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AM ucho [M12] - magnetic accessories

magnetic accessories

Catalog no 080347

GTIN/EAN: 5906301812500

5.00

Weight

101.5 g

Load capacity

480.00 kg / 4707.19 N

product parameters »

9.84 ZŁ with VAT / pcs + price for transport

8.00 ZŁ net + 23% VAT / pcs

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Give us a call +48 22 499 98 98 or get in touch by means of contact form through our site.
Strength along with appearance of a magnet can be calculated on our our magnetic calculator.

Orders placed before 14:00 will be shipped the same business day.

Physical properties - AM ucho [M12] - magnetic accessories

Specification / characteristics - AM ucho [M12] - magnetic accessories

properties
properties values
Cat. no. 080347
GTIN/EAN 5906301812500
Production/Distribution Dhit sp. z o.o.
ul. Zielona 14 05-850 Ożarów Mazowiecki PL
Country of origin Poland / China / Germany
Customs code 85059029
Weight 101.5 g
Load capacity ~ ? 480.00 kg / 4707.19 N
Manufacturing Tolerance ±1 mm

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
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%
Ecology and recycling (GPSR)
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: 080347-2026
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Pulling force
Magnetic Induction
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In this category, we offer a wide selection of complementary elements for magnetic holders. We offer, among others: open and closed hooks, eyelet holders, steel plates (washers), and rubber anti-slip caps. These are essential elements to fully utilize the potential of neodymium magnets in practice.
Steel plates (washers) allow the use of magnets on non-magnetic surfaces. Mounting consists of gluing or screwing the washer to a non-magnetic substrate. This enables creating magnetic closures anywhere in the home and office.
Elements are standardized according to metric standard, facilitating selection. It is important to select a hook or screw with the same thread diameter as the socket in the magnet. We offer accessories made of galvanized or stainless steel, resistant to corrosion.
Covers made of thin rubber protect delicate surfaces from scratching by a metal magnet. Use them wherever direct metal contact could damage the surface. Surface safety comes at the cost of a small loss of nominal power.
Yes, as a direct importer, we serve both retail and wholesale customers. For larger orders, we offer attractive discounts and individual quotes. Most goods are available off-the-shelf in our warehouse, guaranteeing fast delivery.

Advantages as well as disadvantages of neodymium magnets.

Strengths

Besides their magnetic performance, neodymium magnets are valued for these benefits:
  • They do not lose strength, even during around ten years – the decrease in power is only ~1% (theoretically),
  • Magnets perfectly defend themselves against demagnetization caused by foreign field sources,
  • In other words, due to the aesthetic surface of gold, the element looks attractive,
  • Magnets are distinguished by impressive magnetic induction on the outer layer,
  • Due to their durability and thermal resistance, neodymium magnets can operate (depending on the shape) even at high temperatures reaching 230°C or more...
  • Considering the possibility of free shaping and customization to custom projects, NdFeB magnets can be created in a wide range of forms and dimensions, which increases their versatility,
  • Huge importance in modern industrial fields – they find application in data components, drive modules, medical devices, and complex engineering applications.
  • Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in small dimensions, which allows their use in miniature devices

Weaknesses

What to avoid - cons of neodymium magnets and proposals for their use:
  • To avoid cracks upon strong impacts, we recommend using special steel housings. Such a solution protects the magnet and simultaneously increases its durability.
  • 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 as well as dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are extremely 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 as well as corrosion.
  • Due to limitations in producing threads and complicated shapes in magnets, we recommend using cover - magnetic mount.
  • Possible danger resulting from small fragments of magnets pose a threat, when accidentally swallowed, which becomes key in the context of child safety. It is also worth noting that small components of these devices 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

Detachment force of the magnet in optimal conditions – what it depends on?

The lifting capacity listed is a measurement result performed under specific, ideal conditions:
  • on a base made of structural steel, effectively closing the magnetic field
  • possessing a thickness of min. 10 mm to avoid saturation
  • characterized by lack of roughness
  • without the slightest air gap between the magnet and steel
  • under vertical force vector (90-degree angle)
  • at temperature room level

Magnet lifting force in use – key factors

Holding efficiency is influenced by working environment parameters, including (from priority):
  • Distance – the presence of foreign body (paint, tape, gap) acts as an insulator, which lowers capacity rapidly (even by 50% at 0.5 mm).
  • Load vector – highest force is available only during pulling at a 90° angle. The resistance to sliding of the magnet along the surface is usually several times smaller (approx. 1/5 of the lifting capacity).
  • Substrate thickness – to utilize 100% power, the steel must be adequately massive. Thin sheet restricts the lifting capacity (the magnet "punches through" it).
  • Steel type – mild steel gives the best results. Alloy steels reduce magnetic properties and holding force.
  • Surface condition – ground elements ensure maximum contact, which improves force. Rough surfaces reduce efficiency.
  • Temperature influence – high temperature reduces pulling force. Too high temperature can permanently damage the magnet.

Lifting capacity was measured using a steel plate with a smooth surface of optimal thickness (min. 20 mm), under vertically applied force, however under shearing force the holding force is lower. In addition, even a small distance between the magnet and the plate lowers the lifting capacity.

Warnings
Do not drill into magnets

Dust generated during cutting of magnets is combustible. Do not drill into magnets without proper cooling and knowledge.

Metal Allergy

Some people have a contact allergy to Ni, which is the typical protective layer for NdFeB magnets. Frequent touching might lead to an allergic reaction. It is best to use safety gloves.

Conscious usage

Use magnets consciously. Their huge power can surprise even experienced users. Be vigilant and do not underestimate their force.

Cards and drives

Do not bring magnets near a wallet, laptop, or TV. The magnetism can permanently damage these devices and wipe information from cards.

Swallowing risk

Only for adults. Small elements pose a choking risk, leading to severe trauma. Store out of reach of children and animals.

Impact on smartphones

Remember: neodymium magnets generate a field that confuses precision electronics. Keep a separation from your mobile, tablet, and navigation systems.

Heat sensitivity

Standard neodymium magnets (N-type) undergo demagnetization when the temperature surpasses 80°C. The loss of strength is permanent.

Fragile material

Watch out for shards. Magnets can fracture upon violent connection, launching shards into the air. Eye protection is mandatory.

Bodily injuries

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

Implant safety

For implant holders: Powerful magnets disrupt medical devices. Maintain minimum 30 cm distance or request help to handle the magnets.

Important! More info about risks in the article: Magnet Safety Guide.