ZM XMAG2 105 elementów - magnetic toy
magnetic toy
Catalog no 040211
GTIN/EAN: 5906301812371
Weight
0.03 g
Load capacity
0.03 kg / 0.26 N
49.20 ZŁ with VAT / pcs + price for transport
40.00 ZŁ net + 23% VAT / pcs
bulk discounts:
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Lifting power along with shape of magnets can be calculated using our
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Technical 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% |
Sustainability
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
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Pros as well as cons of neodymium magnets.
Pros
- Their power is durable, and after approximately ten years it drops only by ~1% (theoretically),
- They have excellent resistance to magnetism drop due to external magnetic sources,
- Thanks to the glossy finish, the surface of nickel, gold, or silver gives an aesthetic appearance,
- They feature high magnetic induction at the operating surface, which increases their power,
- Due to their durability and thermal resistance, neodymium magnets can operate (depending on the form) even at high temperatures reaching 230°C or more...
- Thanks to modularity in forming and the ability to modify to client solutions,
- Wide application in future technologies – they are used in computer drives, electric motors, medical equipment, as well as modern systems.
- Thanks to their power density, small magnets offer high operating force, in miniature format,
Cons
- To avoid cracks upon strong impacts, we suggest using special steel holders. Such a solution secures the magnet and simultaneously improves its durability.
- When exposed to high temperature, neodymium magnets suffer a drop in power. Often, when the temperature exceeds 80°C, their strength decreases (depending on the size and shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
- Magnets exposed to a humid environment can rust. Therefore while using outdoors, we recommend using waterproof magnets made of rubber, plastic or other material resistant to moisture
- Due to limitations in producing nuts and complicated shapes in magnets, we propose using a housing - magnetic mount.
- Potential hazard related to microscopic parts of magnets are risky, if swallowed, which gains importance in the context of child safety. It is also worth noting that small elements of these magnets can disrupt the diagnostic process medical after entering the body.
- Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications
Pull force analysis
Maximum lifting force for a neodymium magnet – what contributes to it?
- with the application of a yoke made of special test steel, guaranteeing full magnetic saturation
- possessing a massiveness of at least 10 mm to avoid saturation
- characterized by lack of roughness
- without the slightest air gap between the magnet and steel
- under perpendicular application of breakaway force (90-degree angle)
- at ambient temperature room level
Determinants of practical lifting force of a magnet
- Gap between surfaces – every millimeter of distance (caused e.g. by varnish or dirt) diminishes the pulling force, often by half at just 0.5 mm.
- Force direction – note that the magnet holds strongest perpendicularly. Under sliding down, the capacity drops drastically, often to levels of 20-30% of the maximum value.
- Element thickness – for full efficiency, the steel must be sufficiently thick. Paper-thin metal limits the attraction force (the magnet "punches through" it).
- Material composition – different alloys reacts the same. High carbon content weaken the attraction effect.
- Surface quality – the more even the plate, the larger the contact zone and higher the lifting capacity. Unevenness creates an air distance.
- Temperature – temperature increase results in weakening of induction. Check the thermal limit for a given model.
Lifting capacity was assessed by applying a polished steel plate of suitable thickness (min. 20 mm), under perpendicular detachment force, whereas under attempts to slide the magnet the lifting capacity is smaller. Additionally, even a slight gap between the magnet’s surface and the plate decreases the holding force.
Safety rules for work with NdFeB magnets
Data carriers
Do not bring magnets close to a purse, laptop, or TV. The magnetism can permanently damage these devices and wipe information from cards.
Mechanical processing
Powder generated during machining of magnets is flammable. Avoid drilling into magnets unless you are an expert.
Magnets are brittle
Despite metallic appearance, the material is delicate and cannot withstand shocks. Avoid impacts, as the magnet may crumble into sharp, dangerous pieces.
Immense force
Use magnets consciously. Their immense force can surprise even experienced users. Plan your moves and respect their power.
Choking Hazard
Absolutely keep magnets away from children. Choking hazard is significant, and the effects of magnets connecting inside the body are very dangerous.
Implant safety
People with a pacemaker should maintain an large gap from magnets. The magnetism can interfere with the operation of the implant.
Skin irritation risks
It is widely known that the nickel plating (standard magnet coating) is a common allergen. If you have an allergy, avoid touching magnets with bare hands and choose versions in plastic housing.
Finger safety
Protect your hands. Two powerful magnets will join immediately with a force of several hundred kilograms, destroying everything in their path. Be careful!
Heat sensitivity
Control the heat. Exposing the magnet above 80 degrees Celsius will destroy its magnetic structure and pulling force.
Precision electronics
A powerful magnetic field interferes with the functioning of magnetometers in phones and GPS navigation. Do not bring magnets near a smartphone to avoid breaking the sensors.
Tabela kosztu i czasu dostawy
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