Product available Ships in 2 days

MW 5x7 / 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 010090

GTIN/EAN: 5906301810896

5.00

Diameter Ø

5 mm [±0,1 mm]

Height

7 mm [±0,1 mm]

Weight

1.03 g

Magnetization Direction

↑ axial

Load capacity

0.67 kg / 6.60 N

Magnetic Induction

582.40 mT / 5824 Gs

Coating

[NiCuNi] Nickel

product details »

0.726 ZŁ with VAT / pcs + price for transport

0.590 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?

price from 1 pcs

0.590 ZŁ

0.726 ZŁ

price from 1100 pcs

0.555 ZŁ

0.682 ZŁ

price from 4300 pcs

0.519 ZŁ

0.639 ZŁ

Carbon Footprint – environmental impact GPSR Regulation – product safety

Looking for a better price?

Call us +48 888 99 98 98 alternatively get in touch through our online form the contact form page.
Specifications along with appearance of neodymium magnets can be analyzed using our power calculator.

Order by 14:00 and we’ll ship today!

Product card - MW 5x7 / N38 - cylindrical magnet

Specification / characteristics - MW 5x7 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010090
GTIN/EAN	5906301810896
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	5 mm [±0,1 mm]
Height	7 mm [±0,1 mm]
Weight	1.03 g
Magnetization Direction	↑ axial
Load capacity ~ ?	0.67 kg / 6.60 N
Magnetic Induction ~ ?	582.40 mT / 5824 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 5x7 / 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 assembly - report

Presented data are the direct effect of a physical simulation. Values rely on algorithms for the material Nd₂Fe₁₄B. Real-world parameters might slightly differ from theoretical values. Please consider these data as a preliminary roadmap for designers.

Table 1: Static pull force (pull vs distance) - interaction chart
MW 5x7 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	5815 Gs 581.5 mT	0.67 kg / 1.48 pounds 670.0 g / 6.6 N	weak grip
1 mm	3615 Gs 361.5 mT	0.26 kg / 0.57 pounds 259.0 g / 2.5 N	weak grip
2 mm	2101 Gs 210.1 mT	0.09 kg / 0.19 pounds 87.4 g / 0.9 N	weak grip
3 mm	1252 Gs 125.2 mT	0.03 kg / 0.07 pounds 31.1 g / 0.3 N	weak grip
5 mm	524 Gs 52.4 mT	0.01 kg / 0.01 pounds 5.4 g / 0.1 N	weak grip
10 mm	119 Gs 11.9 mT	0.00 kg / 0.00 pounds 0.3 g / 0.0 N	weak grip
15 mm	45 Gs 4.5 mT	0.00 kg / 0.00 pounds 0.0 g / 0.0 N	weak grip
20 mm	21 Gs 2.1 mT	0.00 kg / 0.00 pounds 0.0 g / 0.0 N	weak grip
30 mm	7 Gs 0.7 mT	0.00 kg / 0.00 pounds 0.0 g / 0.0 N	weak grip
50 mm	2 Gs 0.2 mT	0.00 kg / 0.00 pounds 0.0 g / 0.0 N	weak grip

Magnetic force decreases drastically with every subsequent millimeter of spacing. Keep in mind that even a very thin break (e.g., contamination, varnish, rust) noticeably reduces the pull force. Magnets hold strongest in perfect adhesion; air break weakens the power. Observe how quickly the load capacity plummet, when the magnet does not touch tightly to the metal substrate. When planning the assembly, discard unnecessary gaps.

Table 2: Vertical force (wall)
MW 5x7 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	0.13 kg / 0.30 pounds 134.0 g / 1.3 N
1 mm	Stal (~0.2)	0.05 kg / 0.11 pounds 52.0 g / 0.5 N
2 mm	Stal (~0.2)	0.02 kg / 0.04 pounds 18.0 g / 0.2 N
3 mm	Stal (~0.2)	0.01 kg / 0.01 pounds 6.0 g / 0.1 N
5 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 2.0 g / 0.0 N
10 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 0.0 g / 0.0 N
15 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 0.0 g / 0.0 N
20 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 0.0 g / 0.0 N
30 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 0.0 g / 0.0 N
50 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 0.0 g / 0.0 N

This section presents the theoretical weight limit necessary to cause the shifting of the magnet down against a upright steel plate (considering standard friction coefficient). This value is relative to the air gap between the magnet and the surface.

Table 3: Wall mounting (sliding) - behavior on slippery surfaces
MW 5x7 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	0.20 kg / 0.44 pounds 201.0 g / 2.0 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.13 kg / 0.30 pounds 134.0 g / 1.3 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.07 kg / 0.15 pounds 67.0 g / 0.7 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	0.34 kg / 0.74 pounds 335.0 g / 3.3 N

When mounting a magnet on a vertical wall (e.g., a car body), it will maintain barely approx. 20%-30% of its nominal power. Gravitational force and a low friction coefficient mean that products slip faster than they pull off. Designing a wall mount? Note that the shear force is noticeably lower than the perpendicular breakaway force. On a painted metal, the holder will slide down under a significantly smaller load. Application of an anti-slip pad can drastically improve the result.

Table 4: Steel thickness (substrate influence) - power losses
MW 5x7 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.07 kg / 0.15 pounds 67.0 g / 0.7 N
1 mm	25%	0.17 kg / 0.37 pounds 167.5 g / 1.6 N
2 mm	50%	0.34 kg / 0.74 pounds 335.0 g / 3.3 N
3 mm	75%	0.50 kg / 1.11 pounds 502.5 g / 4.9 N
5 mm	100%	0.67 kg / 1.48 pounds 670.0 g / 6.6 N
10 mm	100%	0.67 kg / 1.48 pounds 670.0 g / 6.6 N
11 mm	100%	0.67 kg / 1.48 pounds 670.0 g / 6.6 N
12 mm	100%	0.67 kg / 1.48 pounds 670.0 g / 6.6 N

A thin metal plate cannot absorb the entire magnetic field, which squanders power of the holder. Should you attach a powerful product to a weak sheet, the magnetism will penetrate right through and the holding will be smaller. To achieve the maximum of this magnet's power, you require a sufficiently solid backing of metal. The saturation effect means that on thin elements (e.g., thin profiles), the magnet shows lower pull force. We recommend selecting the steel dimension according to the table below.

Table 5: Working in heat (material behavior) - resistance threshold
MW 5x7 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	0.67 kg / 1.48 pounds 670.0 g / 6.6 N	OK
40 °C	-2.2%	0.66 kg / 1.44 pounds 655.3 g / 6.4 N	OK
60 °C	-4.4%	0.64 kg / 1.41 pounds 640.5 g / 6.3 N	OK
80 °C	-6.6%	0.63 kg / 1.38 pounds 625.8 g / 6.1 N
100 °C	-28.8%	0.48 kg / 1.05 pounds 477.0 g / 4.7 N

Ordinary NdFeB products irreversibly lose parameters after exceeding the maximum temperature. Avoid high temperatures – heat can permanently damage this product. As the temperature rises, the magnet's capacity temporarily lowers. Avoid using this product near heat sources higher than its safe range. Ignoring the limit will result in permanent loss of magnetic properties.

*Engineering note: Heat tolerance is determined by both grade, but also on the magnet's shape. Thin magnets (low Pc) risk losing magnetic properties at lower temperatures compared to rod magnets. Red status in the table indicates a risk of irreversible loss for this specific geometry.

Table 6: Magnet-Magnet interaction (attraction) - field collision
MW 5x7 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	4.09 kg / 9.02 pounds 6 079 Gs	0.61 kg / 1.35 pounds 614 g / 6.0 N	N/A
1 mm	2.64 kg / 5.81 pounds 9 332 Gs	0.40 kg / 0.87 pounds 395 g / 3.9 N	2.37 kg / 5.23 pounds ~0 Gs
2 mm	1.58 kg / 3.49 pounds 7 230 Gs	0.24 kg / 0.52 pounds 237 g / 2.3 N	1.42 kg / 3.14 pounds ~0 Gs
3 mm	0.92 kg / 2.03 pounds 5 516 Gs	0.14 kg / 0.30 pounds 138 g / 1.4 N	0.83 kg / 1.83 pounds ~0 Gs
5 mm	0.31 kg / 0.69 pounds 3 224 Gs	0.05 kg / 0.10 pounds 47 g / 0.5 N	0.28 kg / 0.62 pounds ~0 Gs
10 mm	0.03 kg / 0.07 pounds 1 048 Gs	0.00 kg / 0.01 pounds 5 g / 0.0 N	0.03 kg / 0.07 pounds ~0 Gs
20 mm	0.00 kg / 0.00 pounds 238 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs
50 mm	0.00 kg / 0.00 pounds 24 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs
60 mm	0.00 kg / 0.00 pounds 15 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs
70 mm	0.00 kg / 0.00 pounds 10 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs
80 mm	0.00 kg / 0.00 pounds 7 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs
90 mm	0.00 kg / 0.00 pounds 5 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs
100 mm	0.00 kg / 0.00 pounds 4 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs

Two strong neodymiums attract each other from a significantly greater distance than a magnet and sheet setup. Such a system of magnet-to-magnet generates a stronger field and a further horizon of action. Planning to create a strong closure? Use a pair of magnets instead of a neodymium and a steel. Exercise caution that when connecting a pair of magnets, the impact force is extreme. The repulsion force is marginally weaker than the connection force, but still significant.
*Field value in repulsion mode reaches ~0 Gs in the exact middle between the magnets (resulting from vector opposition).
* Calculations demonstrate shear force of two same neodymium magnets (friction coefficient ~0.15 for Ni-Ni layer).

Table 7: Hazards (implants) - warnings
MW 5x7 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	3.5 cm
Hearing aid	10 Gs (1.0 mT)	3.0 cm
Timepiece	20 Gs (2.0 mT)	2.5 cm
Phone / Smartphone	40 Gs (4.0 mT)	2.0 cm
Car key	50 Gs (5.0 mT)	1.5 cm
Payment card	400 Gs (40.0 mT)	1.0 cm
HDD hard drive	600 Gs (60.0 mT)	0.5 cm

Powerful magnet radiation is a serious hazard to electronic devices and pacemakers. These NdFeB products generate a flux that disrupts operation of digital equipment. Remember: the invisible magnetic field passes through tissues and plastic. Exceptional care must be exercised by people with cochlear implants and insulin pumps. The risk also applies to: automatic timepieces, car keys, speakers, and displays. Do not bring the product near payment cards, hard drives, or precise measuring instruments.

Table 8: Impact energy (cracking risk) - warning
MW 5x7 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	25.73 km/h (7.15 m/s)	0.03 J
30 mm	44.55 km/h (12.38 m/s)	0.08 J
50 mm	57.52 km/h (15.98 m/s)	0.13 J
100 mm	81.34 km/h (22.59 m/s)	0.26 J

Magnetic elements are very brittle – a strong collision with metal risks their cracking. Watch the impact speed – a magnet released freely becomes dangerous. Kinetic force can destroy the magnet or painful pinches to skin. Always hold the magnet during mounting so it doesn't hit violently against the metal. A collision at high speed ends with a crack of the neodymium. Wear safety glasses when playing with large magnets.

Table 9: Coating parameters (durability)
MW 5x7 / 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. Note the thickness of the protective layer.

Table 10: Electrical data (Flux)
MW 5x7 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	1 219 Mx	12.2 µWb
P_c Coefficient	1.05	High (Stable)

Flux value passing through the pole surface. Essential parameter in coil applications and motors. P_c value defines the working geometry.

Table 11: Hydrostatics and buoyancy
MW 5x7 / N38

Environment	Effective steel pull	Effect
Air (land)	0.67 kg	Standard
Water (riverbed)	0.77 kg (+0.10 kg buoyancy gain)	+14.5%

Warning: Remember to wipe the magnet thoroughly after removing it from water and apply a protective layer (e.g., oil) to avoid corrosion.

Contrary to myths, water does not block the magnetic field. As a result, your magnet will pull a heavier object from the bottom than if you lifted it in the air.

1. Wall mount (shear)

*Caution: On a vertical surface, the magnet retains just ~20% of its perpendicular strength.

2. Steel thickness impact

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

3. Thermal stability

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

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 1.05

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%

Sustainability

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

Safety card (GPSR)

responsible entity

Dhit sp. z o.o.

ul. Kościuszki 6A, 05-850 Ożarów Mazowiecki

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

batch number/type

id: 010090-2026

Measurement Calculator

Pulling force

Force (N)

Pounds (lbs)

Magnetic Induction

Induction (Gs)

Simply populate any input, to let the tool compute everything else for you.

MW 4x4 / N38 - cylindrical magnet

0.406 ZŁ brutto / pcs

Product available Ships in 2 days

UMGW 60x30x15 [M10] GW / N38 - magnetic holder internal thread

102.96 ZŁ brutto / pcs

Product available Ships in 2 days

MW 14x2 / N38 - cylindrical magnet

0.898 ZŁ brutto / pcs

Product available Ships in 2 days

MPL 12.5x12.5x5 / N38 - lamellar magnet

2.83 ZŁ brutto / pcs

The offered product is an incredibly powerful cylinder magnet, composed of durable NdFeB material, which, with dimensions of Ø5x7 mm, guarantees optimal power. The MW 5x7 / N38 model boasts an accuracy of ±0.1mm and industrial build quality, making it a perfect solution for the most demanding engineers and designers. As a magnetic rod with impressive force (approx. 0.67 kg), this product is in stock from our warehouse in Poland, ensuring rapid order fulfillment. Furthermore, its Ni-Cu-Ni coating shields it against corrosion in typical operating conditions, guaranteeing an aesthetic appearance and durability for years.

It finds application in modeling, advanced automation, and broadly understood industry, serving as a fastening or actuating element. Thanks to the pull force of 6.60 N with a weight of only 1.03 g, this cylindrical magnet is indispensable in electronics and wherever every gram matters.

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., 5.1 mm) using two-component epoxy glues. To ensure long-term durability in industry, anaerobic resins are used, which do not react with the nickel coating 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 high resistance to demagnetization. If you need even stronger magnets in the same volume (Ø5x7), 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 5 mm and height 7 mm. The value of 6.60 N means that the magnet is capable of holding a weight many times exceeding its own mass of 1.03 g. The product has a [NiCuNi] coating, which secures it against external factors, giving it an aesthetic, silvery shine.

This rod magnet is magnetized axially (along the height of 7 mm), which means that the N and S poles are located on the flat, circular surfaces. Thanks to this, the magnet can be easily glued into a hole and achieve a strong field on the front surface. On request, we can also produce versions magnetized diametrically if your project requires it.

Advantages as well as disadvantages of Nd₂Fe₁₄B magnets.

Strengths

Besides their immense magnetic power, neodymium magnets offer the following advantages:

They do not lose magnetism, even after approximately 10 years – the decrease in power is only ~1% (based on measurements),
Magnets very well protect themselves against demagnetization caused by external fields,
Thanks to the shiny finish, the layer of nickel, gold-plated, or silver gives an elegant appearance,
Neodymium magnets generate maximum magnetic induction on a small surface, which increases force concentration,
Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their shape) at temperatures up to 230°C and above...
Possibility of detailed modeling as well as optimizing to atypical conditions,
Key role in modern technologies – they serve a role in mass storage devices, electric motors, medical equipment, and other advanced devices.
Thanks to their power density, small magnets offer high operating force, with minimal size,

Weaknesses

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

Brittleness is one of their disadvantages. Upon intense impact they can fracture. We recommend keeping them in a steel housing, which not only secures them against impacts but also increases their durability
Neodymium magnets lose their power under the influence of heating. As soon as 80°C is exceeded, many of them start losing their power. Therefore, we recommend our special magnets marked [AH], which maintain stability even at temperatures up to 230°C
Due to the susceptibility of magnets to corrosion in a humid environment, we suggest using waterproof magnets made of rubber, plastic or other material stable to moisture, when using outdoors
We suggest a housing - magnetic mount, due to difficulties in producing nuts inside the magnet and complex shapes.
Possible danger related to microscopic parts of magnets pose a threat, when accidentally swallowed, which becomes key in the context of child health protection. Furthermore, small elements of these products are able to be problematic in diagnostics medical in case of swallowing.
With mass production the cost of neodymium magnets is economically unviable,

Lifting parameters

Breakaway strength of the magnet in ideal conditions – what contributes to it?

Breakaway force was determined for optimal configuration, assuming:

on a plate made of mild steel, effectively closing the magnetic flux
possessing a thickness of at least 10 mm to avoid saturation
with an polished touching surface
under conditions of no distance (surface-to-surface)
during pulling in a direction vertical to the mounting surface
at temperature approx. 20 degrees Celsius

Impact of factors on magnetic holding capacity in practice

Effective lifting capacity impacted by working environment parameters, including (from priority):

Clearance – the presence of any layer (paint, tape, air) interrupts the magnetic circuit, which lowers capacity steeply (even by 50% at 0.5 mm).
Pull-off angle – note that the magnet holds strongest perpendicularly. Under sliding down, the capacity drops drastically, often to levels of 20-30% of the nominal value.
Plate thickness – insufficiently thick plate does not accept the full field, causing part of the flux to be escaped into the air.
Metal type – not every steel reacts the same. High carbon content worsen the interaction with the magnet.
Base smoothness – the smoother and more polished the surface, the better the adhesion and stronger the hold. Roughness acts like micro-gaps.
Operating temperature – NdFeB sinters have a sensitivity to temperature. At higher temperatures they are weaker, and in frost gain strength (up to a certain limit).

Lifting capacity testing was conducted on plates with a smooth surface of optimal thickness, under perpendicular forces, in contrast under attempts to slide the magnet the holding force is lower. In addition, even a minimal clearance between the magnet and the plate reduces the holding force.

Precautions when working with neodymium magnets

Heat warning

Do not overheat. NdFeB magnets are sensitive to heat. If you require operation above 80°C, look for HT versions (H, SH, UH).

Conscious usage

Before use, check safety instructions. Sudden snapping can destroy the magnet or hurt your hand. Think ahead.

Data carriers

Powerful magnetic fields can destroy records on credit cards, hard drives, and storage devices. Stay away of min. 10 cm.

Danger to pacemakers

Warning for patients: Strong magnetic fields disrupt medical devices. Maintain minimum 30 cm distance or ask another person to handle the magnets.

Magnets are brittle

Beware of splinters. Magnets can fracture upon violent connection, ejecting sharp fragments into the air. We recommend safety glasses.

Sensitization to coating

Studies show that nickel (the usual finish) is a strong allergen. For allergy sufferers, avoid direct skin contact or select versions in plastic housing.

No play value

Always keep magnets out of reach of children. Choking hazard is high, and the effects of magnets clamping inside the body are very dangerous.

Finger safety

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

Threat to navigation

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

Machining danger

Drilling and cutting of NdFeB material poses a fire hazard. Magnetic powder oxidizes rapidly with oxygen and is difficult to extinguish.

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

MW 5x7 / N38 - cylindrical magnet

Product card - MW 5x7 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical modeling of the assembly - report

Table 1: Static pull force (pull vs distance) - interaction chart MW 5x7 / N38

Table 2: Vertical force (wall) MW 5x7 / N38

Table 3: Wall mounting (sliding) - behavior on slippery surfaces MW 5x7 / N38

Table 4: Steel thickness (substrate influence) - power losses MW 5x7 / N38

Table 5: Working in heat (material behavior) - resistance threshold MW 5x7 / N38

Table 6: Magnet-Magnet interaction (attraction) - field collision MW 5x7 / N38

Table 7: Hazards (implants) - warnings MW 5x7 / N38

Table 8: Impact energy (cracking risk) - warning MW 5x7 / N38

Table 9: Coating parameters (durability) MW 5x7 / N38

Table 10: Electrical data (Flux) MW 5x7 / N38

Table 11: Hydrostatics and buoyancy MW 5x7 / N38

1. Wall mount (shear)

2. Steel thickness impact

3. Thermal stability

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

Material specification

Sustainability

Pulling force

Magnetic Induction

See also products

MW 4x4 / N38 - cylindrical magnet

UMGW 60x30x15 [M10] GW / N38 - magnetic holder internal thread

MW 14x2 / N38 - cylindrical magnet

MPL 12.5x12.5x5 / N38 - lamellar magnet

Advantages as well as disadvantages of Nd2Fe14B magnets.

Strengths

Weaknesses

Lifting parameters

Breakaway strength of the magnet in ideal conditions – what contributes to it?

Impact of factors on magnetic holding capacity in practice

Precautions when working with neodymium magnets

Heat warning

Conscious usage

Data carriers

Danger to pacemakers

Magnets are brittle

Sensitization to coating

No play value

Finger safety

Threat to navigation

Machining danger

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (pull vs distance) - interaction chart
MW 5x7 / N38

Table 2: Vertical force (wall)
MW 5x7 / N38

Table 3: Wall mounting (sliding) - behavior on slippery surfaces
MW 5x7 / N38

Table 4: Steel thickness (substrate influence) - power losses
MW 5x7 / N38

Table 5: Working in heat (material behavior) - resistance threshold
MW 5x7 / N38

Table 6: Magnet-Magnet interaction (attraction) - field collision
MW 5x7 / N38

Table 7: Hazards (implants) - warnings
MW 5x7 / N38

Table 8: Impact energy (cracking risk) - warning
MW 5x7 / N38

Table 9: Coating parameters (durability)
MW 5x7 / N38

Table 10: Electrical data (Flux)
MW 5x7 / N38

Table 11: Hydrostatics and buoyancy
MW 5x7 / N38

Advantages as well as disadvantages of Nd₂Fe₁₄B magnets.