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BM 700x180x75 [8xM10] - magnetic beam
magnetic beam
Catalog no 090472
GTIN/EAN: 5906301812616
length
700 mm [±1 mm]
Width
180 mm [±1 mm]
Height
75 mm [±1 mm]
Weight
35000 g
6150.00 ZŁ with VAT / pcs + price for transport
5000.00 ZŁ net + 23% VAT / pcs
bulk discounts:
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Detailed specification - BM 700x180x75 [8xM10] - magnetic beam
Specification / characteristics - BM 700x180x75 [8xM10] - magnetic beam
| properties | values |
|---|---|
| Cat. no. | 090472 |
| GTIN/EAN | 5906301812616 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| length | 700 mm [±1 mm] |
| Width | 180 mm [±1 mm] |
| Height | 75 mm [±1 mm] |
| Weight | 35000 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% |
Environmental data
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
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Pros and cons of neodymium magnets.
Advantages
- They have stable power, and over nearly 10 years their attraction force decreases symbolically – ~1% (according to theory),
- Neodymium magnets are distinguished by exceptionally resistant to loss of magnetic properties caused by external field sources,
- The use of an aesthetic coating of noble metals (nickel, gold, silver) causes the element to look better,
- The surface of neodymium magnets generates a strong magnetic field – this is a distinguishing feature,
- 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 exact modeling and adjusting to specific conditions,
- Versatile presence in modern industrial fields – they find application in mass storage devices, electric motors, medical equipment, as well as modern systems.
- Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in small dimensions, which enables their usage in small systems
Cons
- Brittleness is one of their disadvantages. Upon intense impact they can fracture. We advise keeping them in a steel housing, which not only protects them against impacts but also increases their durability
- Neodymium magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop of strength (a factor is the shape as well as dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are very resistant to heat
- Due to the susceptibility of magnets to corrosion in a humid environment, we advise using waterproof magnets made of rubber, plastic or other material stable to moisture, when using outdoors
- We suggest a housing - magnetic mechanism, due to difficulties in creating nuts inside the magnet and complicated shapes.
- Potential hazard to health – tiny shards of magnets pose a threat, if swallowed, which gains importance in the context of child health protection. Additionally, small components of these magnets are able to be problematic in diagnostics medical when they are in the body.
- Due to expensive raw materials, their price is higher than average,
Holding force characteristics
Optimal lifting capacity of a neodymium magnet – what it depends on?
- using a plate made of high-permeability steel, serving as a ideal flux conductor
- possessing a thickness of at least 10 mm to ensure full flux closure
- with an ground touching surface
- without any air gap between the magnet and steel
- for force acting at a right angle (pull-off, not shear)
- in stable room temperature
What influences lifting capacity in practice
- Gap between surfaces – even a fraction of a millimeter of separation (caused e.g. by veneer or unevenness) drastically reduces the magnet efficiency, often by half at just 0.5 mm.
- Force direction – note that the magnet holds strongest perpendicularly. Under sliding down, the capacity drops significantly, often to levels of 20-30% of the maximum value.
- Wall thickness – the thinner the sheet, the weaker the hold. Magnetic flux passes through the material instead of converting into lifting capacity.
- Material composition – not every steel reacts the same. Alloy additives worsen the attraction effect.
- Surface structure – the smoother and more polished the plate, the better the adhesion and higher the lifting capacity. Roughness creates an air distance.
- Temperature influence – hot environment weakens pulling force. 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 lifting capacity is smaller. Additionally, even a slight gap between the magnet’s surface and the plate lowers the load capacity.
Warnings
Metal Allergy
Some people experience a hypersensitivity to nickel, which is the common plating for NdFeB magnets. Frequent touching may cause a rash. We suggest use safety gloves.
Maximum temperature
Avoid heat. NdFeB magnets are susceptible to temperature. If you need operation above 80°C, look for HT versions (H, SH, UH).
Material brittleness
Watch out for shards. Magnets can explode upon violent connection, ejecting shards into the air. Wear goggles.
Electronic devices
Device Safety: Neodymium magnets can ruin payment cards and sensitive devices (heart implants, hearing aids, timepieces).
Dust explosion hazard
Powder generated during grinding of magnets is combustible. Avoid drilling into magnets unless you are an expert.
Danger to the youngest
NdFeB magnets are not suitable for play. Eating several magnets may result in them connecting inside the digestive tract, which constitutes a severe health hazard and requires immediate surgery.
Health Danger
Warning for patients: Strong magnetic fields affect electronics. Maintain at least 30 cm distance or request help to work with the magnets.
Caution required
Before use, check safety instructions. Sudden snapping can destroy the magnet or injure your hand. Think ahead.
Phone sensors
An intense magnetic field interferes with the operation of magnetometers in phones and navigation systems. Maintain magnets close to a device to avoid damaging the sensors.
Crushing risk
Risk of injury: The pulling power is so great that it can result in blood blisters, crushing, and even bone fractures. Use thick gloves.
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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