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BM 650x180x70 [4x M8] - magnetic beam
magnetic beam
Catalog no 090222
GTIN/EAN: 5906301812579
length
650 mm [±1 mm]
Width
180 mm [±1 mm]
Height
70 mm [±1 mm]
Weight
41750 g
6131.43 ZŁ with VAT / pcs + price for transport
4984.90 ZŁ net + 23% VAT / pcs
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Product card - BM 650x180x70 [4x M8] - magnetic beam
Specification / characteristics - BM 650x180x70 [4x M8] - magnetic beam
| properties | values |
|---|---|
| Cat. no. | 090222 |
| GTIN/EAN | 5906301812579 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| length | 650 mm [±1 mm] |
| Width | 180 mm [±1 mm] |
| Height | 70 mm [±1 mm] |
| Weight | 41750 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% |
Environmental data
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
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Pros as well as cons of Nd2Fe14B magnets.
Strengths
- They do not lose magnetism, even during around 10 years – the decrease in strength is only ~1% (according to tests),
- They are resistant to demagnetization induced by external disturbances,
- A magnet with a shiny gold surface has an effective appearance,
- The surface of neodymium magnets generates a maximum magnetic field – this is a key feature,
- Thanks to resistance to high temperature, they are able to function (depending on the form) even at temperatures up to 230°C and higher...
- Considering the potential of precise shaping and adaptation to unique requirements, magnetic components can be manufactured in a wide range of forms and dimensions, which expands the range of possible applications,
- Wide application in modern industrial fields – they are utilized in magnetic memories, brushless drives, medical devices, and complex engineering applications.
- Thanks to efficiency per cm³, small magnets offer high operating force, occupying minimum space,
Disadvantages
- Brittleness is one of their disadvantages. Upon strong impact they can break. We advise keeping them in a special holder, which not only protects them against impacts but also increases their durability
- We warn that neodymium magnets can lose their power at high temperatures. To prevent this, we suggest our specialized [AH] magnets, which work effectively even at 230°C.
- Magnets exposed to a humid environment can corrode. Therefore when using outdoors, we advise using water-impermeable magnets made of rubber, plastic or other material protecting against moisture
- Limited ability of making threads in the magnet and complicated forms - recommended is a housing - magnet mounting.
- Health risk resulting from small fragments of magnets pose a threat, when accidentally swallowed, which is particularly important in the context of child safety. It is also worth noting that small components of these products can complicate diagnosis medical when they are in the body.
- High unit price – neodymium magnets are more expensive than other types of magnets (e.g. ferrite), which increases costs of application in large quantities
Holding force characteristics
Breakaway strength of the magnet in ideal conditions – what affects it?
- using a plate made of mild steel, functioning as a ideal flux conductor
- whose thickness reaches at least 10 mm
- characterized by smoothness
- without the slightest air gap between the magnet and steel
- during detachment in a direction perpendicular to the plane
- in neutral thermal conditions
Key elements affecting lifting force
- Space between surfaces – even a fraction of a millimeter of distance (caused e.g. by varnish or unevenness) diminishes the magnet efficiency, often by half at just 0.5 mm.
- Pull-off angle – remember that the magnet has greatest strength perpendicularly. Under shear forces, the holding force drops drastically, often to levels of 20-30% of the nominal value.
- Substrate thickness – to utilize 100% power, the steel must be sufficiently thick. Paper-thin metal restricts the attraction force (the magnet "punches through" it).
- Steel type – low-carbon steel attracts best. Alloy admixtures decrease magnetic permeability and lifting capacity.
- Surface finish – full contact is possible only on smooth steel. Any scratches and bumps reduce the real contact area, reducing force.
- Thermal factor – hot environment reduces magnetic field. Too high temperature can permanently demagnetize the magnet.
Holding force was tested on a smooth steel plate of 20 mm thickness, when a perpendicular force was applied, in contrast under attempts to slide the magnet the holding force is lower. Moreover, even a minimal clearance between the magnet’s surface and the plate reduces the load capacity.
Warnings
Warning for allergy sufferers
Nickel alert: The Ni-Cu-Ni coating consists of nickel. If redness happens, immediately stop handling magnets and wear gloves.
Machining danger
Powder created during cutting of magnets is combustible. Do not drill into magnets unless you are an expert.
Handling guide
Before starting, read the rules. Sudden snapping can break the magnet or injure your hand. Think ahead.
Adults only
Product intended for adults. Small elements pose a choking risk, leading to serious injuries. Store away from children and animals.
Data carriers
Device Safety: Neodymium magnets can damage payment cards and delicate electronics (pacemakers, hearing aids, mechanical watches).
Eye protection
Despite the nickel coating, the material is delicate and not impact-resistant. Avoid impacts, as the magnet may crumble into sharp, dangerous pieces.
Maximum temperature
Watch the temperature. Heating the magnet above 80 degrees Celsius will permanently weaken its properties and strength.
Crushing risk
Pinching hazard: The attraction force is so great that it can result in blood blisters, pinching, and broken bones. Use thick gloves.
Health Danger
Life threat: Strong magnets can turn off pacemakers and defibrillators. Stay away if you have medical devices.
Magnetic interference
Navigation devices and mobile phones are extremely sensitive to magnetic fields. Direct contact with a powerful NdFeB magnet can permanently damage the sensors in your phone.
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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