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MW 14x10 / 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: 1-6500
Rating: 5

cylindrical magnet

Catalog no 010391

GTIN: 5906301811084

5.00

Diameter Ø

14 mm [±0,1 mm]

Height

10 mm [±0,1 mm]

Weight

11.55 g

Magnetization Direction

↑ axial

Load capacity

6.71 kg / 65.83 N

Magnetic Induction

0.51 mT / 5 Gs

Coating

[NiCuNi] Nickel

6.84 ZŁ with VAT / pcs + price for transport

5.56 ZŁ net + 23% VAT / pcs

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MW 14x10 / N38 - cylindrical magnet

Specification / characteristics MW 14x10 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010391
GTIN	5906301811084
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	14 mm [±0,1 mm]
Height	10 mm [±0,1 mm]
Weight	11.55 g
Magnetization Direction	↑ axial
Load capacity ~ ?	6.71 kg / 65.83 N
Magnetic Induction ~ ?	0.51 mT / 5 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 14x10 / N38 - cylindrical magnet

properties	values	units
remenance Br [Min. - Max.] ?	12.2-12.6	kGs
remenance Br [Min. - Max.] ?	1220-1260	T
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 106	°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 - report

Presented information constitute the direct effect of a mathematical simulation. Values rely on algorithms for the class NdFeB. Real-world performance may differ from theoretical values. Use these data as a preliminary roadmap for designers.

Table 1: Static pull force (force vs distance) - characteristics
MW 14x10 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg)	Risk Status
0 mm	5072 Gs 507.2 mT	6.71 kg / 6710.0 g 65.8 N	warning
1 mm	4354 Gs 435.4 mT	4.94 kg / 4944.4 g 48.5 N	warning
2 mm	3652 Gs 365.2 mT	3.48 kg / 3479.0 g 34.1 N	warning
5 mm	2015 Gs 201.5 mT	1.06 kg / 1058.7 g 10.4 N	low risk
10 mm	773 Gs 77.3 mT	0.16 kg / 155.7 g 1.5 N	low risk
15 mm	352 Gs 35.2 mT	0.03 kg / 32.3 g 0.3 N	low risk
20 mm	186 Gs 18.6 mT	0.01 kg / 9.0 g 0.1 N	low risk
30 mm	69 Gs 6.9 mT	0.00 kg / 1.3 g 0.0 N	low risk
50 mm	18 Gs 1.8 mT	0.00 kg / 0.1 g 0.0 N	low risk

Magnetic force decreases sharply with every mm of gap. Keep in mind that even a microscopic distance (e.g., contamination, paint, dust) strongly reduces the pull force. Magnets operate optimally during direct contact; air break drastically cuts the force. See how flashily the pull force fall, when the magnet does not adhere directly to the steel surface. When calculating the assembly, avoid unnecessary gaps.

Table 2: Vertical assembly (sliding) - behavior on slippery surfaces
MW 14x10 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg)
Raw steel	µ = 0.3 30% Nominalnej Siły	2.01 kg / 2013.0 g 19.7 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	1.34 kg / 1342.0 g 13.2 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.67 kg / 671.0 g 6.6 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	3.36 kg / 3355.0 g 32.9 N

When mounting a magnet on a vertical wall (e.g., a car body), it you can count on barely approx. 20%-30% of its nominal power. Gravitational force as well as a low friction coefficient cause that products move down faster than they detach. Planning a hanger? Remember that the shear force is noticeably lower than the maximum static pull force. On a slippery surface, the element will slide down under a significantly smaller load. Using a rubber pad can drastically improve the result.

Table 3: Material efficiency (saturation) - power losses
MW 14x10 / N38

Steel thickness (mm)	% power	Real pull force (kg)
0.5 mm	10%	0.67 kg / 671.0 g 6.6 N
1 mm	25%	1.68 kg / 1677.5 g 16.5 N
2 mm	50%	3.36 kg / 3355.0 g 32.9 N
5 mm	100%	6.71 kg / 6710.0 g 65.8 N
10 mm	100%	6.71 kg / 6710.0 g 65.8 N

A too thin steel is not enough to conduct the entire magnetic field, which weakens actual performance of the magnet. If you install a neodymium to a weak sheet, the field will penetrate right through and the holding will be smaller. To achieve full efficiency of this neodymium's power, you require a sufficiently solid element of metal. The saturation phenomenon means that on thin elements (e.g., thin profiles), the product works worse. We suggest choosing the steel thickness based on the following data.

Table 4: Working in heat (stability) - resistance threshold
MW 14x10 / N38

Ambient temp. (°C)	Power loss	Remaining pull	Status
20 °C	0.0%	6.71 kg / 6710.0 g 65.8 N	OK
40 °C	-2.2%	6.56 kg / 6562.4 g 64.4 N	OK
60 °C	-4.4%	6.41 kg / 6414.8 g 62.9 N	OK
80 °C	-6.6%	6.27 kg / 6267.1 g 61.5 N
100 °C	-28.8%	4.78 kg / 4777.5 g 46.9 N

Ordinary NdFeB products irreversibly lose power above the temperature limit. Protect against heat – heat can irreversibly demagnetize this magnet. With every degree above norm, the neodymium's capacity temporarily lowers. Avoid using this magnet close to heaters exceeding its operating temperature limit. Ignoring the limit will result in irreversible degradation of magnetism.

Table 5: Two magnets (repulsion) - field collision
MW 14x10 / N38

Gap (mm)	Attraction (kg) (N-S)	Repulsion (kg) (N-N)
0 mm	10.07 kg / 10065.0 g 98.7 N	N/A
2 mm	5.22 kg / 5220.0 g 51.2 N	4.87 kg / 4872.0 g 47.8 N
5 mm	1.59 kg / 1590.0 g 15.6 N	1.48 kg / 1484.0 g 14.6 N
10 mm	0.24 kg / 240.0 g 2.4 N	0.22 kg / 224.0 g 2.2 N
20 mm	0.02 kg / 15.0 g 0.1 N	0.01 kg / 14.0 g 0.1 N
50 mm	0.00 kg / 0.0 g 0.0 N	0.00 kg / 0.0 g 0.0 N

Two strong neodymiums interact from a much further distance than a magnet and sheet setup. The setup of two magnets generates a stronger field and a further horizon of action. Want to build a solid fastener? Use a pair of magnets instead of one magnet and a striker plate. Be careful that when attracting two neodymiums, the collision energy is extreme. The repulsion force is slightly lower than the attraction, but still large.

Table 6: Protective zones (implants) - warnings
MW 14x10 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	8.0 cm
Hearing aid	10 Gs (1.0 mT)	6.5 cm
Timepiece	20 Gs (2.0 mT)	5.0 cm
Mobile device	40 Gs (4.0 mT)	4.0 cm
Car key	50 Gs (5.0 mT)	3.5 cm
Payment card	400 Gs (40.0 mT)	1.5 cm
HDD hard drive	600 Gs (60.0 mT)	1.5 cm

A strong magnetic field is a large risk to electronic devices as well as medical implants. These neodymiums generate a flux that prevents correct functioning of digital equipment. Be aware: the unseen radiation acts through matter and plastic. Exceptional care must be exercised by people with hearing aids and insulin pumps. Also at risk are: automatic timepieces, remotes, speakers, and screens. Do not place the magnet near cards, HDD media, or precise measuring instruments.

Table 7: Impact energy (cracking risk) - warning
MW 14x10 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	24.66 km/h (6.85 m/s)	0.27 J
30 mm	42.11 km/h (11.70 m/s)	0.79 J
50 mm	54.36 km/h (15.10 m/s)	1.32 J
100 mm	76.87 km/h (21.35 m/s)	2.63 J

Neodymium magnets are prone to chipping – a strong collision with metal causes immediate chipping. Control the attraction moment – a neodymium left loose becomes dangerous. Striking energy can trigger coating fragments or painful pinches to skin. Always hold the magnet during installation so it doesn't hit with great force against the metal. A collision at high speed ends with a crack of the magnet. Wear eye protection when playing with powerful specimens.

Table 8: Corrosion resistance
MW 14x10 / 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 9: Physics of underwater searching
MW 14x10 / N38

Environment	Effective steel pull	Effect
Air (land)	6.71 kg	Standard
Water (riverbed)	7.68 kg (+0.97 kg Buoyancy gain)	+14.5%

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

In water, the magnet feels stronger thanks to Archimedes' principle. Buoyancy helps in lifting finds.

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MPL 40x10x5x2[7/3.5] / N38 - lamellar magnet

9.93 ZŁ brutto / pcs

This product is an exceptionally strong cylindrical magnet, made from modern NdFeB material, which, with dimensions of Ø14x10 mm, guarantees the highest energy density. This specific item features high dimensional repeatability and professional build quality, making it an excellent solution for professional engineers and designers. As a magnetic rod with significant force (approx. 6.71 kg), this product is available off-the-shelf from our warehouse in Poland, ensuring quick order fulfillment. Additionally, its triple-layer Ni-Cu-Ni coating effectively protects it against corrosion in standard operating conditions, ensuring an aesthetic appearance and durability for years.

This model is created for building electric motors, advanced Hall effect sensors, and efficient filters, where maximum induction on a small surface counts. Thanks to the pull force of 65.83 N with a weight of only 11.55 g, this cylindrical magnet is indispensable in miniature devices and wherever every gram matters.

Since our magnets have a very precise dimensions, the best method is to glue them into holes with a slightly larger diameter (e.g., 14.1 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 durability of the connection.

Grade N38 is the most popular standard for industrial neodymium magnets, offering a great economic balance and operational stability. If you need even stronger magnets in the same volume (Ø14x10), 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 Ø14x10 mm, which, at a weight of 11.55 g, makes it an element with high magnetic energy density. The key parameter here is the holding force amounting to approximately 6.71 kg (force ~65.83 N), which, with such defined dimensions, proves the high grade of the NdFeB material. The product has a [NiCuNi] coating, which secures it against external factors, giving it an aesthetic, silvery shine.

This cylinder is magnetized axially (along the height of 10 mm), which means that the N and S poles are located on the flat, circular surfaces. Such an arrangement is standard when connecting magnets in stacks (e.g., in filters) or when mounting in sockets at the bottom of a hole. On request, we can also produce versions magnetized through the diameter if your project requires it.

Advantages as well as disadvantages of rare earth magnets.

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

They do not lose strength, even over nearly 10 years – the drop in power is only ~1% (based on measurements),
Neodymium magnets are characterized by extremely resistant to demagnetization caused by magnetic disturbances,
A magnet with a metallic nickel surface is more attractive,
Magnets have very high magnetic induction on the active area,
Due to their durability and thermal resistance, neodymium magnets are capable of operate (depending on the form) even at high temperatures reaching 230°C or more...
Thanks to modularity in shaping and the capacity to customize to individual projects,
Key role in modern industrial fields – they are utilized in computer drives, motor assemblies, advanced medical instruments, as well as multitasking production systems.
Relatively small size with high pulling force – neodymium magnets offer high power in small dimensions, which allows their use in compact constructions

Cons of neodymium magnets: application proposals

Brittleness is one of their disadvantages. Upon intense impact they can fracture. We advise keeping them in a steel housing, which not only secures them against impacts but also increases their durability
Neodymium magnets decrease their force under the influence of heating. As soon as 80°C is exceeded, many of them start losing their force. Therefore, we recommend our special magnets marked [AH], which maintain stability even at temperatures up to 230°C
Magnets exposed to a humid environment can rust. Therefore when using outdoors, we advise using water-impermeable magnets made of rubber, plastic or other material resistant to moisture
Due to limitations in realizing nuts and complicated shapes in magnets, we propose using a housing - magnetic holder.
Possible danger to health – tiny shards of magnets are risky, when accidentally swallowed, which is particularly important in the context of child safety. Additionally, small elements of these products are able to complicate diagnosis medical when they are in the body.
Due to expensive raw materials, their price exceeds standard values,

Maximum holding power of the magnet – what it depends on?

Holding force of 6.71 kg is a result of laboratory testing executed under specific, ideal conditions:

with the application of a sheet made of low-carbon steel, ensuring full magnetic saturation
possessing a massiveness of at least 10 mm to ensure full flux closure
characterized by lack of roughness
with zero gap (no paint)
during detachment in a direction perpendicular to the mounting surface
at ambient temperature approx. 20 degrees Celsius

Lifting capacity in practice – influencing factors

Holding efficiency is influenced by working environment parameters, such as (from most important):

Gap (between the magnet and the plate), as even a microscopic clearance (e.g. 0.5 mm) leads to a drastic drop in lifting capacity by up to 50% (this also applies to varnish, corrosion or dirt).
Load vector – highest force is reached only during pulling at a 90° angle. The shear force of the magnet along the plate is usually many times lower (approx. 1/5 of the lifting capacity).
Plate thickness – too thin plate does not close the flux, causing part of the flux to be wasted to the other side.
Steel grade – ideal substrate is high-permeability steel. Stainless steels may attract less.
Smoothness – full contact is possible only on smooth steel. Any scratches and bumps create air cushions, weakening the magnet.
Thermal factor – high temperature weakens pulling force. Too high temperature can permanently demagnetize the magnet.

* Lifting capacity was assessed with the use of a steel plate with a smooth surface of optimal thickness (min. 20 mm), under perpendicular pulling force, whereas under shearing force the holding force is lower. In addition, even a minimal clearance {between} the magnet’s surface and the plate decreases the lifting capacity.

Safety rules for work with NdFeB magnets

Heat sensitivity

Control the heat. Exposing the magnet to high heat will ruin its properties and strength.

Bodily injuries

Watch your fingers. Two powerful magnets will join immediately with a force of massive weight, crushing everything in their path. Exercise extreme caution!

Keep away from electronics

GPS units and mobile phones are extremely sensitive to magnetism. Close proximity with a strong magnet can permanently damage the sensors in your phone.

Warning for heart patients

People with a pacemaker have to maintain an safe separation from magnets. The magnetism can disrupt the operation of the life-saving device.

Dust explosion hazard

Fire hazard: Neodymium dust is explosive. Avoid machining magnets without safety gear as this risks ignition.

Adults only

Adult use only. Tiny parts pose a choking risk, leading to serious injuries. Store away from children and animals.

Safe operation

Before use, read the rules. Uncontrolled attraction can destroy the magnet or injure your hand. Be predictive.

Risk of cracking

Despite the nickel coating, the material is delicate and cannot withstand shocks. Avoid impacts, as the magnet may crumble into hazardous fragments.

Keep away from computers

Avoid bringing magnets near a purse, computer, or TV. The magnetism can permanently damage these devices and erase data from cards.

Metal Allergy

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

Security!

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

MW 14x10 / N38 - cylindrical magnet

MW 14x10 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical modeling of the product - report

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UMGZ 75x34x18 [M10] GZ / N38 - magnetic holder external thread

UMS 32x10.5x5.5x8 / N38 - conical magnetic holder

MPL 40x10x5x2[7/3.5] / N38 - lamellar magnet

Advantages as well as disadvantages of rare earth magnets.

Maximum holding power of the magnet – what it depends on?

Lifting capacity in practice – influencing factors

Safety rules for work with NdFeB magnets

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C