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BM 510x180x70 [4x M8] - magnetic beam
magnetic beam
Catalog no 090220
GTIN/EAN: 5906301812555
length
510 mm [±1 mm]
Width
180 mm [±1 mm]
Height
70 mm [±1 mm]
Weight
32750 g
5253.21 ZŁ with VAT / pcs + price for transport
4270.90 ZŁ net + 23% VAT / pcs
bulk discounts:
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Parameters along with shape of neodymium magnets can be tested using our
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Detailed specification - BM 510x180x70 [4x M8] - magnetic beam
Specification / characteristics - BM 510x180x70 [4x M8] - magnetic beam
| properties | values |
|---|---|
| Cat. no. | 090220 |
| GTIN/EAN | 5906301812555 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| length | 510 mm [±1 mm] |
| Width | 180 mm [±1 mm] |
| Height | 70 mm [±1 mm] |
| Weight | 32750 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 |
See also products
Advantages and disadvantages of neodymium magnets.
Benefits
- They have constant strength, and over more than 10 years their performance decreases symbolically – ~1% (according to theory),
- Neodymium magnets are distinguished by extremely resistant to magnetic field loss caused by external magnetic fields,
- Thanks to the glossy finish, the layer of Ni-Cu-Ni, gold-plated, or silver-plated gives an aesthetic appearance,
- Magnetic induction on the surface of the magnet turns out to be maximum,
- Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and can work (depending on the shape) even at a temperature of 230°C or more...
- Thanks to modularity in shaping and the ability to customize to individual projects,
- Key role in high-tech industry – they are commonly used in mass storage devices, motor assemblies, precision medical tools, also other advanced devices.
- Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications
Weaknesses
- Susceptibility to cracking is one of their disadvantages. Upon intense impact they can fracture. We recommend keeping them in a steel housing, which not only secures them against impacts but also increases their durability
- Neodymium magnets decrease their force 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 durability even at temperatures up to 230°C
- Magnets exposed to a humid environment can rust. Therefore during using outdoors, we suggest using waterproof magnets made of rubber, plastic or other material resistant to moisture
- Limited possibility of making nuts in the magnet and complicated shapes - preferred is cover - magnetic holder.
- Potential hazard related to microscopic parts of magnets can be dangerous, in case of ingestion, which is particularly important in the context of child health protection. Additionally, tiny parts of these products can be problematic in diagnostics medical in case of swallowing.
- Due to expensive raw materials, their price is relatively high,
Holding force characteristics
Magnetic strength at its maximum – what contributes to it?
- using a sheet made of mild steel, acting as a magnetic yoke
- whose thickness is min. 10 mm
- with an ideally smooth contact surface
- without the slightest air gap between the magnet and steel
- for force acting at a right angle (in the magnet axis)
- at standard ambient temperature
What influences lifting capacity in practice
- Gap (betwixt the magnet and the metal), since even a tiny distance (e.g. 0.5 mm) results in a drastic drop in lifting capacity by up to 50% (this also applies to paint, rust or dirt).
- Angle of force application – maximum parameter is available only during pulling at a 90° angle. The resistance to sliding of the magnet along the surface is typically many times smaller (approx. 1/5 of the lifting capacity).
- Plate thickness – insufficiently thick steel does not close the flux, causing part of the power to be wasted into the air.
- Steel grade – the best choice is pure iron steel. Hardened steels may have worse magnetic properties.
- Surface finish – full contact is possible only on smooth steel. Any scratches and bumps create air cushions, weakening the magnet.
- Heat – NdFeB sinters have a sensitivity to temperature. At higher temperatures they lose power, and at low temperatures gain strength (up to a certain limit).
Lifting capacity was determined using a steel plate with a smooth surface of optimal thickness (min. 20 mm), under vertically applied force, however under shearing force the load capacity is reduced by as much as 5 times. Additionally, even a slight gap between the magnet and the plate reduces the holding force.
Safe handling of NdFeB magnets
Hand protection
Pinching hazard: The attraction force is so immense that it can cause blood blisters, pinching, and even bone fractures. Protective gloves are recommended.
Sensitization to coating
Some people experience a sensitization to Ni, which is the typical protective layer for NdFeB magnets. Frequent touching might lead to a rash. We suggest wear safety gloves.
Caution required
Before use, check safety instructions. Uncontrolled attraction can break the magnet or injure your hand. Be predictive.
Electronic hazard
Data protection: Strong magnets can damage data carriers and sensitive devices (heart implants, hearing aids, timepieces).
Do not overheat magnets
Control the heat. Exposing the magnet to high heat will permanently weaken its magnetic structure and pulling force.
Combustion hazard
Fire warning: Rare earth powder is explosive. Do not process magnets without safety gear as this may cause fire.
Impact on smartphones
GPS units and smartphones are highly sensitive to magnetism. Close proximity with a strong magnet can decalibrate the sensors in your phone.
Adults only
Adult use only. Small elements can be swallowed, leading to intestinal necrosis. Store away from children and animals.
Medical interference
Individuals with a heart stimulator have to maintain an absolute distance from magnets. The magnetic field can stop the functioning of the implant.
Fragile material
Despite the nickel coating, neodymium is delicate and cannot withstand shocks. Avoid impacts, as the magnet may crumble into hazardous fragments.
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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