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MW 12x4 / 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 010019

GTIN/EAN: 5906301810186

5.00

Diameter Ø

12 mm [±0,1 mm]

Height

4 mm [±0,1 mm]

Weight

3.39 g

Magnetization Direction

↑ axial

Load capacity

3.45 kg / 33.81 N

Magnetic Induction

343.64 mT / 3436 Gs

Coating

[NiCuNi] Nickel

technical specifications »

1.353 ZŁ with VAT / pcs + price for transport

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Technical - MW 12x4 / N38 - cylindrical magnet

Specification / characteristics - MW 12x4 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010019
GTIN/EAN	5906301810186
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	12 mm [±0,1 mm]
Height	4 mm [±0,1 mm]
Weight	3.39 g
Magnetization Direction	↑ axial
Load capacity ~ ?	3.45 kg / 33.81 N
Magnetic Induction ~ ?	343.64 mT / 3436 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 12x4 / 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 modeling of the product - report

These values represent the result of a mathematical simulation. Values are based on models for the class Nd₂Fe₁₄B. Actual conditions may differ from theoretical values. Use these calculations as a supplementary guide during assembly planning.

Table 1: Static force (pull vs distance) - characteristics
MW 12x4 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	3435 Gs 343.5 mT	3.45 kg / 7.61 lbs 3450.0 g / 33.8 N	medium risk
1 mm	2950 Gs 295.0 mT	2.54 kg / 5.61 lbs 2544.7 g / 25.0 N	medium risk
2 mm	2423 Gs 242.3 mT	1.72 kg / 3.79 lbs 1717.5 g / 16.8 N	low risk
3 mm	1935 Gs 193.5 mT	1.09 kg / 2.41 lbs 1094.6 g / 10.7 N	low risk
5 mm	1190 Gs 119.0 mT	0.41 kg / 0.91 lbs 413.8 g / 4.1 N	low risk
10 mm	382 Gs 38.2 mT	0.04 kg / 0.09 lbs 42.7 g / 0.4 N	low risk
15 mm	156 Gs 15.6 mT	0.01 kg / 0.02 lbs 7.1 g / 0.1 N	low risk
20 mm	76 Gs 7.6 mT	0.00 kg / 0.00 lbs 1.7 g / 0.0 N	low risk
30 mm	26 Gs 2.6 mT	0.00 kg / 0.00 lbs 0.2 g / 0.0 N	low risk
50 mm	6 Gs 0.6 mT	0.00 kg / 0.00 lbs 0.0 g / 0.0 N	low risk

Magnetic force drops drastically per each millimeter of spacing. Keep in mind that even the smallest gap (e.g., dirt, paint, rust) noticeably reduces the pull force. Neodymiums work strongest during direct contact; air break drastically cuts the power. Notice how quickly the pull force plummet, when the product does not adhere directly to the metal substrate. When designing the assembly, discard redundant distances.

Table 2: Sliding hold (wall)
MW 12x4 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	0.69 kg / 1.52 lbs 690.0 g / 6.8 N
1 mm	Stal (~0.2)	0.51 kg / 1.12 lbs 508.0 g / 5.0 N
2 mm	Stal (~0.2)	0.34 kg / 0.76 lbs 344.0 g / 3.4 N
3 mm	Stal (~0.2)	0.22 kg / 0.48 lbs 218.0 g / 2.1 N
5 mm	Stal (~0.2)	0.08 kg / 0.18 lbs 82.0 g / 0.8 N
10 mm	Stal (~0.2)	0.01 kg / 0.02 lbs 8.0 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

This section shows the approximate holding capacity sufficient to start the sliding of the magnet down against a vertical steel plate (considering standard friction coefficient). This value depends on the air gap between the magnet and the metal.

Table 3: Vertical assembly (shearing) - vertical pull
MW 12x4 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	1.04 kg / 2.28 lbs 1035.0 g / 10.2 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.69 kg / 1.52 lbs 690.0 g / 6.8 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.35 kg / 0.76 lbs 345.0 g / 3.4 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	1.73 kg / 3.80 lbs 1725.0 g / 16.9 N

When placing a magnet on a upright plane (e.g., a fridge), it you can count on just approx. 20%-30% of nominal attraction strength. Gravity and a weak degree of grip influence the fact that magnets slide down faster than they pop off the substrate. Planning a vertical fastening? Note that the sliding force is much weaker than the maximum static pull force. On a painted metal, the holder will give way down under a much lighter cargo. Using a rubber layer can drastically raise the stability.

Table 4: Steel thickness (substrate influence) - power losses
MW 12x4 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.35 kg / 0.76 lbs 345.0 g / 3.4 N
1 mm	25%	0.86 kg / 1.90 lbs 862.5 g / 8.5 N
2 mm	50%	1.73 kg / 3.80 lbs 1725.0 g / 16.9 N
3 mm	75%	2.59 kg / 5.70 lbs 2587.5 g / 25.4 N
5 mm	100%	3.45 kg / 7.61 lbs 3450.0 g / 33.8 N
10 mm	100%	3.45 kg / 7.61 lbs 3450.0 g / 33.8 N
11 mm	100%	3.45 kg / 7.61 lbs 3450.0 g / 33.8 N
12 mm	100%	3.45 kg / 7.61 lbs 3450.0 g / 33.8 N

A too thin steel is incapable of conduct the entire magnetic field, which weakens actual performance of the magnet. Should you install a neodymium to a weak sheet, the magnetism will pass right through and the holding will be smaller. To squeeze 100% of this neodymium's potential, you need a suitably thick piece of steel. The saturation phenomenon means that on thin elements (e.g., car bodies), the magnet holds weaker. We suggest choosing the steel cross-section from these parameters.

Table 5: Thermal resistance (stability) - resistance threshold
MW 12x4 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	3.45 kg / 7.61 lbs 3450.0 g / 33.8 N	OK
40 °C	-2.2%	3.37 kg / 7.44 lbs 3374.1 g / 33.1 N	OK
60 °C	-4.4%	3.30 kg / 7.27 lbs 3298.2 g / 32.4 N
80 °C	-6.6%	3.22 kg / 7.10 lbs 3222.3 g / 31.6 N
100 °C	-28.8%	2.46 kg / 5.42 lbs 2456.4 g / 24.1 N

Classic neodymiums change their properties parameters after exceeding the maximum temperature. Watch out for overheating – excessive heat can irreversibly damage this magnet. As the temperature rises, the neodymium's capacity momentarily drops. Do not use this product close to heaters higher than its operating temperature limit. Ignoring the limit will lead to permanent loss of magnetism.

*Technical advisory: Heat tolerance depends not only on the material grade, but also on the magnet's shape. Thin magnets (pancake types) may lose charge permanently under lower heat stress than taller cylinders. Red status in the table points to permanent field degradation for this particular item.

Table 6: Magnet-Magnet interaction (repulsion) - field range
MW 12x4 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Strength (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	8.23 kg / 18.13 lbs 4 952 Gs	1.23 kg / 2.72 lbs 1234 g / 12.1 N	N/A
1 mm	7.16 kg / 15.79 lbs 6 410 Gs	1.07 kg / 2.37 lbs 1074 g / 10.5 N	6.45 kg / 14.21 lbs ~0 Gs
2 mm	6.07 kg / 13.38 lbs 5 900 Gs	0.91 kg / 2.01 lbs 910 g / 8.9 N	5.46 kg / 12.04 lbs ~0 Gs
3 mm	5.03 kg / 11.09 lbs 5 372 Gs	0.75 kg / 1.66 lbs 754 g / 7.4 N	4.53 kg / 9.98 lbs ~0 Gs
5 mm	3.29 kg / 7.25 lbs 4 342 Gs	0.49 kg / 1.09 lbs 493 g / 4.8 N	2.96 kg / 6.52 lbs ~0 Gs
10 mm	0.99 kg / 2.18 lbs 2 379 Gs	0.15 kg / 0.33 lbs 148 g / 1.5 N	0.89 kg / 1.96 lbs ~0 Gs
20 mm	0.10 kg / 0.22 lbs 764 Gs	0.02 kg / 0.03 lbs 15 g / 0.1 N	0.09 kg / 0.20 lbs ~0 Gs
50 mm	0.00 kg / 0.00 lbs 85 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 52 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 34 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 23 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 17 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 12 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 much further distance than a magnet and sheet setup. The setup of two magnets generates a stronger field and a further horizon of operation. Designing a solid fastener? Utilize two neodymiums instead of one magnet and a striker plate. Be careful that when connecting a pair of magnets, the impact force is extreme. The repulsion force is marginally weaker than the connection force, but still large.
*The magnetic induction for N-N configuration drops to ~0 Gs in the exact middle of the gap (resulting from vector opposition).
Attention: Figures refer to sliding force of two matching neodymium magnets (friction coefficient ~0.15 for Ni-Ni coating).

Table 7: Hazards (electronics) - precautionary measures
MW 12x4 / 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
Phone / Smartphone	40 Gs (4.0 mT)	3.0 cm
Car key	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 serious hazard to electronics and medical implants. These neodymiums generate a field that destroys function of sensitive medical devices. Remember: the invisible magnetic field penetrates the body and housings. Special caution must be taken by people with hearing aids and drug dispensers. Influence will be felt by: automatic timepieces, remotes, membranes, and displays. Do not place the magnet near cards, HDD media, or precise measuring instruments.

Table 8: Collisions (kinetic energy) - collision effects
MW 12x4 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	32.42 km/h (9.01 m/s)	0.14 J
30 mm	55.73 km/h (15.48 m/s)	0.41 J
50 mm	71.94 km/h (19.98 m/s)	0.68 J
100 mm	101.74 km/h (28.26 m/s)	1.35 J

Neodymium magnets are prone to chipping – a strong collision with metal risks their cracking. Pay attention to connection velocity – a neodymium left loose speeds with massive force. Striking energy can cause material chips or dangerous crushing to skin. Always hold the magnet during bringing near metal so it doesn't hit with great force against the steel surface. A contact at a velocity of dozens of km/h means shattering of the neodymium. Wear eye protection when playing with large magnets.

Table 9: Coating parameters (durability)
MW 12x4 / 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)

Neodymium magnets are highly susceptible to corrosion without proper protection. Improper coating selection is the most common cause of magnet failure over time.

Table 10: Construction data (Flux)
MW 12x4 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	4 114 Mx	41.1 µWb
P_c Coefficient	0.44	Low (Flat)

Total magnetic flux emitted by the pole surface. Key data for generator designers and motors. The P_c coefficient determines the working geometry.

Table 11: Submerged application
MW 12x4 / N38

Environment	Effective steel pull	Effect
Air (land)	3.45 kg	Standard
Water (riverbed)	3.95 kg (+0.50 kg buoyancy gain)	+14.5%

Rust risk: 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. Buoyancy helps in lifting finds.

1. Vertical hold

*Warning: On a vertical wall, the magnet retains merely ~20% of its perpendicular strength.

2. Efficiency vs thickness

*Thin metal sheet (e.g. 0.5mm PC case) severely reduces 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) = 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.

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%

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: 010019-2026

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MPL 40x10x4 / N38 - lamellar magnet

4.87 ZŁ brutto / pcs

This product is an exceptionally strong cylindrical magnet, composed of modern NdFeB material, which, with dimensions of Ø12x4 mm, guarantees maximum efficiency. The MW 12x4 / N38 component boasts high dimensional repeatability and professional build quality, making it a perfect solution for the most demanding engineers and designers. As a magnetic rod with impressive force (approx. 3.45 kg), this product is in stock from our warehouse in Poland, ensuring rapid order fulfillment. Additionally, its Ni-Cu-Ni coating shields it against corrosion in standard operating conditions, ensuring an aesthetic appearance and durability for years.

It successfully proves itself in modeling, advanced robotics, and broadly understood industry, serving as a positioning or actuating element. Thanks to the high power of 33.81 N with a weight of only 3.39 g, this cylindrical magnet is indispensable in miniature devices and wherever every gram matters.

Due to the delicate structure of the ceramic sinter, we absolutely advise against force-fitting (so-called press-fit), as this risks chipping the coating of this precision component. To ensure stability in industry, anaerobic resins are used, which are safe for nickel and fill the gap, guaranteeing high repeatability of the connection.

Magnets N38 are suitable for the majority of applications in modeling and machine building, where extreme miniaturization with maximum force is not required. If you need even stronger magnets in the same volume (Ø12x4), 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 12 mm and height 4 mm. The value of 33.81 N means that the magnet is capable of holding a weight many times exceeding its own mass of 3.39 g. The product has a [NiCuNi] coating, which protects the surface 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 12 mm. Such an arrangement is standard when connecting magnets in stacks (e.g., in filters) or when mounting in sockets at the bottom of a hole. On request, we can also produce versions magnetized diametrically if your project requires it.

Strengths and weaknesses of neodymium magnets.

Advantages

Apart from their notable power, neodymium magnets have these key benefits:

Their magnetic field remains stable, and after around ten years it drops only by ~1% (theoretically),
They feature excellent resistance to weakening of magnetic properties due to opposing magnetic fields,
The use of an metallic finish of noble metals (nickel, gold, silver) causes the element to be more visually attractive,
Magnetic induction on the working layer of the magnet is very high,
Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and can function (depending on the form) even at a temperature of 230°C or more...
In view of the option of free molding and customization to custom requirements, magnetic components can be created in a wide range of geometric configurations, which amplifies use scope,
Wide application in innovative solutions – they are utilized in computer drives, electric motors, diagnostic systems, also multitasking production systems.
Compactness – despite small sizes they provide effective action, making them ideal for precision applications

Disadvantages

What to avoid - cons of neodymium magnets and ways of using them

Susceptibility to cracking is one of their disadvantages. Upon strong impact they can fracture. We recommend keeping them in a special holder, which not only protects them against impacts but also increases their durability
We warn that neodymium magnets can lose their power at high temperatures. To prevent this, we suggest our specialized [AH] magnets, which work effectively even at 230°C.
Magnets exposed to a humid environment can corrode. Therefore while using outdoors, we recommend using waterproof magnets made of rubber, plastic or other material protecting against moisture
Due to limitations in realizing threads and complicated shapes in magnets, we propose using a housing - magnetic holder.
Possible danger to health – tiny shards of magnets can be dangerous, in case of ingestion, which is particularly important in the context of child safety. Furthermore, small components of these magnets are able to complicate diagnosis medical in case of swallowing.
High unit price – neodymium magnets are more expensive than other types of magnets (e.g. ferrite), which hinders application in large quantities

Holding force characteristics

Magnetic strength at its maximum – what contributes to it?

Magnet power is the result of a measurement for ideal contact conditions, taking into account:

on a base made of structural steel, perfectly concentrating the magnetic flux
possessing a thickness of min. 10 mm to ensure full flux closure
with a surface free of scratches
with total lack of distance (without paint)
under axial force vector (90-degree angle)
at ambient temperature approx. 20 degrees Celsius

Key elements affecting lifting force

Please note that the application force will differ subject to the following factors, in order of importance:

Gap (betwixt the magnet and the metal), because even a tiny clearance (e.g. 0.5 mm) results in a reduction in lifting capacity by up to 50% (this also applies to varnish, corrosion or dirt).
Pull-off angle – note that the magnet has greatest strength perpendicularly. Under shear forces, the capacity drops significantly, often to levels of 20-30% of the maximum value.
Element thickness – to utilize 100% power, the steel must be adequately massive. Paper-thin metal restricts the lifting capacity (the magnet "punches through" it).
Chemical composition of the base – low-carbon steel attracts best. Alloy admixtures lower magnetic permeability and holding force.
Surface finish – ideal contact is possible only on polished steel. Any scratches and bumps create air cushions, weakening the magnet.
Temperature influence – hot environment weakens magnetic field. Too high temperature can permanently damage the magnet.

Lifting capacity testing was conducted on plates with a smooth surface of optimal thickness, under perpendicular forces, in contrast under shearing force the holding force is lower. Moreover, even a minimal clearance between the magnet and the plate reduces the lifting capacity.

Precautions when working with neodymium magnets

Physical harm

Pinching hazard: The pulling power is so immense that it can cause blood blisters, pinching, and broken bones. Protective gloves are recommended.

Risk of cracking

NdFeB magnets are ceramic materials, which means they are prone to chipping. Collision of two magnets leads to them shattering into small pieces.

Danger to the youngest

Neodymium magnets are not intended for children. Accidental ingestion of a few magnets can lead to them attracting across intestines, which constitutes a critical condition and necessitates immediate surgery.

Keep away from computers

Avoid bringing magnets near a purse, laptop, or screen. The magnetic field can destroy these devices and wipe information from cards.

Do not underestimate power

Before starting, read the rules. Sudden snapping can destroy the magnet or hurt your hand. Think ahead.

Fire risk

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

Precision electronics

Navigation devices and smartphones are highly susceptible to magnetism. Close proximity with a strong magnet can permanently damage the internal compass in your phone.

Allergy Warning

Some people have a hypersensitivity to Ni, which is the common plating for NdFeB magnets. Extended handling might lead to skin redness. We suggest wear safety gloves.

Warning for heart patients

Patients with a pacemaker must keep an large gap from magnets. The magnetism can disrupt the functioning of the life-saving device.

Operating temperature

Control the heat. Heating the magnet above 80 degrees Celsius will destroy its magnetic structure and pulling force.

Caution! Need more info? Check our post: Why are neodymium magnets dangerous?

MW 12x4 / N38 - cylindrical magnet

Technical - MW 12x4 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical modeling of the product - report

Table 1: Static force (pull vs distance) - characteristics MW 12x4 / N38

Table 2: Sliding hold (wall) MW 12x4 / N38

Table 3: Vertical assembly (shearing) - vertical pull MW 12x4 / N38

Table 4: Steel thickness (substrate influence) - power losses MW 12x4 / N38

Table 5: Thermal resistance (stability) - resistance threshold MW 12x4 / N38

Table 6: Magnet-Magnet interaction (repulsion) - field range MW 12x4 / N38

Table 7: Hazards (electronics) - precautionary measures MW 12x4 / N38

Table 8: Collisions (kinetic energy) - collision effects MW 12x4 / N38

Table 9: Coating parameters (durability) MW 12x4 / N38

Table 10: Construction data (Flux) MW 12x4 / N38

Table 11: Submerged application MW 12x4 / N38

1. Vertical hold

2. Efficiency vs thickness

3. Power loss vs temp

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

Elemental analysis

Ecology and recycling (GPSR)

Magnet pull force

Magnetic Induction

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Strengths and weaknesses of neodymium magnets.

Advantages

Disadvantages

Holding force characteristics

Magnetic strength at its maximum – what contributes to it?

Key elements affecting lifting force

Precautions when working with neodymium magnets

Physical harm

Risk of cracking

Danger to the youngest

Keep away from computers

Do not underestimate power

Fire risk

Precision electronics

Allergy Warning

Warning for heart patients

Operating temperature

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (pull vs distance) - characteristics
MW 12x4 / N38

Table 2: Sliding hold (wall)
MW 12x4 / N38

Table 3: Vertical assembly (shearing) - vertical pull
MW 12x4 / N38

Table 4: Steel thickness (substrate influence) - power losses
MW 12x4 / N38

Table 5: Thermal resistance (stability) - resistance threshold
MW 12x4 / N38

Table 6: Magnet-Magnet interaction (repulsion) - field range
MW 12x4 / N38

Table 7: Hazards (electronics) - precautionary measures
MW 12x4 / N38

Table 8: Collisions (kinetic energy) - collision effects
MW 12x4 / N38

Table 9: Coating parameters (durability)
MW 12x4 / N38

Table 10: Construction data (Flux)
MW 12x4 / N38

Table 11: Submerged application
MW 12x4 / N38