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MW 20x35 / 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 010043

GTIN/EAN: 5906301810421

5.00

Diameter Ø

20 mm [±0,1 mm]

Height

35 mm [±0,1 mm]

Weight

82.47 g

Magnetization Direction

↑ axial

Load capacity

9.58 kg / 93.97 N

Magnetic Induction

595.77 mT / 5958 Gs

Coating

[NiCuNi] Nickel

view properties »

49.52 ZŁ with VAT / pcs + price for transport

40.26 ZŁ net + 23% VAT / pcs

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Technical data of the product - MW 20x35 / N38 - cylindrical magnet

Specification / characteristics - MW 20x35 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010043
GTIN/EAN	5906301810421
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	20 mm [±0,1 mm]
Height	35 mm [±0,1 mm]
Weight	82.47 g
Magnetization Direction	↑ axial
Load capacity ~ ?	9.58 kg / 93.97 N
Magnetic Induction ~ ?	595.77 mT / 5958 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 20x35 / 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

Physical modeling of the product - data

Presented data represent the outcome of a mathematical analysis. Results rely on algorithms for the material Nd₂Fe₁₄B. Operational parameters may differ from theoretical values. Treat these calculations as a supplementary guide when designing systems.

Table 1: Static force (pull vs gap) - characteristics
MW 20x35 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	5955 Gs 595.5 mT	9.58 kg / 21.12 lbs 9580.0 g / 94.0 N	strong
1 mm	5357 Gs 535.7 mT	7.75 kg / 17.09 lbs 7751.3 g / 76.0 N	strong
2 mm	4769 Gs 476.9 mT	6.14 kg / 13.55 lbs 6144.2 g / 60.3 N	strong
3 mm	4214 Gs 421.4 mT	4.80 kg / 10.58 lbs 4797.3 g / 47.1 N	strong
5 mm	3242 Gs 324.2 mT	2.84 kg / 6.26 lbs 2839.3 g / 27.9 N	strong
10 mm	1668 Gs 166.8 mT	0.75 kg / 1.66 lbs 751.8 g / 7.4 N	safe
15 mm	921 Gs 92.1 mT	0.23 kg / 0.51 lbs 229.1 g / 2.2 N	safe
20 mm	555 Gs 55.5 mT	0.08 kg / 0.18 lbs 83.1 g / 0.8 N	safe
30 mm	246 Gs 24.6 mT	0.02 kg / 0.04 lbs 16.4 g / 0.2 N	safe
50 mm	78 Gs 7.8 mT	0.00 kg / 0.00 lbs 1.6 g / 0.0 N	safe

Grip strength decreases significantly per each millimeter of distance. Keep in mind that even a very thin break (e.g., contamination, paint, dust) noticeably weakens the grip. Magnetic products operate optimally during direct contact; gap drastically cuts the force. Notice how quickly the load capacity plummet, when the product does not touch flatly to the metal substrate. When planning the arrangement, eliminate redundant distances.

Table 2: Sliding hold (wall)
MW 20x35 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	1.92 kg / 4.22 lbs 1916.0 g / 18.8 N
1 mm	Stal (~0.2)	1.55 kg / 3.42 lbs 1550.0 g / 15.2 N
2 mm	Stal (~0.2)	1.23 kg / 2.71 lbs 1228.0 g / 12.0 N
3 mm	Stal (~0.2)	0.96 kg / 2.12 lbs 960.0 g / 9.4 N
5 mm	Stal (~0.2)	0.57 kg / 1.25 lbs 568.0 g / 5.6 N
10 mm	Stal (~0.2)	0.15 kg / 0.33 lbs 150.0 g / 1.5 N
15 mm	Stal (~0.2)	0.05 kg / 0.10 lbs 46.0 g / 0.5 N
20 mm	Stal (~0.2)	0.02 kg / 0.04 lbs 16.0 g / 0.2 N
30 mm	Stal (~0.2)	0.00 kg / 0.01 lbs 4.0 g / 0.0 N
50 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 0.0 g / 0.0 N

The table below indicates the estimated holding capacity needed to cause the shifting of the magnet vertically along a vertical steel plate (considering standard friction coefficient). This parameter is relative to the distance between the magnet and the metal.

Table 3: Wall mounting (sliding) - behavior on slippery surfaces
MW 20x35 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	2.87 kg / 6.34 lbs 2874.0 g / 28.2 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	1.92 kg / 4.22 lbs 1916.0 g / 18.8 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.96 kg / 2.11 lbs 958.0 g / 9.4 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	4.79 kg / 10.56 lbs 4790.0 g / 47.0 N

When mounting a magnet on a upright plane (e.g., a car body), it you can count on just approx. 20%-30% of its maximum pull force. Gravitational force as well as a weak degree of grip cause that magnets slip faster than they pop off the substrate. Designing a hanger? Consider that the shear force is significantly lower than the perpendicular breakaway force. On a smooth steel, the magnet will give way down under a much lighter load. Utilizing a rubberized coating can effectively improve the result.

Table 4: Material efficiency (saturation) - power losses
MW 20x35 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.96 kg / 2.11 lbs 958.0 g / 9.4 N
1 mm	25%	2.40 kg / 5.28 lbs 2395.0 g / 23.5 N
2 mm	50%	4.79 kg / 10.56 lbs 4790.0 g / 47.0 N
3 mm	75%	7.19 kg / 15.84 lbs 7185.0 g / 70.5 N
5 mm	100%	9.58 kg / 21.12 lbs 9580.0 g / 94.0 N
10 mm	100%	9.58 kg / 21.12 lbs 9580.0 g / 94.0 N
11 mm	100%	9.58 kg / 21.12 lbs 9580.0 g / 94.0 N
12 mm	100%	9.58 kg / 21.12 lbs 9580.0 g / 94.0 N

A thin metal plate cannot focus the entire magnetic field, which wastes potential of the magnet. Should you install a neodymium to a weak sheet, the magnetism will pass right through and the holding will be smaller. To achieve the maximum of this neodymium's power, you need a suitably thick backing of steel. The saturation effect means that on thin elements (e.g., car bodies), the product works worse. We suggest choosing the steel dimension based on the following data.

Table 5: Thermal resistance (material behavior) - thermal limit
MW 20x35 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	9.58 kg / 21.12 lbs 9580.0 g / 94.0 N	OK
40 °C	-2.2%	9.37 kg / 20.66 lbs 9369.2 g / 91.9 N	OK
60 °C	-4.4%	9.16 kg / 20.19 lbs 9158.5 g / 89.8 N	OK
80 °C	-6.6%	8.95 kg / 19.73 lbs 8947.7 g / 87.8 N
100 °C	-28.8%	6.82 kg / 15.04 lbs 6821.0 g / 66.9 N

Classic neodymiums change their properties strength past the thermal threshold. Watch out for overheating – excessive heat can permanently destroy this magnet. With increasing heat, the magnet's capacity momentarily drops. Refrain from using this product in hot environments higher than its working range. Exceeding the critical threshold will result in irreversible degradation of magnetism.

*Technical advisory: Heat tolerance depends not only on the material grade, and the Permeance Coefficient Pc. Flat magnets (pancake types) are more susceptible to demagnetization at lower temperatures than taller cylinders. Warning indicator in the table points to permanent field degradation for this specific geometry.

Table 6: Magnet-Magnet interaction (repulsion) - field collision
MW 20x35 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Sliding Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	68.69 kg / 151.44 lbs 6 132 Gs	10.30 kg / 22.72 lbs 10304 g / 101.1 N	N/A
1 mm	62.01 kg / 136.70 lbs 11 316 Gs	9.30 kg / 20.50 lbs 9301 g / 91.2 N	55.81 kg / 123.03 lbs ~0 Gs
2 mm	55.58 kg / 122.53 lbs 10 714 Gs	8.34 kg / 18.38 lbs 8337 g / 81.8 N	50.02 kg / 110.28 lbs ~0 Gs
3 mm	49.59 kg / 109.32 lbs 10 120 Gs	7.44 kg / 16.40 lbs 7438 g / 73.0 N	44.63 kg / 98.39 lbs ~0 Gs
5 mm	38.99 kg / 85.96 lbs 8 974 Gs	5.85 kg / 12.89 lbs 5849 g / 57.4 N	35.09 kg / 77.37 lbs ~0 Gs
10 mm	20.36 kg / 44.88 lbs 6 484 Gs	3.05 kg / 6.73 lbs 3054 g / 30.0 N	18.32 kg / 40.40 lbs ~0 Gs
20 mm	5.39 kg / 11.88 lbs 3 337 Gs	0.81 kg / 1.78 lbs 809 g / 7.9 N	4.85 kg / 10.70 lbs ~0 Gs
50 mm	0.25 kg / 0.55 lbs 718 Gs	0.04 kg / 0.08 lbs 37 g / 0.4 N	0.22 kg / 0.50 lbs ~0 Gs
60 mm	0.12 kg / 0.26 lbs 492 Gs	0.02 kg / 0.04 lbs 18 g / 0.2 N	0.11 kg / 0.23 lbs ~0 Gs
70 mm	0.06 kg / 0.13 lbs 352 Gs	0.01 kg / 0.02 lbs 9 g / 0.1 N	0.05 kg / 0.12 lbs ~0 Gs
80 mm	0.03 kg / 0.07 lbs 261 Gs	0.00 kg / 0.01 lbs 5 g / 0.0 N	0.03 kg / 0.07 lbs ~0 Gs
90 mm	0.02 kg / 0.04 lbs 200 Gs	0.00 kg / 0.01 lbs 3 g / 0.0 N	0.02 kg / 0.04 lbs ~0 Gs
100 mm	0.01 kg / 0.03 lbs 156 Gs	0.00 kg / 0.00 lbs 2 g / 0.0 N	0.01 kg / 0.02 lbs ~0 Gs

Two magnetic products attract each other from a wider radius than a neodymium and metal combination. The setup of two magnets generates a stronger field and a wider radius of performance. Designing a powerful holder? Apply two magnets instead of a neodymium and a striker plate. Be careful that when bringing together two magnets, the impact force is extreme. The levitation is slightly lower than the attraction, but still large.
*Field value for N-N configuration reaches ~0 Gs at the geometric center of the gap (due to field cancellation).
Important: Calculations refer to sliding force of dual identical neodymium magnets (friction ~0.15 for Ni-Ni coating).

Table 7: Protective zones (implants) - warnings
MW 20x35 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	15.0 cm
Hearing aid	10 Gs (1.0 mT)	11.5 cm
Mechanical watch	20 Gs (2.0 mT)	9.0 cm
Phone / Smartphone	40 Gs (4.0 mT)	7.0 cm
Remote	50 Gs (5.0 mT)	6.5 cm
Payment card	400 Gs (40.0 mT)	2.5 cm
HDD hard drive	600 Gs (60.0 mT)	2.0 cm

Extremely neodym field is a real danger to electronic devices and medical implants. These magnets produce a field that prevents correct functioning of digital equipment. Be aware: the unseen radiation penetrates the body and glass. Special caution must be exercised by people with cochlear implants and insulin pumps. The risk also applies to: automatic timepieces, remotes, membranes, and displays. Do not bring the product near payment cards, hard drives, or precise measuring instruments.

Table 8: Impact energy (cracking risk) - warning
MW 20x35 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	11.39 km/h (3.16 m/s)	0.41 J
30 mm	18.85 km/h (5.24 m/s)	1.13 J
50 mm	24.31 km/h (6.75 m/s)	1.88 J
100 mm	34.37 km/h (9.55 m/s)	3.76 J

Magnetic elements are prone to chipping – a violent impact against metal can result in shattering. Pay attention to connection velocity – a neodymium left loose turns into a projectile. Impact energy can destroy the magnet or dangerous crushing to fingers. Be sure to control the product during installation so it doesn't hit violently against the steel surface. A contact at a velocity of dozens of km/h means shattering of the magnet. Wear eye protection when working with powerful specimens.

Table 9: Surface protection spec
MW 20x35 / 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. Note the thickness of the protective layer.

Table 10: Construction data (P_c)
MW 20x35 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	20 408 Mx	204.1 µWb
P_c Coefficient	1.16	High (Stable)

Total magnetic flux passing through the pole surface. Key data when building generators and motors. P_c value determines the working geometry.

Table 11: Submerged application
MW 20x35 / N38

Environment	Effective steel pull	Effect
Air (land)	9.58 kg	Standard
Water (riverbed)	10.97 kg (+1.39 kg buoyancy gain)	+14.5%

Rust risk: 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. Note: for permanent underwater work, we recommend magnets with an anti-corrosive (epoxy) coating.

1. Wall mount (shear)

*Caution: On a vertical wall, the magnet holds just approx. 20-30% of its max power.

2. Plate thickness effect

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

3. Heat tolerance

*For standard magnets, 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) = 1.16

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%

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: 010043-2026

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This product is a very strong cylindrical magnet, manufactured from durable NdFeB material, which, at dimensions of Ø20x35 mm, guarantees optimal power. This specific item boasts an accuracy of ±0.1mm and professional build quality, making it an excellent solution for professional engineers and designers. As a magnetic rod with significant force (approx. 9.58 kg), this product is in stock from our warehouse in Poland, ensuring quick order fulfillment. Furthermore, its triple-layer Ni-Cu-Ni coating effectively protects it against corrosion in standard operating conditions, ensuring an aesthetic appearance and durability for years.

It finds application in DIY projects, advanced robotics, and broadly understood industry, serving as a fastening or actuating element. Thanks to the high power of 93.97 N with a weight of only 82.47 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 precision component. To ensure stability in automation, anaerobic resins are used, which are safe for nickel and fill the gap, guaranteeing durability of the connection.

Grade N38 is the most popular standard for professional neodymium magnets, offering a great economic balance and operational stability. If you need even stronger magnets in the same volume (Ø20x35), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard in continuous sale in our store.

This model is characterized by dimensions Ø20x35 mm, which, at a weight of 82.47 g, makes it an element with high magnetic energy density. The key parameter here is the lifting capacity amounting to approximately 9.58 kg (force ~93.97 N), which, with such compact dimensions, proves the high power of the NdFeB material. The product has a [NiCuNi] coating, which secures it against oxidation, giving it an aesthetic, silvery shine.

This cylinder is magnetized axially (along the height of 35 mm), which means that the N and S poles are located on the flat, circular surfaces. Such an arrangement is most desirable when connecting magnets in stacks (e.g., in filters) or when mounting in sockets at the bottom of a hole. On request, we can also produce versions magnetized diametrically if your project requires it.

Strengths and weaknesses of rare earth magnets.

Benefits

Besides their exceptional pulling force, neodymium magnets offer the following advantages:

They virtually do not lose power, because even after ten years the performance loss is only ~1% (in laboratory conditions),
They retain their magnetic properties even under close interference source,
The use of an metallic layer of noble metals (nickel, gold, silver) causes the element to have aesthetics,
Neodymium magnets achieve maximum magnetic induction on a small area, which increases force concentration,
Thanks to resistance to high temperature, they can operate (depending on the form) even at temperatures up to 230°C and higher...
Considering the possibility of precise molding and customization to unique projects, magnetic components can be produced in a broad palette of forms and dimensions, which expands the range of possible applications,
Universal use in future technologies – they are used in HDD drives, electric drive systems, precision medical tools, as well as other advanced devices.
Thanks to their power density, small magnets offer high operating force, in miniature format,

Weaknesses

Characteristics of disadvantages of neodymium magnets and proposals for their use:

To avoid cracks under impact, we recommend using special steel housings. Such a solution protects the magnet and simultaneously increases its durability.
We warn that neodymium magnets can reduce their power at high temperatures. To prevent this, we advise our specialized [AH] magnets, which work effectively even at 230°C.
They oxidize in a humid environment. For use outdoors we recommend using waterproof magnets e.g. in rubber, plastic
We recommend a housing - magnetic mount, due to difficulties in realizing nuts inside the magnet and complex shapes.
Health risk to health – tiny shards of magnets can be dangerous, if swallowed, which gains importance in the context of child health protection. Additionally, small components of these products are able to be problematic in diagnostics medical after entering the body.
With budget limitations the cost of neodymium magnets can be a barrier,

Lifting parameters

Maximum lifting force for a neodymium magnet – what it depends on?

Magnet power was determined for optimal configuration, including:

on a plate made of mild steel, perfectly concentrating the magnetic field
with a thickness of at least 10 mm
with an polished contact surface
without any clearance between the magnet and steel
during pulling in a direction perpendicular to the plane
at room temperature

Key elements affecting lifting force

Bear in mind that the working load may be lower subject to elements below, in order of importance:

Distance (betwixt the magnet and the metal), as even a microscopic clearance (e.g. 0.5 mm) leads to a reduction in lifting capacity by up to 50% (this also applies to paint, corrosion or debris).
Load vector – maximum parameter is available only during perpendicular pulling. The resistance to sliding of the magnet along the surface is typically several times lower (approx. 1/5 of the lifting capacity).
Plate thickness – insufficiently thick sheet causes magnetic saturation, causing part of the flux to be escaped into the air.
Material composition – not every steel attracts identically. High carbon content worsen the interaction with the magnet.
Surface finish – full contact is obtained only on smooth steel. Rough texture create air cushions, weakening the magnet.
Temperature influence – hot environment weakens pulling force. Exceeding the limit temperature can permanently damage the magnet.

Lifting capacity was assessed by applying a steel plate with a smooth surface of suitable thickness (min. 20 mm), under perpendicular detachment force, whereas under shearing force the load capacity is reduced by as much as 75%. Moreover, even a slight gap between the magnet’s surface and the plate decreases the lifting capacity.

Safety rules for work with neodymium magnets

Cards and drives

Powerful magnetic fields can corrupt files on payment cards, HDDs, and storage devices. Stay away of min. 10 cm.

Threat to navigation

GPS units and smartphones are highly susceptible to magnetic fields. Direct contact with a powerful NdFeB magnet can permanently damage the internal compass in your phone.

Shattering risk

Beware of splinters. Magnets can explode upon uncontrolled impact, launching sharp fragments into the air. Wear goggles.

Safe operation

Handle magnets with awareness. Their powerful strength can surprise even experienced users. Plan your moves and respect their power.

Bodily injuries

Risk of injury: The attraction force is so great that it can result in hematomas, pinching, and even bone fractures. Use thick gloves.

Medical interference

For implant holders: Strong magnetic fields disrupt medical devices. Maintain at least 30 cm distance or request help to handle the magnets.

Nickel allergy

A percentage of the population suffer from a contact allergy to nickel, which is the typical protective layer for NdFeB magnets. Prolonged contact might lead to an allergic reaction. It is best to use protective gloves.

Power loss in heat

Monitor thermal conditions. Heating the magnet above 80 degrees Celsius will destroy its magnetic structure and strength.

Fire risk

Powder produced during grinding of magnets is combustible. Avoid drilling into magnets unless you are an expert.

Keep away from children

Adult use only. Tiny parts can be swallowed, leading to serious injuries. Store away from children and animals.

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

MW 20x35 / N38 - cylindrical magnet

Technical data of the product - MW 20x35 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical modeling of the product - data

Table 1: Static force (pull vs gap) - characteristics MW 20x35 / N38

Table 2: Sliding hold (wall) MW 20x35 / N38

Table 3: Wall mounting (sliding) - behavior on slippery surfaces MW 20x35 / N38

Table 4: Material efficiency (saturation) - power losses MW 20x35 / N38

Table 5: Thermal resistance (material behavior) - thermal limit MW 20x35 / N38

Table 6: Magnet-Magnet interaction (repulsion) - field collision MW 20x35 / N38

Table 7: Protective zones (implants) - warnings MW 20x35 / N38

Table 8: Impact energy (cracking risk) - warning MW 20x35 / N38

Table 9: Surface protection spec MW 20x35 / N38

Table 10: Construction data (Pc) MW 20x35 / N38

Table 11: Submerged application MW 20x35 / N38

1. Wall mount (shear)

2. Plate thickness effect

3. Heat tolerance

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

Elemental analysis

Environmental data

Force (pull)

Field Strength

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SM 32x275 [2xM8] / N42 - magnetic separator

MP 36.2x11/6x7.5 / N38 - ring magnet

UMS 20x8.6x4.5x7 / N38 - conical magnetic holder

Strengths and weaknesses of rare earth magnets.

Benefits

Weaknesses

Lifting parameters

Maximum lifting force for a neodymium magnet – what it depends on?

Key elements affecting lifting force

Safety rules for work with neodymium magnets

Cards and drives

Threat to navigation

Shattering risk

Safe operation

Bodily injuries

Medical interference

Nickel allergy

Power loss in heat

Fire risk

Keep away from children

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (pull vs gap) - characteristics
MW 20x35 / N38

Table 2: Sliding hold (wall)
MW 20x35 / N38

Table 3: Wall mounting (sliding) - behavior on slippery surfaces
MW 20x35 / N38

Table 4: Material efficiency (saturation) - power losses
MW 20x35 / N38

Table 5: Thermal resistance (material behavior) - thermal limit
MW 20x35 / N38

Table 6: Magnet-Magnet interaction (repulsion) - field collision
MW 20x35 / N38

Table 7: Protective zones (implants) - warnings
MW 20x35 / N38

Table 8: Impact energy (cracking risk) - warning
MW 20x35 / N38

Table 9: Surface protection spec
MW 20x35 / N38

Table 10: Construction data (P_c)
MW 20x35 / N38

Table 11: Submerged application
MW 20x35 / N38