AM Haczyk M4 - magnetic accessories
magnetic accessories
Catalog no 080505
Coating
[NiCuNi] Nickel
1.230 ZŁ with VAT / pcs + price for transport
1.000 ZŁ net + 23% VAT / pcs
bulk discounts:
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Force along with shape of a neodymium magnet can be verified on our
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Product card - AM Haczyk M4 - magnetic accessories
Specification / characteristics - AM Haczyk M4 - magnetic accessories
| properties | values |
|---|---|
| Cat. no. | 080505 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Coating | [NiCuNi] Nickel |
| 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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Strengths as well as weaknesses of rare earth magnets.
Benefits
- They have stable power, and over nearly ten years their attraction force decreases symbolically – ~1% (according to theory),
- They maintain their magnetic properties even under strong external field,
- A magnet with a metallic silver surface looks better,
- They show high magnetic induction at the operating surface, making them more effective,
- 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...
- Possibility of individual modeling as well as optimizing to complex needs,
- Fundamental importance in modern technologies – they are commonly used in HDD drives, electric motors, medical devices, as well as modern systems.
- Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in tiny dimensions, which makes them useful in small systems
Weaknesses
- At strong impacts they can crack, therefore we recommend placing them in special holders. A metal housing provides additional protection against damage and increases the magnet's durability.
- Neodymium magnets lose their strength under the influence of heating. As soon as 80°C is exceeded, many of them start losing their power. Therefore, we recommend our special magnets marked [AH], which maintain stability even at temperatures up to 230°C
- Magnets exposed to a humid environment can corrode. Therefore while using outdoors, we suggest using waterproof magnets made of rubber, plastic or other material protecting against moisture
- Limited ability of producing nuts in the magnet and complex shapes - recommended is cover - magnetic holder.
- Possible danger to health – tiny shards of magnets are risky, if swallowed, which is particularly important in the context of child health protection. Additionally, small elements of these magnets are able to complicate diagnosis medical in case of swallowing.
- Due to expensive raw materials, their price exceeds standard values,
Lifting parameters
Maximum lifting force for a neodymium magnet – what affects it?
- on a base made of structural steel, optimally conducting the magnetic flux
- with a cross-section no less than 10 mm
- with a surface cleaned and smooth
- under conditions of no distance (metal-to-metal)
- for force acting at a right angle (pull-off, not shear)
- at ambient temperature room level
Practical aspects of lifting capacity – factors
- Gap (betwixt the magnet and the plate), since even a very small clearance (e.g. 0.5 mm) leads to a drastic drop in force by up to 50% (this also applies to varnish, rust or debris).
- Force direction – catalog parameter refers to detachment vertically. When applying parallel force, the magnet holds significantly lower power (typically approx. 20-30% of maximum force).
- Wall thickness – the thinner the sheet, the weaker the hold. Magnetic flux penetrates through instead of generating force.
- Material composition – different alloys reacts the same. High carbon content worsen the attraction effect.
- Base smoothness – the more even the plate, the larger the contact zone and stronger the hold. Unevenness creates an air distance.
- Temperature influence – high temperature weakens pulling force. Exceeding the limit temperature can permanently damage the magnet.
Holding force was measured on the plate surface of 20 mm thickness, when a perpendicular force was applied, whereas under parallel forces the lifting capacity is smaller. Moreover, even a minimal clearance between the magnet and the plate decreases the holding force.
H&S for magnets
Keep away from electronics
An intense magnetic field negatively affects the operation of magnetometers in smartphones and navigation systems. Keep magnets close to a smartphone to avoid damaging the sensors.
Warning for heart patients
Health Alert: Strong magnets can deactivate pacemakers and defibrillators. Stay away if you have medical devices.
Demagnetization risk
Monitor thermal conditions. Heating the magnet to high heat will destroy its properties and pulling force.
Bodily injuries
Watch your fingers. Two powerful magnets will join instantly with a force of several hundred kilograms, destroying everything in their path. Be careful!
Sensitization to coating
Allergy Notice: The Ni-Cu-Ni coating contains nickel. If redness happens, cease working with magnets and wear gloves.
Caution required
Be careful. Neodymium magnets act from a distance and connect with massive power, often quicker than you can move away.
No play value
Strictly keep magnets away from children. Ingestion danger is high, and the consequences of magnets clamping inside the body are fatal.
Magnet fragility
Despite metallic appearance, the material is brittle and cannot withstand shocks. Do not hit, as the magnet may shatter into sharp, dangerous pieces.
Dust explosion hazard
Drilling and cutting of neodymium magnets carries a risk of fire risk. Neodymium dust reacts violently with oxygen and is hard to extinguish.
Keep away from computers
Powerful magnetic fields can destroy records on payment cards, hard drives, and other magnetic media. Stay away of at least 10 cm.
Tabela kosztu i czasu dostawy
Płatność przed wysyłką:
GLS kurier
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14.99 ZŁ
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12.30 ZŁ
Płatność przy odbiorze (pobranie):
GLS kurier
Przesyłka będzie u Ciebie za 1-2 dni
23.00 ZŁ
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