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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
bulk discounts:
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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% |
Sustainability
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
Other proposals
Advantages and disadvantages of rare earth magnets.
Advantages
- Their magnetic field remains stable, and after around 10 years it decreases only by ~1% (theoretically),
- They have excellent resistance to weakening of magnetic properties due to external fields,
- In other words, due to the reflective layer of gold, the element looks attractive,
- Neodymium magnets generate maximum magnetic induction on a contact point, which allows for strong attraction,
- Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and can function (depending on the form) even at a temperature of 230°C or more...
- Thanks to freedom in forming and the ability to customize to unusual requirements,
- Wide application in modern industrial fields – they are commonly used in data components, electric motors, medical devices, and multitasking production systems.
- Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in small dimensions, which makes them useful in miniature devices
Limitations
- At very strong impacts they can break, therefore we recommend placing them in steel cases. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
- Neodymium magnets lose their strength under the influence of heating. As soon as 80°C is exceeded, many of them start losing their force. Therefore, we recommend our special magnets marked [AH], which maintain stability even at temperatures up to 230°C
- They rust in a humid environment - during use outdoors we advise using waterproof magnets e.g. in rubber, plastic
- Due to limitations in creating nuts and complex forms in magnets, we propose using casing - magnetic mount.
- Possible danger resulting from small fragments of magnets can be dangerous, when accidentally swallowed, which becomes key in the context of child health protection. Additionally, small components of these magnets can complicate diagnosis medical when they are in the body.
- High unit price – neodymium magnets have a higher price than other types of magnets (e.g. ferrite), which increases costs of application in large quantities
Pull force analysis
Detachment force of the magnet in optimal conditions – what it depends on?
- on a plate made of mild steel, optimally conducting the magnetic field
- possessing a thickness of min. 10 mm to avoid saturation
- characterized by lack of roughness
- without any insulating layer between the magnet and steel
- under vertical force vector (90-degree angle)
- at conditions approx. 20°C
Determinants of lifting force in real conditions
- Space between surfaces – every millimeter of separation (caused e.g. by veneer or dirt) significantly weakens the pulling force, often by half at just 0.5 mm.
- Load vector – highest force is available only during perpendicular pulling. The shear force of the magnet along the plate is standardly several times lower (approx. 1/5 of the lifting capacity).
- Element thickness – to utilize 100% power, the steel must be adequately massive. Thin sheet limits the attraction force (the magnet "punches through" it).
- Material composition – not every steel reacts the same. Alloy additives weaken the attraction effect.
- Surface finish – full contact is possible only on smooth steel. Rough texture create air cushions, weakening the magnet.
- Thermal environment – temperature increase results in weakening of force. Check the thermal limit for a given model.
Lifting capacity was determined with the use of a smooth steel plate of suitable thickness (min. 20 mm), under perpendicular pulling force, in contrast under parallel forces the load capacity is reduced by as much as 75%. In addition, even a minimal clearance between the magnet and the plate lowers the load capacity.
Warnings
Power loss in heat
Control the heat. Exposing the magnet above 80 degrees Celsius will destroy its properties and strength.
Metal Allergy
Studies show that nickel (standard magnet coating) is a common allergen. If you have an allergy, avoid touching magnets with bare hands or choose coated magnets.
Shattering risk
Beware of splinters. Magnets can fracture upon violent connection, ejecting shards into the air. Eye protection is mandatory.
Mechanical processing
Dust generated during cutting of magnets is flammable. Do not drill into magnets without proper cooling and knowledge.
Danger to pacemakers
For implant holders: Strong magnetic fields disrupt medical devices. Keep minimum 30 cm distance or request help to work with the magnets.
Caution required
Handle with care. Rare earth magnets attract from a long distance and connect with massive power, often faster than you can move away.
Hand protection
Pinching hazard: The pulling power is so great that it can result in hematomas, pinching, and even bone fractures. Use thick gloves.
Compass and GPS
Note: rare earth magnets generate a field that confuses precision electronics. Maintain a separation from your mobile, device, and navigation systems.
Product not for children
Strictly store magnets out of reach of children. Ingestion danger is significant, and the consequences of magnets clamping inside the body are life-threatening.
Keep away from computers
Very strong magnetic fields can destroy records on credit 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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