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BM 550x180x70 [4x M8] - magnetic beam

magnetic beam

Catalog no 090221

GTIN/EAN: 5906301812562

5.00

length

550 mm [±1 mm]

Width

180 mm [±1 mm]

Height

70 mm [±1 mm]

Weight

35320 g

5708.18 with VAT / pcs + price for transport

4640.80 ZŁ net + 23% VAT / pcs

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Detailed specification - BM 550x180x70 [4x M8] - magnetic beam

Specification / characteristics - BM 550x180x70 [4x M8] - magnetic beam

properties
properties values
Cat. no. 090221
GTIN/EAN 5906301812562
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 550 mm [±1 mm]
Width 180 mm [±1 mm]
Height 70 mm [±1 mm]
Weight 35320 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 specification and ecology
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
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: 090221-2026
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Magnet pull force

Magnetic Field

Other proposals

A magnetic beam (plate separator) is a powerful industrial magnet in a stainless steel housing. 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 choice depends on the size of contaminants and the thickness of the raw material layer on the belt.
The separator housing is high-quality stainless steel, welded by TIG method. This guarantees hygiene and ease of cleaning, which is crucial in the food industry. Suitable for chemical, food, and pharmaceutical industries.
Cleaning a plate separator (static) is done manually. Just drop attracted elements (screws, wires) outside the conveyor belt area. Optionally, we offer systems facilitating cleaning (Extra Clean), which speed up maintenance.
We can produce a magnetic block perfectly matched to your installation and requirements. We adjust length, width, and mounting hole arrangement (eyes, threads). 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.

Benefits

Besides their durability, neodymium magnets are valued for these benefits:
  • They virtually do not lose strength, because even after ten years the performance loss is only ~1% (according to literature),
  • They have excellent resistance to magnetic field loss when exposed to external fields,
  • A magnet with a shiny nickel surface is more attractive,
  • Neodymium magnets create maximum magnetic induction on a their surface, which increases force concentration,
  • Neodymium magnets are characterized by very high magnetic induction on the magnet surface and can work (depending on the shape) even at a temperature of 230°C or more...
  • Thanks to modularity in forming and the capacity to adapt to unusual requirements,
  • Significant place in modern industrial fields – they are used in mass storage devices, drive modules, advanced medical instruments, and multitasking production systems.
  • Compactness – despite small sizes they generate large force, making them ideal for precision applications

Weaknesses

Disadvantages of neodymium magnets:
  • They are prone to damage upon too strong impacts. To avoid cracks, it is worth protecting magnets in a protective case. Such protection not only shields the magnet but also improves its resistance to damage
  • When exposed to high temperature, neodymium magnets experience a drop in force. Often, when the temperature exceeds 80°C, their power decreases (depending on the size, as well as shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
  • They oxidize in a humid environment - during use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
  • Due to limitations in producing nuts and complicated forms in magnets, we recommend using cover - magnetic mechanism.
  • Health risk resulting from small fragments of magnets can be dangerous, if swallowed, which becomes key in the aspect of protecting the youngest. It is also worth noting that small components of these magnets are able to be problematic in diagnostics medical after entering the body.
  • Due to complex production process, their price is relatively high,

Lifting parameters

Detachment force of the magnet in optimal conditionswhat affects it?

Magnet power was determined for ideal contact conditions, including:
  • using a plate made of mild steel, serving as a ideal flux conductor
  • whose transverse dimension is min. 10 mm
  • with an polished touching surface
  • with total lack of distance (without impurities)
  • under axial force vector (90-degree angle)
  • at room temperature

Determinants of practical lifting force of a magnet

In practice, the real power results from many variables, presented from crucial:
  • Distance (betwixt the magnet and the metal), since even a microscopic distance (e.g. 0.5 mm) results in a decrease in force by up to 50% (this also applies to varnish, corrosion or dirt).
  • Loading method – catalog parameter refers to detachment vertically. When attempting to slide, the magnet holds much less (often approx. 20-30% of nominal force).
  • Plate thickness – too thin plate causes magnetic saturation, causing part of the flux to be escaped to the other side.
  • Metal type – not every steel reacts the same. Alloy additives weaken the interaction with the magnet.
  • Surface quality – the smoother and more polished the plate, the better the adhesion and higher the lifting capacity. Unevenness acts like micro-gaps.
  • Thermal factor – hot environment reduces magnetic field. Exceeding the limit temperature can permanently damage the magnet.

Lifting capacity testing was conducted on plates with a smooth surface of optimal thickness, under perpendicular forces, however under shearing force the load capacity is reduced by as much as 75%. Additionally, even a small distance between the magnet’s surface and the plate decreases the load capacity.

Warnings
Allergic reactions

Some people experience a contact allergy to nickel, which is the common plating for NdFeB magnets. Extended handling can result in a rash. We recommend wear protective gloves.

Phone sensors

A powerful magnetic field disrupts the operation of compasses in smartphones and navigation systems. Keep magnets close to a device to prevent damaging the sensors.

Bodily injuries

Danger of trauma: The pulling power is so immense that it can cause blood blisters, pinching, and broken bones. Use thick gloves.

Eye protection

Protect your eyes. Magnets can explode upon violent connection, launching shards into the air. Eye protection is mandatory.

Safe distance

Device Safety: Strong magnets can ruin payment cards and sensitive devices (heart implants, hearing aids, timepieces).

Fire warning

Drilling and cutting of NdFeB material carries a risk of fire hazard. Neodymium dust reacts violently with oxygen and is difficult to extinguish.

Caution required

Use magnets with awareness. Their immense force can shock even experienced users. Be vigilant and do not underestimate their force.

ICD Warning

Medical warning: Neodymium magnets can deactivate pacemakers and defibrillators. Do not approach if you have electronic implants.

Maximum temperature

Standard neodymium magnets (grade N) lose power when the temperature goes above 80°C. The loss of strength is permanent.

Do not give to children

Always store magnets out of reach of children. Ingestion danger is significant, and the consequences of magnets connecting inside the body are very dangerous.

Security! Need more info? Read our article: Why are neodymium magnets dangerous?