting capacity.

Safety rules for work with neodymium magnets

Crushing risk

Mind your fingers. Two large magnets will join immediately with a force of several hundred kilograms, destroying anything in their path. Be careful!

Phone sensors

An intense magnetic field negatively affects the functioning of magnetometers in phones and GPS navigation. Keep magnets close to a device to avoid damaging the sensors.

Swallowing risk

Absolutely keep magnets away from children. Ingestion danger is significant, and the consequences of magnets clamping inside the body are tragic.

Protective goggles

Despite metallic appearance, neodymium is brittle and cannot withstand shocks. Avoid impacts, as the magnet may crumble into sharp, dangerous pieces.

Nickel coating and allergies

Certain individuals have a hypersensitivity to nickel, which is the typical protective layer for NdFeB magnets. Frequent touching might lead to an allergic reaction. We strongly advise wear safety gloves.

Dust is flammable

Fire warning: Neodymium dust is explosive. Do not process magnets in home conditions as this risks ignition.

Caution required

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

Medical interference

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

Heat sensitivity

Do not overheat. Neodymium magnets are susceptible to heat. If you require resistance above 80°C, ask us about HT versions (H, SH, UH).

Protect data

Device Safety: Strong magnets can damage payment cards and sensitive devices (heart implants, hearing aids, mechanical watches).

Attention! Need more info? Read our article: Why are neodymium magnets dangerous?

MW 9x3 / N38 - cylindrical magnet

Technical data - MW 9x3 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Engineering simulation of the magnet - technical parameters

Table 1: Static force (pull vs distance) - characteristics MW 9x3 / N38

Table 2: Sliding load (vertical surface) MW 9x3 / N38

Table 3: Vertical assembly (sliding) - vertical pull MW 9x3 / N38

Table 4: Steel thickness (substrate influence) - sheet metal selection MW 9x3 / N38

Table 5: Thermal stability (stability) - thermal limit MW 9x3 / N38

Table 6: Two magnets (repulsion) - field range MW 9x3 / N38

Table 7: Protective zones (electronics) - warnings MW 9x3 / N38

Table 8: Collisions (cracking risk) - warning MW 9x3 / N38

Table 9: Coating parameters (durability) MW 9x3 / N38

Table 10: Construction data (Pc) MW 9x3 / N38

Table 11: Physics of underwater searching MW 9x3 / N38

1. Shear force

2. Plate thickness effect

3. Heat tolerance

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

Chemical composition

Ecology and recycling (GPSR)

Magnet pull force

Field Strength

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Advantages as well as disadvantages of rare earth magnets.

Benefits

Disadvantages

Pull force analysis

Best holding force of the magnet in ideal parameters – what affects it?

Determinants of lifting force in real conditions

Safety rules for work with neodymium magnets

Crushing risk

Phone sensors

Swallowing risk

Protective goggles

Nickel coating and allergies

Dust is flammable

Caution required

Medical interference

Heat sensitivity

Protect data

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (pull vs distance) - characteristics
MW 9x3 / N38

Table 2: Sliding load (vertical surface)
MW 9x3 / N38

Table 3: Vertical assembly (sliding) - vertical pull
MW 9x3 / N38

Table 4: Steel thickness (substrate influence) - sheet metal selection
MW 9x3 / N38

Table 5: Thermal stability (stability) - thermal limit
MW 9x3 / N38

Table 6: Two magnets (repulsion) - field range
MW 9x3 / N38

Table 7: Protective zones (electronics) - warnings
MW 9x3 / N38

Table 8: Collisions (cracking risk) - warning
MW 9x3 / N38

Table 9: Coating parameters (durability)
MW 9x3 / N38

Table 10: Construction data (P_c)
MW 9x3 / N38

Table 11: Physics of underwater searching
MW 9x3 / N38