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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
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Technical data - 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 |
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% |
Environmental data
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
Other products
Advantages and disadvantages of rare earth magnets.
Benefits
- They have constant strength, and over around ten years their attraction force decreases symbolically – ~1% (in testing),
- They retain their magnetic properties even under close interference source,
- By applying a decorative coating of nickel, the element has an nice look,
- Neodymium magnets achieve maximum magnetic induction on a their surface, which allows for strong attraction,
- Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their form) at temperatures up to 230°C and above...
- Due to the potential of flexible shaping and customization to custom projects, magnetic components can be created in a broad palette of geometric configurations, which increases their versatility,
- Fundamental importance in advanced technology sectors – they are utilized in hard drives, electric drive systems, medical equipment, also other advanced devices.
- Thanks to efficiency per cm³, small magnets offer high operating force, occupying minimum space,
Weaknesses
- They are prone to damage upon too strong impacts. To avoid cracks, it is worth protecting magnets in special housings. Such protection not only protects the magnet but also increases its resistance to damage
- Neodymium magnets lose strength when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening 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 extremely resistant to heat
- When exposed to humidity, magnets usually rust. To use them in conditions outside, it is recommended to use protective magnets, such as those in rubber or plastics, which secure oxidation as well as corrosion.
- We recommend a housing - magnetic mount, due to difficulties in creating threads inside the magnet and complicated forms.
- Health risk resulting from small fragments of magnets are risky, if swallowed, which becomes key in the context of child safety. Additionally, small elements of these devices are able to be problematic in diagnostics medical after entering the body.
- With mass production the cost of neodymium magnets can be a barrier,
Pull force analysis
Maximum magnetic pulling force – what it depends on?
- with the contact of a sheet made of special test steel, ensuring maximum field concentration
- with a thickness of at least 10 mm
- with an ground touching surface
- under conditions of gap-free contact (metal-to-metal)
- under perpendicular force direction (90-degree angle)
- at room temperature
Determinants of practical lifting force of a magnet
- Gap (betwixt the magnet and the plate), since even a microscopic distance (e.g. 0.5 mm) can cause a decrease in lifting capacity by up to 50% (this also applies to varnish, rust or dirt).
- Direction of force – highest force is reached only during pulling at a 90° angle. The resistance to sliding of the magnet along the surface is standardly several times smaller (approx. 1/5 of the lifting capacity).
- Base massiveness – insufficiently thick plate causes magnetic saturation, causing part of the flux to be escaped into the air.
- Steel type – mild steel gives the best results. Alloy admixtures decrease magnetic properties and holding force.
- Plate texture – smooth surfaces guarantee perfect abutment, which increases force. Uneven metal weaken the grip.
- Heat – neodymium magnets have a negative temperature coefficient. At higher temperatures they are weaker, and at low temperatures they can be stronger (up to a certain limit).
Holding force was checked on a smooth steel plate of 20 mm thickness, when a perpendicular force was applied, in contrast under shearing force the lifting capacity is smaller. Additionally, even a small distance between the magnet and the plate reduces the load capacity.
H&S for magnets
Medical interference
For implant holders: Strong magnetic fields affect electronics. Maintain at least 30 cm distance or request help to work with the magnets.
Do not underestimate power
Use magnets with awareness. Their immense force can surprise even experienced users. Be vigilant and respect their power.
Risk of cracking
NdFeB magnets are sintered ceramics, which means they are fragile like glass. Impact of two magnets will cause them cracking into small pieces.
Swallowing risk
Strictly keep magnets out of reach of children. Choking hazard is high, and the effects of magnets clamping inside the body are fatal.
Allergy Warning
Nickel alert: The Ni-Cu-Ni coating contains nickel. If an allergic reaction appears, cease working with magnets and use protective gear.
Keep away from computers
Avoid bringing magnets near a purse, computer, or screen. The magnetic field can permanently damage these devices and erase data from cards.
Dust is flammable
Powder produced during machining of magnets is flammable. Avoid drilling into magnets without proper cooling and knowledge.
Magnetic interference
A powerful magnetic field disrupts the operation of magnetometers in phones and GPS navigation. Do not bring magnets close to a smartphone to avoid breaking the sensors.
Heat sensitivity
Keep cool. NdFeB magnets are sensitive to heat. If you need resistance above 80°C, look for special high-temperature series (H, SH, UH).
Bodily injuries
Large magnets can crush fingers in a fraction of a second. Never put your hand betwixt two attracting surfaces.
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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