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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
bulk discounts:
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Technical parameters of the product - 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 |
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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Strengths and weaknesses of Nd2Fe14B magnets.
Pros
- They have unchanged lifting capacity, and over around 10 years their performance decreases symbolically – ~1% (in testing),
- They are noted for resistance to demagnetization induced by external magnetic fields,
- Thanks to the shiny finish, the coating of Ni-Cu-Ni, gold, or silver gives an aesthetic appearance,
- Neodymium magnets deliver maximum magnetic induction on a their surface, which ensures high operational effectiveness,
- Neodymium magnets are characterized by very high magnetic induction on the magnet surface and can function (depending on the shape) even at a temperature of 230°C or more...
- Thanks to versatility in forming and the ability to adapt to unusual requirements,
- Huge importance in high-tech industry – they find application in mass storage devices, electric drive systems, precision medical tools, as well as modern systems.
- Compactness – despite small sizes they provide effective action, making them ideal for precision applications
Cons
- Brittleness is one of their disadvantages. Upon strong impact they can fracture. We recommend keeping them in a steel housing, which not only protects them against impacts but also increases their durability
- Neodymium magnets decrease 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
- Due to the susceptibility of magnets to corrosion in a humid environment, we recommend using waterproof magnets made of rubber, plastic or other material immune to moisture, when using outdoors
- Due to limitations in realizing nuts and complex forms in magnets, we recommend using cover - magnetic holder.
- Possible danger related to microscopic parts of magnets can be dangerous, if swallowed, which is particularly important in the context of child health protection. Additionally, small components of these devices can disrupt the diagnostic process medical in case of swallowing.
- High unit price – neodymium magnets are more expensive than other types of magnets (e.g. ferrite), which hinders application in large quantities
Pull force analysis
Detachment force of the magnet in optimal conditions – what contributes to it?
- on a block made of mild steel, optimally conducting the magnetic flux
- with a cross-section no less than 10 mm
- characterized by smoothness
- without any air gap between the magnet and steel
- during pulling in a direction vertical to the plane
- in stable room temperature
Practical lifting capacity: influencing factors
- Gap (betwixt the magnet and the metal), as even a microscopic clearance (e.g. 0.5 mm) can cause a decrease in force by up to 50% (this also applies to paint, rust or debris).
- Force direction – catalog parameter refers to detachment vertically. When slipping, the magnet holds much less (often approx. 20-30% of nominal force).
- Substrate thickness – for full efficiency, the steel must be adequately massive. Paper-thin metal limits the lifting capacity (the magnet "punches through" it).
- Steel grade – the best choice is pure iron steel. Hardened steels may attract less.
- Base smoothness – the smoother and more polished the surface, the larger the contact zone and higher the lifting capacity. Roughness creates an air distance.
- Operating temperature – 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 carried out on a smooth plate of suitable thickness, under perpendicular forces, whereas under shearing force the load capacity is reduced by as much as 75%. Additionally, even a minimal clearance between the magnet’s surface and the plate reduces the load capacity.
Safe handling of NdFeB magnets
Operating temperature
Avoid heat. NdFeB magnets are sensitive to heat. If you require operation above 80°C, look for HT versions (H, SH, UH).
Threat to navigation
GPS units and smartphones are highly susceptible to magnetic fields. Close proximity with a strong magnet can permanently damage the sensors in your phone.
Eye protection
Despite the nickel coating, neodymium is brittle and cannot withstand shocks. Do not hit, as the magnet may crumble into sharp, dangerous pieces.
Immense force
Handle magnets with awareness. Their immense force can shock even professionals. Be vigilant and respect their power.
Life threat
Warning for patients: Powerful magnets disrupt medical devices. Keep at least 30 cm distance or request help to work with the magnets.
Danger to the youngest
NdFeB magnets are not toys. Eating multiple magnets can lead to them pinching intestinal walls, which constitutes a severe health hazard and necessitates immediate surgery.
Allergic reactions
A percentage of the population have a sensitization to Ni, which is the standard coating for neodymium magnets. Extended handling might lead to dermatitis. We suggest wear safety gloves.
Physical harm
Large magnets can break fingers instantly. Never put your hand between two attracting surfaces.
Do not drill into magnets
Powder produced during cutting of magnets is flammable. Avoid drilling into magnets without proper cooling and knowledge.
Protect data
Very strong magnetic fields can corrupt files on payment cards, HDDs, and storage devices. Keep a distance of min. 10 cm.
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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