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MW 14x3 / 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 010025

GTIN/EAN: 5906301810247

5.00

Diameter Ø

14 mm [±0,1 mm]

Height

3 mm [±0,1 mm]

Weight

3.46 g

Magnetization Direction

↑ axial

Load capacity

2.76 kg / 27.06 N

Magnetic Induction

244.11 mT / 2441 Gs

Coating

[NiCuNi] Nickel

technical details »

1.845 ZŁ with VAT / pcs + price for transport

1.500 ZŁ net + 23% VAT / pcs

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Detailed specification - MW 14x3 / N38 - cylindrical magnet

Specification / characteristics - MW 14x3 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010025
GTIN/EAN	5906301810247
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	14 mm [±0,1 mm]
Height	3 mm [±0,1 mm]
Weight	3.46 g
Magnetization Direction	↑ axial
Load capacity ~ ?	2.76 kg / 27.06 N
Magnetic Induction ~ ?	244.11 mT / 2441 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 14x3 / 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 simulation of the magnet - data

Presented information constitute the direct effect of a mathematical calculation. Results rely on algorithms for the class Nd₂Fe₁₄B. Actual conditions may differ. Please consider these calculations as a supplementary guide when designing systems.

Table 1: Static pull force (pull vs distance) - interaction chart
MW 14x3 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	2440 Gs 244.0 mT	2.76 kg / 6.08 lbs 2760.0 g / 27.1 N	medium risk
1 mm	2199 Gs 219.9 mT	2.24 kg / 4.94 lbs 2241.6 g / 22.0 N	medium risk
2 mm	1900 Gs 190.0 mT	1.67 kg / 3.69 lbs 1673.8 g / 16.4 N	low risk
3 mm	1593 Gs 159.3 mT	1.18 kg / 2.59 lbs 1175.5 g / 11.5 N	low risk
5 mm	1062 Gs 106.2 mT	0.52 kg / 1.15 lbs 523.0 g / 5.1 N	low risk
10 mm	380 Gs 38.0 mT	0.07 kg / 0.15 lbs 66.8 g / 0.7 N	low risk
15 mm	160 Gs 16.0 mT	0.01 kg / 0.03 lbs 11.9 g / 0.1 N	low risk
20 mm	79 Gs 7.9 mT	0.00 kg / 0.01 lbs 2.9 g / 0.0 N	low risk
30 mm	27 Gs 2.7 mT	0.00 kg / 0.00 lbs 0.3 g / 0.0 N	low risk
50 mm	7 Gs 0.7 mT	0.00 kg / 0.00 lbs 0.0 g / 0.0 N	low risk

Magnetic force decreases sharply with every mm of spacing. Remember that every additional insulation layer (e.g., contamination, paint, dust) significantly weakens the grip. Neodymiums work most effectively at the point of direct contact; gap weakens the force. Observe how flashily the parameters drop, when the magnet does not touch flatly to the metal substrate. When designing the arrangement, discard unnecessary gaps.

Table 2: Shear hold (wall)
MW 14x3 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	0.55 kg / 1.22 lbs 552.0 g / 5.4 N
1 mm	Stal (~0.2)	0.45 kg / 0.99 lbs 448.0 g / 4.4 N
2 mm	Stal (~0.2)	0.33 kg / 0.74 lbs 334.0 g / 3.3 N
3 mm	Stal (~0.2)	0.24 kg / 0.52 lbs 236.0 g / 2.3 N
5 mm	Stal (~0.2)	0.10 kg / 0.23 lbs 104.0 g / 1.0 N
10 mm	Stal (~0.2)	0.01 kg / 0.03 lbs 14.0 g / 0.1 N
15 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 2.0 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 following data shows the theoretical holding capacity needed to start the downward movement of the magnet vertically against a vertical steel wall (considering typical friction coefficient). This parameter depends on the air gap between the magnet and the surface.

Table 3: Wall mounting (sliding) - vertical pull
MW 14x3 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	0.83 kg / 1.83 lbs 828.0 g / 8.1 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.55 kg / 1.22 lbs 552.0 g / 5.4 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.28 kg / 0.61 lbs 276.0 g / 2.7 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	1.38 kg / 3.04 lbs 1380.0 g / 13.5 N

When mounting a magnet on a vertical plane (e.g., a car body), it you can count on only approx. 1/5 of its nominal power. Gravity as well as a weak degree of grip cause that magnets slip easier than they pop off the substrate. Designing a vertical fastening? Consider that the shear force is significantly lower than the maximum static pull force. On a slippery surface, the holder will give way down under a significantly smaller load. Using a rubber pad can effectively raise the stability.

Table 4: Steel thickness (saturation) - power losses
MW 14x3 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.28 kg / 0.61 lbs 276.0 g / 2.7 N
1 mm	25%	0.69 kg / 1.52 lbs 690.0 g / 6.8 N
2 mm	50%	1.38 kg / 3.04 lbs 1380.0 g / 13.5 N
3 mm	75%	2.07 kg / 4.56 lbs 2070.0 g / 20.3 N
5 mm	100%	2.76 kg / 6.08 lbs 2760.0 g / 27.1 N
10 mm	100%	2.76 kg / 6.08 lbs 2760.0 g / 27.1 N
11 mm	100%	2.76 kg / 6.08 lbs 2760.0 g / 27.1 N
12 mm	100%	2.76 kg / 6.08 lbs 2760.0 g / 27.1 N

A too thin steel cannot focus the entire magnetic field, which wastes potential of the magnet. If you attach a powerful product to a too thin substrate, the field will pass right through and the attraction force will be weaker. To utilize full efficiency of this neodymium's power, you need a suitably thick backing of metal. The saturation phenomenon causes that on sheet metal structures (e.g., thin profiles), the magnet shows lower pull force. We suggest choosing the steel thickness based on the following data.

Table 5: Working in heat (material behavior) - thermal limit
MW 14x3 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	2.76 kg / 6.08 lbs 2760.0 g / 27.1 N	OK
40 °C	-2.2%	2.70 kg / 5.95 lbs 2699.3 g / 26.5 N	OK
60 °C	-4.4%	2.64 kg / 5.82 lbs 2638.6 g / 25.9 N
80 °C	-6.6%	2.58 kg / 5.68 lbs 2577.8 g / 25.3 N
100 °C	-28.8%	1.97 kg / 4.33 lbs 1965.1 g / 19.3 N

Standard neodymium magnets change their properties power above the temperature limit. Avoid high temperatures – high temperature can irreversibly damage this magnet. With every degree above norm, the neodymium's capacity momentarily decreases. Do not use this product close to ovens higher than its working range. Ignoring the limit will cause destruction of magnetic properties.

*Technical advisory: Temperature resistance depends not only on the material grade, and the Permeance Coefficient Pc. Flat magnets (low permeance coefficient) may lose charge permanently at lower temperatures compared to rod 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 14x3 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Lateral Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	5.65 kg / 12.46 lbs 4 030 Gs	0.85 kg / 1.87 lbs 848 g / 8.3 N	N/A
1 mm	5.16 kg / 11.37 lbs 4 662 Gs	0.77 kg / 1.71 lbs 773 g / 7.6 N	4.64 kg / 10.23 lbs ~0 Gs
2 mm	4.59 kg / 10.12 lbs 4 398 Gs	0.69 kg / 1.52 lbs 689 g / 6.8 N	4.13 kg / 9.11 lbs ~0 Gs
3 mm	4.00 kg / 8.82 lbs 4 107 Gs	0.60 kg / 1.32 lbs 600 g / 5.9 N	3.60 kg / 7.94 lbs ~0 Gs
5 mm	2.89 kg / 6.37 lbs 3 490 Gs	0.43 kg / 0.96 lbs 434 g / 4.3 N	2.60 kg / 5.74 lbs ~0 Gs
10 mm	1.07 kg / 2.36 lbs 2 125 Gs	0.16 kg / 0.35 lbs 161 g / 1.6 N	0.96 kg / 2.12 lbs ~0 Gs
20 mm	0.14 kg / 0.30 lbs 759 Gs	0.02 kg / 0.05 lbs 21 g / 0.2 N	0.12 kg / 0.27 lbs ~0 Gs
50 mm	0.00 kg / 0.00 lbs 89 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 54 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 36 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 25 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 18 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 13 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 significantly greater distance than a magnet and steel combination. Such a system of two magnets produces a massive flux and a larger range of performance. Planning to create a solid fastener? Use a pair of magnets instead of a neodymium and a striker plate. Be careful that when connecting a pair of magnets, the impact force is huge. The repulsion force is marginally weaker than the attraction, but still large.
*Flux density for N-N configuration drops to ~0 Gs in the exact middle of the gap (resulting from vector opposition).
Important: Results apply to sliding force of a pair of same magnets (friction ~0.15 for Ni-Ni coating).

Table 7: Hazards (implants) - warnings
MW 14x3 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	5.5 cm
Hearing aid	10 Gs (1.0 mT)	4.5 cm
Mechanical watch	20 Gs (2.0 mT)	3.5 cm
Mobile device	40 Gs (4.0 mT)	3.0 cm
Remote	50 Gs (5.0 mT)	2.5 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 is a large risk to electronics as well as pacemakers. These NdFeB products produce a field that destroys function of sensitive medical devices. Remember: the unseen radiation penetrates the body and glass. Exceptional care must be exercised by people with hearing aids and drug dispensers. The risk also applies to: mechanical watches, remotes, membranes, and displays. Do not bring the product near payment cards, hard drives, or sensitive navigation tools.

Table 8: Dynamics (cracking risk) - warning
MW 14x3 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	28.91 km/h (8.03 m/s)	0.11 J
30 mm	49.34 km/h (13.71 m/s)	0.32 J
50 mm	63.69 km/h (17.69 m/s)	0.54 J
100 mm	90.07 km/h (25.02 m/s)	1.08 J

Magnetic elements are very brittle – a strong collision with metal risks their cracking. Control the attraction moment – a neodymium left loose turns into a projectile. Striking energy can trigger coating fragments or dangerous crushing to fingers. Hold the magnet firmly during mounting so it doesn't hit violently against the steel surface. A contact at a velocity of dozens of km/h ends with a crack of the neodymium. Use safety goggles when working with large magnets.

Table 9: Anti-corrosion coating durability
MW 14x3 / 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. Moisture resistance is crucial for installations in bathrooms or outdoors.

Table 10: Electrical data (P_c)
MW 14x3 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	4 301 Mx	43.0 µWb
P_c Coefficient	0.31	Low (Flat)

Total magnetic flux passing through the magnet pole. Key data in coil applications as well as sensors. The P_c coefficient determines the magnet's operating point.

Table 11: Physics of underwater searching
MW 14x3 / N38

Environment	Effective steel pull	Effect
Air (land)	2.76 kg	Standard
Water (riverbed)	3.16 kg (+0.40 kg buoyancy gain)	+14.5%

Corrosion warning: Standard nickel requires drying after every contact with moisture; lack of maintenance will lead to rust spots.

The magnetic field penetrates through water without any losses. As a result, your magnet will pull a heavier object from the bottom than if you lifted it in the air.

1. Shear force

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

2. Steel saturation

*Thin steel (e.g. computer case) significantly weakens the holding force.

3. Temperature resistance

*For N38 material, the critical limit is 80°C.

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 0.31

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.

Technical specification and ecology

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%

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: 010025-2026

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MW 5x2 / N38 - cylindrical magnet

0.1845 ZŁ brutto / pcs

The offered product is a very strong cylinder magnet, composed of advanced NdFeB material, which, with dimensions of Ø14x3 mm, guarantees maximum efficiency. The MW 14x3 / N38 model boasts high dimensional repeatability and professional build quality, making it an excellent solution for the most demanding engineers and designers. As a cylindrical magnet with impressive force (approx. 2.76 kg), this product is in stock from our European logistics center, ensuring rapid order fulfillment. Moreover, its Ni-Cu-Ni coating secures it against corrosion in typical operating conditions, ensuring an aesthetic appearance and durability for years.

This model is created for building generators, advanced sensors, and efficient magnetic separators, where field concentration on a small surface counts. Thanks to the high power of 27.06 N with a weight of only 3.46 g, this rod 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., 14.1 mm) using epoxy glues. To ensure stability in automation, specialized industrial adhesives are used, which are safe for nickel and fill the gap, guaranteeing durability of the connection.

Magnets N38 are suitable for 90% of applications in automation and machine building, where excessive miniaturization with maximum force is not required. If you need even stronger magnets in the same volume (Ø14x3), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard available off-the-shelf in our store.

The presented product is a neodymium magnet with precisely defined parameters: diameter 14 mm and height 3 mm. The value of 27.06 N means that the magnet is capable of holding a weight many times exceeding its own mass of 3.46 g. The product has a [NiCuNi] coating, which secures it 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 14 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 through the diameter if your project requires it.

Pros and cons of rare earth magnets.

Pros

Apart from their strong magnetism, neodymium magnets have these key benefits:

They virtually do not lose strength, because even after ten years the performance loss is only ~1% (according to literature),
They maintain their magnetic properties even under close interference source,
Thanks to the glossy finish, the coating of nickel, gold-plated, or silver-plated gives an modern appearance,
They are known for high magnetic induction at the operating surface, which improves attraction properties,
Thanks to resistance to high temperature, they are able to function (depending on the form) even at temperatures up to 230°C and higher...
Considering the option of precise molding and customization to custom requirements, magnetic components can be modeled in a broad palette of forms and dimensions, which increases their versatility,
Huge importance in modern technologies – they are commonly used in mass storage devices, electric motors, medical devices, and other advanced devices.
Relatively small size with high pulling force – neodymium magnets offer high power in compact dimensions, which enables their usage in small systems

Weaknesses

Cons of neodymium magnets: weaknesses and usage proposals

They are prone to damage upon heavy impacts. To avoid cracks, it is worth securing magnets using a steel holder. Such protection not only shields the magnet but also improves its resistance to damage
When exposed to high temperature, neodymium magnets experience a drop in force. Often, when the temperature exceeds 80°C, their strength decreases (depending on the size and shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
When exposed to humidity, magnets usually rust. For applications outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which prevent oxidation and corrosion.
Limited possibility of making threads in the magnet and complicated shapes - recommended is a housing - magnetic holder.
Possible danger resulting from small fragments of magnets pose a threat, if swallowed, which becomes key in the aspect of protecting the youngest. Additionally, tiny parts of these magnets can be problematic in diagnostics medical in case of swallowing.
With budget limitations the cost of neodymium magnets can be a barrier,

Holding force characteristics

Detachment force of the magnet in optimal conditions – what affects it?

The force parameter is a measurement result executed under standard conditions:

on a block made of structural steel, effectively closing the magnetic field
whose thickness reaches at least 10 mm
with an ideally smooth contact surface
under conditions of no distance (metal-to-metal)
under perpendicular force direction (90-degree angle)
in stable room temperature

Impact of factors on magnetic holding capacity in practice

Bear in mind that the application force will differ influenced by the following factors, starting with the most relevant:

Space between surfaces – every millimeter of distance (caused e.g. by varnish or unevenness) diminishes the magnet efficiency, often by half at just 0.5 mm.
Force direction – catalog parameter refers to pulling vertically. When attempting to slide, the magnet holds much less (typically approx. 20-30% of nominal force).
Steel thickness – insufficiently thick steel does not accept the full field, causing part of the power to be wasted to the other side.
Steel type – low-carbon steel attracts best. Alloy admixtures reduce magnetic properties and lifting capacity.
Surface condition – smooth surfaces ensure maximum contact, which increases field saturation. Rough surfaces reduce efficiency.
Temperature influence – high temperature weakens pulling force. Too high temperature can permanently demagnetize the magnet.

Lifting capacity was assessed by applying a steel plate with a smooth surface of optimal thickness (min. 20 mm), under perpendicular detachment force, however under parallel forces the holding force is lower. Additionally, even a minimal clearance between the magnet’s surface and the plate lowers the lifting capacity.

Warnings

Implant safety

Life threat: Neodymium magnets can turn off heart devices and defibrillators. Do not approach if you have medical devices.

Nickel coating and allergies

It is widely known that nickel (the usual finish) is a strong allergen. If you have an allergy, prevent direct skin contact or select versions in plastic housing.

Conscious usage

Handle with care. Neodymium magnets attract from a long distance and snap with massive power, often quicker than you can move away.

Swallowing risk

Product intended for adults. Tiny parts can be swallowed, leading to severe trauma. Keep out of reach of children and animals.

Compass and GPS

Navigation devices and mobile phones are extremely sensitive to magnetism. Close proximity with a strong magnet can permanently damage the internal compass in your phone.

Magnets are brittle

NdFeB magnets are ceramic materials, which means they are very brittle. Clashing of two magnets leads to them cracking into shards.

Flammability

Mechanical processing of NdFeB material carries a risk of fire hazard. Magnetic powder reacts violently with oxygen and is hard to extinguish.

Safe distance

Do not bring magnets close to a purse, laptop, or screen. The magnetic field can destroy these devices and wipe information from cards.

Heat warning

Watch the temperature. Heating the magnet above 80 degrees Celsius will ruin its magnetic structure and strength.

Pinching danger

Protect your hands. Two large magnets will snap together instantly with a force of several hundred kilograms, destroying anything in their path. Exercise extreme caution!

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

MW 14x3 / N38 - cylindrical magnet

Detailed specification - MW 14x3 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Technical simulation of the magnet - data

Table 1: Static pull force (pull vs distance) - interaction chart MW 14x3 / N38

Table 2: Shear hold (wall) MW 14x3 / N38

Table 3: Wall mounting (sliding) - vertical pull MW 14x3 / N38

Table 4: Steel thickness (saturation) - power losses MW 14x3 / N38

Table 5: Working in heat (material behavior) - thermal limit MW 14x3 / N38

Table 6: Two magnets (attraction) - field collision MW 14x3 / N38

Table 7: Hazards (implants) - warnings MW 14x3 / N38

Table 8: Dynamics (cracking risk) - warning MW 14x3 / N38

Table 9: Anti-corrosion coating durability MW 14x3 / N38

Table 10: Electrical data (Pc) MW 14x3 / N38

Table 11: Physics of underwater searching MW 14x3 / N38

1. Shear force

2. Steel saturation

3. Temperature resistance

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

Material specification

Sustainability

Force (pull)

Magnetic Induction

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MW 5x2 / N38 - cylindrical magnet

Pros and cons of rare earth magnets.

Pros

Weaknesses

Holding force characteristics

Detachment force of the magnet in optimal conditions – what affects it?

Impact of factors on magnetic holding capacity in practice

Warnings

Implant safety

Nickel coating and allergies

Conscious usage

Swallowing risk

Compass and GPS

Magnets are brittle

Flammability

Safe distance

Heat warning

Pinching danger

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (pull vs distance) - interaction chart
MW 14x3 / N38

Table 2: Shear hold (wall)
MW 14x3 / N38

Table 3: Wall mounting (sliding) - vertical pull
MW 14x3 / N38

Table 4: Steel thickness (saturation) - power losses
MW 14x3 / N38

Table 5: Working in heat (material behavior) - thermal limit
MW 14x3 / N38

Table 6: Two magnets (attraction) - field collision
MW 14x3 / N38

Table 7: Hazards (implants) - warnings
MW 14x3 / N38

Table 8: Dynamics (cracking risk) - warning
MW 14x3 / N38

Table 9: Anti-corrosion coating durability
MW 14x3 / N38

Table 10: Electrical data (P_c)
MW 14x3 / N38

Table 11: Physics of underwater searching
MW 14x3 / N38