Product available Ships tomorrow

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

see technical data »

650.01 ZŁ with VAT / pcs + price for transport

528.46 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?

price from 1 pcs

528.46 ZŁ

650.01 ZŁ

price from 2 pcs

465.04 ZŁ

572.01 ZŁ

price from 3 pcs

449.19 ZŁ

552.50 ZŁ

Carbon Footprint – environmental impact GPSR Regulation – product safety

Hunting for a discount?

Contact us by phone +48 22 499 98 98 if you prefer let us know through contact form through our site.
Weight and appearance of neodymium magnets can be tested using our power calculator.

Order by 14:00 and we’ll ship today!

Technical - 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

Engineering simulation of the magnet - technical parameters

The following values are the result of a mathematical analysis. Results are based on algorithms for the material Nd₂Fe₁₄B. Real-world performance might slightly differ from theoretical values. Treat these data as a preliminary roadmap during assembly planning.

Table 1: Static pull force (pull vs gap) - 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 lbs 215170.0 g / 2110.8 N	dangerous!
1 mm	3143 Gs 314.3 mT	208.96 kg / 460.68 lbs 208959.6 g / 2049.9 N	dangerous!
2 mm	3094 Gs 309.4 mT	202.53 kg / 446.51 lbs 202531.7 g / 1986.8 N	dangerous!
3 mm	3044 Gs 304.4 mT	195.98 kg / 432.07 lbs 195982.5 g / 1922.6 N	dangerous!
5 mm	2939 Gs 293.9 mT	182.65 kg / 402.68 lbs 182651.7 g / 1791.8 N	dangerous!
10 mm	2657 Gs 265.7 mT	149.35 kg / 329.26 lbs 149349.8 g / 1465.1 N	dangerous!
15 mm	2366 Gs 236.6 mT	118.41 kg / 261.05 lbs 118412.6 g / 1161.6 N	dangerous!
20 mm	2081 Gs 208.1 mT	91.64 kg / 202.03 lbs 91640.5 g / 899.0 N	dangerous!
30 mm	1573 Gs 157.3 mT	52.34 kg / 115.40 lbs 52344.5 g / 513.5 N	dangerous!
50 mm	874 Gs 87.4 mT	16.14 kg / 35.58 lbs 16140.3 g / 158.3 N	dangerous!

Magnetic force weakens sharply per each millimeter of gap. Remember that even a very thin break (e.g., contamination, paint, dust) significantly diminishes the holding power. Magnetic products operate optimally in perfect adhesion; distance weakens the power. See how rapidly the pull force drop, when the product does not adhere directly to the steel surface. When designing the assembly, avoid unnecessary gaps.

Table 2: Shear load (wall)
MW 100x30 / N38

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

This section indicates the theoretical weight limit needed to start the slippage of the magnet downwards on a vertical steel plate (assuming standard friction coefficient). The holding force is relative to the distance between the magnet and the metal.

Table 3: Vertical assembly (shearing) - vertical pull
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 lbs 64551.0 g / 633.2 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	43.03 kg / 94.87 lbs 43034.0 g / 422.2 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	21.52 kg / 47.44 lbs 21517.0 g / 211.1 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	107.59 kg / 237.18 lbs 107585.0 g / 1055.4 N

When placing a element on a upright plane (e.g., a board), it you can count on barely approx. 1/5 of nominal attraction strength. Gravitational force and a weak degree of grip cause that products slip easier than they detach. Planning a hanger? Note that the shear force is noticeably lower than the perpendicular breakaway force. On a slippery surface, the magnet will slide down under a significantly smaller weight. Using a rubber coating 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 lbs 7172.3 g / 70.4 N
1 mm	8%	17.93 kg / 39.53 lbs 17930.8 g / 175.9 N
2 mm	17%	35.86 kg / 79.06 lbs 35861.7 g / 351.8 N
3 mm	25%	53.79 kg / 118.59 lbs 53792.5 g / 527.7 N
5 mm	42%	89.65 kg / 197.65 lbs 89654.2 g / 879.5 N
10 mm	83%	179.31 kg / 395.31 lbs 179308.3 g / 1759.0 N
11 mm	92%	197.24 kg / 434.84 lbs 197239.2 g / 1934.9 N
12 mm	100%	215.17 kg / 474.37 lbs 215170.0 g / 2110.8 N

A too thin steel is unable to absorb the entire magnetic field, which wastes potential of the magnet. If you install a neodymium to a weak sheet, the magnetism will penetrate right through and the pull force will drop sharply. To achieve the maximum of this neodymium's power, you need a suitably thick element of metal. The saturation effect means that on thin elements (e.g., thin profiles), the product works worse. We suggest choosing the steel cross-section from these parameters.

Table 5: Thermal resistance (stability) - 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 lbs 215170.0 g / 2110.8 N	OK
40 °C	-2.2%	210.44 kg / 463.93 lbs 210436.3 g / 2064.4 N	OK
60 °C	-4.4%	205.70 kg / 453.50 lbs 205702.5 g / 2017.9 N
80 °C	-6.6%	200.97 kg / 443.06 lbs 200968.8 g / 1971.5 N
100 °C	-28.8%	153.20 kg / 337.75 lbs 153201.0 g / 1502.9 N

Standard neodymium magnets change their properties power past the thermal threshold. Protect against heat – excessive heat can permanently damage this product. As the temperature rises, the neodymium's capacity briefly lowers. Avoid using this magnet close to heaters exceeding its operating temperature limit. Ignoring the limit will result in destruction of magnetic properties.

*Important note: Thermal stability is determined by both grade, as well as the dimension ratios. Low-profile magnets (pancake types) risk losing magnetic properties at lower temperatures compared to rod magnets. Red status in the table signals a risk of irreversible loss for this specific geometry.

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

Two strong neodymiums interact from a much further distance than a neodymium and metal combination. The connection of magnet-to-magnet generates a stronger field and a further horizon of operation. Designing a solid fastener? Use a pair of magnets instead of one magnet and a steel. Be careful that when bringing together two magnets, the impact force is extreme. The repulsion force is marginally weaker than the connection force, but still significant.
*The magnetic induction for N-N configuration reaches ~0 Gs at the midpoint between the magnets (resulting from vector opposition).
Important: Results refer to shear force of two same neodymium magnets (friction ~0.15 for Ni-Ni layer).

Table 7: Protective zones (implants) - 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
Car key	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

Powerful magnet radiation poses a serious hazard to IT equipment as well as pacemakers. These NdFeB products generate a flux that disrupts operation of digital equipment. Notice: the invisible magnetic field acts through matter and housings. Exceptional care must be taken by people with hearing aids and insulin pumps. Influence will be felt by: mechanical watches, remotes, speakers, and displays. Avoid contact with magnetic cards, HDD media, or sensitive navigation tools.

Table 8: Dynamics (kinetic energy) - warning
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

NdFeB products are prone to chipping – a violent impact against metal can result in shattering. Watch the impact speed – a magnet released freely becomes dangerous. Impact energy can destroy the magnet or painful pinches to skin. Be sure to control the product during mounting so it doesn't hit violently against the metal. A contact at a velocity of dozens of km/h ends with a crack of the magnet. Wear safety glasses when playing with large magnets.

Table 9: Corrosion resistance
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)

For outdoor applications, an epoxy coating is required; standard nickel is intended for indoor use. Improper coating selection is the most common cause of magnet failure over time.

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

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

Flux value passing through the pole surface. Key data in coil applications as well as sensors. The P_c coefficient defines the magnet's operating point.

Table 11: Submerged application
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: This magnet has a standard nickel coating. After use in water, it must be dried and maintained immediately, otherwise it will rust!

Water displaces steel, making heavy objects slightly lighter. Note: for permanent underwater work, we recommend magnets with an anti-corrosive (epoxy) coating.

1. Sliding resistance

*Warning: On a vertical wall, the magnet holds just ~20% of its max power.

2. Efficiency vs thickness

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

3. Temperature resistance

*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

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

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%

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: 010002-2026

Magnet Unit Converter

Force (pull)

Newtons (N)

Pounds (lbs)

Field Strength

Input your value in just one slot to generate results in the other units at once.

Other offers

Product available Ships tomorrow

MT 50x1.5x30000 - magnetic tape

258.30 ZŁ brutto / pcs

Product available Ships tomorrow

UMC 60x9/5x15 / N38 - cylindrical magnetic holder

64.94 ZŁ brutto / pcs

Product available Ships tomorrow

MP 24x16x2 / N38 - ring magnet

3.69 ZŁ brutto / pcs

Product available Ships tomorrow

XT-6 magnetyzery do silników - BENZYNA i LPG + olej - XT-6 magnetizer

98.99 ZŁ brutto / pcs

The presented product is an incredibly powerful cylinder magnet, made from advanced NdFeB material, which, with dimensions of Ø100x30 mm, guarantees the highest energy density. This specific item boasts high dimensional repeatability and professional build quality, making it an excellent solution for professional engineers and designers. As a magnetic rod with significant force (approx. 215.17 kg), this product is in stock from our European logistics center, ensuring quick order fulfillment. Moreover, its triple-layer Ni-Cu-Ni coating secures it against corrosion in typical operating conditions, ensuring an aesthetic appearance and durability for years.

It finds application in DIY projects, advanced robotics, and broadly understood industry, serving as a positioning 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 best method is to glue them into holes with a slightly larger diameter (e.g., 100.1 mm) using two-component epoxy glues. To ensure stability in industry, specialized industrial adhesives are used, which do not react with the nickel coating and fill the gap, guaranteeing high repeatability of the connection.

Magnets N38 are suitable for the majority of applications in modeling and machine building, where excessive miniaturization with maximum force is not required. If you need even stronger magnets in the same volume (Ø100x30), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard available off-the-shelf in our warehouse.

The presented product is a neodymium magnet with precisely defined parameters: diameter 100 mm and height 30 mm. The value of 2110.78 N means that the magnet is capable of holding a weight many times exceeding its own mass of 1767.15 g. The product has a [NiCuNi] coating, which secures it against oxidation, giving it an aesthetic, silvery shine.

This cylinder is magnetized axially (along the height of 30 mm), which means that the N and S poles are located on the flat, circular surfaces. Such an arrangement is most desirable 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 as well as weaknesses of neodymium magnets.

Benefits

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

They do not lose strength, even after around 10 years – the reduction in lifting capacity is only ~1% (theoretically),
They feature excellent resistance to magnetic field loss as a result of external magnetic sources,
A magnet with a smooth silver surface looks better,
The surface of neodymium magnets generates a concentrated magnetic field – this is a distinguishing feature,
Neodymium magnets are characterized by very high magnetic induction on the magnet surface and can function (depending on the shape) even at a temperature of 230°C or more...
Due to the potential of free molding and adaptation to custom projects, NdFeB magnets can be produced in a variety of geometric configurations, which expands the range of possible applications,
Fundamental importance in innovative solutions – they are used in computer drives, motor assemblies, diagnostic systems, as well as modern systems.
Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in tiny dimensions, which enables their usage in small systems

Weaknesses

Disadvantages of neodymium magnets:

Susceptibility to cracking is one of their disadvantages. Upon intense impact they can break. We advise keeping them in a strong case, which not only secures them against impacts but also increases their durability
When exposed to high temperature, neodymium magnets suffer 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
Due to the susceptibility of magnets to corrosion in a humid environment, we recommend using waterproof magnets made of rubber, plastic or other material stable to moisture, in case of application outdoors
Due to limitations in producing threads and complex forms in magnets, we propose using a housing - magnetic holder.
Health risk to health – tiny shards of magnets can be dangerous, if swallowed, which gains importance in the context of child safety. Additionally, small elements of these products are able to be problematic in diagnostics medical in case of swallowing.
High unit price – neodymium magnets cost more than other types of magnets (e.g. ferrite), which can limit application in large quantities

Holding force characteristics

Maximum magnetic pulling force – what affects it?

The force parameter is a measurement result conducted under the following configuration:

using a sheet made of mild steel, serving as a magnetic yoke
whose thickness is min. 10 mm
characterized by lack of roughness
without any air gap between the magnet and steel
under vertical application of breakaway force (90-degree angle)
at temperature approx. 20 degrees Celsius

Lifting capacity in real conditions – factors

Holding efficiency is influenced by working environment parameters, mainly (from most important):

Air gap (between the magnet and the metal), because even a very small distance (e.g. 0.5 mm) results in a decrease in force by up to 50% (this also applies to varnish, corrosion or debris).
Load vector – highest force is reached only during pulling at a 90° angle. The resistance to sliding of the magnet along the surface is standardly many times smaller (approx. 1/5 of the lifting capacity).
Base massiveness – insufficiently thick sheet does not accept the full field, causing part of the power to be escaped into the air.
Material composition – different alloys attracts identically. Alloy additives worsen the attraction effect.
Plate texture – ground elements guarantee perfect abutment, which increases field saturation. Uneven metal reduce efficiency.
Temperature – heating the magnet causes a temporary drop of induction. It is worth remembering the thermal limit for a given model.

Holding force was tested on the plate surface of 20 mm thickness, when the force acted perpendicularly, however under attempts to slide the magnet the lifting capacity is smaller. Additionally, even a slight gap between the magnet and the plate decreases the load capacity.

H&S for magnets

GPS Danger

A strong magnetic field interferes with the functioning of compasses in smartphones and GPS navigation. Do not bring magnets close to a device to prevent breaking the sensors.

Powerful field

Use magnets with awareness. Their powerful strength can shock even experienced users. Stay alert and do not underestimate their force.

Danger to pacemakers

Individuals with a ICD have to maintain an absolute distance from magnets. The magnetism can disrupt the operation of the implant.

Permanent damage

Regular neodymium magnets (grade N) lose power when the temperature surpasses 80°C. Damage is permanent.

Choking Hazard

Neodymium magnets are not toys. Eating multiple magnets may result in them pinching intestinal walls, which poses a direct threat to life and necessitates immediate surgery.

Dust is flammable

Machining of NdFeB material poses a fire risk. Magnetic powder oxidizes rapidly with oxygen and is hard to extinguish.

Skin irritation risks

A percentage of the population suffer from a hypersensitivity to Ni, which is the typical protective layer for NdFeB magnets. Extended handling can result in skin redness. We suggest wear safety gloves.

Eye protection

Beware of splinters. Magnets can explode upon violent connection, ejecting shards into the air. Wear goggles.

Keep away from computers

Intense magnetic fields can erase data on payment cards, hard drives, and other magnetic media. Maintain a gap of min. 10 cm.

Serious injuries

Danger of trauma: The attraction force is so great that it can result in hematomas, crushing, and broken bones. Use thick gloves.

Important! Looking for details? Check our post: Are neodymium magnets dangerous?

MW 100x30 / N38 - cylindrical magnet

Technical - MW 100x30 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Engineering simulation of the magnet - technical parameters

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

Table 2: Shear load (wall) MW 100x30 / N38

Table 3: Vertical assembly (shearing) - vertical pull MW 100x30 / N38

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

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

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

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

Table 8: Dynamics (kinetic energy) - warning MW 100x30 / N38

Table 9: Corrosion resistance MW 100x30 / N38

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

Table 11: Submerged application MW 100x30 / N38

1. Sliding resistance

2. Efficiency vs thickness

3. Temperature resistance

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

Material specification

Ecology and recycling (GPSR)

Force (pull)

Field Strength

Other offers

MT 50x1.5x30000 - magnetic tape

UMC 60x9/5x15 / N38 - cylindrical magnetic holder

MP 24x16x2 / N38 - ring magnet

XT-6 magnetyzery do silników - BENZYNA i LPG + olej - XT-6 magnetizer

Strengths as well as weaknesses of neodymium magnets.

Benefits

Weaknesses

Holding force characteristics

Maximum magnetic pulling force – what affects it?

Lifting capacity in real conditions – factors

H&S for magnets

GPS Danger

Powerful field

Danger to pacemakers

Permanent damage

Choking Hazard

Dust is flammable

Skin irritation risks

Eye protection

Keep away from computers

Serious injuries

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

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

Table 2: Shear load (wall)
MW 100x30 / N38

Table 3: Vertical assembly (shearing) - vertical pull
MW 100x30 / N38

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

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

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

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

Table 8: Dynamics (kinetic energy) - warning
MW 100x30 / N38

Table 9: Corrosion resistance
MW 100x30 / N38

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

Table 11: Submerged application
MW 100x30 / N38