Product available Ships tomorrow

MW 70x30 / N38 - cylindrical magnet

Name: Dhit sp. z o.o.
Address: Kościuszki 6A, Ożarów Mazowiecki, mazowieckie, 05-850, PL
Telephone: +48 22 499 98 98
Price range: 1-6500 PLN

cylindrical magnet

Catalog no 010096

GTIN/EAN: 5906301810957

5.00

Diameter Ø

70 mm [±0,1 mm]

Height

30 mm [±0,1 mm]

Weight

865.9 g

Magnetization Direction

↑ axial

Load capacity

144.18 kg / 1414.37 N

Magnetic Induction

403.43 mT / 4034 Gs

Coating

[NiCuNi] Nickel

technical parameters »

317.17 ZŁ with VAT / pcs + price for transport

257.86 ZŁ net + 23% VAT / pcs

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Carbon Footprint – environmental impact GPSR Regulation – product safety

Engineering report for this magnet

Full PDF analysis: pull and shear force, effect of distance, temperature and plate thickness, safety distances and the demagnetization curve.

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Contact us by phone +48 888 99 98 98 otherwise send us a note through form the contact section.
Specifications as well as form of a neodymium magnet can be tested on our modular calculator.

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Technical - MW 70x30 / N38 - cylindrical magnet

Specification / characteristics - MW 70x30 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010096
GTIN/EAN	5906301810957
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	70 mm [±0,1 mm]
Height	30 mm [±0,1 mm]
Weight	865.9 g
Magnetization Direction	↑ axial
Load capacity ~ ?	144.18 kg / 1414.37 N
Magnetic Induction ~ ?	403.43 mT / 4034 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 70x30 / 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 analysis of the product - technical parameters

Presented data are the result of a mathematical calculation. Values rely on models for the material Nd₂Fe₁₄B. Operational conditions may deviate from the simulation results. Use these data as a supplementary guide for designers.

Table 1: Static pull force (pull vs gap) - interaction chart
MW 70x30 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	4034 Gs 403.4 mT	144.18 kg / 317.86 LBS 144180.0 g / 1414.4 N	critical level
1 mm	3934 Gs 393.4 mT	137.11 kg / 302.27 LBS 137108.9 g / 1345.0 N	critical level
2 mm	3830 Gs 383.0 mT	129.96 kg / 286.52 LBS 129962.6 g / 1274.9 N	critical level
3 mm	3724 Gs 372.4 mT	122.86 kg / 270.87 LBS 122863.7 g / 1205.3 N	critical level
5 mm	3507 Gs 350.7 mT	108.99 kg / 240.28 LBS 108989.8 g / 1069.2 N	critical level
10 mm	2963 Gs 296.3 mT	77.77 kg / 171.46 LBS 77773.1 g / 763.0 N	critical level
15 mm	2452 Gs 245.2 mT	53.26 kg / 117.41 LBS 53257.6 g / 522.5 N	critical level
20 mm	2003 Gs 200.3 mT	35.55 kg / 78.38 LBS 35554.2 g / 348.8 N	critical level
30 mm	1321 Gs 132.1 mT	15.45 kg / 34.06 LBS 15450.6 g / 151.6 N	critical level
50 mm	601 Gs 60.1 mT	3.20 kg / 7.05 LBS 3199.7 g / 31.4 N	medium risk

Magnetic force drops sharply with every mm of gap. Note that even the smallest gap (e.g., dirt, paint, veneer) noticeably weakens the grip. Magnetic products operate optimally in perfect adhesion; air break drastically cuts the force. Notice how rapidly the pull force fall, when the magnet does not touch tightly to the metal substrate. When planning the mounting, eliminate redundant distances.

Table 2: Slippage load (wall)
MW 70x30 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	28.84 kg / 63.57 LBS 28836.0 g / 282.9 N
1 mm	Stal (~0.2)	27.42 kg / 60.46 LBS 27422.0 g / 269.0 N
2 mm	Stal (~0.2)	25.99 kg / 57.30 LBS 25992.0 g / 255.0 N
3 mm	Stal (~0.2)	24.57 kg / 54.17 LBS 24572.0 g / 241.1 N
5 mm	Stal (~0.2)	21.80 kg / 48.06 LBS 21798.0 g / 213.8 N
10 mm	Stal (~0.2)	15.55 kg / 34.29 LBS 15554.0 g / 152.6 N
15 mm	Stal (~0.2)	10.65 kg / 23.48 LBS 10652.0 g / 104.5 N
20 mm	Stal (~0.2)	7.11 kg / 15.67 LBS 7110.0 g / 69.7 N
30 mm	Stal (~0.2)	3.09 kg / 6.81 LBS 3090.0 g / 30.3 N
50 mm	Stal (~0.2)	0.64 kg / 1.41 LBS 640.0 g / 6.3 N

The following data shows the theoretical shear load sufficient to start the shifting of the magnet downwards along a upright metal surface (considering typical friction). This value is relative to the air gap between the magnet and the surface.

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces
MW 70x30 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	43.25 kg / 95.36 LBS 43254.0 g / 424.3 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	28.84 kg / 63.57 LBS 28836.0 g / 282.9 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	14.42 kg / 31.79 LBS 14418.0 g / 141.4 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	72.09 kg / 158.93 LBS 72090.0 g / 707.2 N

When hanging a magnet on a upright plane (e.g., a board), it will maintain just about 20%-30% of its nominal power. Gravitational force and a low friction coefficient influence the fact that magnets slide down easier than they detach. Planning a wall mount? Remember that the shear force is significantly lower than the perpendicular breakaway force. On a smooth steel, the element will slide down under a noticeably lighter cargo. Utilizing a rubberized pad can drastically raise the stability.

Table 4: Steel thickness (saturation) - power losses
MW 70x30 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	3%	4.81 kg / 10.60 LBS 4806.0 g / 47.1 N
1 mm	8%	12.01 kg / 26.49 LBS 12015.0 g / 117.9 N
2 mm	17%	24.03 kg / 52.98 LBS 24030.0 g / 235.7 N
3 mm	25%	36.05 kg / 79.47 LBS 36045.0 g / 353.6 N
5 mm	42%	60.08 kg / 132.44 LBS 60075.0 g / 589.3 N
10 mm	83%	120.15 kg / 264.89 LBS 120150.0 g / 1178.7 N
11 mm	92%	132.17 kg / 291.37 LBS 132165.0 g / 1296.5 N
12 mm	100%	144.18 kg / 317.86 LBS 144180.0 g / 1414.4 N

A thin metal plate is unable to conduct the entire magnetic field, which weakens actual performance of the magnet. If you install a neodymium to a weak sheet, the flux will pass right through and the attraction force will be weaker. To achieve the maximum of this neodymium's power, you require a sufficiently solid backing of steel. The saturation effect means that on thin elements (e.g., thin profiles), the product works worse. We recommend selecting the steel dimension from these parameters.

Table 5: Thermal resistance (material behavior) - power drop
MW 70x30 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	144.18 kg / 317.86 LBS 144180.0 g / 1414.4 N	OK
40 °C	-2.2%	141.01 kg / 310.87 LBS 141008.0 g / 1383.3 N	OK
60 °C	-4.4%	137.84 kg / 303.88 LBS 137836.1 g / 1352.2 N
80 °C	-6.6%	134.66 kg / 296.88 LBS 134664.1 g / 1321.1 N
100 °C	-28.8%	102.66 kg / 226.32 LBS 102656.2 g / 1007.1 N

Standard neodymium magnets change their properties strength after exceeding the maximum temperature. Avoid high temperatures – heat can irreversibly damage this magnet. With increasing heat, the magnet's force briefly drops. Do not use this product close to heaters exceeding its operating temperature limit. Exceeding the critical threshold will result in irreversible degradation of magnetism.

*Important note: Temperature resistance is determined by both grade, and the Permeance Coefficient Pc. Low-profile magnets (pancake types) may lose charge permanently at lower temperatures than long magnets. Red status in the table signals a risk of irreversible loss for this specific geometry.

Table 6: Magnet-Magnet interaction (repulsion) - field range
MW 70x30 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Lateral Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	386.08 kg / 851.15 LBS 5 354 Gs	57.91 kg / 127.67 LBS 57911 g / 568.1 N	N/A
1 mm	376.71 kg / 830.51 LBS 7 969 Gs	56.51 kg / 124.58 LBS 56507 g / 554.3 N	339.04 kg / 747.46 LBS ~0 Gs
2 mm	367.14 kg / 809.41 LBS 7 867 Gs	55.07 kg / 121.41 LBS 55071 g / 540.2 N	330.43 kg / 728.47 LBS ~0 Gs
3 mm	357.57 kg / 788.30 LBS 7 764 Gs	53.63 kg / 118.24 LBS 53635 g / 526.2 N	321.81 kg / 709.47 LBS ~0 Gs
5 mm	338.48 kg / 746.21 LBS 7 554 Gs	50.77 kg / 111.93 LBS 50772 g / 498.1 N	304.63 kg / 671.59 LBS ~0 Gs
10 mm	291.85 kg / 643.41 LBS 7 014 Gs	43.78 kg / 96.51 LBS 43777 g / 429.5 N	262.66 kg / 579.07 LBS ~0 Gs
20 mm	208.26 kg / 459.13 LBS 5 925 Gs	31.24 kg / 68.87 LBS 31238 g / 306.4 N	187.43 kg / 413.21 LBS ~0 Gs
50 mm	62.81 kg / 138.47 LBS 3 254 Gs	9.42 kg / 20.77 LBS 9421 g / 92.4 N	56.53 kg / 124.62 LBS ~0 Gs
60 mm	41.37 kg / 91.21 LBS 2 641 Gs	6.21 kg / 13.68 LBS 6206 g / 60.9 N	37.24 kg / 82.09 LBS ~0 Gs
70 mm	27.41 kg / 60.43 LBS 2 150 Gs	4.11 kg / 9.06 LBS 4112 g / 40.3 N	24.67 kg / 54.39 LBS ~0 Gs
80 mm	18.35 kg / 40.46 LBS 1 759 Gs	2.75 kg / 6.07 LBS 2753 g / 27.0 N	16.52 kg / 36.41 LBS ~0 Gs
90 mm	12.45 kg / 27.44 LBS 1 449 Gs	1.87 kg / 4.12 LBS 1867 g / 18.3 N	11.20 kg / 24.70 LBS ~0 Gs
100 mm	8.57 kg / 18.89 LBS 1 202 Gs	1.29 kg / 2.83 LBS 1285 g / 12.6 N	7.71 kg / 17.00 LBS ~0 Gs

Two magnets attract each other from a significantly greater distance than a magnet and steel combination. The setup of magnet-to-magnet generates a stronger field and a larger range of action. Planning to create a powerful holder? Apply two magnets instead of one magnet and a steel. Be careful that when connecting a pair of magnets, the impact force is massive. The repulsion force is a bit weaker than the attraction, but still large.
*The magnetic induction between like poles drops to ~0 Gs at the midpoint between the magnets (due to field cancellation).
* Results apply to shear force of two same neodymium magnets (friction ~0.15 for Ni-Ni layer).

Table 7: Protective zones (electronics) - warnings
MW 70x30 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	34.5 cm
Hearing aid	10 Gs (1.0 mT)	27.0 cm
Timepiece	20 Gs (2.0 mT)	21.0 cm
Phone / Smartphone	40 Gs (4.0 mT)	16.5 cm
Car key	50 Gs (5.0 mT)	15.0 cm
Payment card	400 Gs (40.0 mT)	6.5 cm
HDD hard drive	600 Gs (60.0 mT)	5.5 cm

Powerful magnet radiation poses a large risk to IT equipment as well as medical implants. These NdFeB products produce a field that prevents correct functioning of digital equipment. Notice: the invisible magnetic field acts through matter and housings. Special caution must be exercised by people with cochlear implants and insulin pumps. Also at risk are: automatic timepieces, remotes, membranes, and displays. Avoid contact with magnetic cards, hard drives, or sensitive navigation tools.

Table 8: Collisions (kinetic energy) - warning
MW 70x30 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	16.84 km/h (4.68 m/s)	9.47 J
30 mm	24.00 km/h (6.67 m/s)	19.25 J
50 mm	29.50 km/h (8.19 m/s)	29.07 J
100 mm	41.18 km/h (11.44 m/s)	56.66 J

NdFeB products are very brittle – a violent impact against metal can result in shattering. Control the attraction moment – a magnet released freely turns into a projectile. Striking energy can trigger coating fragments or painful pinches to skin. Always hold the magnet during mounting so it doesn't hit violently against the steel surface. A contact at a velocity of dozens of km/h almost guarantees destruction of the magnet. Wear eye protection when playing with large magnets.

Table 9: Anti-corrosion coating durability
MW 70x30 / 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 (P_c)
MW 70x30 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	159 225 Mx	1592.3 µWb
P_c Coefficient	0.53	Low (Flat)

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

Table 11: Submerged application
MW 70x30 / N38

Environment	Effective steel pull	Effect
Air (land)	144.18 kg	Standard
Water (riverbed)	165.09 kg (+20.91 kg buoyancy gain)	+14.5%

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

In water, the magnet feels stronger thanks to Archimedes' principle. Note: for permanent underwater work, we recommend magnets with an anti-corrosive (epoxy) coating.

1. Wall mount (shear)

*Note: On a vertical wall, the magnet holds just ~20% of its perpendicular strength.

2. Steel saturation

*Thin metal sheet (e.g. computer case) significantly reduces the holding force.

3. Thermal stability

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

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 0.53

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.

Engineering data and GPSR

Chemical composition

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: 010096-2026

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The presented product is an incredibly powerful cylindrical magnet, made from advanced NdFeB material, which, with dimensions of Ø70x30 mm, guarantees the highest energy density. The MW 70x30 / N38 model is characterized by 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. 144.18 kg), this product is in stock from our warehouse in Poland, ensuring rapid order fulfillment. Furthermore, its Ni-Cu-Ni coating effectively protects it against corrosion in typical operating conditions, ensuring an aesthetic appearance and durability for years.

It finds application in DIY projects, advanced automation, and broadly understood industry, serving as a positioning or actuating element. Thanks to the high power of 1414.37 N with a weight of only 865.9 g, this rod is indispensable in electronics and wherever every gram matters.

Due to the brittleness of the NdFeB material, we absolutely advise against force-fitting (so-called press-fit), as this risks immediate cracking of this professional component. To ensure long-term durability in industry, anaerobic resins are used, which do not react with the nickel coating and fill the gap, guaranteeing durability of the connection.

Magnets N38 are strong enough for 90% 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 (Ø70x30), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard in continuous sale in our warehouse.

This model is characterized by dimensions Ø70x30 mm, which, at a weight of 865.9 g, makes it an element with impressive magnetic energy density. The value of 1414.37 N means that the magnet is capable of holding a weight many times exceeding its own mass of 865.9 g. The product has a [NiCuNi] coating, which secures it against oxidation, giving it an aesthetic, silvery shine.

Standardly, the magnetic axis runs through the center of the cylinder, causing the greatest attraction force to occur on the bases with a diameter of 70 mm. 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 Nd₂Fe₁₄B magnets.

Advantages

In addition to their magnetic efficiency, neodymium magnets provide the following advantages:

They do not lose magnetism, even after approximately ten years – the drop in lifting capacity is only ~1% (theoretically),
They are noted for resistance to demagnetization induced by presence of other magnetic fields,
A magnet with a smooth gold surface looks better,
Neodymium magnets ensure maximum magnetic induction on a small area, which allows for strong attraction,
Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and are able to act (depending on the shape) even at a temperature of 230°C or more...
Thanks to versatility in designing and the ability to modify to specific needs,
Wide application in future technologies – they are used in data components, brushless drives, advanced medical instruments, as well as other advanced devices.
Compactness – despite small sizes they provide effective action, making them ideal for precision applications

Weaknesses

Disadvantages of NdFeB magnets:

At strong impacts they can break, therefore we recommend placing them in steel cases. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
Neodymium magnets decrease their power under the influence of heating. As soon as 80°C is exceeded, many of them start losing their power. Therefore, we recommend our special magnets marked [AH], which maintain stability even at temperatures up to 230°C
Due to the susceptibility of magnets to corrosion in a humid environment, we advise using waterproof magnets made of rubber, plastic or other material immune to moisture, when using outdoors
We suggest cover - magnetic holder, due to difficulties in realizing threads inside the magnet and complicated shapes.
Health risk related to microscopic parts of magnets pose a threat, if swallowed, which becomes key in the context of child health protection. Furthermore, small components of these devices are able to complicate diagnosis medical after entering the body.
Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications

Holding force characteristics

Breakaway strength of the magnet in ideal conditions – what it depends on?

Information about lifting capacity was defined for optimal configuration, taking into account:

on a plate made of mild steel, optimally conducting the magnetic field
possessing a thickness of at least 10 mm to ensure full flux closure
characterized by even structure
under conditions of ideal adhesion (surface-to-surface)
during detachment in a direction vertical to the mounting surface
at ambient temperature room level

Impact of factors on magnetic holding capacity in practice

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

Clearance – the presence of any layer (paint, tape, air) interrupts the magnetic circuit, which lowers capacity rapidly (even by 50% at 0.5 mm).
Loading method – declared lifting capacity refers to pulling vertically. When slipping, the magnet holds much less (often approx. 20-30% of maximum force).
Wall thickness – the thinner the sheet, the weaker the hold. Magnetic flux passes through the material instead of converting into lifting capacity.
Steel type – mild steel attracts best. Alloy steels decrease magnetic permeability and holding force.
Surface structure – the smoother and more polished the plate, the larger the contact zone and higher the lifting capacity. Unevenness acts like micro-gaps.
Heat – neodymium magnets have a sensitivity to temperature. When it is hot they are weaker, and at low temperatures gain strength (up to a certain limit).

Lifting capacity was measured using a steel plate with a smooth surface of suitable thickness (min. 20 mm), under perpendicular detachment force, whereas under attempts to slide the magnet the lifting capacity is smaller. Additionally, even a minimal clearance between the magnet and the plate decreases the holding force.

Safety rules for work with neodymium magnets

Do not drill into magnets

Machining of NdFeB material carries a risk of fire risk. Magnetic powder reacts violently with oxygen and is difficult to extinguish.

Do not underestimate power

Before starting, check safety instructions. Sudden snapping can destroy the magnet or hurt your hand. Think ahead.

Nickel allergy

Nickel alert: The nickel-copper-nickel coating contains nickel. If redness appears, immediately stop handling magnets and use protective gear.

Eye protection

NdFeB magnets are ceramic materials, which means they are prone to chipping. Collision of two magnets will cause them breaking into shards.

GPS and phone interference

Note: neodymium magnets generate a field that confuses precision electronics. Maintain a safe distance from your mobile, tablet, and GPS.

Medical implants

Warning for patients: Strong magnetic fields affect medical devices. Keep minimum 30 cm distance or ask another person to handle the magnets.

Finger safety

Mind your fingers. Two powerful magnets will join instantly with a force of massive weight, crushing anything in their path. Be careful!

Magnetic media

Powerful magnetic fields can erase data on credit cards, HDDs, and other magnetic media. Maintain a gap of at least 10 cm.

Adults only

Strictly store magnets out of reach of children. Risk of swallowing is significant, and the effects of magnets connecting inside the body are life-threatening.

Heat warning

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

Important! Details about risks in the article: Magnet Safety Guide.

MW 70x30 / N38 - cylindrical magnet

Technical - MW 70x30 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Engineering analysis of the product - technical parameters

Table 1: Static pull force (pull vs gap) - interaction chart MW 70x30 / N38

Table 2: Slippage load (wall) MW 70x30 / N38

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces MW 70x30 / N38

Table 4: Steel thickness (saturation) - power losses MW 70x30 / N38

Table 5: Thermal resistance (material behavior) - power drop MW 70x30 / N38

Table 6: Magnet-Magnet interaction (repulsion) - field range MW 70x30 / N38

Table 7: Protective zones (electronics) - warnings MW 70x30 / N38

Table 8: Collisions (kinetic energy) - warning MW 70x30 / N38

Table 9: Anti-corrosion coating durability MW 70x30 / N38

Table 10: Electrical data (Pc) MW 70x30 / N38

Table 11: Submerged application MW 70x30 / N38

1. Wall mount (shear)

2. Steel saturation

3. Thermal stability

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

Chemical composition

Ecology and recycling (GPSR)

Magnet pull force

Field Strength

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Strengths as well as weaknesses of Nd2Fe14B magnets.

Advantages

Weaknesses

Holding force characteristics

Breakaway strength of the magnet in ideal conditions – what it depends on?

Impact of factors on magnetic holding capacity in practice

Safety rules for work with neodymium magnets

Do not drill into magnets

Do not underestimate power

Nickel allergy

Eye protection

GPS and phone interference

Medical implants

Finger safety

Magnetic media

Adults only

Heat warning

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (pull vs gap) - interaction chart
MW 70x30 / N38

Table 2: Slippage load (wall)
MW 70x30 / N38

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces
MW 70x30 / N38

Table 4: Steel thickness (saturation) - power losses
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Table 5: Thermal resistance (material behavior) - power drop
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Table 6: Magnet-Magnet interaction (repulsion) - field range
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Table 7: Protective zones (electronics) - warnings
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Table 8: Collisions (kinetic energy) - warning
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Table 9: Anti-corrosion coating durability
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Table 10: Electrical data (P_c)
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Table 11: Submerged application
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Strengths as well as weaknesses of Nd₂Fe₁₄B magnets.