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BM 850x180x70 [4x M8] - magnetic beam
magnetic beam
Catalog no 090224
GTIN/EAN: 5906301812593
length
850 mm [±1 mm]
Width
180 mm [±1 mm]
Height
70 mm [±1 mm]
Weight
54590 g
7729.93 ZŁ with VAT / pcs + price for transport
6284.50 ZŁ net + 23% VAT / pcs
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Technical parameters - BM 850x180x70 [4x M8] - magnetic beam
Specification / characteristics - BM 850x180x70 [4x M8] - magnetic beam
| properties | values |
|---|---|
| Cat. no. | 090224 |
| GTIN/EAN | 5906301812593 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| length | 850 mm [±1 mm] |
| Width | 180 mm [±1 mm] |
| Height | 70 mm [±1 mm] |
| Weight | 54590 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% |
Environmental data
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
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Advantages as well as disadvantages of Nd2Fe14B magnets.
Pros
- They have unchanged lifting capacity, and over more than ten years their attraction force decreases symbolically – ~1% (according to theory),
- They do not lose their magnetic properties even under external field action,
- By covering with a smooth coating of nickel, the element has an elegant look,
- Magnetic induction on the surface of the magnet turns out to be strong,
- Thanks to resistance to high temperature, they are capable of working (depending on the form) even at temperatures up to 230°C and higher...
- Thanks to modularity in designing and the capacity to customize to individual projects,
- Key role in modern technologies – they are commonly used in magnetic memories, drive modules, medical equipment, also multitasking production systems.
- Thanks to efficiency per cm³, small magnets offer high operating force, occupying minimum space,
Disadvantages
- Brittleness is one of their disadvantages. Upon intense impact they can break. We recommend keeping them in a special holder, which not only secures them against impacts but also raises their durability
- Neodymium magnets lose their force under the influence of heating. As soon as 80°C is exceeded, many of them start losing their power. Therefore, we recommend our special magnets marked [AH], which maintain durability even at temperatures up to 230°C
- When exposed to humidity, magnets usually rust. For applications outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which prevent oxidation and corrosion.
- We suggest cover - magnetic mount, due to difficulties in producing threads inside the magnet and complicated shapes.
- Potential hazard resulting from small fragments of magnets can be dangerous, in case of ingestion, which is particularly important in the aspect of protecting the youngest. Furthermore, tiny parts of these products are able to be problematic in diagnostics medical when they are in the body.
- Higher cost of purchase is one of the disadvantages compared to ceramic magnets, especially in budget applications
Holding force characteristics
Magnetic strength at its maximum – what contributes to it?
- with the contact of a sheet made of low-carbon steel, ensuring full magnetic saturation
- with a thickness minimum 10 mm
- with a plane cleaned and smooth
- with total lack of distance (without paint)
- during detachment in a direction vertical to the mounting surface
- at ambient temperature room level
Lifting capacity in real conditions – factors
- Gap between surfaces – even a fraction of a millimeter of separation (caused e.g. by varnish or dirt) drastically reduces the magnet efficiency, often by half at just 0.5 mm.
- Direction of force – maximum parameter is reached only during perpendicular pulling. The force required to slide of the magnet along the plate is standardly many times smaller (approx. 1/5 of the lifting capacity).
- Substrate thickness – to utilize 100% power, the steel must be adequately massive. Thin sheet limits the lifting capacity (the magnet "punches through" it).
- Chemical composition of the base – low-carbon steel attracts best. Alloy steels decrease magnetic properties and lifting capacity.
- Surface structure – the more even the plate, the better the adhesion and higher the lifting capacity. Unevenness creates an air distance.
- Temperature influence – hot environment weakens pulling force. Too high temperature can permanently demagnetize the magnet.
Lifting capacity testing was performed on plates with a smooth surface of suitable thickness, under perpendicular forces, whereas under attempts to slide the magnet the lifting capacity is smaller. Additionally, even a minimal clearance between the magnet and the plate decreases the load capacity.
Warnings
Do not give to children
Only for adults. Small elements can be swallowed, leading to intestinal necrosis. Store away from children and animals.
Medical interference
Life threat: Neodymium magnets can turn off pacemakers and defibrillators. Do not approach if you have electronic implants.
Caution required
Handle with care. Neodymium magnets attract from a distance and connect with huge force, often faster than you can move away.
Phone sensors
Remember: neodymium magnets generate a field that disrupts sensitive sensors. Keep a safe distance from your phone, tablet, and GPS.
Nickel allergy
Nickel alert: The nickel-copper-nickel coating contains nickel. If an allergic reaction occurs, cease working with magnets and wear gloves.
Machining danger
Drilling and cutting of NdFeB material carries a risk of fire hazard. Magnetic powder reacts violently with oxygen and is hard to extinguish.
Safe distance
Avoid bringing magnets close to a purse, laptop, or TV. The magnetism can destroy these devices and erase data from cards.
Thermal limits
Avoid heat. Neodymium magnets are sensitive to heat. If you need resistance above 80°C, look for HT versions (H, SH, UH).
Crushing risk
Large magnets can break fingers instantly. Under no circumstances place your hand between two attracting surfaces.
Beware of splinters
Despite metallic appearance, neodymium is brittle and cannot withstand shocks. Do not hit, as the magnet may crumble into sharp, dangerous pieces.
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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