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

magnetic holder with hook

Catalog no 310431

GTIN/EAN: 5906301814603

5.00
Load capacity 112.00 kg / 1098.34 N
Diameter Ø
60 mm [±1 mm]
Height
69 mm [±1 mm]
Height
15 mm [±1 mm]
Weight
300 g
Magnetization Direction
↑ axial
Coating
[NiCuNi] Nickel
check technical specifications »

143.91 zł with VAT / pcs + price for transport

117.00 zł net + 23% VAT / pcs

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Technical details - 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

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 and environmental data

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
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A hook magnet is an ideal solution for quick mounting of banners, signs, and markings on steel ceiling structures. It is a universal hanger that you can move to another place at any time without a trace.
The magnet has a standard threaded socket, which allows replacing the hook with any other accessory with a thread. Check the thread size in the product specification to select matching replacements.
The nominal capacity (e.g., 112.00 kg) refers to perpendicular (vertical) force when mounted on the ceiling. For heavy ceiling ads or tools, we recommend choosing a magnet with a considerable power reserve.
The cup acts as a magnetic armature, intensifying the neodymium action and increasing efficiency. The housing ensures mechanical durability, which is important in industrial and assembly conditions.
In the bathroom or kitchen, they will work perfectly, provided they are not directly splashed with water. In home and office conditions, they will serve for many years without signs of wear.

Pros and cons of Nd2Fe14B magnets.

Benefits

Apart from their strong magnetic energy, neodymium magnets have these key benefits:
  • They do not lose power, even after approximately ten years – the decrease in strength is only ~1% (theoretically),
  • They show high resistance to demagnetization induced by external field influence,
  • In other words, due to the glossy finish of nickel, the element looks attractive,
  • Magnets exhibit huge magnetic induction on the active area,
  • Thanks to resistance to high temperature, they are capable of working (depending on the shape) even at temperatures up to 230°C and higher...
  • Possibility of precise creating and adjusting to defined requirements,
  • Huge importance in innovative solutions – they are utilized in computer drives, electromotive mechanisms, medical devices, and multitasking production systems.
  • Relatively small size with high pulling force – neodymium magnets offer high power in tiny dimensions, which allows their use in compact constructions

Limitations

Cons of neodymium magnets and ways of using them
  • At very strong impacts they can break, therefore we recommend placing them in special holders. A metal housing provides additional protection against damage and increases the magnet's durability.
  • Neodymium magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of power (a factor is the shape as well as dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are very resistant to heat
  • They rust in a humid environment. For use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
  • Limited possibility of creating threads in the magnet and complex shapes - preferred is cover - magnet mounting.
  • Potential hazard to health – tiny shards of magnets pose a threat, in case of ingestion, which is particularly important in the context of child safety. Additionally, small components of these devices can complicate diagnosis medical in case of swallowing.
  • Due to neodymium price, their price exceeds standard values,

Holding force characteristics

Maximum magnetic pulling force – what it depends on?

Holding force of 112.00 kg is a measurement result performed under specific, ideal conditions:
  • using a base made of low-carbon steel, serving as a magnetic yoke
  • whose thickness equals approx. 10 mm
  • characterized by even structure
  • with zero gap (no coatings)
  • during pulling in a direction perpendicular to the plane
  • in neutral thermal conditions

Determinants of lifting force in real conditions

During everyday use, the actual lifting capacity is determined by several key aspects, listed from crucial:
  • Air gap (between the magnet and the metal), because even a very small distance (e.g. 0.5 mm) can cause a reduction in force by up to 50% (this also applies to varnish, corrosion or dirt).
  • Pull-off angle – note that the magnet has greatest strength perpendicularly. Under shear forces, the holding force drops significantly, often to levels of 20-30% of the maximum value.
  • Base massiveness – too thin steel does not accept the full field, causing part of the flux to be lost to the other side.
  • Steel type – low-carbon steel attracts best. Higher carbon content reduce magnetic properties and holding force.
  • Surface finish – full contact is possible only on polished steel. Any scratches and bumps reduce the real contact area, weakening the magnet.
  • Heat – neodymium magnets have a sensitivity to temperature. When it is hot they are weaker, and in frost gain strength (up to a certain limit).

Holding force was measured on the plate surface of 20 mm thickness, when a perpendicular force was applied, in contrast under parallel forces the load capacity is reduced by as much as fivefold. In addition, even a slight gap between the magnet’s surface and the plate lowers the lifting capacity.

Warnings
Machining danger

Machining of NdFeB material poses a fire risk. Magnetic powder reacts violently with oxygen and is hard to extinguish.

Precision electronics

A powerful magnetic field interferes with the functioning of compasses in smartphones and navigation systems. Maintain magnets near a device to avoid damaging the sensors.

Heat sensitivity

Watch the temperature. Heating the magnet above 80 degrees Celsius will ruin its properties and strength.

Threat to electronics

Very strong magnetic fields can destroy records on credit cards, hard drives, and storage devices. Keep a distance of at least 10 cm.

Product not for children

These products are not toys. Accidental ingestion of multiple magnets can lead to them pinching intestinal walls, which poses a severe health hazard and necessitates urgent medical intervention.

Sensitization to coating

Nickel alert: The Ni-Cu-Ni coating consists of nickel. If skin irritation happens, immediately stop handling magnets and use protective gear.

Do not underestimate power

Handle magnets with awareness. Their huge power can surprise even experienced users. Stay alert and do not underestimate their power.

Hand protection

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

ICD Warning

People with a heart stimulator must maintain an absolute distance from magnets. The magnetism can stop the operation of the implant.

Protective goggles

Protect your eyes. Magnets can fracture upon violent connection, ejecting shards into the air. Wear goggles.

Danger! Details about risks in the article: Safety of working with magnets.