UMH 60x15x69 [M8] / N38 - magnetic holder with hook

Product available Ships today (order by 14:00)

UMH 60x15x69 [M8] / N38 - magnetic holder with hook

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

magnetic holder with hook

Catalog no 310431

GTIN/EAN: 5906301814603

5.00

Diameter Ø

60 mm [±1 mm]

Height

69 mm [±1 mm]

Height

15 mm [±1 mm]

Weight

300 g

Magnetization Direction

↑ axial

Load capacity

112.00 kg / 1098.34 N

Coating

[NiCuNi] Nickel

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143.91 ZŁ with VAT / pcs + price for transport

117.00 ZŁ net + 23% VAT / pcs

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Technical - UMH 60x15x69 [M8] / N38 - magnetic holder with hook

Specification / characteristics - UMH 60x15x69 [M8] / N38 - magnetic holder with hook

properties

properties	values
Cat. no.	310431
GTIN/EAN	5906301814603
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	60 mm [±1 mm]
Height	69 mm [±1 mm]
Height	15 mm [±1 mm]
Weight	300 g
Magnetization Direction	↑ axial
Load capacity ~ ?	112.00 kg / 1098.34 N
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±1 mm

Magnetic properties of material N38

Specification / characteristics UMH 60x15x69 [M8] / N38 - magnetic holder with hook

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

Engineering data and GPSR

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%

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: 310431-2026

Quick Unit Converter

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Force in kg

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A hook magnet is an ideal solution for quick mounting of banners, signs, and markings on steel ceiling structures. You can use them to organize wires, hang tools, or clothes on metal racks.

The magnet has a standard threaded socket, which allows replacing the hook with any other accessory with a thread. This gives huge application flexibility and allows adapting the holder to current needs.

The nominal capacity (e.g., 112.00 kg) refers to perpendicular (vertical) force when mounted on the ceiling. When mounting on a wall (vertically), the holding force is much lower due to shear force (the magnet may slide).

The steel housing (cup) shields the magnetic field, directing all its power downwards, onto the contact surface. A bare magnet could crack upon sudden application to metal, and the holder is resistant to this.

In the bathroom or kitchen, they will work perfectly, provided they are not directly splashed with water. Metal elements can rust with constant contact with atmospheric moisture.

Strengths and weaknesses of rare earth magnets.

Strengths

Besides their immense strength, neodymium magnets offer the following advantages:

Their strength remains stable, and after around ten years it drops only by ~1% (theoretically),
They maintain their magnetic properties even under close interference source,
A magnet with a shiny nickel surface has better aesthetics,
The surface of neodymium magnets generates a unique magnetic field – this is a key feature,
Thanks to resistance to high temperature, they can operate (depending on the form) even at temperatures up to 230°C and higher...
In view of the possibility of flexible forming and adaptation to unique needs, neodymium magnets can be produced in a variety of forms and dimensions, which amplifies use scope,
Versatile presence in future technologies – they find application in data components, electric motors, medical devices, as well as technologically advanced constructions.
Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in tiny dimensions, which allows their use in small systems

Disadvantages

Cons of neodymium magnets: tips and applications.

Susceptibility to cracking is one of their disadvantages. Upon intense impact they can fracture. We recommend keeping them in a special holder, which not only protects them against impacts but also raises 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 power. Therefore, we recommend our special magnets marked [AH], which maintain durability even at temperatures up to 230°C
They oxidize in a humid environment. For use outdoors we recommend using waterproof magnets e.g. in rubber, plastic
We suggest cover - magnetic mount, due to difficulties in creating threads inside the magnet and complex shapes.
Potential hazard related to microscopic parts of magnets are risky, if swallowed, which is particularly important in the aspect of protecting the youngest. It is also worth noting that small elements of these products can complicate diagnosis medical in case of swallowing.
High unit price – neodymium magnets are more expensive than other types of magnets (e.g. ferrite), which can limit application in large quantities

Holding force characteristics

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

The declared magnet strength represents the peak performance, recorded under optimal environment, meaning:

on a base made of structural steel, perfectly concentrating the magnetic field
with a thickness of at least 10 mm
with an ground contact surface
with total lack of distance (without coatings)
for force acting at a right angle (pull-off, not shear)
in neutral thermal conditions

Determinants of practical lifting force of a magnet

During everyday use, the actual lifting capacity depends on many variables, listed from most significant:

Gap between surfaces – every millimeter of separation (caused e.g. by varnish or unevenness) diminishes the magnet efficiency, often by half at just 0.5 mm.
Load vector – highest force is available only during perpendicular pulling. The force required to slide of the magnet along the surface is usually many times lower (approx. 1/5 of the lifting capacity).
Substrate thickness – to utilize 100% power, the steel must be sufficiently thick. Paper-thin metal limits the attraction force (the magnet "punches through" it).
Material type – ideal substrate is pure iron steel. Hardened steels may generate lower lifting capacity.
Surface condition – ground elements guarantee perfect abutment, which increases force. Uneven metal reduce efficiency.
Heat – NdFeB sinters have a negative temperature coefficient. When it is hot they lose power, and in frost they can be stronger (up to a certain limit).

Lifting capacity was assessed with the use of a smooth steel plate of suitable thickness (min. 20 mm), under perpendicular pulling force, whereas under shearing force the holding force is lower. Additionally, even a small distance between the magnet’s surface and the plate reduces the holding force.

Precautions when working with neodymium magnets

Caution required

Use magnets consciously. Their immense force can shock even professionals. Plan your moves and do not underestimate their force.

Impact on smartphones

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.

Eye protection

NdFeB magnets are sintered ceramics, which means they are fragile like glass. Clashing of two magnets leads to them cracking into shards.

Physical harm

Danger of trauma: The attraction force is so immense that it can cause blood blisters, crushing, and even bone fractures. Use thick gloves.

Implant safety

Warning for patients: Powerful magnets affect medical devices. Maintain at least 30 cm distance or ask another person to handle the magnets.

Heat sensitivity

Regular neodymium magnets (grade N) undergo demagnetization when the temperature surpasses 80°C. Damage is permanent.

Electronic devices

Do not bring magnets near a purse, laptop, or screen. The magnetic field can irreversibly ruin these devices and erase data from cards.

Swallowing risk

Product intended for adults. Tiny parts pose a choking risk, causing intestinal necrosis. Keep away from children and animals.

Flammability

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

Allergy Warning

It is widely known that the nickel plating (the usual finish) is a potent allergen. For allergy sufferers, prevent direct skin contact and choose versions in plastic housing.

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

UMH 60x15x69 [M8] / N38 - magnetic holder with hook

Technical - UMH 60x15x69 [M8] / N38 - magnetic holder with hook

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Elemental analysis

Sustainability

Pulling force

Magnetic Field

Other products

MW 5x25 / N38 - cylindrical magnet

NC NeoCube fi 5 mm kuleczki kolorowe / N38 - neocube

MPL 15x3x6 / N38 - lamellar magnet

UMP 67x28 [M8+M10] GW F120 Lina / N38 - search holder

Strengths and weaknesses of rare earth magnets.

Strengths

Disadvantages

Holding force characteristics

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

Determinants of practical lifting force of a magnet

Precautions when working with neodymium magnets

Caution required

Impact on smartphones

Eye protection

Physical harm

Implant safety

Heat sensitivity

Electronic devices

Swallowing risk

Flammability

Allergy Warning

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C