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BM 510x180x70 [4x M8] - magnetic beam
magnetic beam
Catalog no 090220
GTIN/EAN: 5906301812555
length
510 mm [±1 mm]
Width
180 mm [±1 mm]
Height
70 mm [±1 mm]
Weight
32750 g
5253.21 ZŁ with VAT / pcs + price for transport
4270.90 ZŁ net + 23% VAT / pcs
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Physical properties - BM 510x180x70 [4x M8] - magnetic beam
Specification / characteristics - BM 510x180x70 [4x M8] - magnetic beam
| properties | values |
|---|---|
| Cat. no. | 090220 |
| GTIN/EAN | 5906301812555 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| length | 510 mm [±1 mm] |
| Width | 180 mm [±1 mm] |
| Height | 70 mm [±1 mm] |
| Weight | 32750 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% |
Environmental data
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
Other proposals
![UMGW 42x20x9 [M6] GW / N38 - magnetic holder internal thread](https://cdn3.dhit.pl/graphics/products/um-42x20x9-m8-gw-god.jpg "UMGW 42x20x9 [M6] GW / N38 - magnetic holder internal thread")
Strengths as well as weaknesses of Nd2Fe14B magnets.
Strengths
- They retain full power for almost 10 years – the loss is just ~1% (based on simulations),
- Magnets perfectly resist against demagnetization caused by foreign field sources,
- Thanks to the elegant finish, the layer of Ni-Cu-Ni, gold-plated, or silver-plated gives an modern appearance,
- Magnetic induction on the working part of the magnet is maximum,
- 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 versatility in forming and the ability to modify to individual projects,
- Huge importance in future technologies – they are utilized in HDD drives, electromotive mechanisms, diagnostic systems, and complex engineering applications.
- Thanks to their power density, small magnets offer high operating force, with minimal size,
Cons
- At very strong impacts they can crack, therefore we advise placing them in steel cases. A metal housing provides additional protection against damage and increases the magnet's durability.
- We warn that neodymium magnets can reduce their power at high temperatures. To prevent this, we recommend our specialized [AH] magnets, which work effectively even at 230°C.
- When exposed to humidity, magnets start to rust. For applications outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which prevent oxidation as well as corrosion.
- We suggest cover - magnetic mount, due to difficulties in producing nuts inside the magnet and complex shapes.
- Health risk related to microscopic parts of magnets pose a threat, in case of ingestion, which is particularly important in the aspect of protecting the youngest. Furthermore, tiny parts of these products can be problematic in diagnostics medical in case of swallowing.
- Higher cost of purchase is one of the disadvantages compared to ceramic magnets, especially in budget applications
Holding force characteristics
Maximum lifting force for a neodymium magnet – what it depends on?
- with the use of a yoke made of low-carbon steel, guaranteeing full magnetic saturation
- with a thickness no less than 10 mm
- with a surface cleaned and smooth
- with total lack of distance (without paint)
- for force acting at a right angle (in the magnet axis)
- at temperature approx. 20 degrees Celsius
Impact of factors on magnetic holding capacity in practice
- Distance (betwixt the magnet and the plate), because even a tiny clearance (e.g. 0.5 mm) can cause a reduction in force by up to 50% (this also applies to paint, rust or debris).
- Pull-off angle – remember that the magnet holds strongest perpendicularly. Under shear forces, the capacity drops significantly, often to levels of 20-30% of the maximum value.
- Base massiveness – insufficiently thick steel does not close the flux, causing part of the power to be escaped to the other side.
- Material type – the best choice is pure iron steel. Stainless steels may have worse magnetic properties.
- Surface condition – ground elements ensure maximum contact, which increases force. Rough surfaces weaken the grip.
- Thermal environment – temperature increase results in weakening of induction. It is worth remembering the maximum operating temperature for a given model.
Lifting capacity was determined by applying a smooth steel plate of suitable thickness (min. 20 mm), under perpendicular detachment force, in contrast under attempts to slide the magnet the load capacity is reduced by as much as 5 times. Moreover, even a slight gap between the magnet’s surface and the plate reduces the load capacity.
Precautions when working with neodymium magnets
Safe operation
Before use, check safety instructions. Sudden snapping can break the magnet or hurt your hand. Be predictive.
Physical harm
Watch your fingers. Two powerful magnets will join instantly with a force of several hundred kilograms, crushing everything in their path. Be careful!
Shattering risk
Despite the nickel coating, the material is brittle and not impact-resistant. Do not hit, as the magnet may shatter into sharp, dangerous pieces.
Heat sensitivity
Standard neodymium magnets (N-type) lose power when the temperature exceeds 80°C. This process is irreversible.
Precision electronics
Note: rare earth magnets generate a field that confuses sensitive sensors. Keep a separation from your phone, tablet, and navigation systems.
Allergy Warning
Some people suffer from a hypersensitivity to nickel, which is the common plating for neodymium magnets. Prolonged contact can result in a rash. We suggest wear protective gloves.
Combustion hazard
Drilling and cutting of neodymium magnets poses a fire risk. Magnetic powder oxidizes rapidly with oxygen and is difficult to extinguish.
Do not give to children
Always keep magnets out of reach of children. Ingestion danger is high, and the consequences of magnets connecting inside the body are life-threatening.
Electronic hazard
Equipment safety: Neodymium magnets can damage payment cards and sensitive devices (pacemakers, medical aids, mechanical watches).
Warning for heart patients
For implant holders: Powerful magnets disrupt medical devices. Maintain minimum 30 cm distance or ask another person to work with the magnets.
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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