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BM 950x180x70 [4x M8] - magnetic beam
magnetic beam
Catalog no 090225
GTIN/EAN: 5906301812609
length
950 mm [±1 mm]
Width
180 mm [±1 mm]
Height
70 mm [±1 mm]
Weight
61000 g
8564.49 ZŁ with VAT / pcs + price for transport
6963.00 ZŁ net + 23% VAT / pcs
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BM 950x180x70 [4x M8] - magnetic beam
Specification / characteristics BM 950x180x70 [4x M8] - magnetic beam
| properties | values |
|---|---|
| Cat. no. | 090225 |
| GTIN/EAN | 5906301812609 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| length | 950 mm [±1 mm] |
| Width | 180 mm [±1 mm] |
| Height | 70 mm [±1 mm] |
| Weight | 61000 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% |
Sustainability
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
Other proposals
![UMGZ 75x34x18 [M10] GZ / N38 - magnetic holder external thread](https://cdn3.dhit.pl/graphics/products/umgw-75x34x18-m10-gz-xid.jpg "UMGZ 75x34x18 [M10] GZ / N38 - magnetic holder external thread")
Strengths as well as weaknesses of neodymium magnets.
Benefits
- They do not lose strength, even over nearly ten years – the drop in lifting capacity is only ~1% (based on measurements),
- They are noted for resistance to demagnetization induced by external disturbances,
- By applying a decorative coating of gold, the element has an proper look,
- Magnetic induction on the surface of the magnet turns out to be impressive,
- Through (adequate) combination of ingredients, they can achieve high thermal resistance, enabling operation at temperatures reaching 230°C and above...
- Thanks to freedom in designing and the capacity to modify to complex applications,
- Versatile presence in innovative solutions – they serve a role in magnetic memories, brushless drives, medical equipment, as well as other advanced devices.
- Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in compact dimensions, which allows their use in small systems
Limitations
- At strong impacts they can break, therefore we advise placing them in special holders. A metal housing provides additional protection against damage and increases the magnet's durability.
- Neodymium magnets lose their power 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 stability even at temperatures up to 230°C
- They oxidize in a humid environment. For use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
- Limited ability of making nuts in the magnet and complicated forms - preferred is cover - mounting mechanism.
- Possible danger related to microscopic parts of magnets are risky, if swallowed, which is particularly important in the context of child safety. Furthermore, small elements of these devices can be problematic in diagnostics medical when they are in the body.
- Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications
Holding force characteristics
Maximum magnetic pulling force – what affects it?
- using a plate made of mild steel, serving as a ideal flux conductor
- possessing a massiveness of min. 10 mm to ensure full flux closure
- characterized by smoothness
- without the slightest clearance between the magnet and steel
- during pulling in a direction vertical to the plane
- at conditions approx. 20°C
Lifting capacity in practice – influencing factors
- Gap between magnet and steel – even a fraction of a millimeter of distance (caused e.g. by veneer or unevenness) drastically reduces the pulling force, often by half at just 0.5 mm.
- Loading method – catalog parameter refers to pulling vertically. When applying parallel force, the magnet exhibits much less (typically approx. 20-30% of maximum force).
- Element thickness – for full efficiency, the steel must be sufficiently thick. Paper-thin metal restricts the lifting capacity (the magnet "punches through" it).
- Metal type – not every steel attracts identically. High carbon content weaken the interaction with the magnet.
- Surface structure – the more even the plate, the larger the contact zone and stronger the hold. Roughness creates an air distance.
- Operating temperature – NdFeB sinters have a negative temperature coefficient. At higher temperatures they lose power, and at low temperatures gain strength (up to a certain limit).
Holding force was checked on the plate surface of 20 mm thickness, when the force acted perpendicularly, in contrast under shearing force the load capacity is reduced by as much as fivefold. Moreover, even a slight gap between the magnet’s surface and the plate decreases the lifting capacity.
Keep away from children
Product intended for adults. Tiny parts can be swallowed, leading to serious injuries. Store out of reach of children and animals.
Risk of cracking
NdFeB magnets are sintered ceramics, meaning they are prone to chipping. Impact of two magnets leads to them shattering into shards.
Magnetic interference
Navigation devices and mobile phones are extremely sensitive to magnetic fields. Direct contact with a powerful NdFeB magnet can ruin the internal compass in your phone.
Maximum temperature
Standard neodymium magnets (N-type) lose power when the temperature exceeds 80°C. The loss of strength is permanent.
Crushing risk
Danger of trauma: The attraction force is so immense that it can cause hematomas, pinching, and even bone fractures. Use thick gloves.
Conscious usage
Handle with care. Neodymium magnets attract from a long distance and connect with huge force, often faster than you can move away.
Flammability
Fire hazard: Rare earth powder is explosive. Do not process magnets in home conditions as this risks ignition.
Pacemakers
Warning for patients: Powerful magnets disrupt electronics. Maintain at least 30 cm distance or request help to work with the magnets.
Keep away from computers
Data protection: Neodymium magnets can damage payment cards and delicate electronics (pacemakers, medical aids, mechanical watches).
Sensitization to coating
Studies show that the nickel plating (the usual finish) is a common allergen. If your skin reacts to metals, refrain from direct skin contact and choose coated 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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