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
bulk discounts:
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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% |
Sustainability
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
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Advantages as well as disadvantages of rare earth magnets.
Benefits
- They have stable power, and over more than 10 years their performance decreases symbolically – ~1% (in testing),
- They feature excellent resistance to magnetism drop due to external magnetic sources,
- In other words, due to the reflective layer of gold, the element gains visual value,
- Neodymium magnets ensure maximum magnetic induction on a their surface, which ensures high operational effectiveness,
- Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their form) at temperatures up to 230°C and above...
- Due to the potential of flexible molding and customization to unique solutions, NdFeB magnets can be produced in a broad palette of geometric configurations, which expands the range of possible applications,
- Significant place in modern industrial fields – they serve a role in data components, brushless drives, diagnostic systems, as well as modern systems.
- Thanks to their power density, small magnets offer high operating force, with minimal size,
Cons
- Brittleness is one of their disadvantages. Upon strong impact they can break. We recommend keeping them in a special holder, which not only protects them against impacts but also increases their durability
- NdFeB magnets lose strength when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of power (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 extremely resistant to heat
- They rust in a humid environment. For use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
- Due to limitations in realizing threads and complicated forms in magnets, we propose using a housing - magnetic mechanism.
- Potential hazard related to microscopic parts of magnets can be dangerous, in case of ingestion, which becomes key in the context of child health protection. Additionally, tiny parts of these devices are able to be problematic in diagnostics 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
Pull force analysis
Breakaway strength of the magnet in ideal conditions – what affects it?
- on a base made of mild steel, optimally conducting the magnetic flux
- possessing a massiveness of minimum 10 mm to avoid saturation
- with an ground touching surface
- under conditions of gap-free contact (surface-to-surface)
- for force acting at a right angle (pull-off, not shear)
- at temperature room level
What influences lifting capacity in practice
- Distance – existence of foreign body (rust, tape, gap) acts as an insulator, which reduces power rapidly (even by 50% at 0.5 mm).
- Pull-off angle – note that the magnet has greatest strength perpendicularly. Under shear forces, the holding force drops drastically, often to levels of 20-30% of the nominal value.
- Wall thickness – the thinner the sheet, the weaker the hold. Magnetic flux penetrates through instead of converting into lifting capacity.
- Plate material – low-carbon steel attracts best. Higher carbon content decrease magnetic properties and lifting capacity.
- Plate texture – ground elements ensure maximum contact, which improves field saturation. Rough surfaces weaken the grip.
- Thermal environment – temperature increase results in weakening of induction. It is worth remembering the maximum operating temperature for a given model.
Lifting capacity was assessed by applying a polished steel plate of suitable thickness (min. 20 mm), under perpendicular pulling force, however under shearing force the lifting capacity is smaller. Additionally, even a small distance between the magnet and the plate reduces the load capacity.
Safe handling of NdFeB magnets
Compass and GPS
An intense magnetic field disrupts the functioning of magnetometers in smartphones and navigation systems. Keep magnets close to a smartphone to prevent breaking the sensors.
Permanent damage
Watch the temperature. Exposing the magnet above 80 degrees Celsius will permanently weaken its properties and strength.
Material brittleness
Despite the nickel coating, neodymium is delicate and cannot withstand shocks. Avoid impacts, as the magnet may crumble into hazardous fragments.
Implant safety
Individuals with a heart stimulator must keep an safe separation from magnets. The magnetic field can stop the operation of the implant.
Threat to electronics
Device Safety: Neodymium magnets can damage payment cards and delicate electronics (pacemakers, hearing aids, mechanical watches).
Hand protection
Danger of trauma: The pulling power is so great that it can cause hematomas, pinching, and even bone fractures. Protective gloves are recommended.
Machining danger
Machining of neodymium magnets poses a fire hazard. Neodymium dust reacts violently with oxygen and is hard to extinguish.
Handling guide
Handle magnets with awareness. Their immense force can surprise even experienced users. Be vigilant and do not underestimate their power.
This is not a toy
Adult use only. Small elements pose a choking risk, leading to intestinal necrosis. Store out of reach of children and animals.
Sensitization to coating
Studies show that nickel (the usual finish) is a strong allergen. For allergy sufferers, refrain from touching magnets with bare hands or choose versions in plastic housing.
