Product available Ships today (order by 14:00)

MW 70x20 / 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
Rating: 5

cylindrical magnet

Catalog no 010095

GTIN/EAN: 5906301810940

5.00

Diameter Ø

70 mm [±0,1 mm]

Height

20 mm [±0,1 mm]

Weight

577.27 g

Magnetization Direction

↑ axial

Load capacity

99.83 kg / 979.00 N

Magnetic Induction

307.57 mT / 3076 Gs

Coating

[NiCuNi] Nickel

product specifications »

239.85 ZŁ with VAT / pcs + price for transport

195.00 ZŁ net + 23% VAT / pcs

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Product card - MW 70x20 / N38 - cylindrical magnet

Specification / characteristics - MW 70x20 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010095
GTIN/EAN	5906301810940
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	20 mm [±0,1 mm]
Weight	577.27 g
Magnetization Direction	↑ axial
Load capacity ~ ?	99.83 kg / 979.00 N
Magnetic Induction ~ ?	307.57 mT / 3076 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 70x20 / 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 product - data

These data are the result of a mathematical calculation. Results were calculated on models for the class Nd₂Fe₁₄B. Actual performance might slightly deviate from the simulation results. Please consider these calculations as a reference point for designers.

Table 1: Static pull force (pull vs gap) - power drop
MW 70x20 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	3075 Gs 307.5 mT	99.83 kg / 220.09 lbs 99830.0 g / 979.3 N	critical level
1 mm	3013 Gs 301.3 mT	95.80 kg / 211.21 lbs 95804.4 g / 939.8 N	critical level
2 mm	2946 Gs 294.6 mT	91.59 kg / 201.92 lbs 91587.7 g / 898.5 N	critical level
3 mm	2875 Gs 287.5 mT	87.27 kg / 192.39 lbs 87266.0 g / 856.1 N	critical level
5 mm	2727 Gs 272.7 mT	78.48 kg / 173.02 lbs 78482.2 g / 769.9 N	critical level
10 mm	2332 Gs 233.2 mT	57.38 kg / 126.50 lbs 57380.6 g / 562.9 N	critical level
15 mm	1942 Gs 194.2 mT	39.80 kg / 87.73 lbs 39795.7 g / 390.4 N	critical level
20 mm	1590 Gs 159.0 mT	26.68 kg / 58.82 lbs 26680.3 g / 261.7 N	critical level
30 mm	1044 Gs 104.4 mT	11.51 kg / 25.38 lbs 11511.2 g / 112.9 N	critical level
50 mm	466 Gs 46.6 mT	2.29 kg / 5.06 lbs 2294.1 g / 22.5 N	warning

Magnetic force decreases drastically with every subsequent millimeter of spacing. Keep in mind that even a very thin break (e.g., dirt, paint, dust) significantly diminishes the holding power. Magnets hold most effectively in perfect adhesion; distance nullifies the force. See how flashily the pull force drop, when the product does not adhere tightly to the metal substrate. When planning the assembly, eliminate redundant distances.

Table 2: Shear force (vertical surface)
MW 70x20 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	19.97 kg / 44.02 lbs 19966.0 g / 195.9 N
1 mm	Stal (~0.2)	19.16 kg / 42.24 lbs 19160.0 g / 188.0 N
2 mm	Stal (~0.2)	18.32 kg / 40.38 lbs 18318.0 g / 179.7 N
3 mm	Stal (~0.2)	17.45 kg / 38.48 lbs 17454.0 g / 171.2 N
5 mm	Stal (~0.2)	15.70 kg / 34.60 lbs 15696.0 g / 154.0 N
10 mm	Stal (~0.2)	11.48 kg / 25.30 lbs 11476.0 g / 112.6 N
15 mm	Stal (~0.2)	7.96 kg / 17.55 lbs 7960.0 g / 78.1 N
20 mm	Stal (~0.2)	5.34 kg / 11.76 lbs 5336.0 g / 52.3 N
30 mm	Stal (~0.2)	2.30 kg / 5.08 lbs 2302.0 g / 22.6 N
50 mm	Stal (~0.2)	0.46 kg / 1.01 lbs 458.0 g / 4.5 N

This section presents the approximate weight limit sufficient to start the slippage of the magnet down against a vertical metal surface (assuming typical friction coefficient). The holding force varies with the distance between the magnet and the metal.

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces
MW 70x20 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	29.95 kg / 66.03 lbs 29949.0 g / 293.8 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	19.97 kg / 44.02 lbs 19966.0 g / 195.9 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	9.98 kg / 22.01 lbs 9983.0 g / 97.9 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	49.92 kg / 110.04 lbs 49915.0 g / 489.7 N

When mounting a magnet on a upright plane (e.g., a car body), it will maintain just about 1/5 of nominal attraction strength. Gravitational force as well as a low friction coefficient mean that holders move down easier than they detach. Planning a wall mount? Remember that the shear force is significantly lower than the perpendicular breakaway force. On a slippery surface, the magnet will slide down under a noticeably lighter cargo. Using a rubber layer can drastically raise the stability.

Table 4: Steel thickness (substrate influence) - power losses
MW 70x20 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	3%	3.33 kg / 7.34 lbs 3327.7 g / 32.6 N
1 mm	8%	8.32 kg / 18.34 lbs 8319.2 g / 81.6 N
2 mm	17%	16.64 kg / 36.68 lbs 16638.3 g / 163.2 N
3 mm	25%	24.96 kg / 55.02 lbs 24957.5 g / 244.8 N
5 mm	42%	41.60 kg / 91.70 lbs 41595.8 g / 408.1 N
10 mm	83%	83.19 kg / 183.41 lbs 83191.7 g / 816.1 N
11 mm	92%	91.51 kg / 201.75 lbs 91510.8 g / 897.7 N
12 mm	100%	99.83 kg / 220.09 lbs 99830.0 g / 979.3 N

A too thin steel cannot focus the full magnetic flux, which weakens actual performance of the magnet. Should you mount a strong magnet to a weak sheet, the flux will penetrate right through and the holding will be smaller. To squeeze full efficiency of this magnet's potential, you require a sufficiently solid piece of steel. The saturation phenomenon causes that on sheet metal structures (e.g., thin profiles), the magnet shows lower pull force. We recommend selecting the steel cross-section according to the table below.

Table 5: Thermal stability (material behavior) - resistance threshold
MW 70x20 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	99.83 kg / 220.09 lbs 99830.0 g / 979.3 N	OK
40 °C	-2.2%	97.63 kg / 215.25 lbs 97633.7 g / 957.8 N	OK
60 °C	-4.4%	95.44 kg / 210.40 lbs 95437.5 g / 936.2 N
80 °C	-6.6%	93.24 kg / 205.56 lbs 93241.2 g / 914.7 N
100 °C	-28.8%	71.08 kg / 156.70 lbs 71079.0 g / 697.3 N

Ordinary NdFeB products lose parameters past the thermal threshold. Protect against heat – heat can irreversibly damage this magnet. With increasing heat, the neodymium's power temporarily lowers. Refrain from using this product close to ovens higher than its operating temperature limit. Exceeding the critical threshold will result in destruction of magnetism.

*Engineering note: Thermal stability is determined by both grade, and the Permeance Coefficient Pc. Thin magnets (low permeance coefficient) risk losing magnetic properties at lower temperatures 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 70x20 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	224.41 kg / 494.73 lbs 4 665 Gs	33.66 kg / 74.21 lbs 33661 g / 330.2 N	N/A
1 mm	219.98 kg / 484.97 lbs 6 090 Gs	33.00 kg / 72.74 lbs 32997 g / 323.7 N	197.98 kg / 436.47 lbs ~0 Gs
2 mm	215.36 kg / 474.78 lbs 6 026 Gs	32.30 kg / 71.22 lbs 32304 g / 316.9 N	193.82 kg / 427.31 lbs ~0 Gs
3 mm	210.66 kg / 464.41 lbs 5 959 Gs	31.60 kg / 69.66 lbs 31598 g / 310.0 N	189.59 kg / 417.97 lbs ~0 Gs
5 mm	201.05 kg / 443.23 lbs 5 822 Gs	30.16 kg / 66.48 lbs 30157 g / 295.8 N	180.94 kg / 398.91 lbs ~0 Gs
10 mm	176.42 kg / 388.94 lbs 5 454 Gs	26.46 kg / 58.34 lbs 26463 g / 259.6 N	158.78 kg / 350.05 lbs ~0 Gs
20 mm	128.99 kg / 284.36 lbs 4 663 Gs	19.35 kg / 42.65 lbs 19348 g / 189.8 N	116.09 kg / 255.93 lbs ~0 Gs
50 mm	39.50 kg / 87.08 lbs 2 581 Gs	5.93 kg / 13.06 lbs 5925 g / 58.1 N	35.55 kg / 78.38 lbs ~0 Gs
60 mm	25.88 kg / 57.05 lbs 2 089 Gs	3.88 kg / 8.56 lbs 3881 g / 38.1 N	23.29 kg / 51.34 lbs ~0 Gs
70 mm	17.01 kg / 37.49 lbs 1 693 Gs	2.55 kg / 5.62 lbs 2551 g / 25.0 N	15.31 kg / 33.74 lbs ~0 Gs
80 mm	11.28 kg / 24.86 lbs 1 379 Gs	1.69 kg / 3.73 lbs 1692 g / 16.6 N	10.15 kg / 22.38 lbs ~0 Gs
90 mm	7.57 kg / 16.69 lbs 1 130 Gs	1.14 kg / 2.50 lbs 1136 g / 11.1 N	6.81 kg / 15.02 lbs ~0 Gs
100 mm	5.16 kg / 11.37 lbs 932 Gs	0.77 kg / 1.71 lbs 774 g / 7.6 N	4.64 kg / 10.23 lbs ~0 Gs

Two magnetic products attract each other from a much further distance than a magnet and steel combination. The connection of two magnets creates a more powerful interaction and a further horizon of performance. Planning to create a powerful holder? Apply two magnets instead of a neodymium and a striker plate. Remember that when attracting two neodymiums, the pinch force is extreme. The levitation is slightly lower than the connection force, but still significant.
*Field value in repulsion mode drops to ~0 Gs in the exact middle between the magnets (due to field cancellation).
Attention: Calculations refer to sliding force of two same magnets (friction ~0.15 for Ni-Ni plating).

Table 7: Protective zones (implants) - warnings
MW 70x20 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	30.5 cm
Hearing aid	10 Gs (1.0 mT)	24.0 cm
Mechanical watch	20 Gs (2.0 mT)	18.5 cm
Phone / Smartphone	40 Gs (4.0 mT)	14.5 cm
Remote	50 Gs (5.0 mT)	13.5 cm
Payment card	400 Gs (40.0 mT)	5.5 cm
HDD hard drive	600 Gs (60.0 mT)	4.5 cm

Extremely neodym field poses a real danger to electronics as well as medical implants. These magnets produce a field that prevents correct functioning of sensitive medical devices. Be aware: the unseen radiation penetrates the body and glass. Increased vigilance must be taken by people with hearing aids and drug dispensers. The risk also applies to: mechanical watches, car keys, speakers, and displays. Do not bring the product near payment cards, hard drives, or precise measuring instruments.

Table 8: Dynamics (cracking risk) - warning
MW 70x20 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	17.39 km/h (4.83 m/s)	6.73 J
30 mm	24.57 km/h (6.83 m/s)	13.45 J
50 mm	30.08 km/h (8.36 m/s)	20.15 J
100 mm	41.97 km/h (11.66 m/s)	39.23 J

Magnetic elements are very brittle – a collision with steel causes immediate chipping. Control the attraction moment – a magnet released freely turns into a projectile. Striking energy can destroy the magnet or dangerous crushing to fingers. Hold the magnet firmly during mounting so it doesn't slam with momentum against the metal. A contact at a velocity of dozens of km/h almost guarantees destruction of the neodymium. Wear eye protection when playing with large magnets.

Table 9: Surface protection spec
MW 70x20 / N38

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

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

Table 10: Construction data (P_c)
MW 70x20 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	128 363 Mx	1283.6 µWb
P_c Coefficient	0.39	Low (Flat)

Total magnetic flux emitted by the magnet pole. Essential parameter when building generators and motors. P_c value defines the working geometry.

Table 11: Submerged application
MW 70x20 / N38

Environment	Effective steel pull	Effect
Air (land)	99.83 kg	Standard
Water (riverbed)	114.31 kg (+14.48 kg buoyancy gain)	+14.5%

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

In water, the magnet feels stronger thanks to Archimedes' principle. However, remember the water resistance when pulling the rope quickly.

1. Shear force

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

2. Steel saturation

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

3. Heat tolerance

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

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 0.39

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 specification and ecology

Elemental analysis

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

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: 010095-2026

Magnet Unit Converter

Force (pull)

Kilograms (kg)

Newtons (N)

lbs

Magnetic Induction

Induction (Gs)

Tesla (T)

Put a figure in just one field to see the conversion for the other fields at once.

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The presented product is an incredibly powerful cylinder magnet, produced from advanced NdFeB material, which, with dimensions of Ø70x20 mm, guarantees the highest energy density. The MW 70x20 / N38 component is characterized by a tolerance of ±0.1mm and professional build quality, making it an ideal solution for the most demanding engineers and designers. As a cylindrical magnet with significant force (approx. 99.83 kg), this product is in stock from our European logistics center, ensuring lightning-fast order fulfillment. Furthermore, its Ni-Cu-Ni coating effectively protects it against corrosion in standard operating conditions, ensuring an aesthetic appearance and durability for years.

It successfully proves itself in DIY projects, advanced automation, and broadly understood industry, serving as a positioning or actuating element. Thanks to the pull force of 979.00 N with a weight of only 577.27 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 immediate cracking of this professional component. To ensure stability in industry, specialized industrial adhesives are used, which are safe for nickel and fill the gap, guaranteeing durability of the connection.

Grade N38 is the most popular standard for industrial neodymium magnets, offering an optimal price-to-power ratio and operational stability. If you need even stronger magnets in the same volume (Ø70x20), 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 70 mm and height 20 mm. The key parameter here is the lifting capacity amounting to approximately 99.83 kg (force ~979.00 N), which, with such defined dimensions, proves the high grade 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 20 mm), which means that the N and S poles are located on the flat, circular surfaces. Such an arrangement is standard 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 through the diameter if your project requires it.

Strengths as well as weaknesses of Nd₂Fe₁₄B magnets.

Pros

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

They virtually do not lose power, because even after ten years the decline in efficiency is only ~1% (in laboratory conditions),
They do not lose their magnetic properties even under external field action,
The use of an refined layer of noble metals (nickel, gold, silver) causes the element to present itself better,
The surface of neodymium magnets generates a unique magnetic field – this is one of their assets,
Due to their durability and thermal resistance, neodymium magnets are capable of operate (depending on the form) even at high temperatures reaching 230°C or more...
Possibility of individual modeling as well as optimizing to complex requirements,
Huge importance in modern industrial fields – they find application in HDD drives, electric motors, medical equipment, as well as multitasking production systems.
Thanks to their power density, small magnets offer high operating force, occupying minimum space,

Limitations

What to avoid - cons of neodymium magnets: tips and applications.

Brittleness is one of their disadvantages. Upon strong impact they can fracture. We recommend keeping them in a special holder, which not only protects them against impacts but also increases their durability
Neodymium magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop of power (a factor is the shape and dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are extremely resistant to heat
Magnets exposed to a humid environment can corrode. Therefore while using outdoors, we suggest using waterproof magnets made of rubber, plastic or other material protecting against moisture
We recommend cover - magnetic holder, due to difficulties in realizing nuts inside the magnet and complex shapes.
Health risk related to microscopic parts of magnets are risky, if swallowed, which is particularly important in the context of child health protection. Furthermore, tiny parts of these magnets can disrupt the diagnostic process medical after entering the body.
With mass production the cost of neodymium magnets can be a barrier,

Lifting parameters

Detachment force of the magnet in optimal conditions – what contributes to it?

Information about lifting capacity was determined for optimal configuration, including:

using a sheet made of high-permeability steel, serving as a ideal flux conductor
whose thickness is min. 10 mm
with a surface free of scratches
with direct contact (no impurities)
during detachment in a direction vertical to the plane
in temp. approx. 20°C

Impact of factors on magnetic holding capacity in practice

Real force is influenced by working environment parameters, such as (from most important):

Space between surfaces – every millimeter of distance (caused e.g. by varnish or unevenness) diminishes the magnet efficiency, often by half at just 0.5 mm.
Pull-off angle – remember that the magnet holds strongest perpendicularly. Under sliding down, the holding force drops significantly, often to levels of 20-30% of the maximum value.
Plate thickness – too thin sheet does not close the flux, causing part of the flux to be wasted into the air.
Steel grade – ideal substrate is pure iron steel. Cast iron may generate lower lifting capacity.
Plate texture – ground elements guarantee perfect abutment, which increases field saturation. Uneven metal weaken the grip.
Operating temperature – neodymium magnets have a sensitivity to temperature. At higher temperatures they are weaker, and at low temperatures they can be stronger (up to a certain limit).

Lifting capacity testing was carried out on plates with a smooth surface of suitable thickness, under a perpendicular pulling force, whereas under shearing force the lifting capacity is smaller. In addition, even a slight gap between the magnet and the plate decreases the lifting capacity.

H&S for magnets

Physical harm

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

Warning for allergy sufferers

Some people have a sensitization to Ni, which is the common plating for NdFeB magnets. Prolonged contact may cause skin redness. It is best to use safety gloves.

Medical interference

Medical warning: Strong magnets can turn off heart devices and defibrillators. Do not approach if you have electronic implants.

Powerful field

Before starting, check safety instructions. Uncontrolled attraction can break the magnet or injure your hand. Think ahead.

Material brittleness

Protect your eyes. Magnets can explode upon uncontrolled impact, ejecting sharp fragments into the air. Wear goggles.

Permanent damage

Control the heat. Exposing the magnet to high heat will destroy its properties and pulling force.

Protect data

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

Choking Hazard

Absolutely store magnets away from children. Choking hazard is significant, and the consequences of magnets clamping inside the body are fatal.

Phone sensors

Be aware: rare earth magnets produce a field that disrupts sensitive sensors. Keep a safe distance from your phone, device, and GPS.

Fire risk

Fire warning: Rare earth powder is explosive. Do not process magnets without safety gear as this may cause fire.

Attention! Details about hazards in the article: Safety of working with magnets.

MW 70x20 / N38 - cylindrical magnet

Product card - MW 70x20 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Technical simulation of the product - data

Table 1: Static pull force (pull vs gap) - power drop MW 70x20 / N38

Table 2: Shear force (vertical surface) MW 70x20 / N38

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces MW 70x20 / N38

Table 4: Steel thickness (substrate influence) - power losses MW 70x20 / N38

Table 5: Thermal stability (material behavior) - resistance threshold MW 70x20 / N38

Table 6: Two magnets (attraction) - forces in the system MW 70x20 / N38

Table 7: Protective zones (implants) - warnings MW 70x20 / N38

Table 8: Dynamics (cracking risk) - warning MW 70x20 / N38

Table 9: Surface protection spec MW 70x20 / N38

Table 10: Construction data (Pc) MW 70x20 / N38

Table 11: Submerged application MW 70x20 / N38

1. Shear force

2. Steel saturation

3. Heat tolerance

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

Elemental analysis

Ecology and recycling (GPSR)

Force (pull)

Magnetic Induction

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Strengths as well as weaknesses of Nd2Fe14B magnets.

Pros

Limitations

Lifting parameters

Detachment force of the magnet in optimal conditions – what contributes to it?

Impact of factors on magnetic holding capacity in practice

H&S for magnets

Physical harm

Warning for allergy sufferers

Medical interference

Powerful field

Material brittleness

Permanent damage

Protect data

Choking Hazard

Phone sensors

Fire risk

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (pull vs gap) - power drop
MW 70x20 / N38

Table 2: Shear force (vertical surface)
MW 70x20 / N38

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces
MW 70x20 / N38

Table 4: Steel thickness (substrate influence) - power losses
MW 70x20 / N38

Table 5: Thermal stability (material behavior) - resistance threshold
MW 70x20 / N38

Table 6: Two magnets (attraction) - forces in the system
MW 70x20 / N38

Table 7: Protective zones (implants) - warnings
MW 70x20 / N38

Table 8: Dynamics (cracking risk) - warning
MW 70x20 / N38

Table 9: Surface protection spec
MW 70x20 / N38

Table 10: Construction data (P_c)
MW 70x20 / N38

Table 11: Submerged application
MW 70x20 / N38

Strengths as well as weaknesses of Nd₂Fe₁₄B magnets.