ZM XMAG2 210 elementów - magnetic toy
magnetic toy
Catalog no 040314
GTIN/EAN: 5906301812388
Weight
0.03 g
Load capacity
0.03 kg / 0.26 N
86.10 ZŁ with VAT / pcs + price for transport
70.00 ZŁ net + 23% VAT / pcs
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Technical data - ZM XMAG2 210 elementów - magnetic toy
Specification / characteristics - ZM XMAG2 210 elementów - magnetic toy
| properties | values |
|---|---|
| Cat. no. | 040314 |
| GTIN/EAN | 5906301812388 |
| 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 |
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% |
Environmental data
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
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Advantages and disadvantages of Nd2Fe14B magnets.
Strengths
- They virtually do not lose strength, because even after ten years the decline in efficiency is only ~1% (in laboratory conditions),
- Magnets perfectly defend themselves against demagnetization caused by external fields,
- The use of an shiny finish of noble metals (nickel, gold, silver) causes the element to have aesthetics,
- The surface of neodymium magnets generates a strong magnetic field – this is one of their assets,
- Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and can work (depending on the shape) even at a temperature of 230°C or more...
- Considering the option of free shaping and customization to specialized solutions, magnetic components can be produced in a wide range of forms and dimensions, which increases their versatility,
- Huge importance in innovative solutions – they serve a role in data components, electromotive mechanisms, medical devices, and technologically advanced constructions.
- Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications
Weaknesses
- To avoid cracks under impact, 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 drop of strength (a factor is the shape and dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are very resistant to heat
- Due to the susceptibility of magnets to corrosion in a humid environment, we advise using waterproof magnets made of rubber, plastic or other material resistant to moisture, in case of application outdoors
- Limited ability of making threads in the magnet and complicated forms - recommended is casing - magnet mounting.
- Possible danger to health – tiny shards of magnets can be dangerous, if swallowed, which becomes key in the context of child safety. Furthermore, small elements of these devices are able to complicate diagnosis medical in case of swallowing.
- Due to neodymium price, their price is higher than average,
Pull force analysis
Maximum lifting capacity of the magnet – what it depends on?
- using a base made of high-permeability steel, acting as a magnetic yoke
- possessing a massiveness of min. 10 mm to avoid saturation
- with a plane free of scratches
- with direct contact (no impurities)
- under vertical force vector (90-degree angle)
- at room temperature
Impact of factors on magnetic holding capacity in practice
- Distance – the presence of any layer (paint, dirt, gap) acts as an insulator, which lowers power steeply (even by 50% at 0.5 mm).
- Direction of force – maximum parameter is obtained only during pulling at a 90° angle. The force required to slide of the magnet along the plate is standardly many times lower (approx. 1/5 of the lifting capacity).
- Metal thickness – the thinner the sheet, the weaker the hold. Magnetic flux penetrates through instead of generating force.
- Chemical composition of the base – mild steel gives the best results. Alloy steels lower magnetic permeability and holding force.
- Surface structure – the smoother and more polished the surface, the better the adhesion and higher the lifting capacity. Roughness acts like micro-gaps.
- Thermal factor – hot environment reduces pulling force. Exceeding the limit temperature can permanently damage the magnet.
Holding force was tested on the plate surface of 20 mm thickness, when a perpendicular force was applied, whereas under parallel forces the holding force is lower. Additionally, even a minimal clearance between the magnet’s surface and the plate decreases the load capacity.
Safe handling of NdFeB magnets
Machining danger
Fire hazard: Neodymium dust is highly flammable. Do not process magnets without safety gear as this may cause fire.
Magnet fragility
Protect your eyes. Magnets can explode upon uncontrolled impact, ejecting sharp fragments into the air. Eye protection is mandatory.
ICD Warning
Life threat: Strong magnets can turn off pacemakers and defibrillators. Do not approach if you have medical devices.
Do not overheat magnets
Keep cool. NdFeB magnets are sensitive to temperature. If you need resistance above 80°C, inquire about special high-temperature series (H, SH, UH).
Keep away from computers
Do not bring magnets near a wallet, laptop, or TV. The magnetism can irreversibly ruin these devices and erase data from cards.
This is not a toy
Adult use only. Small elements can be swallowed, leading to serious injuries. Store out of reach of kids and pets.
GPS Danger
GPS units and smartphones are extremely sensitive to magnetism. Direct contact with a strong magnet can ruin the internal compass in your phone.
Bone fractures
Risk of injury: The attraction force is so great that it can result in hematomas, pinching, and broken bones. Protective gloves are recommended.
Safe operation
Handle with care. Rare earth magnets attract from a long distance and snap with huge force, often quicker than you can move away.
Skin irritation risks
A percentage of the population suffer from a contact allergy to Ni, which is the standard coating for neodymium magnets. Frequent touching can result in skin redness. We strongly advise use protective gloves.
Tabela kosztu i czasu dostawy
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