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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
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7729.93 zł with VAT / pcs + price for transport

6284.50 zł net + 23% VAT / pcs

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Pick up the phone and ask +48 22 499 98 98 alternatively get in touch via inquiry form through our site.
Lifting power as well as form of a magnet can be verified on our force calculator.

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Product card - 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 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%

Sustainability

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
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This separator is tasked with cleaning the product (coal, aggregate, recycling) from steel contaminants. The most common installation place is suspension over the transport belt crosswise or lengthwise. The main goal is to protect crushing machines from destruction and ensure product purity.
Ferrite separators are characterized by a deep, penetrating magnetic field. We recommend them for protecting machines against large, heavy scrap (so-called tramp iron). Neodymium versions are used for precise cleaning of raw material from small particles (food industry, plastics). 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 ensures full resistance to corrosion, water, and difficult weather conditions. The product meets standards for the food industry (HACCP/IFS/BRC).
It is a device operated manually by an operator. Just drop attracted elements (screws, wires) outside the conveyor belt area. Cleaning frequency depends on the amount of contaminants in the product - the more metal, the more often you need to clean.
We can produce a magnetic block perfectly matched to your installation and requirements. We design separators according to the orderer's requirements, taking into account material specifics. Contact us to receive a free quote and technical drawing.

Pros as well as cons of Nd2Fe14B magnets.

Benefits

Apart from their superior holding force, neodymium magnets have these key benefits:
  • They have constant strength, and over nearly ten years their attraction force decreases symbolically – ~1% (in testing),
  • Magnets perfectly protect themselves against demagnetization caused by ambient magnetic noise,
  • In other words, due to the glossy layer of gold, the element gains visual value,
  • Magnets are distinguished by excellent magnetic induction on the active area,
  • Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their shape) at temperatures up to 230°C and above...
  • Considering the potential of precise forming and customization to unique needs, NdFeB magnets can be created in a variety of forms and dimensions, which makes them more universal,
  • Wide application in high-tech industry – they are utilized in HDD drives, electromotive mechanisms, precision medical tools, and multitasking production systems.
  • Relatively small size with high pulling force – neodymium magnets offer high power in tiny dimensions, which allows their use in miniature devices

Limitations

Disadvantages of neodymium magnets:
  • Brittleness is one of their disadvantages. Upon strong impact they can fracture. We recommend keeping them in a strong case, which not only protects them against impacts but also raises their 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.
  • Due to the susceptibility of magnets to corrosion in a humid environment, we suggest using waterproof magnets made of rubber, plastic or other material resistant to moisture, when using outdoors
  • Due to limitations in realizing threads and complicated shapes in magnets, we recommend using a housing - magnetic mount.
  • Potential hazard related to microscopic parts of magnets are risky, if swallowed, which becomes key in the aspect of protecting the youngest. It is also worth noting that small components of these magnets can disrupt the diagnostic process medical in case of swallowing.
  • Due to neodymium price, their price is higher than average,

Holding force characteristics

Breakaway strength of the magnet in ideal conditions – what it depends on?

The declared magnet strength represents the maximum value, obtained under laboratory conditions, meaning:
  • using a sheet made of mild steel, serving as a magnetic yoke
  • whose transverse dimension reaches at least 10 mm
  • with a plane cleaned and smooth
  • under conditions of gap-free contact (metal-to-metal)
  • under perpendicular application of breakaway force (90-degree angle)
  • in neutral thermal conditions

Determinants of practical lifting force of a magnet

Effective lifting capacity is affected by working environment parameters, such as (from most important):
  • Gap (between the magnet and the metal), as even a microscopic distance (e.g. 0.5 mm) can cause a reduction in force by up to 50% (this also applies to varnish, rust or debris).
  • Direction of force – maximum parameter is obtained only during perpendicular pulling. The force required to slide of the magnet along the plate is standardly many times lower (approx. 1/5 of the lifting capacity).
  • Wall thickness – thin material does not allow full use of the magnet. Part of the magnetic field penetrates through instead of converting into lifting capacity.
  • Plate material – low-carbon steel attracts best. Higher carbon content decrease magnetic properties and holding force.
  • Surface finish – ideal contact is possible only on smooth steel. Any scratches and bumps create air cushions, reducing force.
  • Temperature – heating the magnet causes a temporary drop of force. It is worth remembering the maximum operating temperature for a given model.

Lifting capacity testing was performed on a smooth plate of suitable thickness, under a perpendicular pulling force, however under attempts to slide the magnet the lifting capacity is smaller. In addition, even a small distance between the magnet and the plate lowers the lifting capacity.

H&S for magnets
No play value

Neodymium magnets are not toys. Eating multiple magnets can lead to them attracting across intestines, which constitutes a direct threat to life and requires urgent medical intervention.

Do not overheat magnets

Standard neodymium magnets (grade N) undergo demagnetization when the temperature surpasses 80°C. The loss of strength is permanent.

Flammability

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

Beware of splinters

NdFeB magnets are sintered ceramics, which means they are prone to chipping. Impact of two magnets will cause them cracking into small pieces.

Warning for allergy sufferers

Nickel alert: The nickel-copper-nickel coating consists of nickel. If skin irritation occurs, immediately stop working with magnets and use protective gear.

Pacemakers

Warning for patients: Strong magnetic fields disrupt medical devices. Keep at least 30 cm distance or ask another person to work with the magnets.

Precision electronics

Note: neodymium magnets generate a field that disrupts precision electronics. Keep a safe distance from your mobile, tablet, and GPS.

Crushing force

Large magnets can smash fingers instantly. Never put your hand between two strong magnets.

Data carriers

Equipment safety: Neodymium magnets can damage payment cards and sensitive devices (pacemakers, medical aids, timepieces).

Handling rules

Before starting, check safety instructions. Sudden snapping can break the magnet or injure your hand. Be predictive.

Security! More info about risks in the article: Safety of working with magnets.