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MW 40x15 / 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 010067

GTIN/EAN: 5906301810667

Diameter Ø

40 mm [±0,1 mm]

Height

15 mm [±0,1 mm]

Weight

141.37 g

Magnetization Direction

↑ axial

Load capacity

42.64 kg / 418.33 N

Magnetic Induction

371.91 mT / 3719 Gs

Coating

[NiCuNi] Nickel

technical details »

65.93 ZŁ with VAT / pcs + price for transport

53.60 ZŁ net + 23% VAT / pcs

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Pick up the phone and ask +48 888 99 98 98 or contact us using our online form through our site.
Parameters as well as structure of neodymium magnets can be checked with our magnetic mass calculator.

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Detailed specification - MW 40x15 / N38 - cylindrical magnet

Specification / characteristics - MW 40x15 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010067
GTIN/EAN	5906301810667
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	40 mm [±0,1 mm]
Height	15 mm [±0,1 mm]
Weight	141.37 g
Magnetization Direction	↑ axial
Load capacity ~ ?	42.64 kg / 418.33 N
Magnetic Induction ~ ?	371.91 mT / 3719 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 40x15 / 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 assembly - report

Presented information constitute the result of a mathematical simulation. Values are based on algorithms for the class Nd₂Fe₁₄B. Operational parameters may differ from theoretical values. Please consider these data as a preliminary roadmap during assembly planning.

Table 1: Static pull force (force vs distance) - interaction chart
MW 40x15 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	3718 Gs 371.8 mT	42.64 kg / 94.00 LBS 42640.0 g / 418.3 N	crushing
1 mm	3563 Gs 356.3 mT	39.16 kg / 86.33 LBS 39159.5 g / 384.2 N	crushing
2 mm	3398 Gs 339.8 mT	35.62 kg / 78.52 LBS 35617.1 g / 349.4 N	crushing
3 mm	3228 Gs 322.8 mT	32.13 kg / 70.84 LBS 32130.5 g / 315.2 N	crushing
5 mm	2880 Gs 288.0 mT	25.58 kg / 56.40 LBS 25584.2 g / 251.0 N	crushing
10 mm	2069 Gs 206.9 mT	13.20 kg / 29.09 LBS 13196.7 g / 129.5 N	crushing
15 mm	1439 Gs 143.9 mT	6.38 kg / 14.07 LBS 6383.1 g / 62.6 N	warning
20 mm	999 Gs 99.9 mT	3.08 kg / 6.79 LBS 3077.9 g / 30.2 N	warning
30 mm	507 Gs 50.7 mT	0.79 kg / 1.75 LBS 792.4 g / 7.8 N	safe
50 mm	169 Gs 16.9 mT	0.09 kg / 0.19 LBS 88.4 g / 0.9 N	safe

Magnetic force weakens drastically per each millimeter of spacing. Remember that every additional insulation layer (e.g., contamination, paint, rust) strongly weakens the grip. Magnets operate optimally at the point of direct contact; air break weakens the force. See how quickly the parameters plummet, when the product does not touch flatly to the metal substrate. When planning the arrangement, avoid redundant distances.

Table 2: Slippage capacity (vertical surface)
MW 40x15 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	8.53 kg / 18.80 LBS 8528.0 g / 83.7 N
1 mm	Stal (~0.2)	7.83 kg / 17.27 LBS 7832.0 g / 76.8 N
2 mm	Stal (~0.2)	7.12 kg / 15.71 LBS 7124.0 g / 69.9 N
3 mm	Stal (~0.2)	6.43 kg / 14.17 LBS 6426.0 g / 63.0 N
5 mm	Stal (~0.2)	5.12 kg / 11.28 LBS 5116.0 g / 50.2 N
10 mm	Stal (~0.2)	2.64 kg / 5.82 LBS 2640.0 g / 25.9 N
15 mm	Stal (~0.2)	1.28 kg / 2.81 LBS 1276.0 g / 12.5 N
20 mm	Stal (~0.2)	0.62 kg / 1.36 LBS 616.0 g / 6.0 N
30 mm	Stal (~0.2)	0.16 kg / 0.35 LBS 158.0 g / 1.5 N
50 mm	Stal (~0.2)	0.02 kg / 0.04 LBS 18.0 g / 0.2 N

This section shows the estimated force needed to cause the sliding of the magnet vertically against a upright steel plate (considering typical friction). This parameter is a function of the air gap between the magnet and the surface.

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces
MW 40x15 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	12.79 kg / 28.20 LBS 12792.0 g / 125.5 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	8.53 kg / 18.80 LBS 8528.0 g / 83.7 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	4.26 kg / 9.40 LBS 4264.0 g / 41.8 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	21.32 kg / 47.00 LBS 21320.0 g / 209.1 N

When hanging a holder on a upright surface (e.g., a car body), it will maintain just about 1/5 of its maximum pull force. Gravity and a low friction coefficient cause that holders move down faster than they detach. Want to create a hanger? Note that the shear force is noticeably lower than the perpendicular breakaway force. On a smooth steel, the magnet will slide down under a noticeably lighter weight. Using a rubber coating can significantly increase the grip.

Table 4: Material efficiency (saturation) - sheet metal selection
MW 40x15 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	5%	2.13 kg / 4.70 LBS 2132.0 g / 20.9 N
1 mm	13%	5.33 kg / 11.75 LBS 5330.0 g / 52.3 N
2 mm	25%	10.66 kg / 23.50 LBS 10660.0 g / 104.6 N
3 mm	38%	15.99 kg / 35.25 LBS 15990.0 g / 156.9 N
5 mm	63%	26.65 kg / 58.75 LBS 26650.0 g / 261.4 N
10 mm	100%	42.64 kg / 94.00 LBS 42640.0 g / 418.3 N
11 mm	100%	42.64 kg / 94.00 LBS 42640.0 g / 418.3 N
12 mm	100%	42.64 kg / 94.00 LBS 42640.0 g / 418.3 N

A thin sheet cannot conduct the full magnetic flux, which weakens actual performance of the magnet. If you attach a powerful product to a too thin substrate, the field will penetrate right through and the pull force will drop sharply. To utilize full efficiency of this magnet's power, you require a sufficiently solid piece of metal. The saturation phenomenon causes that on delicate walls (e.g., thin profiles), the magnet works worse. We advise picking the steel thickness according to the table below.

Table 5: Thermal stability (stability) - power drop
MW 40x15 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	42.64 kg / 94.00 LBS 42640.0 g / 418.3 N	OK
40 °C	-2.2%	41.70 kg / 91.94 LBS 41701.9 g / 409.1 N	OK
60 °C	-4.4%	40.76 kg / 89.87 LBS 40763.8 g / 399.9 N
80 °C	-6.6%	39.83 kg / 87.80 LBS 39825.8 g / 390.7 N
100 °C	-28.8%	30.36 kg / 66.93 LBS 30359.7 g / 297.8 N

Ordinary NdFeB products lose parameters above the temperature limit. Protect against heat – heat can permanently destroy this product. With increasing heat, the magnet's capacity briefly lowers. Avoid using this product in hot environments exceeding its operating temperature limit. Ignoring the limit will cause destruction of magnetism.

*Engineering note: Temperature resistance depends not only on the material grade, and the Permeance Coefficient Pc. Low-profile magnets (pancake types) may lose charge permanently sooner than long magnets. Red status in the table signals permanent field degradation for this particular item.

Table 6: Magnet-Magnet interaction (attraction) - field collision
MW 40x15 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Sliding Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	107.12 kg / 236.16 LBS 5 156 Gs	16.07 kg / 35.42 LBS 16068 g / 157.6 N	N/A
1 mm	102.82 kg / 226.67 LBS 7 286 Gs	15.42 kg / 34.00 LBS 15422 g / 151.3 N	92.53 kg / 204.00 LBS ~0 Gs
2 mm	98.38 kg / 216.89 LBS 7 127 Gs	14.76 kg / 32.53 LBS 14757 g / 144.8 N	88.54 kg / 195.20 LBS ~0 Gs
3 mm	93.92 kg / 207.06 LBS 6 964 Gs	14.09 kg / 31.06 LBS 14088 g / 138.2 N	84.53 kg / 186.36 LBS ~0 Gs
5 mm	85.07 kg / 187.55 LBS 6 627 Gs	12.76 kg / 28.13 LBS 12760 g / 125.2 N	76.56 kg / 168.79 LBS ~0 Gs
10 mm	64.27 kg / 141.70 LBS 5 761 Gs	9.64 kg / 21.25 LBS 9641 g / 94.6 N	57.85 kg / 127.53 LBS ~0 Gs
20 mm	33.15 kg / 73.09 LBS 4 137 Gs	4.97 kg / 10.96 LBS 4973 g / 48.8 N	29.84 kg / 65.78 LBS ~0 Gs
50 mm	3.84 kg / 8.47 LBS 1 408 Gs	0.58 kg / 1.27 LBS 576 g / 5.7 N	3.46 kg / 7.62 LBS ~0 Gs
60 mm	1.99 kg / 4.39 LBS 1 014 Gs	0.30 kg / 0.66 LBS 299 g / 2.9 N	1.79 kg / 3.95 LBS ~0 Gs
70 mm	1.08 kg / 2.38 LBS 747 Gs	0.16 kg / 0.36 LBS 162 g / 1.6 N	0.97 kg / 2.14 LBS ~0 Gs
80 mm	0.61 kg / 1.35 LBS 563 Gs	0.09 kg / 0.20 LBS 92 g / 0.9 N	0.55 kg / 1.22 LBS ~0 Gs
90 mm	0.36 kg / 0.80 LBS 432 Gs	0.05 kg / 0.12 LBS 54 g / 0.5 N	0.33 kg / 0.72 LBS ~0 Gs
100 mm	0.22 kg / 0.49 LBS 339 Gs	0.03 kg / 0.07 LBS 33 g / 0.3 N	0.20 kg / 0.44 LBS ~0 Gs

Two magnetic products interact from a significantly greater distance than a magnet and steel combination. The setup of magnet-to-magnet produces a massive flux and a wider radius of operation. Planning to create 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 huge. The levitation is marginally weaker than the attraction, but still large.
*Field value in repulsion mode is approximately ~0 Gs in the exact middle of the gap (due to field cancellation).
Attention: Results refer to sliding force of a pair of same neodymium magnets (friction coefficient ~0.15 for Ni-Ni plating).

Table 7: Hazards (implants) - precautionary measures
MW 40x15 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	19.0 cm
Hearing aid	10 Gs (1.0 mT)	15.0 cm
Timepiece	20 Gs (2.0 mT)	11.5 cm
Phone / Smartphone	40 Gs (4.0 mT)	9.0 cm
Car key	50 Gs (5.0 mT)	8.5 cm
Payment card	400 Gs (40.0 mT)	3.5 cm
HDD hard drive	600 Gs (60.0 mT)	3.0 cm

A strong magnetic field is a real danger to electronics and medical implants. These neodymiums generate a flux that destroys function of sensitive medical devices. Notice: the unseen radiation penetrates the body and housings. Increased vigilance must be exercised by people with hearing aids and insulin pumps. Influence will be felt by: automatic timepieces, car keys, membranes, and displays. Avoid contact with magnetic cards, HDD media, or sensitive navigation tools.

Table 8: Collisions (cracking risk) - collision effects
MW 40x15 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	20.63 km/h (5.73 m/s)	2.32 J
30 mm	30.69 km/h (8.52 m/s)	5.14 J
50 mm	39.22 km/h (10.89 m/s)	8.39 J
100 mm	55.39 km/h (15.39 m/s)	16.73 J

NdFeB products are prone to chipping – a collision with steel risks their cracking. Pay attention to connection velocity – a neodymium left loose speeds with massive force. Striking energy can cause material chips or painful pinches to fingers. Always hold the magnet during mounting so it doesn't slam with momentum against the metal. A collision at high speed ends with a crack of the neodymium. Wear safety glasses when working with powerful specimens.

Table 9: Coating parameters (durability)
MW 40x15 / 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 (P_c)
MW 40x15 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	48 650 Mx	486.5 µWb
P_c Coefficient	0.48	Low (Flat)

Total magnetic flux passing through the pole surface. Key data when building generators and motors. P_c value defines the magnet's operating point.

Table 11: Submerged application
MW 40x15 / N38

Environment	Effective steel pull	Effect
Air (land)	42.64 kg	Standard
Water (riverbed)	48.82 kg (+6.18 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. Note: for permanent underwater work, we recommend magnets with an anti-corrosive (epoxy) coating.

1. Shear force

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

2. Plate thickness effect

*Thin metal sheet (e.g. 0.5mm PC case) severely weakens the holding force.

3. Power loss vs temp

*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) = 0.48

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

Chemical composition

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

Ecology and recycling (GPSR)

recyclability (EoL)	100%
recycled raw materials	~10% (pre-cons)
carbon footprint	low / zredukowany
waste code (EWC)	16 02 16

Safety card (GPSR)

responsible entity

Dhit sp. z o.o.

ul. Kościuszki 6A, 05-850 Ożarów Mazowiecki

tel: +48 22 499 98 98 | e-mail: bok@dhit.pl

batch number/type

id: 010067-2026

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MW 14.9x10 / N38 - cylindrical magnet

8.24 ZŁ brutto / pcs

The offered product is a very strong rod magnet, composed of advanced NdFeB material, which, with dimensions of Ø40x15 mm, guarantees maximum efficiency. The MW 40x15 / N38 model boasts high dimensional repeatability and professional build quality, making it a perfect solution for professional engineers and designers. As a cylindrical magnet with impressive force (approx. 42.64 kg), this product is available off-the-shelf from our European logistics center, ensuring lightning-fast order fulfillment. Additionally, its triple-layer Ni-Cu-Ni coating shields it against corrosion in typical operating conditions, guaranteeing an aesthetic appearance and durability for years.

This model is created for building electric motors, advanced sensors, and efficient magnetic separators, where maximum induction on a small surface counts. Thanks to the pull force of 418.33 N with a weight of only 141.37 g, this cylindrical magnet is indispensable in electronics and wherever every gram matters.

Since our magnets have a very precise dimensions, the recommended way is to glue them into holes with a slightly larger diameter (e.g., 40.1 mm) using epoxy glues. To ensure long-term durability in automation, specialized industrial adhesives are used, which do not react with the nickel coating and fill the gap, guaranteeing high repeatability of the connection.

Grade N38 is the most frequently chosen standard for professional neodymium magnets, offering an optimal price-to-power ratio and high resistance to demagnetization. If you need even stronger magnets in the same volume (Ø40x15), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard in continuous sale in our warehouse.

The presented product is a neodymium magnet with precisely defined parameters: diameter 40 mm and height 15 mm. The value of 418.33 N means that the magnet is capable of holding a weight many times exceeding its own mass of 141.37 g. The product has a [NiCuNi] coating, which secures it against external factors, giving it an aesthetic, silvery shine.

Standardly, the magnetic axis runs through the center of the cylinder, causing the greatest attraction force to occur on the bases with a diameter of 40 mm. 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 diametrically if your project requires it.

Pros and cons of Nd₂Fe₁₄B magnets.

Pros

Apart from their superior holding force, neodymium magnets have these key benefits:

They do not lose power, even after nearly ten years – the reduction in strength is only ~1% (based on measurements),
They maintain their magnetic properties even under close interference source,
The use of an metallic coating of noble metals (nickel, gold, silver) causes the element to have aesthetics,
They feature high magnetic induction at the operating surface, which improves attraction properties,
Thanks to resistance to high temperature, they are able to function (depending on the shape) even at temperatures up to 230°C and higher...
Thanks to modularity in shaping and the capacity to customize to unusual requirements,
Key role in electronics industry – they serve a role in data components, motor assemblies, medical equipment, also complex engineering applications.
Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in tiny dimensions, which makes them useful in miniature devices

Weaknesses

Disadvantages of neodymium magnets:

They are prone to damage upon too strong impacts. To avoid cracks, it is worth protecting magnets in a protective case. Such protection not only protects the magnet but also increases its resistance to damage
Neodymium magnets lose force when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of strength (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
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, in case of application outdoors
We suggest cover - magnetic mount, due to difficulties in creating threads inside the magnet and complex forms.
Potential hazard related to microscopic parts of magnets pose a threat, in case of ingestion, which is particularly important in the context of child safety. Furthermore, small components of these products can be problematic in diagnostics medical after entering the body.
Due to complex production process, their price is relatively high,

Lifting parameters

Best holding force of the magnet in ideal parameters – what contributes to it?

Breakaway force is the result of a measurement for optimal configuration, assuming:

with the contact of a sheet made of low-carbon steel, guaranteeing full magnetic saturation
with a thickness minimum 10 mm
with a plane perfectly flat
with total lack of distance (no paint)
under axial force direction (90-degree angle)
at room temperature

Practical aspects of lifting capacity – factors

Effective lifting capacity is influenced by specific conditions, mainly (from most important):

Clearance – existence of any layer (paint, tape, air) acts as an insulator, which lowers power steeply (even by 50% at 0.5 mm).
Direction of force – highest force is available only during pulling at a 90° angle. The resistance to sliding of the magnet along the plate is standardly several times lower (approx. 1/5 of the lifting capacity).
Base massiveness – insufficiently thick plate causes magnetic saturation, causing part of the flux to be lost into the air.
Plate material – low-carbon steel attracts best. Alloy admixtures decrease magnetic properties and lifting capacity.
Surface finish – full contact is possible only on polished steel. Any scratches and bumps create air cushions, reducing force.
Heat – neodymium magnets have a negative temperature coefficient. When it is hot they are weaker, and in frost they can be stronger (up to a certain limit).

Lifting capacity was determined with the use of a smooth steel plate of optimal thickness (min. 20 mm), under perpendicular pulling force, in contrast under shearing force the holding force is lower. Moreover, even a slight gap between the magnet’s surface and the plate reduces the holding force.

Safety rules for work with NdFeB magnets

Immense force

Before starting, check safety instructions. Uncontrolled attraction can break the magnet or hurt your hand. Be predictive.

GPS Danger

An intense magnetic field negatively affects the operation of magnetometers in smartphones and navigation systems. Maintain magnets close to a device to avoid damaging the sensors.

Choking Hazard

NdFeB magnets are not toys. Swallowing a few magnets can lead to them connecting inside the digestive tract, which constitutes a severe health hazard and requires immediate surgery.

Metal Allergy

Allergy Notice: The nickel-copper-nickel coating contains nickel. If an allergic reaction happens, cease handling magnets and wear gloves.

Beware of splinters

Beware of splinters. Magnets can explode upon violent connection, ejecting sharp fragments into the air. Eye protection is mandatory.

Operating temperature

Avoid heat. Neodymium magnets are susceptible to heat. If you require resistance above 80°C, ask us about HT versions (H, SH, UH).

Medical implants

People with a pacemaker should keep an large gap from magnets. The magnetic field can stop the functioning of the implant.

Fire risk

Drilling and cutting of NdFeB material carries a risk of fire risk. Neodymium dust reacts violently with oxygen and is hard to extinguish.

Safe distance

Powerful magnetic fields can corrupt files on credit cards, hard drives, and other magnetic media. Keep a distance of min. 10 cm.

Finger safety

Pinching hazard: The pulling power is so great that it can result in hematomas, crushing, and broken bones. Use thick gloves.

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

MW 40x15 / N38 - cylindrical magnet

Detailed specification - MW 40x15 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Technical simulation of the assembly - report

Table 1: Static pull force (force vs distance) - interaction chart MW 40x15 / N38

Table 2: Slippage capacity (vertical surface) MW 40x15 / N38

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces MW 40x15 / N38

Table 4: Material efficiency (saturation) - sheet metal selection MW 40x15 / N38

Table 5: Thermal stability (stability) - power drop MW 40x15 / N38

Table 6: Magnet-Magnet interaction (attraction) - field collision MW 40x15 / N38

Table 7: Hazards (implants) - precautionary measures MW 40x15 / N38

Table 8: Collisions (cracking risk) - collision effects MW 40x15 / N38

Table 9: Coating parameters (durability) MW 40x15 / N38

Table 10: Construction data (Pc) MW 40x15 / N38

Table 11: Submerged application MW 40x15 / N38

1. Shear force

2. Plate thickness effect

3. Power loss vs temp

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

Chemical composition

Ecology and recycling (GPSR)

Pulling force

Field Strength

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UMGGW 29x8 [M4] GW / N38 - magnetic holder rubber internal thread

MPL 30x10x5 / N38 - lamellar magnet

MW 14.9x10 / N38 - cylindrical magnet

Pros and cons of Nd2Fe14B magnets.

Pros

Weaknesses

Lifting parameters

Best holding force of the magnet in ideal parameters – what contributes to it?

Practical aspects of lifting capacity – factors

Safety rules for work with NdFeB magnets

Immense force

GPS Danger

Choking Hazard

Metal Allergy

Beware of splinters

Operating temperature

Medical implants

Fire risk

Safe distance

Finger safety

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (force vs distance) - interaction chart
MW 40x15 / N38

Table 2: Slippage capacity (vertical surface)
MW 40x15 / N38

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces
MW 40x15 / N38

Table 4: Material efficiency (saturation) - sheet metal selection
MW 40x15 / N38

Table 5: Thermal stability (stability) - power drop
MW 40x15 / N38

Table 6: Magnet-Magnet interaction (attraction) - field collision
MW 40x15 / N38

Table 7: Hazards (implants) - precautionary measures
MW 40x15 / N38

Table 8: Collisions (cracking risk) - collision effects
MW 40x15 / N38

Table 9: Coating parameters (durability)
MW 40x15 / N38

Table 10: Construction data (P_c)
MW 40x15 / N38

Table 11: Submerged application
MW 40x15 / N38

Pros and cons of Nd₂Fe₁₄B magnets.