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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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Detailed specification - 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 |
Chemical composition
| 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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Strengths as well as weaknesses of Nd2Fe14B magnets.
Benefits
- They virtually do not lose strength, because even after ten years the decline in efficiency is only ~1% (based on calculations),
- They are resistant to demagnetization induced by external magnetic fields,
- By applying a reflective layer of gold, the element acquires an professional look,
- The surface of neodymium magnets generates a concentrated magnetic field – this is one of their assets,
- Thanks to resistance to high temperature, they can operate (depending on the shape) even at temperatures up to 230°C and higher...
- Possibility of accurate forming and modifying to specific applications,
- Fundamental importance in advanced technology sectors – they are commonly used in hard drives, brushless drives, medical equipment, and industrial machines.
- Compactness – despite small sizes they generate large force, making them ideal for precision applications
Cons
- At strong impacts they can crack, therefore we advise placing them in steel cases. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
- We warn that neodymium magnets can lose their power at high temperatures. To prevent this, we suggest our specialized [AH] magnets, which work effectively even at 230°C.
- They rust in a humid environment - during use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
- Due to limitations in creating threads and complicated shapes in magnets, we recommend using cover - magnetic mount.
- Potential hazard related to microscopic parts of magnets pose a threat, in case of ingestion, which becomes key in the aspect of protecting the youngest. It is also worth noting that tiny parts of these products are able to complicate diagnosis medical after entering the body.
- With mass production the cost of neodymium magnets can be a barrier,
Lifting parameters
Detachment force of the magnet in optimal conditions – what it depends on?
- on a plate made of mild steel, optimally conducting the magnetic field
- with a cross-section of at least 10 mm
- characterized by even structure
- under conditions of no distance (metal-to-metal)
- under axial application of breakaway force (90-degree angle)
- in stable room temperature
Determinants of lifting force in real conditions
- Gap between surfaces – even a fraction of a millimeter of distance (caused e.g. by veneer or dirt) drastically reduces the magnet efficiency, often by half at just 0.5 mm.
- Load vector – maximum parameter is obtained only during pulling at a 90° angle. The resistance to sliding of the magnet along the plate is usually several times lower (approx. 1/5 of the lifting capacity).
- Plate thickness – insufficiently thick sheet does not accept the full field, causing part of the flux to be wasted to the other side.
- Material type – the best choice is high-permeability steel. Cast iron may have worse magnetic properties.
- Surface finish – full contact is obtained only on smooth steel. Rough texture reduce the real contact area, reducing force.
- Thermal environment – temperature increase results in weakening of induction. Check the thermal limit for a given model.
Lifting capacity was determined using a polished steel plate of optimal thickness (min. 20 mm), under perpendicular detachment force, in contrast under parallel forces the lifting capacity is smaller. Additionally, even a small distance between the magnet and the plate reduces the load capacity.
Safety rules for work with NdFeB magnets
Nickel allergy
Warning for allergy sufferers: The nickel-copper-nickel coating consists of nickel. If an allergic reaction appears, cease handling magnets and use protective gear.
Material brittleness
NdFeB magnets are ceramic materials, meaning they are prone to chipping. Clashing of two magnets will cause them cracking into small pieces.
Bodily injuries
Watch your fingers. Two large magnets will join immediately with a force of several hundred kilograms, destroying anything in their path. Exercise extreme caution!
Thermal limits
Standard neodymium magnets (N-type) lose power when the temperature surpasses 80°C. Damage is permanent.
No play value
Strictly keep magnets out of reach of children. Choking hazard is significant, and the consequences of magnets connecting inside the body are very dangerous.
Combustion hazard
Fire warning: Neodymium dust is explosive. Do not process magnets without safety gear as this may cause fire.
Safe distance
Avoid bringing magnets near a purse, computer, or TV. The magnetic field can permanently damage these devices and wipe information from cards.
Safe operation
Before use, read the rules. Sudden snapping can break the magnet or injure your hand. Be predictive.
Keep away from electronics
GPS units and smartphones are extremely susceptible to magnetic fields. Direct contact with a strong magnet can ruin the sensors in your phone.
Warning for heart patients
Medical warning: Neodymium magnets can turn off pacemakers and defibrillators. Stay away if you have electronic implants.
Tabela kosztu i czasu dostawy
Płatność przed wysyłką:
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Płatność przy odbiorze (pobranie):
GLS kurier
Przesyłka będzie u Ciebie za 1-2 dni
23.00 ZŁ
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