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WM 34.5x24.3x17 / N38 - magnetic hanger

magnetic hanger

Catalog no 240215

GTIN/EAN: 5906301814382

5.00
length
34.5 mm [±1 mm]
Width
24.3 mm [±1 mm]
Height
17 mm [±1 mm]
Weight
9 g
Coating
[NiCuNi] Nickel
product parameters »

4.99 zł with VAT / pcs + price for transport

4.06 zł net + 23% VAT / pcs

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Contact us by phone +48 888 99 98 98 otherwise contact us by means of our online form our website.
Specifications along with form of neodymium magnets can be verified using our modular calculator.

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Technical data of the product - WM 34.5x24.3x17 / N38 - magnetic hanger

Specification / characteristics - WM 34.5x24.3x17 / N38 - magnetic hanger

properties
properties values
Cat. no. 240215
GTIN/EAN 5906301814382
Production/Distribution Dhit sp. z o.o.
ul. Zielona 14 05-850 Ożarów Mazowiecki PL
Country of origin Poland / China / Germany
Customs code 85059029
length 34.5 mm [±1 mm]
Width 24.3 mm [±1 mm]
Height 17 mm [±1 mm]
Weight 9 g
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±1 mm

Magnetic properties of material N38

Specification / characteristics WM 34.5x24.3x17 / N38 - magnetic hanger
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

Material specification

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: 240215-2026
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It is a mobile holder that you can move to another place at any time without a trace. It is great for hanging light tools, holiday decorations, kitchen utensils, or an apron.
Holding force depends on the model (check capacity parameter), but our hangers are designed not to slide under load. It is worth remembering that on a vertical, slippery surface (e.g., fridge) the force is lower due to lack of friction (the holder may slide).
A rotatable hanger adjusts to the load direction, preventing magnet detachment. We offer aesthetic hooks in plastic housing (colorful) or elegant metal (chrome/nickel). Check product photos to see the hook type in this specific model.
Most of our home hangers have a smooth, nickel-plated base. If you care about protecting the surface from scratching, choose a model with a rubberized base or pad.
In the bathroom or kitchen, they will work perfectly, provided they are not directly splashed with water. If you are looking for an outdoor hanger, choose a model in rubberized or plastic housing, which is tight.

Pros as well as cons of Nd2Fe14B magnets.

Benefits

Besides their magnetic performance, neodymium magnets are valued for these benefits:
  • They retain attractive force for almost 10 years – the drop is just ~1% (based on simulations),
  • They maintain their magnetic properties even under strong external field,
  • By covering with a smooth coating of gold, the element has an aesthetic look,
  • Neodymium magnets achieve maximum magnetic induction on a their surface, which ensures high operational effectiveness,
  • Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and are able to act (depending on the form) even at a temperature of 230°C or more...
  • Thanks to the potential of free shaping and adaptation to individualized needs, neodymium magnets can be created in a wide range of geometric configurations, which increases their versatility,
  • Key role in electronics industry – they are commonly used in data components, electric drive systems, diagnostic systems, and multitasking production systems.
  • Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications

Disadvantages

Cons of neodymium magnets: weaknesses and usage proposals
  • To avoid cracks upon strong impacts, we recommend using special steel holders. Such a solution secures the magnet and simultaneously improves its durability.
  • Neodymium magnets lose their strength under the influence of heating. As soon as 80°C is exceeded, many of them start losing their power. Therefore, we recommend our special magnets marked [AH], which maintain stability even at temperatures up to 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 stable to moisture, when using outdoors
  • Limited ability of producing nuts in the magnet and complicated forms - recommended is a housing - magnetic holder.
  • Health risk to health – tiny shards of magnets can be dangerous, if swallowed, which gains importance in the aspect of protecting the youngest. It is also worth noting that tiny parts 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

Lifting parameters

Maximum magnetic pulling force – what contributes to it?

Magnet power was determined for ideal contact conditions, assuming:
  • with the use of a yoke made of special test steel, ensuring full magnetic saturation
  • whose thickness is min. 10 mm
  • with an ideally smooth touching surface
  • without any insulating layer between the magnet and steel
  • for force acting at a right angle (pull-off, not shear)
  • at temperature approx. 20 degrees Celsius

What influences lifting capacity in practice

Holding efficiency impacted by specific conditions, including (from priority):
  • Gap (betwixt the magnet and the plate), since even a tiny clearance (e.g. 0.5 mm) results in a reduction in lifting capacity by up to 50% (this also applies to paint, corrosion or dirt).
  • Force direction – catalog parameter refers to pulling vertically. When slipping, the magnet holds much less (often approx. 20-30% of nominal force).
  • Substrate thickness – for full efficiency, the steel must be adequately massive. Paper-thin metal limits the attraction force (the magnet "punches through" it).
  • Material type – ideal substrate is pure iron steel. Hardened steels may generate lower lifting capacity.
  • Surface structure – the more even the surface, the larger the contact zone and higher the lifting capacity. Unevenness acts like micro-gaps.
  • Temperature influence – hot environment weakens pulling force. Exceeding the limit temperature can permanently demagnetize the magnet.

Lifting capacity was measured with the use of a polished steel plate of optimal thickness (min. 20 mm), under perpendicular detachment force, however under parallel forces the lifting capacity is smaller. In addition, even a minimal clearance between the magnet’s surface and the plate reduces the lifting capacity.

H&S for magnets
Bone fractures

Pinching hazard: The pulling power is so great that it can result in blood blisters, crushing, and broken bones. Protective gloves are recommended.

Dust explosion hazard

Dust produced during machining of magnets is flammable. Avoid drilling into magnets unless you are an expert.

Protective goggles

Neodymium magnets are ceramic materials, which means they are fragile like glass. Clashing of two magnets will cause them shattering into shards.

Keep away from computers

Data protection: Strong magnets can ruin data carriers and sensitive devices (heart implants, hearing aids, timepieces).

Pacemakers

People with a pacemaker have to keep an absolute distance from magnets. The magnetism can stop the operation of the life-saving device.

Demagnetization risk

Do not overheat. Neodymium magnets are sensitive to heat. If you need operation above 80°C, look for special high-temperature series (H, SH, UH).

Swallowing risk

Adult use only. Tiny parts pose a choking risk, leading to intestinal necrosis. Store out of reach of children and animals.

Skin irritation risks

Certain individuals suffer from a sensitization to Ni, which is the common plating for neodymium magnets. Frequent touching may cause dermatitis. It is best to wear protective gloves.

Caution required

Before use, read the rules. Sudden snapping can destroy the magnet or hurt your hand. Think ahead.

Magnetic interference

A strong magnetic field interferes with the functioning of magnetometers in smartphones and GPS navigation. Keep magnets near a device to prevent damaging the sensors.

Warning! More info about hazards in the article: Safety of working with magnets.