![Plate separator BM 850x180x70 [4x M8]](https://cdn3.dhit.pl/graphics/banners/magnet.webp "Plate separator BM 850x180x70 [4x M8]")
![BM 850x180x70 [4x M8] - magnetic beam](https://cdn3.dhit.pl/graphics/products/bm-850x180x70-4x-m8-mep.jpg)
BM 850x180x70 [4x M8] - magnetic beam
magnetic beam
Catalog no 090224
GTIN/EAN: 5906301812593
length
850 mm [±1 mm]
Width
180 mm [±1 mm]
Height
70 mm [±1 mm]
Weight
54590 g
7729.93 ZŁ with VAT / pcs + price for transport
6284.50 ZŁ net + 23% VAT / pcs
bulk discounts:
Need more?
Give us a call
+48 22 499 98 98
otherwise send us a note via
our online form
through our site.
Force as well as shape of magnets can be estimated with our
modular calculator.
Orders placed before 14:00 will be shipped the same business day.
Technical parameters - BM 850x180x70 [4x M8] - magnetic beam
Specification / characteristics - BM 850x180x70 [4x M8] - magnetic beam
| properties | values |
|---|---|
| Cat. no. | 090224 |
| GTIN/EAN | 5906301812593 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| length | 850 mm [±1 mm] |
| Width | 180 mm [±1 mm] |
| Height | 70 mm [±1 mm] |
| Weight | 54590 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% |
Environmental data
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
Other deals
![AM ucho [M8] - magnetic accessories](https://cdn3.dhit.pl/graphics/products/am-ucho-m8-lib.jpg "AM ucho [M8] - magnetic accessories")
Strengths and weaknesses of Nd2Fe14B magnets.
Strengths
- They retain attractive force for around 10 years – the loss is just ~1% (based on simulations),
- Magnets effectively resist against loss of magnetization caused by external fields,
- A magnet with a smooth silver surface looks better,
- Magnetic induction on the working layer of the magnet remains very high,
- Due to their durability and thermal resistance, neodymium magnets can operate (depending on the form) even at high temperatures reaching 230°C or more...
- Possibility of detailed machining as well as optimizing to precise conditions,
- Versatile presence in modern technologies – they serve a role in computer drives, drive modules, diagnostic systems, and multitasking production systems.
- Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications
Cons
- At very strong impacts they can crack, therefore we advise placing them in special holders. A metal housing provides additional protection against damage and increases the magnet's durability.
- When exposed to high temperature, neodymium magnets suffer a drop in power. Often, when the temperature exceeds 80°C, their power 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
- When exposed to humidity, magnets start to rust. For applications outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which secure oxidation as well as corrosion.
- Limited possibility of producing nuts in the magnet and complicated shapes - preferred is casing - magnet mounting.
- Possible danger to health – tiny shards of magnets pose a threat, when accidentally swallowed, which gains importance in the context of child safety. Additionally, small components of these devices are able to be problematic in diagnostics medical in case of swallowing.
- Higher cost of purchase is one of the disadvantages compared to ceramic magnets, especially in budget applications
Holding force characteristics
Maximum lifting force for a neodymium magnet – what affects it?
- on a plate made of structural steel, effectively closing the magnetic flux
- with a cross-section minimum 10 mm
- characterized by lack of roughness
- without the slightest clearance between the magnet and steel
- during pulling in a direction vertical to the plane
- in neutral thermal conditions
Determinants of practical lifting force of a magnet
- Space between surfaces – even a fraction of a millimeter of distance (caused e.g. by veneer or dirt) significantly weakens the pulling force, often by half at just 0.5 mm.
- Force direction – catalog parameter refers to detachment vertically. When slipping, the magnet holds much less (often approx. 20-30% of nominal force).
- Plate thickness – insufficiently thick steel does not accept the full field, causing part of the power to be wasted to the other side.
- Material composition – different alloys attracts identically. Alloy additives worsen the attraction effect.
- Smoothness – ideal contact is possible only on polished steel. Any scratches and bumps reduce the real contact area, reducing force.
- Thermal factor – hot environment reduces pulling force. Too high temperature can permanently damage the magnet.
Holding force was checked on a smooth steel plate of 20 mm thickness, when the force acted perpendicularly, however under shearing force the holding force is lower. Additionally, even a small distance between the magnet’s surface and the plate reduces the lifting capacity.
Warnings
Phone sensors
A powerful magnetic field negatively affects the operation of compasses in smartphones and navigation systems. Maintain magnets close to a device to prevent breaking the sensors.
Crushing risk
Protect your hands. Two large magnets will snap together immediately with a force of massive weight, crushing anything in their path. Exercise extreme caution!
Skin irritation risks
Nickel alert: The nickel-copper-nickel coating contains nickel. If redness happens, immediately stop handling magnets and wear gloves.
Fragile material
Despite the nickel coating, neodymium is brittle and cannot withstand shocks. Do not hit, as the magnet may crumble into hazardous fragments.
This is not a toy
Adult use only. Tiny parts pose a choking risk, causing severe trauma. Keep away from kids and pets.
Life threat
Warning for patients: Strong magnetic fields disrupt electronics. Maintain at least 30 cm distance or ask another person to work with the magnets.
Powerful field
Before starting, read the rules. Uncontrolled attraction can break the magnet or hurt your hand. Think ahead.
Mechanical processing
Powder generated during cutting of magnets is combustible. Do not drill into magnets without proper cooling and knowledge.
Electronic hazard
Avoid bringing magnets close to a purse, computer, or screen. The magnetism can permanently damage these devices and erase data from cards.
Operating temperature
Standard neodymium magnets (grade N) lose power when the temperature surpasses 80°C. Damage is permanent.
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
Rate the product
Your rating