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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

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26.64 ZŁ with VAT / pcs + price for transport

21.66 ZŁ net + 23% VAT / pcs

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Carbon Footprint – environmental impact GPSR Regulation – product safety
Not sure which magnet to buy?

Contact us by phone +48 22 499 98 98 otherwise get in touch by means of contact form the contact form page.
Weight as well as structure of neodymium magnets can be analyzed using our magnetic mass calculator.

Same-day processing for orders placed before 14:00.

Technical - 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
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: 310428-2026
Measurement Calculator
Force (pull)
Magnetic Induction
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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 tip is fully demountable - you can unscrew the hook and screw in a bolt, eyelet, or other element in its place. Check the thread size in the product specification to select matching replacements.
The given value defines the maximum load when suspended under a thick, horizontal ceiling beam. 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. 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 and cons of neodymium magnets.

Benefits

In addition to their long-term stability, neodymium magnets provide the following advantages:
  • They virtually do not lose power, because even after ten years the performance loss is only ~1% (in laboratory conditions),
  • They possess excellent resistance to weakening of magnetic properties when exposed to external fields,
  • In other words, due to the reflective layer of nickel, the element looks attractive,
  • Magnets exhibit impressive magnetic induction on the working surface,
  • Through (adequate) combination of ingredients, they can achieve high thermal strength, allowing for functioning at temperatures reaching 230°C and above...
  • Possibility of detailed shaping and adjusting to individual applications,
  • Fundamental importance in future technologies – they find application in computer drives, electric motors, precision medical tools, also industrial machines.
  • Compactness – despite small sizes they generate large force, making them ideal for precision applications

Cons

Problematic aspects of neodymium magnets and proposals for their use:
  • To avoid cracks upon strong impacts, we recommend using special steel holders. Such a solution protects the magnet and simultaneously improves its durability.
  • We warn that neodymium magnets can reduce their strength at high temperatures. To prevent this, we advise our specialized [AH] magnets, which work effectively even at 230°C.
  • When exposed to humidity, magnets start to rust. To use them in conditions outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which secure oxidation and corrosion.
  • We suggest casing - magnetic mechanism, due to difficulties in realizing nuts inside the magnet and complex shapes.
  • Health risk related to microscopic parts of magnets can be dangerous, in case of ingestion, which is particularly important in the aspect of protecting the youngest. Furthermore, small components of these products are able to be problematic in diagnostics medical after entering the body.
  • Higher cost of purchase is one of the disadvantages compared to ceramic magnets, especially in budget applications

Lifting parameters

Best holding force of the magnet in ideal parameters – what affects it?

Magnet power was determined for ideal contact conditions, including:
  • using a plate made of mild steel, acting as a magnetic yoke
  • possessing a massiveness of min. 10 mm to ensure full flux closure
  • characterized by smoothness
  • without any air gap between the magnet and steel
  • for force acting at a right angle (pull-off, not shear)
  • at conditions approx. 20°C

Lifting capacity in practice – influencing factors

In practice, the actual holding force results from several key aspects, listed from most significant:
  • Distance (betwixt the magnet and the plate), because even a tiny distance (e.g. 0.5 mm) results in a reduction in lifting capacity by up to 50% (this also applies to paint, corrosion or debris).
  • Direction of force – maximum parameter is available only during perpendicular pulling. The force required to slide of the magnet along the plate is usually many times smaller (approx. 1/5 of the lifting capacity).
  • Substrate thickness – to utilize 100% power, the steel must be adequately massive. Thin sheet limits the lifting capacity (the magnet "punches through" it).
  • Plate material – mild steel gives the best results. Alloy steels reduce magnetic properties and lifting capacity.
  • Surface quality – the smoother and more polished the plate, the better the adhesion and stronger the hold. Unevenness acts like micro-gaps.
  • Thermal environment – heating the magnet results in weakening of force. It is worth remembering the thermal limit for a given model.

Holding force was checked on a smooth steel plate of 20 mm thickness, when a perpendicular force was applied, whereas under attempts to slide the magnet the lifting capacity is smaller. Moreover, even a minimal clearance between the magnet’s surface and the plate lowers the holding force.

Precautions when working with neodymium magnets
Choking Hazard

Adult use only. Small elements pose a choking risk, leading to intestinal necrosis. Store away from kids and pets.

Skin irritation risks

Some people have a sensitization to nickel, which is the standard coating for NdFeB magnets. Extended handling might lead to skin redness. We recommend use safety gloves.

Heat warning

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

Danger to pacemakers

Patients with a pacemaker must keep an safe separation from magnets. The magnetism can disrupt the operation of the life-saving device.

Impact on smartphones

Be aware: neodymium magnets generate a field that confuses precision electronics. Maintain a safe distance from your mobile, device, and navigation systems.

Combustion hazard

Fire hazard: Rare earth powder is highly flammable. Avoid machining magnets without safety gear as this risks ignition.

Caution required

Before starting, read the rules. Uncontrolled attraction can destroy the magnet or hurt your hand. Be predictive.

Beware of splinters

Beware of splinters. Magnets can fracture upon uncontrolled impact, launching shards into the air. Eye protection is mandatory.

Safe distance

Avoid bringing magnets close to a purse, laptop, or screen. The magnetism can irreversibly ruin these devices and wipe information from cards.

Crushing risk

Large magnets can break fingers instantly. Do not place your hand betwixt two attracting surfaces.

Danger! Looking for details? Read our article: Are neodymium magnets dangerous?