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BM 850x180x70 [4x M8] - magnetic beam

magnetic beam

Catalog no 090224

GTIN/EAN: 5906301812593

5.00

length

850 mm [±1 mm]

Width

180 mm [±1 mm]

Height

70 mm [±1 mm]

Weight

54590 g

see parameters »

7729.93 ZŁ with VAT / pcs + price for transport

6284.50 ZŁ net + 23% VAT / pcs

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Technical details - BM 850x180x70 [4x M8] - magnetic beam

Specification / characteristics - BM 850x180x70 [4x M8] - magnetic beam

properties
properties values
Cat. no. 090224
GTIN/EAN 5906301812593
Production/Distribution Dhit sp. z o.o.
ul. Zielona 14 05-850 Ożarów Mazowiecki PL
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

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
Technical and environmental data
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%
Ecology and recycling (GPSR)
recyclability (EoL) 100%
recycled raw materials ~10% (pre-cons)
carbon footprint low / zredukowany
waste code (EWC) 16 02 16
Safety card (GPSR)
responsible entity
Dhit sp. z o.o.
ul. Kościuszki 6A, 05-850 Ożarów Mazowiecki
tel: +48 22 499 98 98 | e-mail: bok@dhit.pl
batch number/type
id: 090224-2026
Magnet Unit Converter
Force (pull)
Field Strength
Enter your figure in one of the inputs, to see the remaining fields convert automatically.

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It is a device used to catch unwanted metals from bulk raw materials transported on a belt. It can also be mounted in a gravity channel down which raw material falls. Protects mills, crushers, and shredders from falling screws, excavator teeth, or hammers.
Ferrite separators are characterized by a deep, penetrating magnetic field. They are ideal for catching large pieces of iron (screws, nails, cans, excavator teeth) from a long distance. Neodymium separators have an extremely strong surface field, but shallower (shorter range). The decision should be made based on the type of separated material and cleanliness requirements.
We make our magnetic beams entirely of acid-resistant steel AISI 304 or 316 (on request). This guarantees hygiene and ease of cleaning, which is crucial in the food industry. It can be safely used in contact with loose food (flour, sugar, grain).
It is a device operated manually by an operator. Periodically wipe the working surface with a cloth or slide collected metal to the side. Optionally, we offer systems facilitating cleaning (Extra Clean), which speed up maintenance.
As a manufacturer, we fulfill individual orders for specific conveyor belt widths. Dimensions and mounting system are agreed with the client at the design stage. Send us dimensions of your conveyor belt and type of raw material, and we will select the appropriate solution.

Pros as well as cons of neodymium magnets.

Strengths

Besides their exceptional strength, neodymium magnets offer the following advantages:
  • They have unchanged lifting capacity, and over nearly ten years their attraction force decreases symbolically – ~1% (according to theory),
  • They have excellent resistance to weakening of magnetic properties when exposed to opposing magnetic fields,
  • By applying a shiny layer of gold, the element presents an elegant look,
  • They feature high magnetic induction at the operating surface, making them more effective,
  • Thanks to resistance to high temperature, they can operate (depending on the form) even at temperatures up to 230°C and higher...
  • Possibility of exact modeling and adjusting to defined requirements,
  • Huge importance in electronics industry – they find application in HDD drives, electromotive mechanisms, advanced medical instruments, and modern systems.
  • Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in small dimensions, which enables their usage in miniature devices

Limitations

Cons of neodymium magnets: application proposals
  • To avoid cracks under impact, we suggest using special steel holders. Such a solution secures the magnet and simultaneously improves its durability.
  • Neodymium magnets decrease their power under the influence of heating. As soon as 80°C is exceeded, many of them start losing their power. Therefore, we recommend our special magnets marked [AH], which maintain durability even at temperatures up to 230°C
  • Magnets exposed to a humid environment can rust. Therefore when using outdoors, we advise using water-impermeable magnets made of rubber, plastic or other material protecting against moisture
  • We recommend cover - magnetic mechanism, due to difficulties in producing threads inside the magnet and complex forms.
  • Possible danger resulting from small fragments of magnets are risky, in case of ingestion, which becomes key in the context of child safety. It is also worth noting that tiny parts of these magnets are able to complicate diagnosis medical when they are in the body.
  • With budget limitations the cost of neodymium magnets can be a barrier,

Holding force characteristics

Maximum magnetic pulling force – what contributes to it?

Holding force of 0.00 kg is a theoretical maximum value conducted under standard conditions:
  • with the contact of a yoke made of low-carbon steel, guaranteeing maximum field concentration
  • whose transverse dimension reaches at least 10 mm
  • characterized by lack of roughness
  • under conditions of ideal adhesion (metal-to-metal)
  • during pulling in a direction perpendicular to the plane
  • in stable room temperature

What influences lifting capacity in practice

Bear in mind that the working load will differ subject to the following factors, starting with the most relevant:
  • Air gap (between the magnet and the plate), since even a microscopic clearance (e.g. 0.5 mm) can cause a reduction in lifting capacity by up to 50% (this also applies to varnish, rust or dirt).
  • Force direction – catalog parameter refers to detachment vertically. When attempting to slide, the magnet exhibits significantly lower power (typically approx. 20-30% of nominal force).
  • Wall thickness – the thinner the sheet, the weaker the hold. Part of the magnetic field passes through the material instead of converting into lifting capacity.
  • Steel type – low-carbon steel gives the best results. Alloy admixtures reduce magnetic properties and lifting capacity.
  • Surface condition – ground elements guarantee perfect abutment, which improves field saturation. Rough surfaces weaken the grip.
  • Thermal factor – high temperature weakens magnetic field. Exceeding the limit temperature can permanently damage the magnet.

Lifting capacity was determined using a smooth steel plate of suitable thickness (min. 20 mm), under perpendicular pulling force, whereas under parallel forces the load capacity is reduced by as much as 5 times. In addition, even a small distance between the magnet and the plate lowers the holding force.

H&S for magnets
Operating temperature

Monitor thermal conditions. Exposing the magnet to high heat will permanently weaken its properties and strength.

Machining danger

Dust created during cutting of magnets is combustible. Avoid drilling into magnets unless you are an expert.

Cards and drives

Avoid bringing magnets near a purse, computer, or screen. The magnetism can destroy these devices and erase data from cards.

Nickel allergy

Medical facts indicate that the nickel plating (standard magnet coating) is a strong allergen. For allergy sufferers, refrain from touching magnets with bare hands and opt for versions in plastic housing.

Powerful field

Handle magnets with awareness. Their immense force can surprise even experienced users. Be vigilant and respect their power.

Medical interference

Medical warning: Strong magnets can turn off pacemakers and defibrillators. Do not approach if you have medical devices.

Precision electronics

A strong magnetic field negatively affects the operation of compasses in smartphones and navigation systems. Do not bring magnets near a device to prevent damaging the sensors.

This is not a toy

Adult use only. Small elements pose a choking risk, causing severe trauma. Keep out of reach of kids and pets.

Crushing force

Big blocks can break fingers in a fraction of a second. Under no circumstances put your hand betwixt two strong magnets.

Fragile material

NdFeB magnets are ceramic materials, meaning they are very brittle. Collision of two magnets leads to them cracking into small pieces.

Security! Want to know more? Check our post: Are neodymium magnets dangerous?