Product available Ships tomorrow

MW 45x30 / 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 010073

GTIN/EAN: 5906301810728

Diameter Ø

45 mm [±0,1 mm]

Height

30 mm [±0,1 mm]

Weight

357.85 g

Magnetization Direction

↑ axial

Load capacity

69.46 kg / 681.39 N

Magnetic Induction

495.87 mT / 4959 Gs

Coating

[NiCuNi] Nickel

technical parameters »

136.80 ZŁ with VAT / pcs + price for transport

111.22 ZŁ net + 23% VAT / pcs

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Physical properties - MW 45x30 / N38 - cylindrical magnet

Specification / characteristics - MW 45x30 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010073
GTIN/EAN	5906301810728
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	45 mm [±0,1 mm]
Height	30 mm [±0,1 mm]
Weight	357.85 g
Magnetization Direction	↑ axial
Load capacity ~ ?	69.46 kg / 681.39 N
Magnetic Induction ~ ?	495.87 mT / 4959 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 45x30 / 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 assembly - data

The following data represent the direct effect of a mathematical simulation. Values were calculated on models for the class Nd₂Fe₁₄B. Operational parameters might slightly deviate from the simulation results. Please consider these data as a reference point during assembly planning.

Table 1: Static force (pull vs gap) - characteristics
MW 45x30 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	4958 Gs 495.8 mT	69.46 kg / 153.13 lbs 69460.0 g / 681.4 N	crushing
1 mm	4742 Gs 474.2 mT	63.55 kg / 140.11 lbs 63553.9 g / 623.5 N	crushing
2 mm	4523 Gs 452.3 mT	57.81 kg / 127.44 lbs 57805.8 g / 567.1 N	crushing
3 mm	4303 Gs 430.3 mT	52.33 kg / 115.36 lbs 52327.7 g / 513.3 N	crushing
5 mm	3870 Gs 387.0 mT	42.33 kg / 93.32 lbs 42329.9 g / 415.3 N	crushing
10 mm	2886 Gs 288.6 mT	23.53 kg / 51.88 lbs 23531.8 g / 230.8 N	crushing
15 mm	2106 Gs 210.6 mT	12.54 kg / 27.64 lbs 12537.0 g / 123.0 N	crushing
20 mm	1535 Gs 153.5 mT	6.66 kg / 14.68 lbs 6657.1 g / 65.3 N	strong
30 mm	845 Gs 84.5 mT	2.02 kg / 4.45 lbs 2018.9 g / 19.8 N	strong
50 mm	315 Gs 31.5 mT	0.28 kg / 0.62 lbs 279.5 g / 2.7 N	weak grip

Pulling power weakens drastically with every subsequent millimeter of spacing. Remember that even the smallest gap (e.g., contamination, paint, dust) significantly reduces the pull force. Neodymiums operate strongest in perfect adhesion; distance nullifies the power. See how rapidly the load capacity fall, when the product does not adhere flatly to the metal substrate. When calculating the arrangement, discard redundant distances.

Table 2: Shear load (vertical surface)
MW 45x30 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	13.89 kg / 30.63 lbs 13892.0 g / 136.3 N
1 mm	Stal (~0.2)	12.71 kg / 28.02 lbs 12710.0 g / 124.7 N
2 mm	Stal (~0.2)	11.56 kg / 25.49 lbs 11562.0 g / 113.4 N
3 mm	Stal (~0.2)	10.47 kg / 23.07 lbs 10466.0 g / 102.7 N
5 mm	Stal (~0.2)	8.47 kg / 18.66 lbs 8466.0 g / 83.1 N
10 mm	Stal (~0.2)	4.71 kg / 10.37 lbs 4706.0 g / 46.2 N
15 mm	Stal (~0.2)	2.51 kg / 5.53 lbs 2508.0 g / 24.6 N
20 mm	Stal (~0.2)	1.33 kg / 2.94 lbs 1332.0 g / 13.1 N
30 mm	Stal (~0.2)	0.40 kg / 0.89 lbs 404.0 g / 4.0 N
50 mm	Stal (~0.2)	0.06 kg / 0.12 lbs 56.0 g / 0.5 N

This section calculates the estimated force needed to start the shifting of the magnet down against a vertical steel plate (assuming standard friction). This value varies with the separation distance between the magnet and the metal.

Table 3: Wall mounting (sliding) - vertical pull
MW 45x30 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	20.84 kg / 45.94 lbs 20838.0 g / 204.4 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	13.89 kg / 30.63 lbs 13892.0 g / 136.3 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	6.95 kg / 15.31 lbs 6946.0 g / 68.1 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	34.73 kg / 76.57 lbs 34730.0 g / 340.7 N

When hanging a element on a upright surface (e.g., a board), it will only hold only about 1/5 of its nominal power. Gravitational force as well as a weak degree of grip influence the fact that holders move down easier than they detach. Want to create a vertical fastening? Consider that the sliding force is significantly lower than the maximum static pull force. On a smooth steel, the element will slide down under a much lighter cargo. Utilizing a rubberized coating can drastically increase the grip.

Table 4: Material efficiency (substrate influence) - sheet metal selection
MW 45x30 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	3%	2.32 kg / 5.10 lbs 2315.3 g / 22.7 N
1 mm	8%	5.79 kg / 12.76 lbs 5788.3 g / 56.8 N
2 mm	17%	11.58 kg / 25.52 lbs 11576.7 g / 113.6 N
3 mm	25%	17.37 kg / 38.28 lbs 17365.0 g / 170.4 N
5 mm	42%	28.94 kg / 63.81 lbs 28941.7 g / 283.9 N
10 mm	83%	57.88 kg / 127.61 lbs 57883.3 g / 567.8 N
11 mm	92%	63.67 kg / 140.37 lbs 63671.7 g / 624.6 N
12 mm	100%	69.46 kg / 153.13 lbs 69460.0 g / 681.4 N

A too thin steel cannot take in the full magnetic flux, which weakens actual performance of the magnet. Should you install a neodymium to a too thin substrate, the field will penetrate right through and the holding will be smaller. To squeeze the maximum of this neodymium's potential, you require a sufficiently solid backing of steel. The material oversaturation means that on delicate walls (e.g., thin profiles), the magnet works worse. We advise picking the steel dimension according to the table below.

Table 5: Thermal resistance (material behavior) - thermal limit
MW 45x30 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	69.46 kg / 153.13 lbs 69460.0 g / 681.4 N	OK
40 °C	-2.2%	67.93 kg / 149.76 lbs 67931.9 g / 666.4 N	OK
60 °C	-4.4%	66.40 kg / 146.40 lbs 66403.8 g / 651.4 N	OK
80 °C	-6.6%	64.88 kg / 143.03 lbs 64875.6 g / 636.4 N
100 °C	-28.8%	49.46 kg / 109.03 lbs 49455.5 g / 485.2 N

Ordinary NdFeB products lose strength after exceeding the maximum temperature. Watch out for overheating – heat can irreversibly destroy this magnet. With increasing heat, the neodymium's power temporarily decreases. Do not use this magnet close to ovens higher than its safe range. Ignoring the limit will result in destruction of magnetic properties.

*Engineering note: Temperature resistance is determined by both grade, but also on the magnet's shape. Thin magnets (pancake types) risk losing magnetic properties sooner compared to rod magnets. Red status in the table points to a risk of irreversible loss for this particular item.

Table 6: Magnet-Magnet interaction (repulsion) - field range
MW 45x30 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Sliding Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	241.01 kg / 531.33 lbs 5 803 Gs	36.15 kg / 79.70 lbs 36151 g / 354.6 N	N/A
1 mm	230.79 kg / 508.80 lbs 9 703 Gs	34.62 kg / 76.32 lbs 34618 g / 339.6 N	207.71 kg / 457.92 lbs ~0 Gs
2 mm	220.52 kg / 486.16 lbs 9 485 Gs	33.08 kg / 72.92 lbs 33078 g / 324.5 N	198.47 kg / 437.54 lbs ~0 Gs
3 mm	210.44 kg / 463.94 lbs 9 265 Gs	31.57 kg / 69.59 lbs 31566 g / 309.7 N	189.39 kg / 417.54 lbs ~0 Gs
5 mm	190.94 kg / 420.95 lbs 8 826 Gs	28.64 kg / 63.14 lbs 28641 g / 281.0 N	171.85 kg / 378.86 lbs ~0 Gs
10 mm	146.87 kg / 323.80 lbs 7 741 Gs	22.03 kg / 48.57 lbs 22031 g / 216.1 N	132.19 kg / 291.42 lbs ~0 Gs
20 mm	81.65 kg / 180.01 lbs 5 771 Gs	12.25 kg / 27.00 lbs 12247 g / 120.1 N	73.48 kg / 162.01 lbs ~0 Gs
50 mm	12.52 kg / 27.60 lbs 2 260 Gs	1.88 kg / 4.14 lbs 1878 g / 18.4 N	11.27 kg / 24.84 lbs ~0 Gs
60 mm	7.01 kg / 15.44 lbs 1 690 Gs	1.05 kg / 2.32 lbs 1051 g / 10.3 N	6.30 kg / 13.90 lbs ~0 Gs
70 mm	4.06 kg / 8.95 lbs 1 287 Gs	0.61 kg / 1.34 lbs 609 g / 6.0 N	3.66 kg / 8.06 lbs ~0 Gs
80 mm	2.44 kg / 5.38 lbs 998 Gs	0.37 kg / 0.81 lbs 366 g / 3.6 N	2.20 kg / 4.84 lbs ~0 Gs
90 mm	1.51 kg / 3.34 lbs 786 Gs	0.23 kg / 0.50 lbs 227 g / 2.2 N	1.36 kg / 3.01 lbs ~0 Gs
100 mm	0.97 kg / 2.14 lbs 629 Gs	0.15 kg / 0.32 lbs 145 g / 1.4 N	0.87 kg / 1.92 lbs ~0 Gs

Two strong neodymiums interact from a much further distance than a magnet and sheet combination. The connection of two magnets produces a massive flux and a wider radius of operation. Planning to create a solid fastener? Use a pair of magnets instead of one magnet and a steel. Remember that when bringing together two magnets, the collision energy is extreme. The repulsion force is a bit weaker than the attraction, but still significant.
*The magnetic induction for N-N configuration drops to ~0 Gs at the geometric center of the gap (caused by magnetic field nullification).
Note: Estimates apply to shear force of dual identical neodymium magnets (friction ~0.15 for Ni-Ni plating).

Table 7: Safety (HSE) (electronics) - precautionary measures
MW 45x30 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	25.5 cm
Hearing aid	10 Gs (1.0 mT)	20.0 cm
Mechanical watch	20 Gs (2.0 mT)	15.5 cm
Mobile device	40 Gs (4.0 mT)	12.0 cm
Car key	50 Gs (5.0 mT)	11.0 cm
Payment card	400 Gs (40.0 mT)	4.5 cm
HDD hard drive	600 Gs (60.0 mT)	4.0 cm

Powerful magnet radiation poses a large risk to electronic devices as well as pacemakers. These neodymiums produce a flux that prevents correct functioning of digital equipment. Remember: the unseen radiation acts through matter and glass. Exceptional care must be exercised by people with cochlear implants and drug dispensers. Influence will be felt by: mechanical watches, remotes, speakers, and displays. Do not place the magnet near cards, hard drives, or precise measuring instruments.

Table 8: Collisions (kinetic energy) - warning
MW 45x30 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	16.76 km/h (4.66 m/s)	3.88 J
30 mm	24.77 km/h (6.88 m/s)	8.47 J
50 mm	31.50 km/h (8.75 m/s)	13.70 J
100 mm	44.44 km/h (12.34 m/s)	27.26 J

Magnetic elements are very brittle – a violent impact against metal can result in shattering. Control the attraction moment – a magnet released freely becomes dangerous. Kinetic force can destroy the magnet or dangerous crushing to fingers. Always hold the magnet during mounting so it doesn't hit with great force against the steel surface. A collision at high speed means shattering of the magnet. Wear eye protection when working with large magnets.

Table 9: Coating parameters (durability)
MW 45x30 / N38

Technical parameter	Value / Description
Coating type	[NiCuNi] Nickel
Layer structure	Nickel - Copper - Nickel
Layer thickness	10-20 µm
Salt spray test (SST) ?	24 h
Recommended environment	Indoors only (dry)

For outdoor applications, an epoxy coating is required; standard nickel is intended for indoor use. Note the thickness of the protective layer.

Table 10: Electrical data (Flux)
MW 45x30 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	79 446 Mx	794.5 µWb
P_c Coefficient	0.71	High (Stable)

Flux value emitted by the pole surface. Key data for generator designers and motors. The P_c coefficient determines the magnet's operating point.

Table 11: Submerged application
MW 45x30 / N38

Environment	Effective steel pull	Effect
Air (land)	69.46 kg	Standard
Water (riverbed)	79.53 kg (+10.07 kg buoyancy gain)	+14.5%

Rust risk: 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. Wall mount (shear)

*Note: On a vertical surface, the magnet retains merely approx. 20-30% of its nominal pull.

2. Efficiency vs thickness

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

3. Thermal stability

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

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 0.71

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

Elemental analysis

iron (Fe)	64% – 68%
neodymium (Nd)	29% – 32%
boron (B)	1.1% – 1.2%
dysprosium (Dy)	0.5% – 2.0%
coating (Ni-Cu-Ni)	< 0.05%

Sustainability

recyclability (EoL)	100%
recycled raw materials	~10% (pre-cons)
carbon footprint	low / zredukowany
waste code (EWC)	16 02 16

Safety card (GPSR)

responsible entity

Dhit sp. z o.o.

ul. Kościuszki 6A, 05-850 Ożarów Mazowiecki

tel: +48 22 499 98 98 | e-mail: bok@dhit.pl

batch number/type

id: 010073-2026

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7.75 ZŁ brutto / pcs

This product is a very strong cylinder magnet, composed of advanced NdFeB material, which, with dimensions of Ø45x30 mm, guarantees maximum efficiency. This specific item boasts high dimensional repeatability and industrial build quality, making it a perfect solution for professional engineers and designers. As a magnetic rod with significant force (approx. 69.46 kg), this product is available off-the-shelf from our European logistics center, ensuring quick order fulfillment. Additionally, its Ni-Cu-Ni coating effectively protects it against corrosion in standard operating conditions, ensuring an aesthetic appearance and durability for years.

This model is perfect for building generators, advanced Hall effect sensors, and efficient magnetic separators, where field concentration on a small surface counts. Thanks to the high power of 681.39 N with a weight of only 357.85 g, this cylindrical magnet is indispensable in miniature devices and wherever every gram matters.

Due to the brittleness of the NdFeB material, you must not use force-fitting (so-called press-fit), as this risks immediate cracking of this professional component. To ensure stability in automation, 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 high resistance to demagnetization. If you need the strongest magnets in the same volume (Ø45x30), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard in continuous sale in our store.

This model is characterized by dimensions Ø45x30 mm, which, at a weight of 357.85 g, makes it an element with impressive magnetic energy density. The value of 681.39 N means that the magnet is capable of holding a weight many times exceeding its own mass of 357.85 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 45 mm. Thanks to this, the magnet can be easily glued into a hole and achieve a strong field on the front surface. On request, we can also produce versions magnetized diametrically if your project requires it.

Strengths and weaknesses of Nd₂Fe₁₄B magnets.

Pros

In addition to their pulling strength, neodymium magnets provide the following advantages:

They have unchanged lifting capacity, and over around 10 years their performance decreases symbolically – ~1% (in testing),
They have excellent resistance to weakening of magnetic properties as a result of external fields,
Thanks to the smooth finish, the coating of nickel, gold-plated, or silver gives an aesthetic appearance,
Neodymium magnets generate maximum magnetic induction on a small surface, which increases force concentration,
Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their form) at temperatures up to 230°C and above...
Due to the possibility of free molding and customization to individualized projects, NdFeB magnets can be created in a broad palette of geometric configurations, which expands the range of possible applications,
Key role in advanced technology sectors – they are used in computer drives, motor assemblies, diagnostic systems, and multitasking production systems.
Thanks to efficiency per cm³, small magnets offer high operating force, in miniature format,

Weaknesses

What to avoid - cons of neodymium magnets and proposals for their use:

To avoid cracks upon strong impacts, we recommend using special steel holders. Such a solution protects the magnet and simultaneously improves its durability.
When exposed to high temperature, neodymium magnets experience a drop in power. Often, when the temperature exceeds 80°C, their strength decreases (depending on the size, as well as 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 start to rust. For applications outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which prevent oxidation as well as corrosion.
Limited ability of creating nuts in the magnet and complicated forms - preferred is casing - mounting mechanism.
Potential hazard related to microscopic parts of magnets are risky, if swallowed, which gains importance in the context of child health protection. Additionally, small elements of these magnets can be problematic in diagnostics medical after entering the body.
Due to expensive raw materials, their price is higher than average,

Lifting parameters

Maximum holding power of the magnet – what it depends on?

Holding force of 69.46 kg is a theoretical maximum value conducted under specific, ideal conditions:

on a plate made of structural steel, effectively closing the magnetic flux
whose transverse dimension is min. 10 mm
with a surface cleaned and smooth
with zero gap (no coatings)
during detachment in a direction vertical to the mounting surface
in temp. approx. 20°C

Determinants of practical lifting force of a magnet

Effective lifting capacity is influenced by working environment parameters, such as (from most important):

Clearance – existence of any layer (paint, dirt, air) acts as an insulator, which reduces capacity rapidly (even by 50% at 0.5 mm).
Pull-off angle – remember that the magnet holds strongest perpendicularly. Under shear forces, the capacity drops significantly, often to levels of 20-30% of the nominal value.
Steel thickness – too thin sheet does not accept the full field, causing part of the power to be lost into the air.
Metal type – different alloys reacts the same. High carbon content weaken the attraction effect.
Plate texture – smooth surfaces ensure maximum contact, which increases force. Rough surfaces weaken the grip.
Temperature – heating the magnet causes a temporary drop of induction. Check the thermal limit for a given model.

Holding force was tested on a smooth steel plate of 20 mm thickness, when the force acted perpendicularly, whereas under attempts to slide the magnet the holding force is lower. Additionally, even a slight gap between the magnet’s surface and the plate reduces the load capacity.

Safety rules for work with NdFeB magnets

Magnetic interference

An intense magnetic field interferes with the operation of compasses in phones and GPS navigation. Do not bring magnets close to a smartphone to prevent damaging the sensors.

Electronic hazard

Data protection: Neodymium magnets can damage data carriers and sensitive devices (pacemakers, hearing aids, mechanical watches).

Machining danger

Mechanical processing of neodymium magnets carries a risk of fire risk. Neodymium dust reacts violently with oxygen and is difficult to extinguish.

Metal Allergy

Studies show that the nickel plating (standard magnet coating) is a strong allergen. If your skin reacts to metals, prevent direct skin contact or choose encased magnets.

Pinching danger

Watch your fingers. Two large magnets will join immediately with a force of several hundred kilograms, crushing everything in their path. Be careful!

Health Danger

Individuals with a ICD should keep an large gap from magnets. The magnetism can disrupt the operation of the life-saving device.

Magnets are brittle

Neodymium magnets are sintered ceramics, which means they are prone to chipping. Impact of two magnets leads to them cracking into shards.

Swallowing risk

Neodymium magnets are not suitable for play. Swallowing a few magnets may result in them connecting inside the digestive tract, which constitutes a critical condition and necessitates immediate surgery.

Handling guide

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

Power loss in heat

Control the heat. Heating the magnet above 80 degrees Celsius will permanently weaken its magnetic structure and strength.

Caution! Want to know more? Check our post: Are neodymium magnets dangerous?

MW 45x30 / N38 - cylindrical magnet

Physical properties - MW 45x30 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Engineering modeling of the assembly - data

Table 1: Static force (pull vs gap) - characteristics MW 45x30 / N38

Table 2: Shear load (vertical surface) MW 45x30 / N38

Table 3: Wall mounting (sliding) - vertical pull MW 45x30 / N38

Table 4: Material efficiency (substrate influence) - sheet metal selection MW 45x30 / N38

Table 5: Thermal resistance (material behavior) - thermal limit MW 45x30 / N38

Table 6: Magnet-Magnet interaction (repulsion) - field range MW 45x30 / N38

Table 7: Safety (HSE) (electronics) - precautionary measures MW 45x30 / N38

Table 8: Collisions (kinetic energy) - warning MW 45x30 / N38

Table 9: Coating parameters (durability) MW 45x30 / N38

Table 10: Electrical data (Flux) MW 45x30 / N38

Table 11: Submerged application MW 45x30 / N38

1. Wall mount (shear)

2. Efficiency vs thickness

3. Thermal stability

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

Elemental analysis

Sustainability

Pulling force

Magnetic Induction

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MP 20x8/4x5 / N38 - ring magnet

Strengths and weaknesses of Nd2Fe14B magnets.

Pros

Weaknesses

Lifting parameters

Maximum holding power of the magnet – what it depends on?

Determinants of practical lifting force of a magnet

Safety rules for work with NdFeB magnets

Magnetic interference

Electronic hazard

Machining danger

Metal Allergy

Pinching danger

Health Danger

Magnets are brittle

Swallowing risk

Handling guide

Power loss in heat

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (pull vs gap) - characteristics
MW 45x30 / N38

Table 2: Shear load (vertical surface)
MW 45x30 / N38

Table 3: Wall mounting (sliding) - vertical pull
MW 45x30 / N38

Table 4: Material efficiency (substrate influence) - sheet metal selection
MW 45x30 / N38

Table 5: Thermal resistance (material behavior) - thermal limit
MW 45x30 / N38

Table 6: Magnet-Magnet interaction (repulsion) - field range
MW 45x30 / N38

Table 7: Safety (HSE) (electronics) - precautionary measures
MW 45x30 / N38

Table 8: Collisions (kinetic energy) - warning
MW 45x30 / N38

Table 9: Coating parameters (durability)
MW 45x30 / N38

Table 10: Electrical data (Flux)
MW 45x30 / N38

Table 11: Submerged application
MW 45x30 / N38

Strengths and weaknesses of Nd₂Fe₁₄B magnets.