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AM ucho [M10] - magnetic accessories

magnetic accessories

Catalog no 080346

GTIN/EAN: 5906301812494

5.00

Weight

71.5 g

Load capacity

320.00 kg / 3138.13 N

technical specifications »

7.38 ZŁ with VAT / pcs + price for transport

6.00 ZŁ net + 23% VAT / pcs

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Technical parameters - AM ucho [M10] - magnetic accessories

Specification / characteristics - AM ucho [M10] - magnetic accessories

properties
properties values
Cat. no. 080346
GTIN/EAN 5906301812494
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 71.5 g
Load capacity ~ ? 320.00 kg / 3138.13 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
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%
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: 080346-2026
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Magnet pull force
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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, eye bolts (shackles), steel plates (washers), and rubber anti-slip caps. Thanks to these additions, you can adapt any magnetic holder to your individual needs.
The plate serves as a base (armature) to which the magnet will attach. Mounting consists of gluing or screwing the washer to a non-magnetic substrate. This enables creating magnetic closures anywhere in the home and office.
Our accessories are compatible with holders having standard metric threads (ISO). It is important to select a hook or screw with the same thread diameter as the socket in the magnet. Most elements are protected against rust by galvanic zinc.
Covers made of thin rubber protect delicate surfaces from scratching by a metal magnet. Use them wherever direct metal contact could damage the surface. An additional layer of rubber weakens attraction slightly but drastically increases shear force (sliding resistance).
Yes, as a direct importer, we serve both retail and wholesale customers. For B2B clients, we have special trade conditions and deferred payment terms. Most goods are available off-the-shelf in our warehouse, guaranteeing fast delivery.

Pros and cons of Nd2Fe14B magnets.

Benefits

Apart from their superior magnetic energy, neodymium magnets have these key benefits:
  • Their power is maintained, and after around ten years it decreases only by ~1% (theoretically),
  • Magnets very well defend themselves against demagnetization caused by foreign field sources,
  • A magnet with a smooth nickel surface has better aesthetics,
  • Neodymium magnets ensure maximum magnetic induction on a their surface, which allows for strong attraction,
  • Thanks to resistance to high temperature, they are capable of working (depending on the form) even at temperatures up to 230°C and higher...
  • Possibility of accurate forming and adapting to atypical applications,
  • Key role in advanced technology sectors – they are commonly used in HDD drives, motor assemblies, diagnostic systems, and other advanced devices.
  • Compactness – despite small sizes they provide effective action, making them ideal for precision applications

Weaknesses

What to avoid - cons of neodymium magnets and proposals for their use:
  • To avoid cracks under impact, we recommend using special steel housings. Such a solution secures the magnet and simultaneously improves its durability.
  • NdFeB magnets lose strength when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop 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 extremely resistant to heat
  • Due to the susceptibility of magnets to corrosion in a humid environment, we suggest using waterproof magnets made of rubber, plastic or other material immune to moisture, when using outdoors
  • We suggest a housing - magnetic mechanism, due to difficulties in realizing nuts inside the magnet and complex forms.
  • Potential hazard to health – tiny shards of magnets can be dangerous, if swallowed, which is particularly important in the context of child health protection. It is also worth noting that small components of these magnets can complicate diagnosis medical after entering the body.
  • Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications

Holding force characteristics

Maximum magnetic pulling force – what contributes to it?

Magnet power was defined for optimal configuration, taking into account:
  • using a base made of low-carbon steel, acting as a magnetic yoke
  • whose transverse dimension equals approx. 10 mm
  • with a surface perfectly flat
  • without the slightest air gap between the magnet and steel
  • under perpendicular force vector (90-degree angle)
  • at standard ambient temperature

Determinants of lifting force in real conditions

Bear in mind that the application force will differ influenced by the following factors, starting with the most relevant:
  • Distance – the presence of any layer (paint, dirt, air) acts as an insulator, which reduces capacity rapidly (even by 50% at 0.5 mm).
  • Pull-off angle – note that the magnet has greatest strength perpendicularly. Under shear forces, the capacity drops drastically, often to levels of 20-30% of the maximum value.
  • Steel thickness – too thin plate does not close the flux, causing part of the flux to be wasted into the air.
  • Material composition – different alloys reacts the same. High carbon content worsen the interaction with the magnet.
  • Surface condition – ground elements guarantee perfect abutment, which increases field saturation. Rough surfaces reduce efficiency.
  • Heat – neodymium magnets have a negative temperature coefficient. At higher temperatures they lose power, and in frost gain strength (up to a certain limit).

Holding force was measured on the plate surface of 20 mm thickness, when a perpendicular force was applied, however under shearing force the holding force is lower. In addition, even a minimal clearance between the magnet’s surface and the plate lowers the holding force.

H&S for magnets
Fragile material

Watch out for shards. Magnets can explode upon violent connection, ejecting shards into the air. Wear goggles.

Safe operation

Exercise caution. Rare earth magnets attract from a long distance and snap with huge force, often faster than you can react.

Allergic reactions

Nickel alert: The nickel-copper-nickel coating consists of nickel. If skin irritation occurs, immediately stop handling magnets and wear gloves.

Fire warning

Powder generated during cutting of magnets is self-igniting. Do not drill into magnets without proper cooling and knowledge.

Medical interference

Life threat: Neodymium magnets can turn off heart devices and defibrillators. Stay away if you have medical devices.

Precision electronics

A powerful magnetic field interferes with the operation of magnetometers in smartphones and navigation systems. Maintain magnets close to a device to prevent damaging the sensors.

Crushing risk

Big blocks can break fingers in a fraction of a second. Under no circumstances put your hand between two attracting surfaces.

Swallowing risk

Always store magnets out of reach of children. Choking hazard is high, and the consequences of magnets connecting inside the body are very dangerous.

Electronic devices

Data protection: Strong magnets can damage payment cards and sensitive devices (pacemakers, hearing aids, timepieces).

Demagnetization risk

Standard neodymium magnets (N-type) undergo demagnetization when the temperature goes above 80°C. Damage is permanent.

Safety First! Looking for details? Check our post: Why are neodymium magnets dangerous?