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BM 450x180x70 [4x M8] - magnetic beam
magnetic beam
Catalog no 090219
GTIN/EAN: 5906301812548
length
450 mm [±1 mm]
Width
180 mm [±1 mm]
Height
70 mm [±1 mm]
Weight
28900 g
4734.89 ZŁ with VAT / pcs + price for transport
3849.50 ZŁ net + 23% VAT / pcs
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Detailed specification - BM 450x180x70 [4x M8] - magnetic beam
Specification / characteristics - BM 450x180x70 [4x M8] - magnetic beam
| properties | values |
|---|---|
| Cat. no. | 090219 |
| GTIN/EAN | 5906301812548 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| length | 450 mm [±1 mm] |
| Width | 180 mm [±1 mm] |
| Height | 70 mm [±1 mm] |
| Weight | 28900 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 |
Chemical composition
| 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 |
See also deals
![SM 32x350 [2xM8] / N42 - magnetic separator](https://cdn3.dhit.pl/graphics/products/sm-32x350-2xm8-nih.jpg "SM 32x350 [2xM8] / N42 - magnetic separator")
Pros and cons of Nd2Fe14B magnets.
Strengths
- They have stable power, and over around 10 years their attraction force decreases symbolically – ~1% (according to theory),
- Magnets perfectly defend themselves against demagnetization caused by external fields,
- The use of an aesthetic coating of noble metals (nickel, gold, silver) causes the element to have aesthetics,
- They feature high magnetic induction at the operating surface, which improves attraction properties,
- Through (adequate) combination of ingredients, they can achieve high thermal strength, allowing for operation at temperatures reaching 230°C and above...
- Possibility of individual creating as well as optimizing to complex conditions,
- Versatile presence in future technologies – they are commonly used in mass storage devices, electric motors, diagnostic systems, also other advanced devices.
- Thanks to efficiency per cm³, small magnets offer high operating force, with minimal size,
Weaknesses
- They are fragile upon heavy impacts. To avoid cracks, it is worth protecting magnets in special housings. Such protection not only shields the magnet but also improves its resistance to damage
- We warn that neodymium magnets can lose their strength 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 waterproof magnets made of rubber, plastic or other material resistant to moisture
- Limited possibility of creating threads in the magnet and complex forms - recommended is a housing - magnetic holder.
- Potential hazard resulting from small fragments of magnets can be dangerous, in case of ingestion, which gains importance in the aspect of protecting the youngest. Additionally, small elements of these devices can complicate diagnosis medical after entering the body.
- Due to expensive raw materials, their price is higher than average,
Holding force characteristics
Detachment force of the magnet in optimal conditions – what affects it?
- on a plate made of structural steel, effectively closing the magnetic flux
- with a thickness of at least 10 mm
- with a plane free of scratches
- without any insulating layer between the magnet and steel
- during pulling in a direction vertical to the plane
- in neutral thermal conditions
Practical aspects of lifting capacity – factors
- Gap (between the magnet and the metal), since even a very small clearance (e.g. 0.5 mm) can cause a reduction in lifting capacity by up to 50% (this also applies to paint, corrosion or debris).
- Pull-off angle – remember that the magnet has greatest strength perpendicularly. Under shear forces, the capacity drops significantly, often to levels of 20-30% of the maximum value.
- Plate thickness – too thin sheet does not close the flux, causing part of the flux to be escaped to the other side.
- Plate material – low-carbon steel attracts best. Higher carbon content lower magnetic permeability and holding force.
- Surface quality – the more even the plate, the better the adhesion and higher the lifting capacity. Roughness acts like micro-gaps.
- Thermal factor – high temperature weakens pulling force. Too high temperature can permanently demagnetize the magnet.
Lifting capacity testing was performed on a smooth plate of suitable thickness, under perpendicular forces, whereas under attempts to slide the magnet the holding force is lower. Additionally, even a small distance between the magnet’s surface and the plate decreases the load capacity.
Warnings
Magnets are brittle
Neodymium magnets are ceramic materials, meaning they are fragile like glass. Impact of two magnets leads to them breaking into shards.
Hand protection
Danger of trauma: The attraction force is so great that it can result in blood blisters, pinching, and even bone fractures. Use thick gloves.
Threat to navigation
A strong magnetic field interferes with the operation of magnetometers in phones and GPS navigation. Maintain magnets near a smartphone to avoid damaging the sensors.
Adults only
NdFeB magnets are not toys. Eating a few magnets can lead to them attracting across intestines, which poses a direct threat to life and necessitates urgent medical intervention.
Dust explosion hazard
Fire hazard: Neodymium dust is explosive. Do not process magnets without safety gear as this risks ignition.
Skin irritation risks
Some people experience a hypersensitivity to Ni, which is the common plating for NdFeB magnets. Prolonged contact might lead to an allergic reaction. It is best to use safety gloves.
Caution required
Before use, read the rules. Uncontrolled attraction can destroy the magnet or hurt your hand. Be predictive.
Medical implants
Life threat: Strong magnets can turn off heart devices and defibrillators. Stay away if you have medical devices.
Permanent damage
Keep cool. Neodymium magnets are susceptible to temperature. If you require operation above 80°C, inquire about special high-temperature series (H, SH, UH).
Keep away from computers
Do not bring magnets close to a purse, computer, or TV. The magnetism can irreversibly ruin these devices and erase data from cards.
Tabela kosztu i czasu dostawy
Płatność przed wysyłką:
GLS kurier
Przesyłka będzie u Ciebie za 2-3 dni
14.99 ZŁ
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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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