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BM 950x180x70 [4x M8] - magnetic beam
magnetic beam
Catalog no 090225
GTIN/EAN: 5906301812609
length
950 mm [±1 mm]
Width
180 mm [±1 mm]
Height
70 mm [±1 mm]
Weight
61000 g
8564.49 ZŁ with VAT / pcs + price for transport
6963.00 ZŁ net + 23% VAT / pcs
bulk discounts:
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Technical - BM 950x180x70 [4x M8] - magnetic beam
Specification / characteristics - BM 950x180x70 [4x M8] - magnetic beam
| properties | values |
|---|---|
| Cat. no. | 090225 |
| GTIN/EAN | 5906301812609 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| length | 950 mm [±1 mm] |
| Width | 180 mm [±1 mm] |
| Height | 70 mm [±1 mm] |
| Weight | 61000 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 rare earth magnets.
Benefits
- Their magnetic field is maintained, and after approximately ten years it drops only by ~1% (according to research),
- They do not lose their magnetic properties even under external field action,
- By applying a decorative layer of silver, the element acquires an modern look,
- They feature high magnetic induction at the operating surface, which improves attraction properties,
- Due to their durability and thermal resistance, neodymium magnets are capable of operate (depending on the form) even at high temperatures reaching 230°C or more...
- Thanks to versatility in forming and the capacity to modify to complex applications,
- Huge importance in modern industrial fields – they are commonly used in mass storage devices, electric drive systems, precision medical tools, and multitasking production systems.
- Relatively small size with high pulling force – neodymium magnets offer high power in compact dimensions, which makes them useful in compact constructions
Cons
- At very strong impacts they can break, therefore we recommend placing them in special holders. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
- Neodymium magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop 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 very resistant to heat
- Magnets exposed to a humid environment can rust. Therefore while using outdoors, we advise using waterproof magnets made of rubber, plastic or other material resistant to moisture
- Due to limitations in realizing nuts and complicated forms in magnets, we recommend using casing - magnetic holder.
- Possible danger to health – tiny shards of magnets pose a threat, in case of ingestion, which gains importance in the aspect of protecting the youngest. Furthermore, tiny parts of these magnets are able to disrupt the diagnostic process medical after entering the body.
- Due to complex production process, their price is relatively high,
Lifting parameters
Best holding force of the magnet in ideal parameters – what affects it?
- using a base made of mild steel, functioning as a ideal flux conductor
- with a cross-section of at least 10 mm
- characterized by even structure
- without any insulating layer between the magnet and steel
- under axial force direction (90-degree angle)
- at temperature room level
Key elements affecting lifting force
- Air gap (betwixt the magnet and the plate), since even a very small distance (e.g. 0.5 mm) can cause a reduction in lifting capacity by up to 50% (this also applies to varnish, corrosion or dirt).
- Angle of force application – maximum parameter is available only during perpendicular pulling. The shear force of the magnet along the surface is usually many times lower (approx. 1/5 of the lifting capacity).
- Base massiveness – insufficiently thick steel does not close the flux, causing part of the power to be wasted into the air.
- Plate material – low-carbon steel gives the best results. Alloy admixtures lower magnetic properties and lifting capacity.
- Surface condition – ground elements guarantee perfect abutment, which improves force. Rough surfaces reduce efficiency.
- Thermal conditions – neodymium magnets have a negative temperature coefficient. When it is hot they lose power, and at low temperatures gain strength (up to a certain limit).
Lifting capacity testing was carried out on plates with a smooth surface of optimal thickness, under perpendicular forces, whereas under attempts to slide the magnet the lifting capacity is smaller. Moreover, even a minimal clearance between the magnet’s surface and the plate reduces the lifting capacity.
Safe handling of neodymium magnets
Precision electronics
Remember: rare earth magnets produce a field that interferes with sensitive sensors. Keep a safe distance from your mobile, device, and navigation systems.
Electronic hazard
Intense magnetic fields can corrupt files on payment cards, hard drives, and other magnetic media. Stay away of at least 10 cm.
Combustion hazard
Machining of NdFeB material poses a fire hazard. Neodymium dust reacts violently with oxygen and is hard to extinguish.
Danger to the youngest
Always keep magnets away from children. Ingestion danger is high, and the consequences of magnets clamping inside the body are life-threatening.
Physical harm
Large magnets can crush fingers in a fraction of a second. Never place your hand betwixt two strong magnets.
Nickel coating and allergies
Some people have a sensitization to nickel, which is the standard coating for NdFeB magnets. Frequent touching might lead to dermatitis. We suggest wear protective gloves.
Maximum temperature
Standard neodymium magnets (grade N) lose magnetization when the temperature goes above 80°C. The loss of strength is permanent.
Warning for heart patients
Medical warning: Strong magnets can turn off heart devices and defibrillators. Do not approach if you have medical devices.
Shattering risk
NdFeB magnets are sintered ceramics, meaning they are prone to chipping. Clashing of two magnets will cause them breaking into small pieces.
Do not underestimate power
Exercise caution. Rare earth magnets attract from a distance and connect with huge force, often quicker than you can move away.
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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