![Magnetic beam (separator) BM 550x180x70 [4x M8]](https://cdn3.dhit.pl/graphics/banners/magnet.webp "Magnetic beam (separator) BM 550x180x70 [4x M8]")
![BM 550x180x70 [4x M8] - magnetic beam](https://cdn3.dhit.pl/graphics/products/bm-550x180x70-4x-m8-nic.jpg)
BM 550x180x70 [4x M8] - magnetic beam
magnetic beam
Catalog no 090221
GTIN/EAN: 5906301812562
length
550 mm [±1 mm]
Width
180 mm [±1 mm]
Height
70 mm [±1 mm]
Weight
35320 g
5708.18 ZŁ with VAT / pcs + price for transport
4640.80 ZŁ net + 23% VAT / pcs
bulk discounts:
Need more?
Call us now
+48 888 99 98 98
alternatively contact us by means of
request form
the contact section.
Force as well as form of magnets can be reviewed with our
magnetic mass calculator.
Orders placed before 14:00 will be shipped the same business day.
Detailed specification - BM 550x180x70 [4x M8] - magnetic beam
Specification / characteristics - BM 550x180x70 [4x M8] - magnetic beam
| properties | values |
|---|---|
| Cat. no. | 090221 |
| GTIN/EAN | 5906301812562 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| length | 550 mm [±1 mm] |
| Width | 180 mm [±1 mm] |
| Height | 70 mm [±1 mm] |
| Weight | 35320 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 |
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% |
Environmental data
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
See more proposals
Strengths as well as weaknesses of Nd2Fe14B magnets.
Advantages
- Their magnetic field remains stable, and after approximately ten years it drops only by ~1% (according to research),
- Magnets effectively protect themselves against loss of magnetization caused by ambient magnetic noise,
- A magnet with a smooth silver surface is more attractive,
- Neodymium magnets create maximum magnetic induction on a their surface, which increases force concentration,
- 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...
- In view of the ability of flexible forming and customization to custom needs, magnetic components can be produced in a broad palette of geometric configurations, which increases their versatility,
- Significant place in future technologies – they find application in HDD drives, motor assemblies, advanced medical instruments, and complex engineering applications.
- Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in small dimensions, which allows their use in small systems
Limitations
- They are fragile upon too strong impacts. To avoid cracks, it is worth protecting magnets in a protective case. Such protection not only protects the magnet but also improves its resistance to damage
- We warn that neodymium magnets can lose their power at high temperatures. To prevent this, we recommend our specialized [AH] magnets, which work effectively even at 230°C.
- Due to the susceptibility of magnets to corrosion in a humid environment, we suggest using waterproof magnets made of rubber, plastic or other material stable to moisture, in case of application outdoors
- Limited ability of creating nuts in the magnet and complicated shapes - recommended is casing - mounting mechanism.
- Health risk related to microscopic parts of magnets pose a threat, if swallowed, which gains importance in the aspect of protecting the youngest. Additionally, tiny parts of these products are able to disrupt the diagnostic process medical in case of swallowing.
- Higher cost of purchase is one of the disadvantages compared to ceramic magnets, especially in budget applications
Pull force analysis
Maximum lifting capacity of the magnet – what it depends on?
- on a base made of structural steel, optimally conducting the magnetic field
- whose thickness reaches at least 10 mm
- characterized by lack of roughness
- under conditions of gap-free contact (surface-to-surface)
- for force applied at a right angle (in the magnet axis)
- in temp. approx. 20°C
Lifting capacity in practice – influencing factors
- Distance – the presence of foreign body (paint, dirt, gap) acts as an insulator, which reduces capacity rapidly (even by 50% at 0.5 mm).
- Direction of force – maximum parameter is reached only during perpendicular pulling. The force required to slide of the magnet along the plate is usually several times lower (approx. 1/5 of the lifting capacity).
- Steel thickness – insufficiently thick plate does not accept the full field, causing part of the power to be lost to the other side.
- Steel grade – the best choice is pure iron steel. Stainless steels may attract less.
- Surface condition – ground elements ensure maximum contact, which increases field saturation. Uneven metal reduce efficiency.
- Thermal factor – hot environment reduces magnetic field. Exceeding the limit temperature can permanently demagnetize the magnet.
Lifting capacity testing was carried out on a smooth plate of suitable thickness, under a perpendicular pulling force, in contrast under attempts to slide the magnet 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 holding force.
Safety rules for work with NdFeB magnets
Swallowing risk
Product intended for adults. Small elements can be swallowed, leading to serious injuries. Keep away from kids and pets.
Dust explosion hazard
Machining of NdFeB material poses a fire risk. Neodymium dust oxidizes rapidly with oxygen and is difficult to extinguish.
Risk of cracking
Despite the nickel coating, the material is delicate and cannot withstand shocks. Do not hit, as the magnet may shatter into hazardous fragments.
ICD Warning
Life threat: Neodymium magnets can turn off heart devices and defibrillators. Stay away if you have electronic implants.
Hand protection
Large magnets can crush fingers instantly. Never place your hand betwixt two attracting surfaces.
Sensitization to coating
Warning for allergy sufferers: The Ni-Cu-Ni coating consists of nickel. If skin irritation happens, immediately stop handling magnets and use protective gear.
Maximum temperature
Regular neodymium magnets (grade N) lose power when the temperature surpasses 80°C. Damage is permanent.
Electronic hazard
Very strong magnetic fields can destroy records on payment cards, hard drives, and other magnetic media. Maintain a gap of min. 10 cm.
Impact on smartphones
GPS units and mobile phones are highly susceptible to magnetic fields. Close proximity with a strong magnet can permanently damage the sensors in your phone.
Do not underestimate power
Before starting, check safety instructions. Uncontrolled attraction can destroy the magnet or hurt your hand. Be predictive.
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