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BM 750x180x70 [4x M8] - magnetic beam
magnetic beam
Catalog no 090223
GTIN/EAN: 5906301812586
length
750 mm [±1 mm]
Width
180 mm [±1 mm]
Height
70 mm [±1 mm]
Weight
48150 g
6914.94 ZŁ with VAT / pcs + price for transport
5621.90 ZŁ net + 23% VAT / pcs
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BM 750x180x70 [4x M8] - magnetic beam
Specification / characteristics BM 750x180x70 [4x M8] - magnetic beam
| properties | values |
|---|---|
| Cat. no. | 090223 |
| GTIN/EAN | 5906301812586 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| length | 750 mm [±1 mm] |
| Width | 180 mm [±1 mm] |
| Height | 70 mm [±1 mm] |
| Weight | 48150 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% |
Sustainability
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
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Pros as well as cons of Nd2Fe14B magnets.
Strengths
- They do not lose power, even after nearly ten years – the drop in power is only ~1% (according to tests),
- They maintain their magnetic properties even under external field action,
- By applying a shiny coating of gold, the element acquires an aesthetic look,
- Neodymium magnets create maximum magnetic induction on a small area, which allows for strong attraction,
- 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...
- Thanks to flexibility in shaping and the ability to customize to complex applications,
- Significant place in electronics industry – they are utilized in computer drives, motor assemblies, medical equipment, and modern systems.
- Relatively small size with high pulling force – neodymium magnets offer high power in tiny dimensions, which allows their use in miniature devices
Cons
- Brittleness is one of their disadvantages. Upon intense impact they can break. We advise keeping them in a strong case, which not only secures them against impacts but also raises their durability
- We warn that neodymium magnets can reduce their power at high temperatures. To prevent this, we suggest our specialized [AH] magnets, which work effectively even at 230°C.
- Magnets exposed to a humid environment can corrode. Therefore while using outdoors, we advise using water-impermeable magnets made of rubber, plastic or other material resistant to moisture
- We recommend cover - magnetic mount, due to difficulties in realizing nuts inside the magnet and complicated shapes.
- Health risk related to microscopic parts of magnets can be dangerous, when accidentally swallowed, which gains importance in the aspect of protecting the youngest. It is also worth noting that tiny parts of these magnets can complicate diagnosis medical when they are in the body.
- With large orders the cost of neodymium magnets is a challenge,
Holding force characteristics
Optimal lifting capacity of a neodymium magnet – what it depends on?
- on a base made of structural steel, perfectly concentrating the magnetic flux
- with a thickness no less than 10 mm
- with a surface free of scratches
- under conditions of no distance (surface-to-surface)
- during detachment in a direction perpendicular to the mounting surface
- at temperature room level
Impact of factors on magnetic holding capacity in practice
- Clearance – existence of any layer (rust, tape, air) interrupts the magnetic circuit, which lowers capacity steeply (even by 50% at 0.5 mm).
- Force direction – declared lifting capacity refers to pulling vertically. When applying parallel force, the magnet exhibits significantly lower power (often approx. 20-30% of nominal force).
- Wall thickness – the thinner the sheet, the weaker the hold. Part of the magnetic field passes through the material instead of converting into lifting capacity.
- Metal type – not every steel attracts identically. Alloy additives worsen the attraction effect.
- Surface structure – the smoother and more polished the surface, the better the adhesion and higher the lifting capacity. Roughness acts like micro-gaps.
- Temperature influence – high temperature weakens magnetic field. 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, in contrast under shearing force the lifting capacity is smaller. Moreover, even a small distance between the magnet’s surface and the plate lowers the lifting capacity.
Impact on smartphones
GPS units and mobile phones are highly sensitive to magnetic fields. Direct contact with a strong magnet can ruin the sensors in your phone.
Pacemakers
Medical warning: Strong magnets can deactivate pacemakers and defibrillators. Do not approach if you have electronic implants.
Keep away from computers
Intense magnetic fields can corrupt files on payment cards, HDDs, and storage devices. Maintain a gap of min. 10 cm.
Handling guide
Handle magnets with awareness. Their powerful strength can shock even professionals. Plan your moves and respect their force.
Fragile material
Neodymium magnets are ceramic materials, meaning they are fragile like glass. Collision of two magnets leads to them cracking into small pieces.
Choking Hazard
These products are not suitable for play. Eating several magnets can lead to them pinching intestinal walls, which constitutes a critical condition and requires urgent medical intervention.
Machining danger
Powder generated during machining of magnets is flammable. Do not drill into magnets unless you are an expert.
Avoid contact if allergic
Certain individuals suffer from a hypersensitivity to Ni, which is the common plating for NdFeB magnets. Extended handling can result in an allergic reaction. It is best to wear safety gloves.
Permanent damage
Monitor thermal conditions. Heating the magnet above 80 degrees Celsius will permanently weaken its magnetic structure and pulling force.
Physical harm
Big blocks can break fingers instantly. Do not place your hand between two strong magnets.
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
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