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BM 550x180x70 [4x M8] - magnetic beam
magnetic beam
Catalog no 090221
GTIN/EAN: 5906301812562
length
550 mm [±1 mm]
Width
180 mm [±1 mm]
Height
70 mm [±1 mm]
Weight
35320 g
5708.18 ZŁ with VAT / pcs + price for transport
4640.80 ZŁ net + 23% VAT / pcs
bulk discounts:
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Detailed specification - BM 550x180x70 [4x M8] - magnetic beam
Specification / characteristics - BM 550x180x70 [4x M8] - magnetic beam
| properties | values |
|---|---|
| Cat. no. | 090221 |
| GTIN/EAN | 5906301812562 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| length | 550 mm [±1 mm] |
| Width | 180 mm [±1 mm] |
| Height | 70 mm [±1 mm] |
| Weight | 35320 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% |
Sustainability
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
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Advantages and disadvantages of rare earth magnets.
Advantages
- They retain attractive force for nearly 10 years – the drop is just ~1% (based on simulations),
- Magnets very well protect themselves against loss of magnetization caused by foreign field sources,
- In other words, due to the reflective layer of silver, the element is aesthetically pleasing,
- Magnetic induction on the working layer of the magnet remains extremely intense,
- 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 the possibility of precise molding and customization to custom solutions, neodymium magnets can be produced in a wide range of forms and dimensions, which increases their versatility,
- Versatile presence in future technologies – they are commonly used in magnetic memories, electric motors, advanced medical instruments, and multitasking production systems.
- Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in compact dimensions, which enables their usage in compact constructions
Disadvantages
- To avoid cracks upon strong impacts, we suggest using special steel housings. Such a solution secures the magnet and simultaneously improves its durability.
- NdFeB magnets lose power when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of strength (a factor is the shape and dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are extremely resistant to heat
- Magnets exposed to a humid environment can corrode. Therefore when using outdoors, we suggest using water-impermeable magnets made of rubber, plastic or other material resistant to moisture
- Due to limitations in creating threads and complicated shapes in magnets, we propose using cover - magnetic holder.
- Health risk resulting from small fragments of magnets pose a threat, if swallowed, which becomes key in the context of child safety. It is also worth noting that tiny parts of these magnets can disrupt the diagnostic process medical when they are in the body.
- Higher cost of purchase is one of the disadvantages compared to ceramic magnets, especially in budget applications
Lifting parameters
Best holding force of the magnet in ideal parameters – what it depends on?
- with the application of a yoke made of special test steel, ensuring full magnetic saturation
- with a cross-section no less than 10 mm
- with a surface perfectly flat
- without the slightest insulating layer between the magnet and steel
- under vertical application of breakaway force (90-degree angle)
- at ambient temperature room level
Practical aspects of lifting capacity – factors
- Distance – existence of any layer (rust, dirt, air) interrupts the magnetic circuit, which lowers power steeply (even by 50% at 0.5 mm).
- Direction of force – maximum parameter is available only during perpendicular pulling. The shear force of the magnet along the plate is usually many times lower (approx. 1/5 of the lifting capacity).
- Plate thickness – too thin sheet causes magnetic saturation, causing part of the power to be wasted to the other side.
- Steel type – mild steel attracts best. Higher carbon content decrease magnetic properties and lifting capacity.
- Surface condition – smooth surfaces guarantee perfect abutment, which increases field saturation. Rough surfaces reduce efficiency.
- Operating temperature – neodymium magnets have a negative temperature coefficient. When it is hot they lose power, and in frost they can be stronger (up to a certain limit).
Lifting capacity was determined by applying a steel plate with a smooth surface of optimal thickness (min. 20 mm), under perpendicular pulling force, whereas under parallel forces the holding force is lower. In addition, even a small distance between the magnet and the plate reduces the lifting capacity.
Warnings
Pinching danger
Big blocks can crush fingers in a fraction of a second. Under no circumstances place your hand betwixt two attracting surfaces.
Conscious usage
Before use, read the rules. Sudden snapping can break the magnet or hurt your hand. Think ahead.
Cards and drives
Intense magnetic fields can destroy records on credit cards, hard drives, and storage devices. Stay away of min. 10 cm.
Machining danger
Mechanical processing of NdFeB material poses a fire risk. Magnetic powder oxidizes rapidly with oxygen and is hard to extinguish.
Thermal limits
Regular neodymium magnets (N-type) lose power when the temperature goes above 80°C. Damage is permanent.
Danger to pacemakers
Health Alert: Neodymium magnets can deactivate pacemakers and defibrillators. Do not approach if you have electronic implants.
Adults only
NdFeB magnets are not suitable for play. Swallowing several magnets may result in them connecting inside the digestive tract, which constitutes a severe health hazard and necessitates immediate surgery.
Fragile material
Despite the nickel coating, the material is brittle and cannot withstand shocks. Avoid impacts, as the magnet may crumble into hazardous fragments.
Phone sensors
GPS units and mobile phones are extremely susceptible to magnetism. Direct contact with a strong magnet can permanently damage the sensors in your phone.
Warning for allergy sufferers
Studies show that nickel (the usual finish) is a strong allergen. For allergy sufferers, prevent direct skin contact and choose versions in plastic housing.
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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