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UMH 36x8x46 [M6] / N38 - magnetic holder with hook

magnetic holder with hook

Catalog no 310428

GTIN/EAN: 5906301814573

5.00

Diameter Ø

36 mm [±1 mm]

Height

46 mm [±1 mm]

Height

8 mm [±1 mm]

Weight

65 g

Magnetization Direction

↑ axial

Load capacity

43.00 kg / 421.69 N

Coating

[NiCuNi] Nickel

technical specifications »

26.64 ZŁ with VAT / pcs + price for transport

21.66 ZŁ net + 23% VAT / pcs

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Technical data of the product - UMH 36x8x46 [M6] / N38 - magnetic holder with hook

Specification / characteristics - UMH 36x8x46 [M6] / N38 - magnetic holder with hook

properties
properties values
Cat. no. 310428
GTIN/EAN 5906301814573
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 36 mm [±1 mm]
Height 46 mm [±1 mm]
Height 8 mm [±1 mm]
Weight 65 g
Magnetization Direction ↑ axial
Load capacity ~ ? 43.00 kg / 421.69 N
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±1 mm

Magnetic properties of material N38

Specification / characteristics UMH 36x8x46 [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
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%
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: 310428-2026
Measurement Calculator
Force (pull)
Magnetic Induction
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They serve to create mobile suspension points without the need to drill holes in beams. It is a universal hanger that you can move to another place at any time without a trace.
The tip is fully demountable - you can unscrew the hook and screw in a bolt, eyelet, or other element in its place. Thanks to this, one magnet can perform many functions - sometimes be a hook, and sometimes a holder for a bolt.
The given value defines the maximum load when suspended under a thick, horizontal ceiling beam. If you hang the magnet on a wall, the real capacity is approx. 20-30% of the nominal value.
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.
Standard holders are coated with a layer of nickel or zinc, which protects them from corrosion indoors. In home and office conditions, they will serve for many years without signs of wear.

Pros as well as cons of neodymium magnets.

Benefits

Besides their high retention, neodymium magnets are valued for these benefits:
  • Their power is maintained, and after around ten years it decreases only by ~1% (according to research),
  • Neodymium magnets are distinguished by highly resistant to magnetic field loss caused by external magnetic fields,
  • In other words, due to the glossy finish of nickel, the element is aesthetically pleasing,
  • They are known for high magnetic induction at the operating surface, making them more effective,
  • 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 modularity in forming and the ability to customize to unusual requirements,
  • Fundamental importance in modern industrial fields – they are commonly used in data components, electric motors, medical devices, and technologically advanced constructions.
  • Relatively small size with high pulling force – neodymium magnets offer high power in compact dimensions, which makes them useful in small systems

Disadvantages

Drawbacks and weaknesses of neodymium magnets: tips and applications.
  • They are fragile upon heavy impacts. To avoid cracks, it is worth securing magnets in special housings. Such protection not only protects the magnet but also increases its resistance to damage
  • NdFeB magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of strength (a factor is the shape and 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
  • When exposed to humidity, magnets usually rust. For applications outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which secure oxidation and corrosion.
  • Due to limitations in producing nuts and complex forms in magnets, we propose using casing - magnetic holder.
  • Potential hazard resulting from small fragments of magnets pose a threat, in case of ingestion, which is particularly important in the context of child health protection. Furthermore, small elements of these products are able to disrupt the diagnostic process medical when they are in the body.
  • Due to complex production process, their price exceeds standard values,

Pull force analysis

Maximum lifting force for a neodymium magnet – what affects it?

Magnet power was determined for the most favorable conditions, assuming:
  • on a plate made of structural steel, optimally conducting the magnetic flux
  • possessing a thickness of minimum 10 mm to avoid saturation
  • characterized by smoothness
  • without any clearance between the magnet and steel
  • for force applied at a right angle (pull-off, not shear)
  • at conditions approx. 20°C

What influences lifting capacity in practice

In real-world applications, the actual lifting capacity depends on a number of factors, presented from the most important:
  • Distance – existence of foreign body (paint, dirt, air) interrupts the magnetic circuit, which lowers power rapidly (even by 50% at 0.5 mm).
  • Force direction – remember that the magnet holds strongest perpendicularly. Under sliding down, the holding force drops drastically, often to levels of 20-30% of the nominal value.
  • Steel thickness – insufficiently thick plate causes magnetic saturation, causing part of the power to be wasted to the other side.
  • Material type – ideal substrate is high-permeability steel. Hardened steels may attract less.
  • Base smoothness – the more even the plate, the larger the contact zone and higher the lifting capacity. Roughness acts like micro-gaps.
  • Thermal environment – temperature increase causes a temporary drop of force. It is worth remembering the maximum operating temperature for a given model.

Lifting capacity testing was carried out on a smooth plate of optimal thickness, under a perpendicular pulling force, whereas under parallel forces the lifting capacity is smaller. Additionally, even a slight gap between the magnet’s surface and the plate decreases the holding force.

Safe handling of NdFeB magnets
Electronic hazard

Data protection: Neodymium magnets can ruin data carriers and delicate electronics (pacemakers, medical aids, timepieces).

Operating temperature

Regular neodymium magnets (grade N) lose power when the temperature goes above 80°C. This process is irreversible.

Protective goggles

Despite the nickel coating, neodymium is brittle and cannot withstand shocks. Avoid impacts, as the magnet may shatter into sharp, dangerous pieces.

Respect the power

Before use, check safety instructions. Sudden snapping can break the magnet or injure your hand. Be predictive.

Bodily injuries

Mind your fingers. Two powerful magnets will snap together immediately with a force of several hundred kilograms, crushing anything in their path. Exercise extreme caution!

Implant safety

Warning for patients: Powerful magnets disrupt electronics. Maintain at least 30 cm distance or ask another person to work with the magnets.

Keep away from electronics

GPS units and mobile phones are extremely susceptible to magnetism. Direct contact with a strong magnet can ruin the sensors in your phone.

Avoid contact if allergic

Warning for allergy sufferers: The nickel-copper-nickel coating contains nickel. If skin irritation appears, immediately stop working with magnets and wear gloves.

Danger to the youngest

Strictly keep magnets out of reach of children. Ingestion danger is significant, and the effects of magnets connecting inside the body are life-threatening.

Machining danger

Combustion risk: Neodymium dust is highly flammable. Do not process magnets without safety gear as this risks ignition.

Safety First! Details about hazards in the article: Magnet Safety Guide.