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BM 550x180x70 [4x M8] - magnetic beam
magnetic beam
Catalog no 090221
GTIN/EAN: 5906301812562
length
550 mm [±1 mm]
Width
180 mm [±1 mm]
Height
70 mm [±1 mm]
Weight
35320 g
5708.18 ZŁ with VAT / pcs + price for transport
4640.80 ZŁ net + 23% VAT / pcs
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Product card - BM 550x180x70 [4x M8] - magnetic beam
Specification / characteristics - BM 550x180x70 [4x M8] - magnetic beam
| properties | values |
|---|---|
| Cat. no. | 090221 |
| GTIN/EAN | 5906301812562 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| length | 550 mm [±1 mm] |
| Width | 180 mm [±1 mm] |
| Height | 70 mm [±1 mm] |
| Weight | 35320 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 |
Material specification
| 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 Nd2Fe14B magnets.
Pros
- Their power is durable, and after approximately ten years it drops only by ~1% (theoretically),
- They do not lose their magnetic properties even under external field action,
- By covering with a lustrous layer of nickel, the element acquires an proper look,
- They show high magnetic induction at the operating surface, which affects their effectiveness,
- Thanks to resistance to high temperature, they are able to function (depending on the shape) even at temperatures up to 230°C and higher...
- Possibility of accurate creating and modifying to defined applications,
- Huge importance in innovative solutions – they find application in computer drives, drive modules, medical devices, and technologically advanced constructions.
- Compactness – despite small sizes they provide effective action, making them ideal for precision applications
Weaknesses
- To avoid cracks upon strong impacts, we recommend using special steel holders. Such a solution protects the magnet and simultaneously increases its durability.
- When exposed to high temperature, neodymium magnets experience a drop in strength. Often, when the temperature exceeds 80°C, their strength decreases (depending on the size and shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
- They rust in a humid environment. For use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
- Due to limitations in creating nuts and complicated forms in magnets, we propose using casing - magnetic mount.
- Potential hazard to health – tiny shards of magnets pose a threat, if swallowed, which gains importance in the context of child health protection. Additionally, tiny parts of these magnets are able to complicate diagnosis medical after entering the body.
- With mass production the cost of neodymium magnets can be a barrier,
Lifting parameters
Highest magnetic holding force – what affects it?
- using a plate made of low-carbon steel, serving as a magnetic yoke
- with a thickness no less than 10 mm
- with an polished contact surface
- with zero gap (without paint)
- during pulling in a direction vertical to the plane
- at temperature room level
Magnet lifting force in use – key factors
- Distance (betwixt the magnet and the plate), as even a tiny clearance (e.g. 0.5 mm) leads to a reduction in lifting capacity by up to 50% (this also applies to paint, rust or debris).
- Pull-off angle – note that the magnet has greatest strength perpendicularly. Under shear forces, the capacity drops significantly, often to levels of 20-30% of the nominal value.
- Wall thickness – thin material does not allow full use of the magnet. Part of the magnetic field passes through the material instead of converting into lifting capacity.
- Chemical composition of the base – mild steel attracts best. Alloy admixtures decrease magnetic properties and holding force.
- Surface finish – ideal contact is obtained only on polished steel. Rough texture create air cushions, weakening the magnet.
- Thermal environment – heating the magnet causes a temporary drop of force. Check the thermal limit for a given model.
Holding force was tested on the plate surface of 20 mm thickness, when a perpendicular force was applied, in contrast under attempts to slide the magnet the load capacity is reduced by as much as fivefold. Moreover, even a slight gap between the magnet’s surface and the plate decreases the lifting capacity.
Warnings
Thermal limits
Watch the temperature. Exposing the magnet to high heat will destroy its magnetic structure and pulling force.
Nickel coating and allergies
Some people have a sensitization to nickel, which is the common plating for NdFeB magnets. Frequent touching may cause dermatitis. We strongly advise wear protective gloves.
Keep away from electronics
GPS units and smartphones are highly susceptible to magnetic fields. Close proximity with a powerful NdFeB magnet can decalibrate the internal compass in your phone.
Caution required
Handle magnets with awareness. Their powerful strength can surprise even experienced users. Be vigilant and do not underestimate their force.
Fire risk
Fire warning: Neodymium dust is highly flammable. Do not process magnets without safety gear as this may cause fire.
Threat to electronics
Device Safety: Strong magnets can ruin payment cards and delicate electronics (heart implants, hearing aids, mechanical watches).
Physical harm
Watch your fingers. Two powerful magnets will snap together instantly with a force of massive weight, crushing everything in their path. Be careful!
Eye protection
Despite metallic appearance, neodymium is brittle and not impact-resistant. Do not hit, as the magnet may shatter into hazardous fragments.
Pacemakers
Medical warning: Neodymium magnets can turn off pacemakers and defibrillators. Stay away if you have electronic implants.
Keep away from children
Adult use only. Tiny parts can be swallowed, causing intestinal necrosis. Keep out of reach of kids and pets.
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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