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MW 100x30 / 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 010002

GTIN/EAN: 5906301810025

5.00

Diameter Ø

100 mm [±0,1 mm]

Height

30 mm [±0,1 mm]

Weight

1767.15 g

Magnetization Direction

↑ axial

Load capacity

215.17 kg / 2110.78 N

Magnetic Induction

318.96 mT / 3190 Gs

Coating

[NiCuNi] Nickel

check technical specifications »

650.01 ZŁ with VAT / pcs + price for transport

528.46 ZŁ net + 23% VAT / pcs

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Technical specification of the product - MW 100x30 / N38 - cylindrical magnet

Specification / characteristics - MW 100x30 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010002
GTIN/EAN	5906301810025
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	100 mm [±0,1 mm]
Height	30 mm [±0,1 mm]
Weight	1767.15 g
Magnetization Direction	↑ axial
Load capacity ~ ?	215.17 kg / 2110.78 N
Magnetic Induction ~ ?	318.96 mT / 3190 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 100x30 / 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 simulation of the assembly - technical parameters

Presented information are the result of a engineering analysis. Values are based on algorithms for the material Nd₂Fe₁₄B. Real-world conditions may differ from theoretical values. Use these calculations as a supplementary guide for designers.

Table 1: Static pull force (pull vs distance) - characteristics
MW 100x30 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	3189 Gs 318.9 mT	215.17 kg / 474.37 pounds 215170.0 g / 2110.8 N	crushing
1 mm	3143 Gs 314.3 mT	208.96 kg / 460.68 pounds 208959.6 g / 2049.9 N	crushing
2 mm	3094 Gs 309.4 mT	202.53 kg / 446.51 pounds 202531.7 g / 1986.8 N	crushing
3 mm	3044 Gs 304.4 mT	195.98 kg / 432.07 pounds 195982.5 g / 1922.6 N	crushing
5 mm	2939 Gs 293.9 mT	182.65 kg / 402.68 pounds 182651.7 g / 1791.8 N	crushing
10 mm	2657 Gs 265.7 mT	149.35 kg / 329.26 pounds 149349.8 g / 1465.1 N	crushing
15 mm	2366 Gs 236.6 mT	118.41 kg / 261.05 pounds 118412.6 g / 1161.6 N	crushing
20 mm	2081 Gs 208.1 mT	91.64 kg / 202.03 pounds 91640.5 g / 899.0 N	crushing
30 mm	1573 Gs 157.3 mT	52.34 kg / 115.40 pounds 52344.5 g / 513.5 N	crushing
50 mm	874 Gs 87.4 mT	16.14 kg / 35.58 pounds 16140.3 g / 158.3 N	crushing

Grip strength decreases drastically with every subsequent millimeter of spacing. Remember that even a microscopic distance (e.g., contamination, varnish, rust) significantly diminishes the holding power. Magnets hold strongest at the point of direct contact; distance kills the force. Analyze how flashily the load capacity fall, when the magnet does not touch tightly to the steel surface. When designing the arrangement, discard redundant distances.

Table 2: Shear capacity (vertical surface)
MW 100x30 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	43.03 kg / 94.87 pounds 43034.0 g / 422.2 N
1 mm	Stal (~0.2)	41.79 kg / 92.14 pounds 41792.0 g / 410.0 N
2 mm	Stal (~0.2)	40.51 kg / 89.30 pounds 40506.0 g / 397.4 N
3 mm	Stal (~0.2)	39.20 kg / 86.41 pounds 39196.0 g / 384.5 N
5 mm	Stal (~0.2)	36.53 kg / 80.53 pounds 36530.0 g / 358.4 N
10 mm	Stal (~0.2)	29.87 kg / 65.85 pounds 29870.0 g / 293.0 N
15 mm	Stal (~0.2)	23.68 kg / 52.21 pounds 23682.0 g / 232.3 N
20 mm	Stal (~0.2)	18.33 kg / 40.41 pounds 18328.0 g / 179.8 N
30 mm	Stal (~0.2)	10.47 kg / 23.08 pounds 10468.0 g / 102.7 N
50 mm	Stal (~0.2)	3.23 kg / 7.12 pounds 3228.0 g / 31.7 N

The following data indicates the theoretical holding capacity required to cause the downward movement of the magnet down on a vertical metal surface (assuming typical friction coefficient). This parameter is a function of the distance between the magnet and the metal.

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces
MW 100x30 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	64.55 kg / 142.31 pounds 64551.0 g / 633.2 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	43.03 kg / 94.87 pounds 43034.0 g / 422.2 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	21.52 kg / 47.44 pounds 21517.0 g / 211.1 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	107.59 kg / 237.18 pounds 107585.0 g / 1055.4 N

When placing a element on a vertical plane (e.g., a car body), it will only hold just about 20%-30% of its maximum pull force. Gravitational force and a low friction coefficient influence the fact that holders slide down faster than they detach. Planning a vertical fastening? Consider that the shear force is significantly lower than the maximum static pull force. On a smooth steel, the holder will slip down under a significantly smaller cargo. Utilizing a rubberized layer can drastically improve the result.

Table 4: Material efficiency (substrate influence) - sheet metal selection
MW 100x30 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	3%	7.17 kg / 15.81 pounds 7172.3 g / 70.4 N
1 mm	8%	17.93 kg / 39.53 pounds 17930.8 g / 175.9 N
2 mm	17%	35.86 kg / 79.06 pounds 35861.7 g / 351.8 N
3 mm	25%	53.79 kg / 118.59 pounds 53792.5 g / 527.7 N
5 mm	42%	89.65 kg / 197.65 pounds 89654.2 g / 879.5 N
10 mm	83%	179.31 kg / 395.31 pounds 179308.3 g / 1759.0 N
11 mm	92%	197.24 kg / 434.84 pounds 197239.2 g / 1934.9 N
12 mm	100%	215.17 kg / 474.37 pounds 215170.0 g / 2110.8 N

A thin sheet cannot focus the entire magnetic field, which wastes potential of the holder. If you attach a powerful product to a thin surface, the magnetism will pass right through and the holding will be smaller. To achieve the maximum of this neodymium's power, you need a suitably thick element of metal. The material oversaturation means that on delicate walls (e.g., car bodies), the magnet holds weaker. We recommend selecting the steel cross-section from these parameters.

Table 5: Thermal stability (material behavior) - thermal limit
MW 100x30 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	215.17 kg / 474.37 pounds 215170.0 g / 2110.8 N	OK
40 °C	-2.2%	210.44 kg / 463.93 pounds 210436.3 g / 2064.4 N	OK
60 °C	-4.4%	205.70 kg / 453.50 pounds 205702.5 g / 2017.9 N
80 °C	-6.6%	200.97 kg / 443.06 pounds 200968.8 g / 1971.5 N
100 °C	-28.8%	153.20 kg / 337.75 pounds 153201.0 g / 1502.9 N

Ordinary NdFeB products change their properties parameters above the temperature limit. Protect against heat – excessive heat can permanently damage this product. As the temperature rises, the magnet's capacity briefly drops. Avoid using this magnet in hot environments higher than its working range. Exceeding the critical threshold will result in permanent loss of magnetism.

*Technical advisory: Thermal stability is determined by both grade, and the Permeance Coefficient Pc. Low-profile magnets (pancake types) may lose charge permanently sooner compared to rod magnets. The danger warning in the table points to permanent field degradation for this particular item.

Table 6: Two magnets (attraction) - forces in the system
MW 100x30 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Sliding Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	492.55 kg / 1085.88 pounds 4 762 Gs	73.88 kg / 162.88 pounds 73882 g / 724.8 N	N/A
1 mm	485.56 kg / 1070.47 pounds 6 333 Gs	72.83 kg / 160.57 pounds 72834 g / 714.5 N	437.00 kg / 963.42 pounds ~0 Gs
2 mm	478.33 kg / 1054.54 pounds 6 286 Gs	71.75 kg / 158.18 pounds 71749 g / 703.9 N	430.50 kg / 949.08 pounds ~0 Gs
3 mm	471.01 kg / 1038.40 pounds 6 238 Gs	70.65 kg / 155.76 pounds 70652 g / 693.1 N	423.91 kg / 934.56 pounds ~0 Gs
5 mm	456.15 kg / 1005.64 pounds 6 139 Gs	68.42 kg / 150.85 pounds 68422 g / 671.2 N	410.53 kg / 905.07 pounds ~0 Gs
10 mm	418.11 kg / 921.77 pounds 5 877 Gs	62.72 kg / 138.27 pounds 62716 g / 615.2 N	376.30 kg / 829.59 pounds ~0 Gs
20 mm	341.88 kg / 753.71 pounds 5 314 Gs	51.28 kg / 113.06 pounds 51282 g / 503.1 N	307.69 kg / 678.34 pounds ~0 Gs
50 mm	159.49 kg / 351.61 pounds 3 630 Gs	23.92 kg / 52.74 pounds 23923 g / 234.7 N	143.54 kg / 316.45 pounds ~0 Gs
60 mm	119.82 kg / 264.16 pounds 3 146 Gs	17.97 kg / 39.62 pounds 17973 g / 176.3 N	107.84 kg / 237.75 pounds ~0 Gs
70 mm	89.40 kg / 197.09 pounds 2 718 Gs	13.41 kg / 29.56 pounds 13410 g / 131.6 N	80.46 kg / 177.38 pounds ~0 Gs
80 mm	66.51 kg / 146.64 pounds 2 344 Gs	9.98 kg / 22.00 pounds 9977 g / 97.9 N	59.86 kg / 131.97 pounds ~0 Gs
90 mm	49.50 kg / 109.14 pounds 2 022 Gs	7.43 kg / 16.37 pounds 7426 g / 72.8 N	44.55 kg / 98.22 pounds ~0 Gs
100 mm	36.95 kg / 81.45 pounds 1 747 Gs	5.54 kg / 12.22 pounds 5542 g / 54.4 N	33.25 kg / 73.31 pounds ~0 Gs

Two magnets interact from a wider radius than a magnet and sheet combination. The connection of magnet-to-magnet generates a stronger field and a larger range of action. Designing a solid fastener? Utilize two neodymiums instead of a neodymium and a steel. Be careful that when bringing together two magnets, the collision energy is extreme. The levitation is slightly lower than the attraction, but still large.
*Field value between like poles is approximately ~0 Gs at the geometric center of the gap (due to field cancellation).
Note: Results refer to sliding force of two identical magnets (friction ~0.15 for Ni-Ni coating).

Table 7: Protective zones (electronics) - precautionary measures
MW 100x30 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	44.0 cm
Hearing aid	10 Gs (1.0 mT)	34.5 cm
Mechanical watch	20 Gs (2.0 mT)	27.0 cm
Phone / Smartphone	40 Gs (4.0 mT)	21.0 cm
Remote	50 Gs (5.0 mT)	19.0 cm
Payment card	400 Gs (40.0 mT)	8.0 cm
HDD hard drive	600 Gs (60.0 mT)	6.5 cm

A strong magnetic field is a real danger to electronics and medical implants. These neodymiums produce a field that disrupts operation of sensitive medical devices. Notice: the invisible magnetic field acts through matter and housings. Increased vigilance must be exercised by people with cochlear implants and insulin pumps. The risk also applies to: automatic timepieces, car keys, membranes, and screens. Do not place the magnet near cards, HDD media, or sensitive navigation tools.

Table 8: Collisions (cracking risk) - collision effects
MW 100x30 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	15.21 km/h (4.22 m/s)	15.77 J
30 mm	22.01 km/h (6.11 m/s)	33.03 J
50 mm	26.02 km/h (7.23 m/s)	46.17 J
100 mm	35.32 km/h (9.81 m/s)	85.04 J

Magnetic elements are very brittle – a collision with steel can result in shattering. Pay attention to connection velocity – a magnet released freely turns into a projectile. Striking energy can destroy the magnet or painful pinches to fingers. Be sure to control the product during bringing near metal so it doesn't hit with great force against the metal. A contact at a velocity of dozens of km/h means shattering of the magnet. Use safety goggles when handling with powerful specimens.

Table 9: Coating parameters (durability)
MW 100x30 / 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. Note the thickness of the protective layer.

Table 10: Electrical data (Flux)
MW 100x30 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	269 425 Mx	2694.3 µWb
P_c Coefficient	0.40	Low (Flat)

Total magnetic flux emitted by the pole surface. Key data for generator designers and motors. P_c value defines the magnet's operating point.

Table 11: Underwater work (magnet fishing)
MW 100x30 / N38

Environment	Effective steel pull	Effect
Air (land)	215.17 kg	Standard
Water (riverbed)	246.37 kg (+31.20 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.

Contrary to myths, water does not block the magnetic field. Buoyancy helps in lifting finds.

1. Vertical hold

*Caution: On a vertical surface, the magnet holds merely ~20% of its nominal pull.

2. Efficiency vs thickness

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

3. Power loss vs temp

*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) = 0.40

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 and environmental data

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: 010002-2026

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UMP 75x25 [M10x3] GW F200 GOLD DUAL / N42 - search holder

245.00 ZŁ brutto / pcs

Product available Ships today (order by 14:00)

MW 8x20 / N38 - cylindrical magnet

4.60 ZŁ brutto / pcs

Product available Ships today (order by 14:00)

UI 33x13x4 [C311] / N38 - badge holder

2.40 ZŁ brutto / pcs

Product available Ships today (order by 14:00)

MW 6x3 / N38 - cylindrical magnet

0.381 ZŁ brutto / pcs

This product is an extremely powerful cylindrical magnet, made from advanced NdFeB material, which, with dimensions of Ø100x30 mm, guarantees optimal power. This specific item boasts a tolerance of ±0.1mm and industrial build quality, making it a perfect solution for professional engineers and designers. As a magnetic rod with impressive force (approx. 215.17 kg), this product is in stock from our warehouse in Poland, ensuring rapid order fulfillment. Moreover, 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 fastening or actuating element. Thanks to the high power of 2110.78 N with a weight of only 1767.15 g, this cylindrical magnet is indispensable in electronics and wherever every gram matters.

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., 100.1 mm) using epoxy glues. To ensure long-term durability in automation, specialized industrial adhesives are used, which are safe for nickel and fill the gap, guaranteeing durability 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 (Ø100x30), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard in continuous sale in our warehouse.

The presented product is a neodymium magnet with precisely defined parameters: diameter 100 mm and height 30 mm. The key parameter here is the lifting capacity amounting to approximately 215.17 kg (force ~2110.78 N), which, with such compact dimensions, proves the high power of the NdFeB material. 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 100 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.

Advantages

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

They have constant strength, and over nearly ten years their attraction force decreases symbolically – ~1% (in testing),
Magnets very well resist against loss of magnetization caused by foreign field sources,
Thanks to the elegant finish, the plating of Ni-Cu-Ni, gold-plated, or silver-plated gives an elegant appearance,
Magnetic induction on the working part of the magnet remains impressive,
Due to their durability and thermal resistance, neodymium magnets are capable of operate (depending on the shape) even at high temperatures reaching 230°C or more...
Considering the possibility of flexible shaping and adaptation to unique requirements, NdFeB magnets can be manufactured in a wide range of geometric configurations, which amplifies use scope,
Significant place in future technologies – they are commonly used in mass storage devices, motor assemblies, diagnostic systems, also multitasking production systems.
Compactness – despite small sizes they generate large force, making them ideal for precision applications

Limitations

Cons of neodymium magnets: application proposals

To avoid cracks upon strong impacts, we recommend using special steel holders. Such a solution protects the magnet and simultaneously improves its durability.
Neodymium magnets decrease their force 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
Magnets exposed to a humid environment can rust. Therefore while using outdoors, we advise using water-impermeable magnets made of rubber, plastic or other material protecting against moisture
Due to limitations in realizing nuts and complicated forms in magnets, we recommend using a housing - magnetic holder.
Health risk to health – tiny shards of magnets are risky, if swallowed, which becomes key in the context of child health protection. It is also worth noting that small components of these devices are able to disrupt the diagnostic process medical when they are in the body.
With budget limitations the cost of neodymium magnets is economically unviable,

Pull force analysis

Magnetic strength at its maximum – what affects it?

The load parameter shown refers to the maximum value, obtained under optimal environment, namely:

using a sheet made of high-permeability steel, acting as a magnetic yoke
whose thickness equals approx. 10 mm
characterized by even structure
without the slightest clearance between the magnet and steel
during pulling in a direction perpendicular to the plane
at temperature approx. 20 degrees Celsius

Impact of factors on magnetic holding capacity in practice

In practice, the real power depends on several key aspects, ranked from crucial:

Air gap (between the magnet and the metal), because even a very small distance (e.g. 0.5 mm) leads to a drastic drop in force by up to 50% (this also applies to paint, rust or dirt).
Loading method – catalog parameter refers to detachment vertically. When attempting to slide, the magnet exhibits significantly lower power (typically approx. 20-30% of maximum force).
Element thickness – for full efficiency, the steel must be sufficiently thick. Thin sheet restricts the lifting capacity (the magnet "punches through" it).
Chemical composition of the base – low-carbon steel attracts best. Higher carbon content decrease magnetic properties and lifting capacity.
Plate texture – smooth surfaces ensure maximum contact, which increases field saturation. Uneven metal weaken the grip.
Operating temperature – NdFeB sinters have a negative temperature coefficient. At higher temperatures they lose power, and in frost they can be stronger (up to a certain limit).

Lifting capacity testing was conducted on a smooth plate of suitable thickness, under perpendicular forces, however under attempts to slide the magnet the holding force is lower. Additionally, even a small distance between the magnet’s surface and the plate reduces the lifting capacity.

H&S for magnets

Operating temperature

Keep cool. Neodymium magnets are sensitive to heat. If you need operation above 80°C, inquire about HT versions (H, SH, UH).

Nickel coating and allergies

Some people experience a sensitization to Ni, which is the common plating for neodymium magnets. Prolonged contact may cause a rash. We recommend use safety gloves.

Conscious usage

Before use, read the rules. Sudden snapping can break the magnet or injure your hand. Think ahead.

GPS and phone interference

Remember: rare earth magnets generate a field that confuses sensitive sensors. Keep a separation from your mobile, tablet, and GPS.

Danger to pacemakers

For implant holders: Powerful magnets disrupt medical devices. Keep minimum 30 cm distance or ask another person to handle the magnets.

Swallowing risk

Only for adults. Tiny parts pose a choking risk, leading to serious injuries. Keep away from children and animals.

Risk of cracking

Neodymium magnets are sintered ceramics, meaning they are prone to chipping. Collision of two magnets will cause them cracking into small pieces.

Bodily injuries

Danger of trauma: The pulling power is so great that it can cause blood blisters, crushing, and broken bones. Use thick gloves.

Safe distance

Equipment safety: Neodymium magnets can ruin data carriers and delicate electronics (heart implants, medical aids, mechanical watches).

Fire risk

Dust generated during grinding of magnets is combustible. Do not drill into magnets unless you are an expert.

Safety First! Need more info? Check our post: Are neodymium magnets dangerous?

MW 100x30 / N38 - cylindrical magnet

Technical specification of the product - MW 100x30 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical simulation of the assembly - technical parameters

Table 1: Static pull force (pull vs distance) - characteristics MW 100x30 / N38

Table 2: Shear capacity (vertical surface) MW 100x30 / N38

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces MW 100x30 / N38

Table 4: Material efficiency (substrate influence) - sheet metal selection MW 100x30 / N38

Table 5: Thermal stability (material behavior) - thermal limit MW 100x30 / N38

Table 6: Two magnets (attraction) - forces in the system MW 100x30 / N38

Table 7: Protective zones (electronics) - precautionary measures MW 100x30 / N38

Table 8: Collisions (cracking risk) - collision effects MW 100x30 / N38

Table 9: Coating parameters (durability) MW 100x30 / N38

Table 10: Electrical data (Flux) MW 100x30 / N38

Table 11: Underwater work (magnet fishing) MW 100x30 / N38

1. Vertical hold

2. Efficiency vs thickness

3. Power loss vs temp

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

Elemental analysis

Sustainability

Magnet pull force

Field Strength

See also proposals

UMP 75x25 [M10x3] GW F200 GOLD DUAL / N42 - search holder

MW 8x20 / N38 - cylindrical magnet

UI 33x13x4 [C311] / N38 - badge holder

MW 6x3 / N38 - cylindrical magnet

Strengths and weaknesses of Nd2Fe14B magnets.

Advantages

Limitations

Pull force analysis

Magnetic strength at its maximum – what affects it?

Impact of factors on magnetic holding capacity in practice

H&S for magnets

Operating temperature

Nickel coating and allergies

Conscious usage

GPS and phone interference

Danger to pacemakers

Swallowing risk

Risk of cracking

Bodily injuries

Safe distance

Fire risk

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (pull vs distance) - characteristics
MW 100x30 / N38

Table 2: Shear capacity (vertical surface)
MW 100x30 / N38

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces
MW 100x30 / N38

Table 4: Material efficiency (substrate influence) - sheet metal selection
MW 100x30 / N38

Table 5: Thermal stability (material behavior) - thermal limit
MW 100x30 / N38

Table 6: Two magnets (attraction) - forces in the system
MW 100x30 / N38

Table 7: Protective zones (electronics) - precautionary measures
MW 100x30 / N38

Table 8: Collisions (cracking risk) - collision effects
MW 100x30 / N38

Table 9: Coating parameters (durability)
MW 100x30 / N38

Table 10: Electrical data (Flux)
MW 100x30 / N38

Table 11: Underwater work (magnet fishing)
MW 100x30 / N38

Strengths and weaknesses of Nd₂Fe₁₄B magnets.