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MW 70x20 / 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 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 / 979.31 N

Magnetic Induction

307.57 mT / 3076 Gs

Coating

[NiCuNi] Nickel

see technical data »

239.85 ZŁ with VAT / pcs + price for transport

195.00 ZŁ net + 23% VAT / pcs

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Technical of the product - 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 / 979.31 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 modeling of the product - data

These information are the result of a physical calculation. Results rely on algorithms for the material Nd₂Fe₁₄B. Actual parameters may differ from theoretical values. Use these data as a preliminary roadmap for designers.

Table 1: Static pull force (pull vs gap) - characteristics
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	dangerous!
1 mm	3013 Gs 301.3 mT	95.80 kg / 211.21 LBS 95804.4 g / 939.8 N	dangerous!
2 mm	2946 Gs 294.6 mT	91.59 kg / 201.92 LBS 91587.7 g / 898.5 N	dangerous!
3 mm	2875 Gs 287.5 mT	87.27 kg / 192.39 LBS 87266.0 g / 856.1 N	dangerous!
5 mm	2727 Gs 272.7 mT	78.48 kg / 173.02 LBS 78482.2 g / 769.9 N	dangerous!
10 mm	2332 Gs 233.2 mT	57.38 kg / 126.50 LBS 57380.6 g / 562.9 N	dangerous!
15 mm	1942 Gs 194.2 mT	39.80 kg / 87.73 LBS 39795.7 g / 390.4 N	dangerous!
20 mm	1590 Gs 159.0 mT	26.68 kg / 58.82 LBS 26680.3 g / 261.7 N	dangerous!
30 mm	1044 Gs 104.4 mT	11.51 kg / 25.38 LBS 11511.2 g / 112.9 N	dangerous!
50 mm	466 Gs 46.6 mT	2.29 kg / 5.06 LBS 2294.1 g / 22.5 N	warning

Pulling power drops significantly with every subsequent millimeter of distance. Note that even the smallest gap (e.g., contamination, varnish, dust) significantly reduces the pull force. Magnetic products hold most effectively during direct contact; air break kills the power. Notice how flashily the load capacity plummet, when the magnet does not touch tightly to the metal substrate. When designing the assembly, avoid unnecessary gaps.

Table 2: Sliding capacity (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

The table below calculates the theoretical weight limit needed to start the sliding of the magnet vertically along a upright steel wall (considering standard friction coefficient). The holding force is relative to the gap size between the magnet and the metal.

Table 3: Vertical assembly (sliding) - 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 hanging a holder on a vertical plane (e.g., a car body), it will only hold only about 1/5 of its maximum pull force. Gravity and a weak degree of grip influence the fact that holders slip faster than they pull off. Want to create a vertical fastening? Consider that the shear force is noticeably lower than the perpendicular breakaway force. On a slippery surface, the holder will slide down under a significantly smaller load. Utilizing a rubberized coating can effectively improve the result.

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 is not enough to absorb the entire magnetic field, which weakens actual performance of the magnet. If you mount a strong magnet to a too thin substrate, the flux will pass right through and the attraction force will be weaker. To squeeze 100% of this magnet's power, you need a suitably thick backing of steel. The saturation phenomenon means that on thin elements (e.g., car bodies), the magnet shows lower pull force. We advise picking the steel cross-section from these parameters.

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

Classic neodymiums irreversibly lose power past the thermal threshold. Avoid high temperatures – high temperature can permanently demagnetize this product. With every degree above norm, the neodymium's power briefly drops. Avoid using this magnet in hot environments higher than its operating temperature limit. Ignoring the limit will cause irreversible degradation of magnetism.

*Engineering note: Temperature resistance is determined by both grade, as well as the dimension ratios. Flat magnets (pancake types) risk losing magnetic properties at lower temperatures than long magnets. Red status in the table indicates permanent field degradation for this particular item.

Table 6: Two magnets (repulsion) - field range
MW 70x20 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Lateral 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 strong neodymiums interact from a much further distance than a magnet and steel setup. The connection of two magnets generates a stronger field and a further horizon of performance. Designing a strong closure? Use a pair of magnets instead of one magnet and a striker plate. Be careful that when bringing together two magnets, the impact force is massive. The levitation is slightly lower than the connection force, but still large.
*The magnetic induction for N-N configuration reaches ~0 Gs at the midpoint between the magnets (due to field cancellation).
Important: Results show sliding force of dual same neodymium magnets (friction ~0.15 for Ni-Ni plating).

Table 7: Protective zones (implants) - precautionary measures
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
Timepiece	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

Powerful magnet radiation is a real danger to electronics and pacemakers. These magnets produce a flux that disrupts operation of sensitive medical devices. Be aware: the invisible magnetic field acts through matter and housings. Exceptional care must be taken by people with cochlear implants and insulin pumps. The risk also applies to: mechanical watches, remotes, speakers, and screens. Do not place the magnet near cards, hard drives, or precise measuring instruments.

Table 8: Collisions (cracking risk) - collision effects
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 prone to chipping – a collision with steel causes immediate chipping. Pay attention to connection velocity – a magnet released freely becomes dangerous. Kinetic force can cause material chips or dangerous crushing to skin. Be sure to control the product during bringing near metal so it doesn't hit violently against the metal. A collision at high speed means shattering of the magnet. Wear eye protection when handling with powerful specimens.

Table 9: Coating parameters (durability)
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)

Neodymium magnets are highly susceptible to corrosion without proper protection. Moisture resistance is crucial for installations in bathrooms or outdoors.

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 passing through the pole surface. Essential parameter for generator designers and motors. The P_c coefficient determines the magnet's operating point.

Table 11: Physics of underwater searching
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%

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

The magnetic field penetrates through water without any losses. Note: for permanent underwater work, we recommend magnets with an anti-corrosive (epoxy) coating.

1. Sliding resistance

*Warning: On a vertical wall, the magnet retains only ~20% of its perpendicular strength.

2. Plate thickness effect

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

3. Temperature resistance

*For N38 grade, 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) = 0.39

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.

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%

Environmental data

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

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This product is an exceptionally strong cylindrical magnet, made from modern NdFeB material, which, at dimensions of Ø70x20 mm, guarantees the highest energy density. The MW 70x20 / N38 model boasts an accuracy of ±0.1mm and professional build quality, making it an excellent solution for the most demanding engineers and designers. As a magnetic rod with significant force (approx. 99.83 kg), this product is available off-the-shelf from our warehouse in Poland, ensuring quick order fulfillment. Moreover, its triple-layer Ni-Cu-Ni coating effectively protects it against corrosion in typical operating conditions, guaranteeing an aesthetic appearance and durability for years.

It finds application in DIY projects, advanced automation, and broadly understood industry, serving as a fastening or actuating element. Thanks to the pull force of 979.31 N with a weight of only 577.27 g, this cylindrical magnet is indispensable in miniature devices and wherever low weight is crucial.

Since our magnets have a tolerance of ±0.1mm, the recommended way is to glue them into holes with a slightly larger diameter (e.g., 70.1 mm) using two-component epoxy glues. To ensure long-term durability in automation, specialized industrial adhesives are used, which are safe for nickel and fill the gap, guaranteeing high repeatability of the connection.

Magnets N38 are suitable for the majority of applications in automation and machine building, where extreme miniaturization with maximum force is not required. If you need the strongest 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.

This model is characterized by dimensions Ø70x20 mm, which, at a weight of 577.27 g, makes it an element with high magnetic energy density. The value of 979.31 N means that the magnet is capable of holding a weight many times exceeding its own mass of 577.27 g. 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. 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 through the diameter if your project requires it.

Advantages and disadvantages of neodymium magnets.

Pros

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

They virtually do not lose strength, because even after 10 years the decline in efficiency is only ~1% (based on calculations),
Neodymium magnets prove to be highly resistant to demagnetization caused by external field sources,
The use of an refined finish of noble metals (nickel, gold, silver) causes the element to look better,
Neodymium magnets generate maximum magnetic induction on a small area, which allows for strong attraction,
Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their form) at temperatures up to 230°C and above...
Possibility of custom creating and modifying to specific applications,
Versatile presence in innovative solutions – they serve a role in data components, electromotive mechanisms, medical equipment, as well as technologically advanced constructions.
Thanks to efficiency per cm³, small magnets offer high operating force, with minimal size,

Weaknesses

Cons of neodymium magnets: application proposals

At very strong impacts they can crack, therefore we recommend placing them in steel cases. A metal housing provides additional protection against damage, as well as increases the magnet's 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 suggest using waterproof magnets made of rubber, plastic or other material resistant to moisture, in case of application outdoors
Due to limitations in producing threads and complex shapes in magnets, we recommend using casing - magnetic holder.
Health risk resulting from small fragments of magnets are risky, when accidentally swallowed, which becomes key in the aspect of protecting the youngest. Furthermore, small elements of these devices are able to be problematic in diagnostics medical when they are in the body.
High unit price – neodymium magnets are more expensive than other types of magnets (e.g. ferrite), which can limit application in large quantities

Pull force analysis

Maximum lifting capacity of the magnet – what it depends on?

Information about lifting capacity is the result of a measurement for the most favorable conditions, including:

using a base made of mild steel, acting as a ideal flux conductor
possessing a thickness of minimum 10 mm to ensure full flux closure
with an polished contact surface
under conditions of no distance (metal-to-metal)
for force acting at a right angle (pull-off, not shear)
in stable room temperature

Determinants of practical lifting force of a magnet

In real-world applications, the actual lifting capacity results from a number of factors, listed from crucial:

Gap between surfaces – even a fraction of a millimeter of separation (caused e.g. by veneer or unevenness) significantly weakens the magnet efficiency, often by half at just 0.5 mm.
Angle of force application – maximum parameter is available only during perpendicular pulling. The resistance to sliding of the magnet along the plate is usually several times smaller (approx. 1/5 of the lifting capacity).
Base massiveness – too thin sheet does not accept the full field, causing part of the flux to be wasted into the air.
Plate material – mild steel attracts best. Alloy admixtures lower magnetic properties and holding force.
Plate texture – smooth surfaces guarantee perfect abutment, which improves force. Rough surfaces weaken the grip.
Heat – neodymium magnets have a sensitivity to temperature. When it is hot they are weaker, and in frost gain strength (up to a certain limit).

Lifting capacity was measured with the use of a polished steel plate of suitable thickness (min. 20 mm), under perpendicular detachment force, however under attempts to slide the magnet the load capacity is reduced by as much as fivefold. In addition, even a small distance between the magnet and the plate decreases the lifting capacity.

Safe handling of neodymium magnets

Keep away from children

Neodymium magnets are not suitable for play. Swallowing a few magnets can lead to them connecting inside the digestive tract, which poses a critical condition and requires immediate surgery.

Electronic devices

Equipment safety: Neodymium magnets can damage data carriers and sensitive devices (heart implants, medical aids, mechanical watches).

Beware of splinters

Despite the nickel coating, the material is brittle and not impact-resistant. Do not hit, as the magnet may crumble into sharp, dangerous pieces.

Skin irritation risks

It is widely known that the nickel plating (the usual finish) is a potent allergen. If your skin reacts to metals, refrain from touching magnets with bare hands and choose coated magnets.

Crushing risk

Big blocks can smash fingers in a fraction of a second. Never place your hand betwixt two strong magnets.

Health Danger

Life threat: Strong magnets can turn off pacemakers and defibrillators. Stay away if you have medical devices.

Precision electronics

Note: rare earth magnets produce a field that confuses precision electronics. Keep a safe distance from your mobile, tablet, and navigation systems.

Heat warning

Monitor thermal conditions. Heating the magnet to high heat will permanently weaken its magnetic structure and strength.

Handling rules

Handle with care. Rare earth magnets attract from a long distance and snap with massive power, often faster than you can react.

Dust is flammable

Machining of neodymium magnets poses a fire risk. Neodymium dust oxidizes rapidly with oxygen and is difficult to extinguish.

Caution! Learn more about hazards in the article: Magnet Safety Guide.

MW 70x20 / N38 - cylindrical magnet

Technical of the product - MW 70x20 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Technical modeling of the product - data

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

Table 2: Sliding capacity (vertical surface) MW 70x20 / N38

Table 3: Vertical assembly (sliding) - 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 (repulsion) - field range MW 70x20 / N38

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

Table 8: Collisions (cracking risk) - collision effects MW 70x20 / N38

Table 9: Coating parameters (durability) MW 70x20 / N38

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

Table 11: Physics of underwater searching MW 70x20 / N38

1. Sliding resistance

2. Plate thickness effect

3. Temperature resistance

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

Material specification

Environmental data

Pulling force

Field Strength

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Advantages and disadvantages of neodymium magnets.

Pros

Weaknesses

Pull force analysis

Maximum lifting capacity of the magnet – what it depends on?

Determinants of practical lifting force of a magnet

Safe handling of neodymium magnets

Keep away from children

Electronic devices

Beware of splinters

Skin irritation risks

Crushing risk

Health Danger

Precision electronics

Heat warning

Handling rules

Dust is flammable

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

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

Table 2: Sliding capacity (vertical surface)
MW 70x20 / N38

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces
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Table 4: Steel thickness (substrate influence) - power losses
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Table 5: Thermal stability (material behavior) - resistance threshold
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Table 6: Two magnets (repulsion) - field range
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Table 7: Protective zones (implants) - precautionary measures
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Table 8: Collisions (cracking risk) - collision effects
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Table 9: Coating parameters (durability)
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Table 10: Construction data (P_c)
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Table 11: Physics of underwater searching
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