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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

9.84 with VAT / pcs + price for transport

8.00 ZŁ net + 23% VAT / pcs

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Force and shape of a magnet can be tested with our force calculator.

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Technical parameters of the product - 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 and environmental data
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%
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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Magnet pull force

Field Strength

Other offers

This category contains replaceable tips, adapters, and fasteners for magnets. We offer, among others: various types of hooks, eyelet holders, mounting plates for magnets, and rubber anti-slip caps. These are essential elements to fully utilize the potential of neodymium magnets in practice.
Thanks to steel plates, you can create a magnetic point on wood, plastic, glass, or wall. Just stick the plate in the chosen place using strong 3M tape (often included). This enables creating magnetic closures anywhere in the home and office.
Tips fit sockets with thread M3, M4, M5, M6, M8, M10, M12, etc. 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.
Rubber caps perform a protective function (against scratches) and anti-slip. Use them wherever direct metal contact could damage the surface. Surface safety comes at the cost of a small loss of nominal power.
We supply manufacturing companies, advertising agencies, and workshops with necessary mounting accessories. 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.

Strengths and weaknesses of rare earth magnets.

Benefits

Besides their tremendous strength, neodymium magnets offer the following advantages:
  • They virtually do not lose power, because even after 10 years the performance loss is only ~1% (in laboratory conditions),
  • Neodymium magnets are remarkably resistant to demagnetization caused by external magnetic fields,
  • The use of an refined coating of noble metals (nickel, gold, silver) causes the element to look better,
  • Neodymium magnets create maximum magnetic induction on a contact point, which ensures high operational effectiveness,
  • Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and can function (depending on the form) even at a temperature of 230°C or more...
  • Thanks to freedom in shaping and the capacity to adapt to individual projects,
  • Wide application in future technologies – they are used in data components, motor assemblies, advanced medical instruments, also multitasking production systems.
  • Relatively small size with high pulling force – neodymium magnets offer high power in tiny dimensions, which makes them useful in miniature devices

Disadvantages

Disadvantages of neodymium magnets:
  • To avoid cracks under impact, we suggest using special steel holders. Such a solution protects the magnet and simultaneously increases its durability.
  • Neodymium magnets lose their force under the influence of heating. As soon as 80°C is exceeded, many of them start losing their force. Therefore, we recommend our special magnets marked [AH], which maintain stability even at temperatures up to 230°C
  • Magnets exposed to a humid environment can corrode. Therefore while using outdoors, we suggest using waterproof magnets made of rubber, plastic or other material protecting against moisture
  • Due to limitations in realizing threads and complex forms in magnets, we recommend using casing - magnetic mount.
  • Health risk resulting from small fragments of magnets can be dangerous, in case of ingestion, which becomes key in the aspect of protecting the youngest. It is also worth noting that small elements of these devices are able to disrupt the diagnostic process medical when they are in the body.
  • With budget limitations the cost of neodymium magnets is economically unviable,

Pull force analysis

Optimal lifting capacity of a neodymium magnetwhat contributes to it?

The load parameter shown represents the maximum value, measured under optimal environment, meaning:
  • using a sheet made of high-permeability steel, serving as a ideal flux conductor
  • possessing a massiveness of min. 10 mm to avoid saturation
  • with an polished touching surface
  • under conditions of no distance (surface-to-surface)
  • under axial application of breakaway force (90-degree angle)
  • in stable room temperature

Impact of factors on magnetic holding capacity in practice

During everyday use, the actual holding force results from many variables, ranked from crucial:
  • Space between surfaces – every millimeter of separation (caused e.g. by varnish or dirt) drastically reduces the pulling force, often by half at just 0.5 mm.
  • Angle of force application – maximum parameter is available only during perpendicular pulling. The force required to slide of the magnet along the surface is usually several times smaller (approx. 1/5 of the lifting capacity).
  • Element thickness – for full efficiency, the steel must be sufficiently thick. Thin sheet restricts the attraction force (the magnet "punches through" it).
  • Steel grade – ideal substrate is high-permeability steel. Cast iron may have worse magnetic properties.
  • Surface quality – the smoother and more polished the plate, the larger the contact zone and stronger the hold. Roughness creates an air distance.
  • Thermal conditions – neodymium magnets have a sensitivity to temperature. When it is hot they lose power, and in frost gain strength (up to a certain limit).

Lifting capacity testing was carried out on plates with a smooth surface of optimal thickness, under a perpendicular pulling force, whereas under attempts to slide the magnet the holding force is lower. Additionally, even a minimal clearance between the magnet and the plate decreases the load capacity.

Warnings
Medical implants

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

Avoid contact if allergic

It is widely known that the nickel plating (standard magnet coating) is a strong allergen. For allergy sufferers, avoid touching magnets with bare hands or select encased magnets.

Fragile material

Despite the nickel coating, the material is delicate and cannot withstand shocks. Avoid impacts, as the magnet may crumble into hazardous fragments.

Machining danger

Dust generated during cutting of magnets is self-igniting. Avoid drilling into magnets without proper cooling and knowledge.

Demagnetization risk

Watch the temperature. Heating the magnet to high heat will destroy its magnetic structure and strength.

Handling rules

Exercise caution. Rare earth magnets act from a long distance and snap with massive power, often quicker than you can react.

Magnetic interference

An intense magnetic field interferes with the operation of magnetometers in phones and GPS navigation. Keep magnets near a device to avoid breaking the sensors.

Finger safety

Big blocks can smash fingers in a fraction of a second. Never put your hand betwixt two strong magnets.

Keep away from computers

Avoid bringing magnets near a wallet, laptop, or TV. The magnetic field can irreversibly ruin these devices and wipe information from cards.

Keep away from children

Strictly store magnets out of reach of children. Ingestion danger is high, and the consequences of magnets connecting inside the body are very dangerous.

Safety First! Need more info? Read our article: Are neodymium magnets dangerous?