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BM 750x180x70 [4x M8] - magnetic beam
magnetic beam
Catalog no 090223
GTIN/EAN: 5906301812586
length
750 mm [±1 mm]
Width
180 mm [±1 mm]
Height
70 mm [±1 mm]
Weight
48150 g
6914.94 ZŁ with VAT / pcs + price for transport
5621.90 ZŁ net + 23% VAT / pcs
bulk discounts:
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Lifting power along with appearance of a neodymium magnet can be estimated using our
force calculator.
Orders placed before 14:00 will be shipped the same business day.
Technical data of the product - BM 750x180x70 [4x M8] - magnetic beam
Specification / characteristics - BM 750x180x70 [4x M8] - magnetic beam
| properties | values |
|---|---|
| Cat. no. | 090223 |
| GTIN/EAN | 5906301812586 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| length | 750 mm [±1 mm] |
| Width | 180 mm [±1 mm] |
| Height | 70 mm [±1 mm] |
| Weight | 48150 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 |
Other proposals
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Advantages as well as disadvantages of Nd2Fe14B magnets.
Advantages
- They do not lose strength, even over approximately 10 years – the decrease in strength is only ~1% (according to tests),
- They are resistant to demagnetization induced by external field influence,
- A magnet with a smooth nickel surface has better aesthetics,
- They feature high magnetic induction at the operating surface, making them more effective,
- Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their form) at temperatures up to 230°C and above...
- Thanks to modularity in forming and the capacity to adapt to unusual requirements,
- Universal use in future technologies – they find application in mass storage devices, drive modules, precision medical tools, and industrial machines.
- Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications
Weaknesses
- They are prone to damage upon too strong impacts. To avoid cracks, it is worth securing magnets using a steel holder. Such protection not only protects the magnet but also improves its resistance to damage
- Neodymium magnets lose force when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop of power (a factor is the shape as well as dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are very resistant to heat
- When exposed to humidity, magnets start to rust. To use them in conditions outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which secure oxidation as well as corrosion.
- We recommend cover - magnetic mount, due to difficulties in realizing nuts inside the magnet and complicated forms.
- Health risk resulting from small fragments of magnets are risky, if swallowed, which is particularly important in the context of child health protection. Additionally, small elements of these magnets can complicate diagnosis medical after entering the body.
- Higher cost of purchase is one of the disadvantages compared to ceramic magnets, especially in budget applications
Holding force characteristics
Highest magnetic holding force – what affects it?
- on a base made of mild steel, optimally conducting the magnetic field
- possessing a thickness of at least 10 mm to avoid saturation
- with an ground contact surface
- without any clearance between the magnet and steel
- during pulling in a direction vertical to the plane
- at temperature approx. 20 degrees Celsius
Lifting capacity in real conditions – factors
- Distance – existence of any layer (rust, dirt, gap) interrupts the magnetic circuit, which reduces capacity steeply (even by 50% at 0.5 mm).
- Load vector – maximum parameter is available only during pulling at a 90° angle. The force required to slide of the magnet along the surface is usually several times smaller (approx. 1/5 of the lifting capacity).
- Steel thickness – too thin sheet causes magnetic saturation, causing part of the power to be lost to the other side.
- Steel type – low-carbon steel attracts best. Higher carbon content decrease magnetic permeability and lifting capacity.
- Surface condition – smooth surfaces ensure maximum contact, which increases field saturation. Rough surfaces reduce efficiency.
- Thermal factor – hot environment reduces pulling force. Too high temperature can permanently damage the magnet.
Lifting capacity was determined with the use of a smooth steel plate of suitable thickness (min. 20 mm), under vertically applied force, however under parallel forces the load capacity is reduced by as much as fivefold. Additionally, even a minimal clearance between the magnet’s surface and the plate decreases the holding force.
H&S for magnets
Nickel coating and allergies
Nickel alert: The Ni-Cu-Ni coating contains nickel. If an allergic reaction happens, cease handling magnets and wear gloves.
Threat to electronics
Very strong magnetic fields can erase data on credit cards, HDDs, and other magnetic media. Stay away of min. 10 cm.
Keep away from electronics
Remember: rare earth magnets generate a field that disrupts sensitive sensors. Maintain a safe distance from your phone, tablet, and navigation systems.
ICD Warning
For implant holders: Strong magnetic fields affect electronics. Maintain at least 30 cm distance or ask another person to handle the magnets.
Dust is flammable
Combustion risk: Neodymium dust is explosive. Avoid machining magnets in home conditions as this risks ignition.
Shattering risk
Neodymium magnets are ceramic materials, which means they are very brittle. Collision of two magnets will cause them shattering into shards.
No play value
Only for adults. Tiny parts pose a choking risk, leading to severe trauma. Store away from children and animals.
Heat sensitivity
Keep cool. NdFeB magnets are sensitive to temperature. If you need resistance above 80°C, ask us about HT versions (H, SH, UH).
Do not underestimate power
Exercise caution. Neodymium magnets attract from a distance and snap with huge force, often quicker than you can move away.
Bodily injuries
Risk of injury: The pulling power is so great that it can cause blood blisters, crushing, and broken bones. Use thick gloves.
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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