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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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Physical properties - 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% |
Sustainability
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
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Pros and cons of neodymium magnets.
Advantages
- They virtually do not lose strength, because even after 10 years the decline in efficiency is only ~1% (in laboratory conditions),
- They do not lose their magnetic properties even under external field action,
- In other words, due to the smooth surface of silver, the element looks attractive,
- Neodymium magnets create maximum magnetic induction on a contact point, which ensures high operational effectiveness,
- Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and can work (depending on the form) even at a temperature of 230°C or more...
- Thanks to freedom in forming and the capacity to customize to specific needs,
- Huge importance in innovative solutions – they serve a role in computer drives, electromotive mechanisms, medical devices, as well as complex engineering applications.
- Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in tiny dimensions, which allows their use in compact constructions
Weaknesses
- At strong impacts they can crack, therefore we advise placing them in special holders. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
- When exposed to high temperature, neodymium magnets experience a drop in force. Often, when the temperature exceeds 80°C, their strength decreases (depending on the size, as well as shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
- They oxidize in a humid environment - during use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
- Limited possibility of making nuts in the magnet and complex shapes - recommended is cover - magnet mounting.
- Potential hazard to health – tiny shards of magnets are risky, when accidentally swallowed, which gains importance in the context of child safety. Additionally, small elements of these magnets can complicate diagnosis medical when they are in the body.
- Due to neodymium price, their price is higher than average,
Holding force characteristics
Maximum lifting force for a neodymium magnet – what contributes to it?
- with the contact of a yoke made of special test steel, guaranteeing full magnetic saturation
- whose thickness reaches at least 10 mm
- with an ground contact surface
- without the slightest air gap between the magnet and steel
- under vertical application of breakaway force (90-degree angle)
- at ambient temperature room level
Determinants of lifting force in real conditions
- Distance – existence of foreign body (rust, tape, air) acts as an insulator, which reduces capacity rapidly (even by 50% at 0.5 mm).
- Direction of force – highest force is reached only during perpendicular pulling. The resistance to sliding of the magnet along the plate is usually several times lower (approx. 1/5 of the lifting capacity).
- Base massiveness – insufficiently thick steel does not close the flux, causing part of the flux to be wasted into the air.
- Steel grade – ideal substrate is high-permeability steel. Hardened steels may have worse magnetic properties.
- Smoothness – ideal contact is possible only on polished steel. Rough texture create air cushions, weakening the magnet.
- Heat – NdFeB sinters have a sensitivity to temperature. At higher temperatures they lose power, and in frost gain strength (up to a certain limit).
Holding force was measured on a smooth steel plate of 20 mm thickness, when the force acted perpendicularly, whereas under shearing force the holding force is lower. Moreover, even a minimal clearance between the magnet’s surface and the plate reduces the load capacity.
Safety rules for work with NdFeB magnets
Danger to the youngest
Only for adults. Tiny parts pose a choking risk, leading to severe trauma. Store out of reach of children and animals.
Magnetic media
Very strong magnetic fields can corrupt files on payment cards, HDDs, and storage devices. Maintain a gap of min. 10 cm.
Dust is flammable
Machining of NdFeB material carries a risk of fire risk. Neodymium dust reacts violently with oxygen and is difficult to extinguish.
Health Danger
Medical warning: Neodymium magnets can deactivate pacemakers and defibrillators. Do not approach if you have medical devices.
Material brittleness
Protect your eyes. Magnets can explode upon uncontrolled impact, launching shards into the air. We recommend safety glasses.
Handling guide
Be careful. Neodymium magnets attract from a distance and connect with massive power, often faster than you can react.
Pinching danger
Large magnets can smash fingers in a fraction of a second. Never put your hand betwixt two strong magnets.
GPS and phone interference
Note: rare earth magnets produce a field that confuses sensitive sensors. Keep a separation from your phone, device, and GPS.
Maximum temperature
Keep cool. Neodymium magnets are susceptible to heat. If you need operation above 80°C, ask us about HT versions (H, SH, UH).
Allergic reactions
Medical facts indicate that nickel (standard magnet coating) is a potent allergen. For allergy sufferers, refrain from direct skin contact or opt for encased 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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