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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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Lifting power and appearance of a neodymium magnet can be checked on our
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Technical data of the product - 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 |
Material specification
| 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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Advantages as well as disadvantages of rare earth magnets.
Pros
- They have unchanged lifting capacity, and over around ten years their performance decreases symbolically – ~1% (according to theory),
- Neodymium magnets are extremely resistant to demagnetization caused by magnetic disturbances,
- A magnet with a shiny nickel surface has an effective appearance,
- Neodymium magnets create maximum magnetic induction on a small area, which ensures high operational effectiveness,
- 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 the potential of accurate molding and customization to unique requirements, NdFeB magnets can be modeled in a wide range of shapes and sizes, which expands the range of possible applications,
- Versatile presence in advanced technology sectors – they find application in data components, drive modules, advanced medical instruments, and modern systems.
- Compactness – despite small sizes they provide effective action, making them ideal for precision applications
Cons
- At strong impacts they can crack, therefore we advise placing them in special holders. A metal housing provides additional protection against damage and increases the magnet's durability.
- When exposed to high temperature, neodymium magnets suffer a drop in force. 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
- Magnets exposed to a humid environment can rust. Therefore during using outdoors, we suggest using waterproof magnets made of rubber, plastic or other material protecting against moisture
- Due to limitations in creating nuts and complicated shapes in magnets, we propose using cover - magnetic holder.
- Possible danger resulting from small fragments of magnets can be dangerous, if swallowed, which gains importance in the context of child health protection. Furthermore, small components of these magnets are able to complicate diagnosis medical in case of swallowing.
- Due to complex production process, their price is higher than average,
Holding force characteristics
Highest magnetic holding force – what affects it?
- on a plate made of mild steel, perfectly concentrating the magnetic field
- with a thickness no less than 10 mm
- characterized by lack of roughness
- without the slightest insulating layer between the magnet and steel
- for force applied at a right angle (pull-off, not shear)
- at ambient temperature approx. 20 degrees Celsius
Determinants of lifting force in real conditions
- Distance (between the magnet and the plate), because even a microscopic distance (e.g. 0.5 mm) can cause a drastic drop in lifting capacity by up to 50% (this also applies to varnish, corrosion or dirt).
- Force direction – declared lifting capacity refers to detachment vertically. When slipping, the magnet holds significantly lower power (typically 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 generating force.
- Material composition – not every steel reacts the same. High carbon content weaken the interaction with the magnet.
- Smoothness – full contact is obtained only on polished steel. Any scratches and bumps reduce the real contact area, weakening the magnet.
- Thermal conditions – NdFeB sinters have a sensitivity to temperature. When it is hot they lose power, and at low temperatures gain strength (up to a certain limit).
Lifting capacity testing was conducted on plates with a smooth surface of optimal thickness, under a perpendicular pulling force, however under parallel forces the load capacity is reduced by as much as 5 times. Moreover, even a minimal clearance between the magnet and the plate lowers the lifting capacity.
Precautions when working with NdFeB magnets
Conscious usage
Handle magnets with awareness. Their huge power can shock even professionals. Stay alert and respect their power.
Heat warning
Regular neodymium magnets (grade N) undergo demagnetization when the temperature exceeds 80°C. This process is irreversible.
Material brittleness
NdFeB magnets are sintered ceramics, which means they are very brittle. Collision of two magnets leads to them breaking into small pieces.
Keep away from children
These products are not intended for children. Swallowing a few magnets may result in them connecting inside the digestive tract, which constitutes a severe health hazard and requires urgent medical intervention.
Mechanical processing
Fire hazard: Rare earth powder is explosive. Do not process magnets without safety gear as this may cause fire.
Threat to navigation
GPS units and smartphones are highly susceptible to magnetism. Direct contact with a strong magnet can ruin the sensors in your phone.
Warning for heart patients
Health Alert: Neodymium magnets can deactivate heart devices and defibrillators. Do not approach if you have medical devices.
Warning for allergy sufferers
A percentage of the population experience a sensitization to Ni, which is the common plating for NdFeB magnets. Extended handling might lead to skin redness. We suggest use protective gloves.
Magnetic media
Device Safety: Strong magnets can damage data carriers and sensitive devices (pacemakers, medical aids, timepieces).
Bodily injuries
Watch your fingers. Two powerful magnets will join immediately with a force of massive weight, crushing everything in their path. Exercise extreme caution!
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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