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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Product card - 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 |
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% |
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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Strengths as well as weaknesses of rare earth magnets.
Advantages
- They do not lose strength, even after approximately ten years – the reduction in lifting capacity is only ~1% (according to tests),
- Neodymium magnets are distinguished by extremely resistant to demagnetization caused by external magnetic fields,
- Thanks to the elegant finish, the coating of Ni-Cu-Ni, gold-plated, or silver-plated gives an elegant appearance,
- They feature high magnetic induction at the operating surface, which improves attraction properties,
- Thanks to resistance to high temperature, they are able to function (depending on the shape) even at temperatures up to 230°C and higher...
- Possibility of exact forming as well as modifying to complex applications,
- Versatile presence in electronics industry – they are commonly used in hard drives, electric drive systems, diagnostic systems, also industrial machines.
- Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications
Weaknesses
- At strong impacts they can crack, therefore we recommend placing them in special holders. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
- Neodymium 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 as well as 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
- They oxidize in a humid environment - during use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
- Due to limitations in creating threads and complex shapes in magnets, we propose using cover - magnetic mount.
- Health risk related to microscopic parts of magnets are risky, in case of ingestion, which is particularly important in the context of child safety. It is also worth noting that tiny parts of these products are able to be problematic in diagnostics medical in case of swallowing.
- With budget limitations the cost of neodymium magnets is economically unviable,
Holding force characteristics
Best holding force of the magnet in ideal parameters – what it depends on?
- on a block made of mild steel, perfectly concentrating the magnetic field
- whose thickness reaches at least 10 mm
- with a surface cleaned and smooth
- with total lack of distance (without impurities)
- during pulling in a direction perpendicular to the mounting surface
- at conditions approx. 20°C
Impact of factors on magnetic holding capacity in practice
- Distance – existence of foreign body (paint, dirt, gap) interrupts the magnetic circuit, which lowers capacity rapidly (even by 50% at 0.5 mm).
- Angle of force application – maximum parameter is reached only during perpendicular pulling. The shear force of the magnet along the plate is standardly several times lower (approx. 1/5 of the lifting capacity).
- Base massiveness – too thin sheet causes magnetic saturation, causing part of the flux to be lost into the air.
- Steel grade – the best choice is pure iron steel. Stainless steels may generate lower lifting capacity.
- Surface quality – the smoother and more polished the plate, the better the adhesion and stronger the hold. Roughness acts like micro-gaps.
- Temperature – heating the magnet results in weakening of force. It is worth remembering the maximum operating temperature for a given model.
Holding force was tested on a smooth steel plate of 20 mm thickness, when the force acted perpendicularly, whereas under parallel forces the load capacity is reduced by as much as 75%. Additionally, even a slight gap between the magnet’s surface and the plate reduces the load capacity.
Warnings
Dust is flammable
Powder generated during machining of magnets is self-igniting. Avoid drilling into magnets unless you are an expert.
Swallowing risk
Neodymium magnets are not toys. Eating a few magnets may result in them pinching intestinal walls, which constitutes a severe health hazard and necessitates immediate surgery.
Pinching danger
Protect your hands. Two powerful magnets will join immediately with a force of several hundred kilograms, crushing everything in their path. Be careful!
Risk of cracking
Despite metallic appearance, neodymium is brittle and not impact-resistant. Do not hit, as the magnet may shatter into hazardous fragments.
Danger to pacemakers
For implant holders: Strong magnetic fields disrupt electronics. Keep at least 30 cm distance or ask another person to work with the magnets.
Safe operation
Before starting, read the rules. Uncontrolled attraction can break the magnet or injure your hand. Be predictive.
Sensitization to coating
Warning for allergy sufferers: The Ni-Cu-Ni coating consists of nickel. If redness occurs, cease handling magnets and wear gloves.
Threat to navigation
Navigation devices and smartphones are highly susceptible to magnetic fields. Close proximity with a strong magnet can permanently damage the internal compass in your phone.
Thermal limits
Do not overheat. NdFeB magnets are sensitive to temperature. If you need resistance above 80°C, look for special high-temperature series (H, SH, UH).
Magnetic media
Data protection: Strong magnets can damage payment cards and sensitive devices (pacemakers, medical aids, mechanical watches).
Tabela kosztu i czasu dostawy
Płatność przed wysyłką:
GLS kurier
Przesyłka będzie u Ciebie za 2-3 dni
14.99 ZŁ
InPost Paczkomaty 24/7
Przesyłka będzie u Ciebie za 1-2 dni
12.30 ZŁ
Płatność przy odbiorze (pobranie):
GLS kurier
Przesyłka będzie u Ciebie za 1-2 dni
23.00 ZŁ
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