ZM XMAG2 105 elementów - magnetic toy
magnetic toy
Catalog no 040211
GTIN/EAN: 5906301812371
- Weight
- 0.03 g
49.20 zł with VAT / pcs + price for transport
40.00 zł net + 23% VAT / pcs
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Technical specification of the product - ZM XMAG2 105 elementów - magnetic toy
Specification / characteristics - ZM XMAG2 105 elementów - magnetic toy
| properties | values |
|---|---|
| Cat. no. | 040211 |
| GTIN/EAN | 5906301812371 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Weight | 0.03 g |
| Load capacity ~ ? | 0.03 kg / 0.26 N |
| Manufacturing Tolerance | ±1 mm |
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 |
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 |
Other proposals
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Strengths and weaknesses of rare earth magnets.
Pros
- Their strength remains stable, and after approximately ten years it drops only by ~1% (theoretically),
- Neodymium magnets remain highly resistant to loss of magnetic properties caused by external field sources,
- A magnet with a shiny gold surface is more attractive,
- They show high magnetic induction at the operating surface, which improves attraction properties,
- Thanks to resistance to high temperature, they are capable of working (depending on the shape) even at temperatures up to 230°C and higher...
- Considering the ability of accurate molding and customization to individualized needs, neodymium magnets can be created in a broad palette of shapes and sizes, which increases their versatility,
- Versatile presence in high-tech industry – they are commonly used in hard drives, electric motors, advanced medical instruments, as well as other advanced devices.
- Compactness – despite small sizes they provide effective action, making them ideal for precision applications
Weaknesses
- At strong impacts they can crack, therefore we advise placing them in strong housings. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
- We warn that neodymium magnets can lose their power at high temperatures. To prevent this, we advise our specialized [AH] magnets, which work effectively even at 230°C.
- Magnets exposed to a humid environment can rust. Therefore when using outdoors, we suggest using water-impermeable magnets made of rubber, plastic or other material resistant to moisture
- Due to limitations in realizing threads and complicated shapes in magnets, we recommend using casing - magnetic mount.
- Potential hazard to health – tiny shards of magnets can be dangerous, if swallowed, which is particularly important in the context of child safety. It is also worth noting that small components of these magnets are able to be problematic in diagnostics medical when they are in the body.
- Due to neodymium price, their price is relatively high,
Holding force characteristics
Best holding force of the magnet in ideal parameters – what contributes to it?
- on a base made of mild steel, perfectly concentrating the magnetic flux
- possessing a thickness of at least 10 mm to avoid saturation
- with a plane perfectly flat
- under conditions of gap-free contact (surface-to-surface)
- during pulling in a direction perpendicular to the plane
- at ambient temperature room level
What influences lifting capacity in practice
- Distance (betwixt the magnet and the plate), as even a tiny clearance (e.g. 0.5 mm) leads to a drastic drop in force by up to 50% (this also applies to varnish, rust or dirt).
- Pull-off angle – remember that the magnet holds strongest perpendicularly. Under shear forces, the capacity drops significantly, often to levels of 20-30% of the nominal value.
- Wall thickness – thin material does not allow full use of the magnet. Magnetic flux penetrates through instead of converting into lifting capacity.
- Chemical composition of the base – low-carbon steel attracts best. Alloy steels decrease magnetic properties and lifting capacity.
- Smoothness – full contact is possible only on smooth steel. Any scratches and bumps reduce the real contact area, reducing force.
- Thermal conditions – neodymium magnets have a sensitivity to temperature. When it is hot they lose power, and in frost they can be stronger (up to a certain limit).
Lifting capacity was determined with the use of a smooth steel plate of optimal thickness (min. 20 mm), under perpendicular detachment force, whereas under shearing force the holding force is lower. Moreover, even a slight gap between the magnet’s surface and the plate reduces the holding force.
H&S for magnets
Power loss in heat
Monitor thermal conditions. Heating the magnet to high heat will ruin its magnetic structure and pulling force.
Do not drill into magnets
Combustion risk: Neodymium dust is highly flammable. Do not process magnets in home conditions as this risks ignition.
Powerful field
Use magnets consciously. Their powerful strength can shock even experienced users. Be vigilant and respect their force.
Life threat
Individuals with a pacemaker have to keep an large gap from magnets. The magnetism can interfere with the functioning of the implant.
Choking Hazard
Strictly store magnets out of reach of children. Ingestion danger is high, and the effects of magnets clamping inside the body are life-threatening.
Skin irritation risks
Some people experience a contact allergy to Ni, which is the typical protective layer for neodymium magnets. Extended handling can result in skin redness. We suggest use protective gloves.
Protect data
Very strong magnetic fields can erase data on credit cards, HDDs, and storage devices. Maintain a gap of at least 10 cm.
Magnetic interference
Navigation devices and mobile phones are extremely susceptible to magnetic fields. Close proximity with a strong magnet can ruin the internal compass in your phone.
Shattering risk
NdFeB magnets are sintered ceramics, meaning they are very brittle. Clashing of two magnets will cause them breaking into shards.
Hand protection
Big blocks can crush fingers instantly. Never put your hand between two strong magnets.
Tabela kosztu i czasu dostawy
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