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UMH 48x11x65 [M6] / N38 - magnetic holder with hook

magnetic holder with hook

Catalog no 310430

GTIN/EAN: 5906301814597

5.00

Diameter Ø

48 mm [±1 mm]

Height

65 mm [±1 mm]

Height

11 mm [±1 mm]

Weight

145 g

Magnetization Direction

↑ axial

Load capacity

88.00 kg / 862.99 N

Coating

[NiCuNi] Nickel

view parameters »

68.88 ZŁ with VAT / pcs + price for transport

56.00 ZŁ net + 23% VAT / pcs

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Want to talk magnets?

Call us +48 22 499 98 98 alternatively get in touch via contact form through our site.
Specifications and shape of neodymium magnets can be analyzed using our power calculator.

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Technical - UMH 48x11x65 [M6] / N38 - magnetic holder with hook

Specification / characteristics - UMH 48x11x65 [M6] / N38 - magnetic holder with hook

properties
properties values
Cat. no. 310430
GTIN/EAN 5906301814597
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 48 mm [±1 mm]
Height 65 mm [±1 mm]
Height 11 mm [±1 mm]
Weight 145 g
Magnetization Direction ↑ axial
Load capacity ~ ? 88.00 kg / 862.99 N
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±1 mm

Magnetic properties of material N38

Specification / characteristics UMH 48x11x65 [M6] / 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 specification and ecology
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%
Environmental data
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: 310430-2026
Magnet Unit Converter
Force (pull)
Magnetic Field
Simply complete one field, and the converter compute the rest for you.

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Holders with a hook are indispensable in large-format stores and warehouses for suspending advertisements (POS systems). You can use them to organize wires, hang tools, or clothes on metal racks.
The tip is fully demountable - you can unscrew the hook and screw in a bolt, eyelet, or other element in its place. This gives huge application flexibility and allows adapting the holder to current needs.
The nominal capacity (e.g., 88.00 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).
Thanks to the metal cover, attraction force is concentrated, which significantly increases capacity compared to a bare magnet. Additionally, steel protects the brittle magnet from cracking upon hitting the ceiling or beam.
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.

Advantages and disadvantages of neodymium magnets.

Benefits

In addition to their magnetic efficiency, neodymium magnets provide the following advantages:
  • They have stable power, and over nearly 10 years their performance decreases symbolically – ~1% (in testing),
  • They retain their magnetic properties even under strong external field,
  • In other words, due to the reflective finish of silver, the element becomes visually attractive,
  • Magnetic induction on the working part of the magnet is very high,
  • Due to their durability and thermal resistance, neodymium magnets can operate (depending on the form) even at high temperatures reaching 230°C or more...
  • Thanks to the possibility of precise forming and customization to individualized requirements, magnetic components can be produced in a variety of shapes and sizes, which expands the range of possible applications,
  • Universal use in innovative solutions – they are used in data components, motor assemblies, medical equipment, as well as complex engineering applications.
  • Thanks to their power density, small magnets offer high operating force, in miniature format,

Cons

Disadvantages of NdFeB magnets:
  • Brittleness is one of their disadvantages. Upon intense impact they can break. We advise keeping them in a special holder, which not only secures them against impacts but also raises their durability
  • We warn that neodymium magnets can reduce their strength at high temperatures. To prevent this, we recommend our specialized [AH] magnets, which work effectively even at 230°C.
  • Due to the susceptibility of magnets to corrosion in a humid environment, we advise using waterproof magnets made of rubber, plastic or other material resistant to moisture, in case of application outdoors
  • Due to limitations in producing nuts and complicated forms in magnets, we recommend using a housing - magnetic mount.
  • Possible danger to health – tiny shards of magnets pose a threat, when accidentally swallowed, which gains importance in the aspect of protecting the youngest. Additionally, small elements of these products are able to complicate diagnosis medical when they are in the body.
  • Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications

Holding force characteristics

Maximum magnetic pulling force – what affects it?

The lifting capacity listed is a result of laboratory testing conducted under the following configuration:
  • on a block made of structural steel, effectively closing the magnetic flux
  • whose transverse dimension is min. 10 mm
  • with an ideally smooth touching surface
  • without the slightest insulating layer between the magnet and steel
  • during pulling in a direction vertical to the plane
  • at temperature approx. 20 degrees Celsius

Practical aspects of lifting capacity – factors

It is worth knowing that the working load may be lower influenced by elements below, starting with the most relevant:
  • Space between surfaces – every millimeter of separation (caused e.g. by veneer or dirt) significantly weakens the magnet efficiency, often by half at just 0.5 mm.
  • Loading method – catalog parameter refers to detachment vertically. When applying parallel force, the magnet exhibits much less (often approx. 20-30% of nominal force).
  • Base massiveness – too thin sheet causes magnetic saturation, causing part of the flux to be lost to the other side.
  • Material composition – not every steel attracts identically. High carbon content weaken the interaction with the magnet.
  • Surface structure – the smoother and more polished the plate, the better the adhesion and stronger the hold. Unevenness acts like micro-gaps.
  • Temperature – temperature increase results in weakening of induction. It is worth remembering the maximum operating temperature for a given model.

Lifting capacity was assessed using a polished steel plate of optimal thickness (min. 20 mm), under vertically applied force, whereas under parallel forces the holding force is lower. In addition, even a small distance between the magnet and the plate lowers the load capacity.

Safety rules for work with neodymium magnets
Permanent damage

Control the heat. Exposing the magnet above 80 degrees Celsius will destroy its magnetic structure and pulling force.

Bone fractures

Protect your hands. Two powerful magnets will join immediately with a force of massive weight, destroying everything in their path. Exercise extreme caution!

Danger to pacemakers

Medical warning: Neodymium magnets can turn off heart devices and defibrillators. Stay away if you have electronic implants.

Phone sensors

Navigation devices and smartphones are extremely sensitive to magnetism. Close proximity with a powerful NdFeB magnet can ruin the sensors in your phone.

Electronic devices

Very strong magnetic fields can erase data on credit cards, HDDs, and storage devices. Stay away of min. 10 cm.

Dust is flammable

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

Product not for children

Neodymium magnets are not intended for children. Eating multiple magnets can lead to them attracting across intestines, which constitutes a severe health hazard and necessitates urgent medical intervention.

Material brittleness

Despite the nickel coating, neodymium is delicate and not impact-resistant. Avoid impacts, as the magnet may shatter into hazardous fragments.

Sensitization to coating

Medical facts indicate that the nickel plating (standard magnet coating) is a strong allergen. If your skin reacts to metals, avoid direct skin contact or opt for coated magnets.

Handling guide

Be careful. Neodymium magnets act from a long distance and connect with massive power, often faster than you can react.

Important! Need more info? Read our article: Are neodymium magnets dangerous?