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MW 70x30 / 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 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

see properties »

317.17 ZŁ with VAT / pcs + price for transport

257.86 ZŁ net + 23% VAT / pcs

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Pick up the phone and ask +48 888 99 98 98 otherwise contact us using contact form the contact form page.
Parameters along with appearance of neodymium magnets can be tested on our online calculation tool.

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Technical data - 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

Technical simulation of the magnet - technical parameters

The following values constitute the direct effect of a physical analysis. Results are based on models for the class Nd₂Fe₁₄B. Real-world performance may differ from theoretical values. Use these calculations as a supplementary guide when designing systems.

Table 1: Static force (force vs distance) - characteristics
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	dangerous!
1 mm	3934 Gs 393.4 mT	137.11 kg / 302.27 lbs 137108.9 g / 1345.0 N	dangerous!
2 mm	3830 Gs 383.0 mT	129.96 kg / 286.52 lbs 129962.6 g / 1274.9 N	dangerous!
3 mm	3724 Gs 372.4 mT	122.86 kg / 270.87 lbs 122863.7 g / 1205.3 N	dangerous!
5 mm	3507 Gs 350.7 mT	108.99 kg / 240.28 lbs 108989.8 g / 1069.2 N	dangerous!
10 mm	2963 Gs 296.3 mT	77.77 kg / 171.46 lbs 77773.1 g / 763.0 N	dangerous!
15 mm	2452 Gs 245.2 mT	53.26 kg / 117.41 lbs 53257.6 g / 522.5 N	dangerous!
20 mm	2003 Gs 200.3 mT	35.55 kg / 78.38 lbs 35554.2 g / 348.8 N	dangerous!
30 mm	1321 Gs 132.1 mT	15.45 kg / 34.06 lbs 15450.6 g / 151.6 N	dangerous!
50 mm	601 Gs 60.1 mT	3.20 kg / 7.05 lbs 3199.7 g / 31.4 N	medium risk

Grip strength decreases drastically with every subsequent millimeter of distance. Keep in mind that even the smallest gap (e.g., dirt, paint, rust) noticeably reduces the pull force. Neodymiums work strongest at the point of direct contact; air break weakens the power. Analyze how rapidly the pull force drop, when the product does not touch flatly to the steel surface. When designing the assembly, discard additional spacers.

Table 2: Slippage hold (vertical surface)
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

This section shows the estimated weight limit required to cause the slippage of the magnet down against a upright metal surface (assuming typical friction). This value is a function of the gap size between the magnet and the metal.

Table 3: Wall mounting (shearing) - vertical pull
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 mounting a magnet on a vertical plane (e.g., a fridge), it you can count on just approx. 1/5 of nominal attraction strength. Gravity as well as a low friction coefficient mean that holders slip faster than they pull off. Designing a wall mount? Consider that the sliding force is noticeably lower than the perpendicular breakaway force. On a painted metal, the magnet will slip down under a significantly smaller cargo. Application of an anti-slip pad can significantly increase the grip.

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 sheet is not enough to take in the entire magnetic field, which weakens actual performance of the holder. Should you attach a powerful product to a too thin substrate, the magnetism will pass right through and the holding will be smaller. To squeeze the maximum of this magnet's power, you need a suitably thick element of metal. The material oversaturation causes that on delicate walls (e.g., car bodies), the magnet holds weaker. We advise picking the steel cross-section based on the following data.

Table 5: Thermal resistance (material behavior) - resistance threshold
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 irreversibly lose parameters after exceeding the maximum temperature. Avoid high temperatures – high temperature can permanently damage this magnet. As the temperature rises, the magnet's force briefly decreases. Avoid using this product close to ovens higher than its operating temperature limit. Exceeding the critical threshold will result in permanent loss of magnetism.

*Important note: Heat tolerance depends not only on the material grade, but also on the magnet's shape. Low-profile magnets (pancake types) are more susceptible to demagnetization sooner than long magnets. The danger warning in the table signals a risk of irreversible loss for this specific geometry.

Table 6: Two magnets (attraction) - forces in the system
MW 70x30 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear 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 magnetic products attract each other from a significantly greater distance than a neodymium and metal combination. The connection of magnet-to-magnet produces a massive flux and a larger range of operation. Want to build a solid fastener? Apply two magnets instead of one magnet and a steel. Remember that when connecting a pair of magnets, the impact force is massive. The repulsion force is marginally weaker than the attraction, but still impressive.
*Flux density for N-N configuration reaches ~0 Gs at the geometric center between the magnets (due to field cancellation).
Attention: Results demonstrate friction force of a pair of same neodymium magnets (friction ~0.15 for Ni-Ni plating).

Table 7: Hazards (implants) - precautionary measures
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
Mobile device	40 Gs (4.0 mT)	16.5 cm
Remote	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

Extremely neodym field is a serious hazard to IT equipment and pacemakers. These magnets produce a field that disrupts operation of sensitive medical devices. Be aware: the unseen radiation passes through tissues and plastic. Exceptional care must be taken by people with hearing aids and insulin pumps. The risk also applies to: automatic timepieces, car keys, speakers, and screens. Do not place the magnet near cards, HDD media, or precise measuring instruments.

Table 8: Impact energy (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

Neodymium magnets are delicate – a violent impact against metal can result in shattering. Pay attention to connection velocity – a neodymium left loose speeds with massive force. Striking energy can trigger coating fragments or dangerous crushing to fingers. Hold the magnet firmly during bringing near metal so it doesn't slam with momentum against the metal. A collision at high speed almost guarantees destruction of the neodymium. Wear eye protection when working with large magnets.

Table 9: Corrosion resistance
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)

The following table defines the conditions under which this product can be safely used. Moisture resistance is crucial for installations in bathrooms or outdoors.

Table 10: Construction data (Flux)
MW 70x30 / N38

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

Flux value emitted by the magnet pole. Key data when building generators and motors. P_c value determines the magnet's operating point.

Table 11: Physics of underwater searching
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%

Warning: Standard nickel requires drying after every contact with moisture; lack of maintenance will lead to rust spots.

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

1. Wall mount (shear)

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

2. Steel saturation

*Thin steel (e.g. computer case) significantly weakens the holding force.

3. Temperature resistance

*For N38 material, the max working temp is 80°C.

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

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

The chart above illustrates the magnetic characteristics of the material within the second quadrant of the hysteresis loop. The solid red line represents the demagnetization curve (material potential), while the dashed blue line is the load line based on the magnet's geometry. The P_c (Permeance Coefficient), also known as the load line slope, is a dimensionless value that describes the relationship between the magnet's shape and its magnetic stability. The intersection of these two lines (the black dot) is the operating point — it determines the actual magnetic flux density generated by the magnet in this specific configuration. A higher P_c value means the magnet is more 'slender' (tall relative to its area), resulting in a higher operating point and better resistance to irreversible demagnetization caused by external fields or temperature. A value of 0.42 is relatively low (typical for flat magnets), meaning the operating point is closer to the 'knee' of the curve — caution is advised when operating at temperatures near the maximum limit to avoid strength loss.

Engineering data and GPSR

Elemental analysis

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

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: 010096-2026

Measurement Calculator

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This product is an exceptionally strong rod magnet, made from modern NdFeB material, which, at dimensions of Ø70x30 mm, guarantees optimal power. The MW 70x30 / N38 model features an accuracy of ±0.1mm and industrial build quality, making it an ideal solution for the most demanding engineers and designers. As a magnetic rod with impressive force (approx. 144.18 kg), this product is available off-the-shelf from our European logistics center, ensuring rapid order fulfillment. Additionally, its triple-layer Ni-Cu-Ni coating secures it against corrosion in typical operating conditions, guaranteeing 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 1414.37 N with a weight of only 865.9 g, this cylindrical magnet is indispensable in miniature devices 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 chipping the coating 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.

Magnets N38 are suitable for 90% 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 (Ø70x30), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard available off-the-shelf in our store.

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 key parameter here is the lifting capacity amounting to approximately 144.18 kg (force ~1414.37 N), which, with such defined dimensions, proves the high power of the NdFeB material. The product has a [NiCuNi] coating, which protects the surface against oxidation, giving it an aesthetic, silvery shine.

This rod magnet is magnetized axially (along the height of 30 mm), which means that the N and S poles are located on the flat, circular surfaces. 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.

Advantages as well as disadvantages of Nd₂Fe₁₄B magnets.

Advantages

Besides their high retention, neodymium magnets are valued for these benefits:

They do not lose strength, even after nearly 10 years – the drop in power is only ~1% (according to tests),
They feature excellent resistance to weakening of magnetic properties due to opposing magnetic fields,
By covering with a lustrous layer of gold, the element acquires an elegant look,
Magnets possess impressive magnetic induction on the active area,
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...
Thanks to modularity in shaping and the ability to adapt to complex applications,
Wide application in advanced technology sectors – they are utilized in hard drives, brushless drives, medical devices, and other advanced devices.
Compactness – despite small sizes they provide effective action, making them ideal for precision applications

Weaknesses

Drawbacks and weaknesses of neodymium magnets: tips and applications.

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
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
Due to limitations in creating threads and complicated forms in magnets, we propose using cover - magnetic mount.
Possible danger related to microscopic parts of magnets are risky, when accidentally swallowed, which becomes key in the context of child health protection. Furthermore, small elements of these magnets are able to complicate diagnosis medical after entering the body.
High unit price – neodymium magnets cost more than other types of magnets (e.g. ferrite), which increases costs of application in large quantities

Lifting parameters

Maximum magnetic pulling force – what it depends on?

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

using a sheet made of low-carbon steel, functioning as a circuit closing element
possessing a massiveness of min. 10 mm to ensure full flux closure
with a plane perfectly flat
with zero gap (without impurities)
for force applied at a right angle (in the magnet axis)
at ambient temperature approx. 20 degrees Celsius

Lifting capacity in real conditions – factors

Bear in mind that the working load may be lower influenced by the following factors, starting with the most relevant:

Distance – existence of any layer (rust, tape, gap) acts as an insulator, which reduces capacity rapidly (even by 50% at 0.5 mm).
Angle of force application – highest force is obtained only during pulling at a 90° angle. The force required to slide of the magnet along the plate is standardly many times smaller (approx. 1/5 of the lifting capacity).
Wall thickness – thin material does not allow full use of the magnet. Part of the magnetic field passes through the material instead of converting into lifting capacity.
Chemical composition of the base – mild steel gives the best results. Alloy admixtures lower magnetic properties and holding force.
Surface quality – the smoother and more polished the plate, the better the adhesion and stronger the hold. Roughness creates an air distance.
Operating temperature – NdFeB sinters have a negative temperature coefficient. When it is hot they are weaker, and at low temperatures gain strength (up to a certain limit).

Lifting capacity was determined with the use of a polished steel plate of suitable thickness (min. 20 mm), under vertically applied force, in contrast under shearing force the load capacity is reduced by as much as fivefold. In addition, even a small distance between the magnet’s surface and the plate reduces the holding force.

Safety rules for work with neodymium magnets

Danger to the youngest

Always keep magnets away from children. Risk of swallowing is high, and the consequences of magnets clamping inside the body are life-threatening.

Crushing force

Large magnets can smash fingers in a fraction of a second. Never place your hand between two strong magnets.

Health Danger

Health Alert: Neodymium magnets can turn off pacemakers and defibrillators. Do not approach if you have medical devices.

Cards and drives

Device Safety: Neodymium magnets can damage data carriers and sensitive devices (pacemakers, medical aids, timepieces).

Shattering risk

Despite metallic appearance, the material is brittle and not impact-resistant. Avoid impacts, as the magnet may shatter into hazardous fragments.

Sensitization to coating

Nickel alert: The nickel-copper-nickel coating consists of nickel. If an allergic reaction appears, immediately stop working with magnets and use protective gear.

Fire risk

Dust created during cutting of magnets is flammable. Do not drill into magnets unless you are an expert.

Magnetic interference

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

Immense force

Before use, read the rules. Uncontrolled attraction can destroy the magnet or hurt your hand. Think ahead.

Permanent damage

Do not overheat. Neodymium magnets are susceptible to temperature. If you require operation above 80°C, ask us about HT versions (H, SH, UH).

Caution! Learn more about risks in the article: Safety of working with magnets.

MW 70x30 / N38 - cylindrical magnet

Technical data - MW 70x30 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Technical simulation of the magnet - technical parameters

Table 1: Static force (force vs distance) - characteristics MW 70x30 / N38

Table 2: Slippage hold (vertical surface) MW 70x30 / N38

Table 3: Wall mounting (shearing) - vertical pull MW 70x30 / N38

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

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

Table 6: Two magnets (attraction) - forces in the system MW 70x30 / N38

Table 7: Hazards (implants) - precautionary measures MW 70x30 / N38

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

Table 9: Corrosion resistance MW 70x30 / N38

Table 10: Construction data (Flux) MW 70x30 / N38

Table 11: Physics of underwater searching MW 70x30 / N38

1. Wall mount (shear)

2. Steel saturation

3. Temperature resistance

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

Elemental analysis

Sustainability

Magnet pull force

Magnetic Field

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Advantages as well as disadvantages of Nd2Fe14B magnets.

Advantages

Weaknesses

Lifting parameters

Maximum magnetic pulling force – what it depends on?

Lifting capacity in real conditions – factors

Safety rules for work with neodymium magnets

Danger to the youngest

Crushing force

Health Danger

Cards and drives

Shattering risk

Sensitization to coating

Fire risk

Magnetic interference

Immense force

Permanent damage

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (force vs distance) - characteristics
MW 70x30 / N38

Table 2: Slippage hold (vertical surface)
MW 70x30 / N38

Table 3: Wall mounting (shearing) - vertical pull
MW 70x30 / N38

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

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

Table 6: Two magnets (attraction) - forces in the system
MW 70x30 / N38

Table 7: Hazards (implants) - precautionary measures
MW 70x30 / N38

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

Table 9: Corrosion resistance
MW 70x30 / N38

Table 10: Construction data (Flux)
MW 70x30 / N38

Table 11: Physics of underwater searching
MW 70x30 / N38

Advantages as well as disadvantages of Nd₂Fe₁₄B magnets.