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BM 650x180x70 [4x M8] - magnetic beam
magnetic beam
Catalog no 090222
GTIN/EAN: 5906301812579
length
650 mm [±1 mm]
Width
180 mm [±1 mm]
Height
70 mm [±1 mm]
Weight
41750 g
6131.43 ZŁ with VAT / pcs + price for transport
4984.90 ZŁ net + 23% VAT / pcs
bulk discounts:
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Technical - BM 650x180x70 [4x M8] - magnetic beam
Specification / characteristics - BM 650x180x70 [4x M8] - magnetic beam
| properties | values |
|---|---|
| Cat. no. | 090222 |
| GTIN/EAN | 5906301812579 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| length | 650 mm [±1 mm] |
| Width | 180 mm [±1 mm] |
| Height | 70 mm [±1 mm] |
| Weight | 41750 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% |
Ecology and recycling (GPSR)
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
View also proposals
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Strengths as well as weaknesses of rare earth magnets.
Pros
- They retain magnetic properties for almost 10 years – the loss is just ~1% (in theory),
- Magnets very well defend themselves against loss of magnetization caused by foreign field sources,
- The use of an aesthetic layer of noble metals (nickel, gold, silver) causes the element to have aesthetics,
- They feature high magnetic induction at the operating surface, making them more effective,
- Through (appropriate) combination of ingredients, they can achieve high thermal strength, enabling functioning at temperatures reaching 230°C and above...
- Thanks to freedom in constructing and the capacity to modify to individual projects,
- Wide application in innovative solutions – they are used in computer drives, electromotive mechanisms, precision medical tools, also technologically advanced constructions.
- Compactness – despite small sizes they generate large force, making them ideal for precision applications
Limitations
- To avoid cracks upon strong impacts, we suggest using special steel holders. Such a solution protects the magnet and simultaneously increases its durability.
- NdFeB magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop of power (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 extremely resistant to heat
- They oxidize in a humid environment. For use outdoors we advise using waterproof magnets e.g. in rubber, plastic
- Due to limitations in realizing threads and complicated forms in magnets, we recommend using casing - magnetic mount.
- Potential hazard resulting from small fragments of magnets can be dangerous, if swallowed, which becomes key in the context of child safety. Furthermore, tiny parts of these devices are able to disrupt the diagnostic process medical after entering the body.
- With budget limitations the cost of neodymium magnets is economically unviable,
Lifting parameters
Breakaway strength of the magnet in ideal conditions – what contributes to it?
- with the application of a yoke made of special test steel, guaranteeing full magnetic saturation
- whose thickness is min. 10 mm
- with an ideally smooth contact surface
- without any air gap between the magnet and steel
- for force acting at a right angle (in the magnet axis)
- at standard ambient temperature
Determinants of practical lifting force of a magnet
- Air gap (betwixt the magnet and the plate), because even a microscopic clearance (e.g. 0.5 mm) results in a reduction in force by up to 50% (this also applies to varnish, rust or debris).
- Angle of force application – maximum parameter is obtained only during pulling at a 90° angle. The shear force of the magnet along the surface is standardly several times lower (approx. 1/5 of the lifting capacity).
- Substrate thickness – for full efficiency, the steel must be adequately massive. Thin sheet limits the lifting capacity (the magnet "punches through" it).
- Material composition – different alloys reacts the same. High carbon content worsen the interaction with the magnet.
- Plate texture – ground elements ensure maximum contact, which improves field saturation. Uneven metal reduce efficiency.
- Heat – neodymium magnets have a sensitivity to temperature. When it is hot they lose power, and at low temperatures gain strength (up to a certain limit).
Lifting capacity testing was performed on a smooth plate of suitable thickness, under a perpendicular pulling force, whereas under attempts to slide the magnet the load capacity is reduced by as much as fivefold. Moreover, even a minimal clearance between the magnet and the plate decreases the holding force.
Precautions when working with neodymium magnets
Danger to pacemakers
Medical warning: Strong magnets can deactivate pacemakers and defibrillators. Stay away if you have electronic implants.
Eye protection
Despite metallic appearance, the material is brittle and cannot withstand shocks. Do not hit, as the magnet may shatter into hazardous fragments.
Operating temperature
Regular neodymium magnets (N-type) lose magnetization when the temperature surpasses 80°C. Damage is permanent.
Caution required
Use magnets with awareness. Their powerful strength can shock even professionals. Plan your moves and do not underestimate their force.
Metal Allergy
Allergy Notice: The nickel-copper-nickel coating contains nickel. If an allergic reaction appears, cease handling magnets and use protective gear.
Keep away from electronics
Be aware: rare earth magnets generate a field that interferes with precision electronics. Maintain a separation from your mobile, tablet, and GPS.
Danger to the youngest
Strictly store magnets out of reach of children. Ingestion danger is significant, and the consequences of magnets connecting inside the body are life-threatening.
Dust is flammable
Fire warning: Neodymium dust is explosive. Avoid machining magnets without safety gear as this may cause fire.
Bone fractures
Big blocks can break fingers instantly. Never put your hand between two attracting surfaces.
Data carriers
Device Safety: Strong magnets can damage payment cards and sensitive devices (pacemakers, hearing aids, mechanical watches).
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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