JM 18x60 - jajka bez pudełka/cena za parę - magnetic eggs
magnetic eggs
Catalog no 270213
GTIN/EAN: 5906301814412
Weight
83 g
8.99 ZŁ with VAT / pcs + price for transport
7.31 ZŁ net + 23% VAT / pcs
bulk discounts:
Need more?
Call us
+48 22 499 98 98
alternatively contact us using
inquiry form
our website.
Specifications along with structure of a neodymium magnet can be analyzed with our
magnetic calculator.
Orders submitted before 14:00 will be dispatched today!
Detailed specification - JM 18x60 - jajka bez pudełka/cena za parę - magnetic eggs
Specification / characteristics - JM 18x60 - jajka bez pudełka/cena za parę - magnetic eggs
| properties | values |
|---|---|
| Cat. no. | 270213 |
| GTIN/EAN | 5906301814412 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Weight | 83 g |
| 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 |
Other proposals
![SM 18x300 [2xM5] / N42 - magnetic separator](https://cdn3.dhit.pl/graphics/products/sm-18x300-2xm5-xad.jpg "SM 18x300 [2xM5] / N42 - magnetic separator")
![SM 25x150 [2xM8] / N52 - magnetic separator](https://cdn3.dhit.pl/graphics/products/sm-25x150-2xm8-sux.jpg "SM 25x150 [2xM8] / N52 - magnetic separator")
Advantages as well as disadvantages of rare earth magnets.
Pros
- They do not lose magnetism, even after approximately 10 years – the reduction in lifting capacity is only ~1% (based on measurements),
- They do not lose their magnetic properties even under close interference source,
- In other words, due to the reflective finish of silver, the element gains a professional look,
- Neodymium magnets ensure maximum magnetic induction on a small area, which increases force concentration,
- Neodymium magnets are characterized by very high magnetic induction on the magnet surface and can function (depending on the form) even at a temperature of 230°C or more...
- Thanks to the option of flexible forming and customization to custom solutions, NdFeB magnets can be created in a broad palette of forms and dimensions, which makes them more universal,
- Universal use in electronics industry – they find application in data components, electric motors, precision medical tools, also complex engineering applications.
- Compactness – despite small sizes they provide effective action, making them ideal for precision applications
Cons
- Brittleness is one of their disadvantages. Upon strong impact they can fracture. We advise keeping them in a strong case, which not only secures them against impacts but also raises their durability
- When exposed to high temperature, neodymium magnets experience a drop in force. Often, when the temperature exceeds 80°C, their power 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
- Magnets exposed to a humid environment can corrode. Therefore when using outdoors, we recommend using water-impermeable magnets made of rubber, plastic or other material protecting against moisture
- Limited ability of making threads in the magnet and complicated forms - preferred is cover - magnet mounting.
- Possible danger resulting from small fragments of magnets can be dangerous, in case of ingestion, which gains importance in the context of child safety. Furthermore, tiny parts of these devices can be problematic in diagnostics medical in case of swallowing.
- Higher cost of purchase is one of the disadvantages compared to ceramic magnets, especially in budget applications
Holding force characteristics
Best holding force of the magnet in ideal parameters – what contributes to it?
- on a plate made of structural steel, optimally conducting the magnetic flux
- whose thickness reaches at least 10 mm
- characterized by even structure
- without any air gap between the magnet and steel
- during pulling in a direction vertical to the plane
- at temperature approx. 20 degrees Celsius
Key elements affecting lifting force
- Gap between magnet and steel – even a fraction of a millimeter of distance (caused e.g. by varnish or dirt) drastically reduces the pulling force, often by half at just 0.5 mm.
- Force direction – remember that the magnet has greatest strength perpendicularly. Under sliding down, the holding force drops drastically, often to levels of 20-30% of the nominal value.
- Substrate thickness – for full efficiency, the steel must be sufficiently thick. Thin sheet limits the attraction force (the magnet "punches through" it).
- Chemical composition of the base – low-carbon steel attracts best. Higher carbon content decrease magnetic permeability and holding force.
- Surface structure – the more even the plate, the better the adhesion and stronger the hold. Roughness creates an air distance.
- Temperature – heating the magnet results in weakening of induction. 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, however under attempts to slide the magnet the holding force is lower. In addition, even a small distance between the magnet’s surface and the plate decreases the lifting capacity.
H&S for magnets
Hand protection
Watch your fingers. Two powerful magnets will join instantly with a force of several hundred kilograms, destroying everything in their path. Exercise extreme caution!
Impact on smartphones
Be aware: neodymium magnets produce a field that disrupts precision electronics. Maintain a safe distance from your phone, device, and navigation systems.
Fire risk
Combustion risk: Rare earth powder is highly flammable. Do not process magnets without safety gear as this risks ignition.
Health Danger
Health Alert: Strong magnets can turn off pacemakers and defibrillators. Do not approach if you have electronic implants.
Keep away from computers
Equipment safety: Strong magnets can ruin payment cards and sensitive devices (heart implants, hearing aids, mechanical watches).
Avoid contact if allergic
Allergy Notice: The Ni-Cu-Ni coating contains nickel. If an allergic reaction occurs, cease handling magnets and use protective gear.
Eye protection
Neodymium magnets are ceramic materials, which means they are prone to chipping. Clashing of two magnets leads to them breaking into shards.
Danger to the youngest
NdFeB magnets are not intended for children. Swallowing several magnets may result in them connecting inside the digestive tract, which poses a severe health hazard and necessitates urgent medical intervention.
Caution required
Exercise caution. Neodymium magnets attract from a long distance and connect with massive power, often quicker than you can move away.
Thermal limits
Keep cool. Neodymium magnets are susceptible to heat. If you need resistance above 80°C, look for special high-temperature series (H, SH, UH).
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
Rate the product
Your rating