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UMH 32x8x46 [M6] / N38 - magnetic holder with hook

magnetic holder with hook

Catalog no 310427

GTIN/EAN: 5906301814566

Diameter Ø

32 mm [±1 mm]

Height

46 mm [±1 mm]

Height

8 mm [±1 mm]

Weight

53 g

Magnetization Direction

↑ axial

Load capacity

38.00 kg / 372.65 N

Coating

[NiCuNi] Nickel

see properties »

22.14 ZŁ with VAT / pcs + price for transport

18.00 ZŁ net + 23% VAT / pcs

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Technical details - UMH 32x8x46 [M6] / N38 - magnetic holder with hook

Specification / characteristics - UMH 32x8x46 [M6] / N38 - magnetic holder with hook

properties
properties values
Cat. no. 310427
GTIN/EAN 5906301814566
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 32 mm [±1 mm]
Height 46 mm [±1 mm]
Height 8 mm [±1 mm]
Weight 53 g
Magnetization Direction ↑ axial
Load capacity ~ ? 38.00 kg / 372.65 N
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±1 mm

Magnetic properties of material N38

Specification / characteristics UMH 32x8x46 [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
Chemical composition
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: 310427-2026
Magnet Unit Converter
Pulling force
Magnetic Induction
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Holders with a hook are indispensable in large-format stores and warehouses for suspending advertisements (POS systems). In workshops and garages, they work perfectly for guiding cables or hanging work lighting.
Yes, the hook is an element screwed into a bushing with a metric thread (e.g., M4, M5, M6 - check description). Check the thread size in the product specification to select matching replacements.
The nominal capacity (e.g., 38.00 kg) refers to perpendicular (vertical) force when mounted on the ceiling. If you hang the magnet on a wall, the real capacity is approx. 20-30% of the nominal value.
The cup acts as a magnetic armature, intensifying the neodymium action and increasing efficiency. 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.

Pros as well as cons of Nd2Fe14B magnets.

Benefits

Apart from their notable magnetic energy, neodymium magnets have these key benefits:
  • They virtually do not lose strength, because even after ten years the performance loss is only ~1% (according to literature),
  • They are noted for resistance to demagnetization induced by external disturbances,
  • In other words, due to the metallic layer of silver, the element becomes visually attractive,
  • Neodymium magnets deliver maximum magnetic induction on a their surface, which increases force concentration,
  • Thanks to resistance to high temperature, they are capable of working (depending on the shape) even at temperatures up to 230°C and higher...
  • In view of the ability of free shaping and customization to specialized needs, NdFeB magnets can be created in a broad palette of shapes and sizes, which amplifies use scope,
  • Universal use in modern technologies – they serve a role in data components, electric motors, precision medical tools, also multitasking production systems.
  • Thanks to their power density, small magnets offer high operating force, with minimal size,

Cons

Disadvantages of NdFeB magnets:
  • At very strong impacts they can crack, therefore we recommend placing them in strong housings. 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
  • Due to the susceptibility of magnets to corrosion in a humid environment, we recommend using waterproof magnets made of rubber, plastic or other material stable to moisture, in case of application outdoors
  • Due to limitations in creating threads and complex forms in magnets, we propose using cover - magnetic mechanism.
  • Health risk to health – tiny shards of magnets are risky, in case of ingestion, which gains importance in the context of child safety. Furthermore, small elements of these devices are able to complicate diagnosis medical after entering the body.
  • With budget limitations the cost of neodymium magnets is a challenge,

Holding force characteristics

Optimal lifting capacity of a neodymium magnet – what affects it?

Information about lifting capacity was defined for ideal contact conditions, taking into account:
  • using a sheet made of mild steel, acting as a ideal flux conductor
  • whose thickness reaches at least 10 mm
  • characterized by smoothness
  • without the slightest clearance between the magnet and steel
  • for force applied at a right angle (in the magnet axis)
  • in stable room temperature

Practical lifting capacity: influencing factors

Holding efficiency is affected 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 reduction in force by up to 50% (this also applies to varnish, corrosion or dirt).
  • Load vector – highest force is reached only during perpendicular pulling. The resistance to sliding of the magnet along the plate is usually several times lower (approx. 1/5 of the lifting capacity).
  • Metal thickness – thin material does not allow full use of the magnet. Part of the magnetic field passes through the material instead of generating force.
  • Steel grade – ideal substrate is high-permeability steel. Cast iron may attract less.
  • Smoothness – full contact is obtained only on polished steel. Rough texture create air cushions, weakening the magnet.
  • Thermal environment – temperature increase results in weakening of induction. It is worth remembering the maximum operating temperature for a given model.

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

H&S for magnets
Do not underestimate power

Before use, check safety instructions. Uncontrolled attraction can break the magnet or hurt your hand. Think ahead.

Swallowing risk

Product intended for adults. Small elements pose a choking risk, causing serious injuries. Store out of reach of kids and pets.

Data carriers

Intense magnetic fields can destroy records on payment cards, HDDs, and storage devices. Keep a distance of min. 10 cm.

Fire warning

Machining of neodymium magnets carries a risk of fire hazard. Neodymium dust oxidizes rapidly with oxygen and is difficult to extinguish.

Medical interference

Individuals with a heart stimulator should maintain an large gap from magnets. The magnetic field can disrupt the operation of the life-saving device.

Precision electronics

Note: neodymium magnets produce a field that interferes with sensitive sensors. Maintain a safe distance from your mobile, device, and navigation systems.

Allergy Warning

A percentage of the population suffer from a contact allergy to nickel, which is the standard coating for neodymium magnets. Prolonged contact may cause dermatitis. We recommend wear protective gloves.

Crushing force

Danger of trauma: The pulling power is so immense that it can result in blood blisters, pinching, and even bone fractures. Use thick gloves.

Shattering risk

Beware of splinters. Magnets can explode upon violent connection, ejecting shards into the air. Eye protection is mandatory.

Power loss in heat

Monitor thermal conditions. Heating the magnet to high heat will destroy its properties and pulling force.

Important! Want to know more? Check our post: Are neodymium magnets dangerous?
Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98