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:
Need more?
Contact us by phone
+48 22 499 98 98
otherwise get in touch using
our online form
the contact form page.
Parameters as well as structure of magnets can be reviewed on our
our magnetic calculator.
Same-day shipping for orders placed before 14:00.
Technical parameters - 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 |
Chemical composition
| 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% |
Ecology and recycling (GPSR)
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
Other offers
![MPL 40x15x5x2[7/3.5] / N38 - lamellar magnet](https://cdn3.dhit.pl/graphics/products/mpl-40x15x5x27-3.5-cas.jpg "MPL 40x15x5x2[7/3.5] / N38 - lamellar magnet")
![BM 380x180x70 [4x M8] - magnetic beam](https://cdn3.dhit.pl/graphics/products/bm-380x180x70-4x-m8-wex.jpg "BM 380x180x70 [4x M8] - magnetic beam")
Advantages as well as disadvantages of rare earth magnets.
Strengths
- Their magnetic field remains stable, and after around 10 years it drops only by ~1% (according to research),
- They are noted for resistance to demagnetization induced by external field influence,
- Thanks to the elegant finish, the surface of Ni-Cu-Ni, gold, or silver-plated gives an clean appearance,
- Magnets exhibit very high magnetic induction on the outer side,
- Through (adequate) combination of ingredients, they can achieve high thermal strength, allowing for operation at temperatures reaching 230°C and above...
- Possibility of detailed forming as well as modifying to complex applications,
- Versatile presence in high-tech industry – they serve a role in magnetic memories, motor assemblies, medical equipment, as well as modern systems.
- Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in small dimensions, which enables their usage in small systems
Cons
- They are fragile upon heavy impacts. To avoid cracks, it is worth protecting magnets using a steel holder. Such protection not only protects the magnet but also increases its resistance to damage
- When exposed to high temperature, neodymium magnets experience a drop in strength. 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
- When exposed to humidity, magnets start to rust. For applications outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which secure oxidation and corrosion.
- Limited possibility of making nuts in the magnet and complex forms - preferred is casing - mounting mechanism.
- Possible danger related to microscopic parts of magnets can be dangerous, when accidentally swallowed, which gains importance in the aspect of protecting the youngest. Additionally, small elements of these products can complicate diagnosis medical after entering the body.
- Due to neodymium price, their price is higher than average,
Pull force analysis
Maximum lifting force for a neodymium magnet – what it depends on?
- with the contact of a yoke made of special test steel, guaranteeing full magnetic saturation
- whose transverse dimension equals approx. 10 mm
- characterized by even structure
- under conditions of ideal adhesion (metal-to-metal)
- for force acting at a right angle (in the magnet axis)
- in temp. approx. 20°C
Lifting capacity in practice – influencing factors
- Distance – the presence of any layer (paint, tape, air) acts as an insulator, which lowers power steeply (even by 50% at 0.5 mm).
- Force direction – note that the magnet has greatest strength perpendicularly. Under shear forces, the holding force drops drastically, often to levels of 20-30% of the nominal value.
- Wall thickness – the thinner the sheet, the weaker the hold. Magnetic flux passes through the material instead of generating force.
- Material type – ideal substrate is pure iron steel. Hardened steels may have worse magnetic properties.
- Base smoothness – the more even the surface, the larger the contact zone and stronger the hold. Roughness creates an air distance.
- Thermal factor – high temperature weakens magnetic field. Exceeding the limit temperature can permanently demagnetize the magnet.
Holding force was measured on the plate surface of 20 mm thickness, when the force acted perpendicularly, in contrast under shearing force the load capacity is reduced by as much as fivefold. Moreover, even a minimal clearance between the magnet’s surface and the plate lowers the holding force.
H&S for magnets
Crushing risk
Large magnets can crush fingers instantly. Under no circumstances place your hand betwixt two strong magnets.
Medical implants
Patients with a pacemaker should maintain an absolute distance from magnets. The magnetic field can interfere with the operation of the implant.
Data carriers
Data protection: Neodymium magnets can ruin payment cards and delicate electronics (heart implants, hearing aids, timepieces).
Danger to the youngest
Adult use only. Small elements pose a choking risk, causing severe trauma. Keep out of reach of children and animals.
Warning for allergy sufferers
Allergy Notice: The nickel-copper-nickel coating contains nickel. If redness occurs, immediately stop working with magnets and use protective gear.
Phone sensors
A powerful magnetic field disrupts the functioning of magnetometers in phones and navigation systems. Maintain magnets close to a device to prevent damaging the sensors.
Handling rules
Use magnets consciously. Their immense force can surprise even professionals. Be vigilant and do not underestimate their force.
Heat sensitivity
Control the heat. Heating the magnet to high heat will permanently weaken its properties and strength.
Dust explosion hazard
Fire hazard: Rare earth powder is explosive. Avoid machining magnets in home conditions as this may cause fire.
Beware of splinters
Despite metallic appearance, the material is delicate and cannot withstand shocks. Avoid impacts, as the magnet may shatter into sharp, dangerous pieces.
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