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BM 850x180x70 [4x M8] - magnetic beam
magnetic beam
Catalog no 090224
GTIN/EAN: 5906301812593
length
850 mm [±1 mm]
Width
180 mm [±1 mm]
Height
70 mm [±1 mm]
Weight
54590 g
7729.93 ZŁ with VAT / pcs + price for transport
6284.50 ZŁ net + 23% VAT / pcs
bulk discounts:
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Technical data of the product - BM 850x180x70 [4x M8] - magnetic beam
Specification / characteristics - BM 850x180x70 [4x M8] - magnetic beam
| properties | values |
|---|---|
| Cat. no. | 090224 |
| GTIN/EAN | 5906301812593 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| length | 850 mm [±1 mm] |
| Width | 180 mm [±1 mm] |
| Height | 70 mm [±1 mm] |
| Weight | 54590 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% |
Ecology and recycling (GPSR)
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
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Strengths and weaknesses of Nd2Fe14B magnets.
Advantages
- They have constant strength, and over nearly ten years their performance decreases symbolically – ~1% (according to theory),
- Magnets perfectly resist against loss of magnetization caused by foreign field sources,
- In other words, due to the shiny layer of silver, the element gains a professional look,
- Neodymium magnets achieve maximum magnetic induction on a their surface, which allows for strong attraction,
- Through (appropriate) combination of ingredients, they can achieve high thermal strength, enabling operation at temperatures reaching 230°C and above...
- Possibility of exact creating and adapting to precise requirements,
- Fundamental importance in innovative solutions – they are used in data components, electric motors, medical equipment, as well as other advanced devices.
- Thanks to concentrated force, small magnets offer high operating force, with minimal size,
Disadvantages
- To avoid cracks under impact, we suggest using special steel holders. Such a solution protects the magnet and simultaneously improves its durability.
- When exposed to high temperature, neodymium magnets suffer a drop in strength. Often, when the temperature exceeds 80°C, their strength decreases (depending on the size and shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
- They oxidize in a humid environment - during use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
- Limited possibility of making threads in the magnet and complex shapes - preferred is casing - magnetic holder.
- Potential hazard resulting from small fragments of magnets can be dangerous, if swallowed, which becomes key in the context of child health protection. Furthermore, small components of these magnets are able to be problematic in diagnostics medical when they are in the body.
- High unit price – neodymium magnets cost more than other types of magnets (e.g. ferrite), which hinders application in large quantities
Holding force characteristics
Maximum lifting capacity of the magnet – what it depends on?
- with the use of a sheet made of low-carbon steel, ensuring full magnetic saturation
- with a cross-section no less than 10 mm
- with an ideally smooth touching surface
- without any clearance between the magnet and steel
- during pulling in a direction perpendicular to the mounting surface
- in neutral thermal conditions
Determinants of lifting force in real conditions
- Distance (betwixt the magnet and the plate), as even a very small distance (e.g. 0.5 mm) leads to a reduction in lifting capacity by up to 50% (this also applies to paint, corrosion or debris).
- Force direction – note that the magnet holds strongest perpendicularly. Under sliding down, the capacity drops significantly, often to levels of 20-30% of the nominal value.
- Steel thickness – too thin plate causes magnetic saturation, causing part of the power to be wasted to the other side.
- Material composition – not every steel attracts identically. Alloy additives worsen the interaction with the magnet.
- Base smoothness – the more even the surface, the better the adhesion and stronger the hold. Unevenness acts like micro-gaps.
- Temperature – temperature increase causes a temporary drop of force. It is worth remembering the maximum operating temperature for a given model.
Holding force was measured on a smooth steel plate of 20 mm thickness, when a perpendicular force was applied, whereas under parallel forces the lifting capacity is smaller. Moreover, even a slight gap between the magnet’s surface and the plate lowers the load capacity.
Safety rules for work with NdFeB magnets
Protect data
Powerful magnetic fields can erase data on credit cards, HDDs, and other magnetic media. Keep a distance of min. 10 cm.
Operating temperature
Standard neodymium magnets (grade N) undergo demagnetization when the temperature surpasses 80°C. The loss of strength is permanent.
Immense force
Handle magnets with awareness. Their immense force can shock even professionals. Plan your moves and do not underestimate their power.
Bone fractures
Large magnets can crush fingers in a fraction of a second. Under no circumstances place your hand betwixt two strong magnets.
Nickel coating and allergies
It is widely known that the nickel plating (the usual finish) is a potent allergen. If your skin reacts to metals, avoid direct skin contact and opt for encased magnets.
Keep away from children
Always store magnets away from children. Risk of swallowing is high, and the effects of magnets clamping inside the body are fatal.
Threat to navigation
A strong magnetic field negatively affects the operation of magnetometers in phones and navigation systems. Do not bring magnets close to a smartphone to avoid breaking the sensors.
Eye protection
Despite metallic appearance, the material is brittle and not impact-resistant. Do not hit, as the magnet may shatter into hazardous fragments.
Dust explosion hazard
Powder produced during cutting of magnets is combustible. Avoid drilling into magnets unless you are an expert.
Medical implants
For implant holders: Powerful magnets affect medical devices. Keep at least 30 cm distance or ask another person to handle the 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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