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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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% |
Environmental data
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
View also products
Pros and cons of rare earth magnets.
Pros
- They do not lose magnetism, even during nearly 10 years – the reduction in power is only ~1% (based on measurements),
- Magnets effectively resist against demagnetization caused by foreign field sources,
- The use of an aesthetic finish of noble metals (nickel, gold, silver) causes the element to have aesthetics,
- Magnets possess impressive magnetic induction on the working surface,
- Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their shape) at temperatures up to 230°C and above...
- Possibility of detailed machining and modifying to specific requirements,
- Significant place in modern industrial fields – they serve a role in HDD drives, electric motors, medical devices, also multitasking production systems.
- Thanks to their power density, small magnets offer high operating force, with minimal size,
Cons
- Brittleness is one of their disadvantages. Upon intense impact they can break. We recommend keeping them in a special holder, which not only secures them against impacts but also raises their durability
- When exposed to high temperature, neodymium magnets suffer a drop in strength. Often, when the temperature exceeds 80°C, their strength decreases (depending on the size, as well as shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
- When exposed to humidity, magnets start to rust. To use them in conditions outside, it is recommended to use protective magnets, such as those in rubber or plastics, which secure oxidation as well as corrosion.
- We suggest cover - magnetic mechanism, due to difficulties in creating threads inside the magnet and complicated forms.
- Potential hazard resulting from small fragments of magnets pose a threat, if swallowed, which gains importance in the context of child safety. Additionally, small elements of these magnets can be problematic in diagnostics medical in case of swallowing.
- Due to expensive raw materials, their price is higher than average,
Lifting parameters
Maximum holding power of the magnet – what contributes to it?
- with the application of a yoke made of low-carbon steel, guaranteeing full magnetic saturation
- whose transverse dimension reaches at least 10 mm
- with a plane free of scratches
- with zero gap (without impurities)
- for force applied at a right angle (in the magnet axis)
- at ambient temperature approx. 20 degrees Celsius
Practical lifting capacity: influencing factors
- Distance – the presence of foreign body (rust, dirt, gap) acts as an insulator, which lowers capacity rapidly (even by 50% at 0.5 mm).
- Direction of force – maximum parameter is obtained only during pulling at a 90° angle. The shear force of the magnet along the surface is typically many times smaller (approx. 1/5 of the lifting capacity).
- Substrate thickness – for full efficiency, the steel must be adequately massive. Thin sheet limits the attraction force (the magnet "punches through" it).
- Steel grade – the best choice is pure iron steel. Cast iron may have worse magnetic properties.
- Surface condition – smooth surfaces ensure maximum contact, which improves field saturation. Uneven metal weaken the grip.
- Temperature – heating the magnet causes a temporary drop of induction. It is worth remembering the thermal limit for a given model.
Lifting capacity testing was conducted on plates with a smooth surface of suitable thickness, under perpendicular forces, however under attempts to slide the magnet the holding force is lower. Additionally, even a minimal clearance between the magnet and the plate reduces the load capacity.
Safe handling of NdFeB magnets
Permanent damage
Monitor thermal conditions. Exposing the magnet to high heat will destroy its magnetic structure and strength.
Conscious usage
Before use, read the rules. Sudden snapping can break the magnet or hurt your hand. Think ahead.
Electronic devices
Data protection: Strong magnets can ruin data carriers and sensitive devices (pacemakers, hearing aids, timepieces).
Danger to pacemakers
Warning for patients: Powerful magnets disrupt electronics. Maintain at least 30 cm distance or ask another person to handle the magnets.
Choking Hazard
These products are not toys. Eating multiple magnets can lead to them attracting across intestines, which constitutes a severe health hazard and requires urgent medical intervention.
Do not drill into magnets
Dust generated during grinding of magnets is flammable. Avoid drilling into magnets unless you are an expert.
Crushing risk
Large magnets can break fingers in a fraction of a second. Never place your hand betwixt two attracting surfaces.
Metal Allergy
Nickel alert: The Ni-Cu-Ni coating contains nickel. If skin irritation appears, cease working with magnets and use protective gear.
Beware of splinters
Protect your eyes. Magnets can fracture upon violent connection, ejecting shards into the air. Wear goggles.
GPS Danger
GPS units and mobile phones are highly susceptible to magnetism. Close proximity with a strong magnet can permanently damage the internal compass in your phone.
