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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
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Technical details - 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% |
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 rare earth magnets.
Benefits
- They do not lose magnetism, even after approximately ten years – the drop in power is only ~1% (theoretically),
- They possess excellent resistance to magnetic field loss due to external magnetic sources,
- The use of an metallic layer of noble metals (nickel, gold, silver) causes the element to be more visually attractive,
- They feature high magnetic induction at the operating surface, which affects their effectiveness,
- Through (appropriate) combination of ingredients, they can achieve high thermal strength, enabling functioning at temperatures approaching 230°C and above...
- In view of the ability of free forming and customization to custom solutions, magnetic components can be produced in a wide range of shapes and sizes, which expands the range of possible applications,
- Versatile presence in future technologies – they are used in magnetic memories, brushless drives, advanced medical instruments, as well as complex engineering applications.
- Thanks to efficiency per cm³, small magnets offer high operating force, with minimal size,
Cons
- They are prone to damage upon too strong impacts. To avoid cracks, it is worth securing magnets in a protective case. Such protection not only shields the magnet but also increases its resistance to damage
- When exposed to high temperature, neodymium magnets suffer a drop in power. Often, when the temperature exceeds 80°C, their power 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
- Magnets exposed to a humid environment can rust. Therefore while using outdoors, we suggest using water-impermeable magnets made of rubber, plastic or other material resistant to moisture
- We recommend cover - magnetic holder, due to difficulties in creating threads inside the magnet and complex shapes.
- Potential hazard resulting from small fragments of magnets pose a threat, if swallowed, which is particularly important in the context of child health protection. It is also worth noting that tiny parts of these magnets are able to be problematic in diagnostics medical when they are in the body.
- Due to neodymium price, their price exceeds standard values,
Pull force analysis
Highest magnetic holding force – what affects it?
- on a plate made of mild steel, perfectly concentrating the magnetic flux
- with a cross-section of at least 10 mm
- with a surface free of scratches
- under conditions of ideal adhesion (metal-to-metal)
- for force acting at a right angle (in the magnet axis)
- in stable room temperature
Determinants of practical lifting force of a magnet
- Gap (between the magnet and the plate), because even a tiny distance (e.g. 0.5 mm) leads to a drastic drop in lifting capacity by up to 50% (this also applies to varnish, corrosion or dirt).
- Force direction – catalog parameter refers to pulling vertically. When applying parallel force, the magnet exhibits much less (typically approx. 20-30% of maximum force).
- Plate thickness – too thin sheet does not close the flux, causing part of the power to be wasted into the air.
- Plate material – mild steel attracts best. Higher carbon content reduce magnetic properties and lifting capacity.
- Surface structure – the smoother and more polished the plate, the larger the contact zone and higher the lifting capacity. Unevenness acts like micro-gaps.
- Temperature influence – high temperature reduces pulling force. Exceeding the limit temperature can permanently damage the magnet.
Holding force was checked on the plate surface of 20 mm thickness, when a perpendicular force was applied, however under shearing force the lifting capacity is smaller. Moreover, even a slight gap between the magnet’s surface and the plate lowers the lifting capacity.
Warnings
Threat to navigation
GPS units and smartphones are highly sensitive to magnetic fields. Direct contact with a powerful NdFeB magnet can ruin the internal compass in your phone.
No play value
These products are not intended for children. Accidental ingestion of multiple magnets can lead to them pinching intestinal walls, which constitutes a severe health hazard and requires urgent medical intervention.
Serious injuries
Large magnets can crush fingers in a fraction of a second. Never put your hand between two attracting surfaces.
Permanent damage
Standard neodymium magnets (N-type) lose power when the temperature exceeds 80°C. Damage is permanent.
Allergy Warning
Certain individuals suffer from a hypersensitivity to Ni, which is the typical protective layer for neodymium magnets. Prolonged contact may cause skin redness. It is best to use safety gloves.
Magnet fragility
NdFeB magnets are sintered ceramics, which means they are fragile like glass. Clashing of two magnets leads to them breaking into small pieces.
Do not drill into magnets
Dust generated during grinding of magnets is flammable. Avoid drilling into magnets without proper cooling and knowledge.
Implant safety
Patients with a ICD have to keep an safe separation from magnets. The magnetism can disrupt the functioning of the life-saving device.
Powerful field
Handle with care. Rare earth magnets act from a distance and connect with huge force, often quicker than you can move away.
Electronic hazard
Data protection: Neodymium magnets can ruin payment cards and delicate electronics (pacemakers, medical aids, timepieces).
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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