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BM 650x180x70 [4x M8] - magnetic beam

magnetic beam

Catalog no 090222

GTIN/EAN: 5906301812579

5.00

length

650 mm [±1 mm]

Width

180 mm [±1 mm]

Height

70 mm [±1 mm]

Weight

41750 g

product parameters »

6131.43 ZŁ with VAT / pcs + price for transport

4984.90 ZŁ net + 23% VAT / pcs

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Contact us by phone +48 888 99 98 98 otherwise let us know using contact form the contact section.
Parameters and appearance of magnets can be calculated on our power calculator.

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Technical specification of the product - BM 650x180x70 [4x M8] - magnetic beam

Specification / characteristics - BM 650x180x70 [4x M8] - magnetic beam

properties
properties values
Cat. no. 090222
GTIN/EAN 5906301812579
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 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

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
Engineering data and GPSR
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
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: 090222-2026
Measurement Calculator
Force (pull)
Field Strength
Put a figure in just one field to see the conversion in the other fields right away.

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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. The main goal is to protect crushing machines from destruction and ensure product purity.
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 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 construction is tightly welded from acid-resistant sheet, which guarantees tightness. This ensures full resistance to corrosion, water, and difficult weather conditions. Suitable for chemical, food, and pharmaceutical industries.
Removing contaminants is simple but requires periodic stopping of the process or access to the magnet. Just drop attracted elements (screws, wires) outside the conveyor belt area. To facilitate, a cleaning overlay (dump drawer) can be used, which we offer as an option.
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. Contact us to receive a free quote and technical drawing.

Strengths and weaknesses of Nd2Fe14B magnets.

Pros

Apart from their strong magnetism, neodymium magnets have these key benefits:
  • They do not lose power, even during around ten years – the drop in strength is only ~1% (based on measurements),
  • They are extremely resistant to demagnetization induced by external disturbances,
  • Thanks to the metallic finish, the plating of Ni-Cu-Ni, gold-plated, or silver gives an elegant appearance,
  • The surface of neodymium magnets generates a powerful magnetic field – this is one of their assets,
  • 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...
  • Considering the option of flexible forming and adaptation to custom requirements, neodymium magnets can be produced in a variety of forms and dimensions, which makes them more universal,
  • Universal use in advanced technology sectors – they are commonly used in mass storage devices, electromotive mechanisms, diagnostic systems, and multitasking production systems.
  • Compactness – despite small sizes they generate large force, making them ideal for precision applications

Disadvantages

Disadvantages of NdFeB magnets:
  • At strong impacts they can crack, therefore we recommend placing them in strong housings. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
  • Neodymium magnets decrease their strength under the influence of heating. As soon as 80°C is exceeded, many of them start losing their force. Therefore, we recommend our special magnets marked [AH], which maintain stability even at temperatures up to 230°C
  • When exposed to humidity, magnets usually rust. For applications outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which prevent oxidation and corrosion.
  • Due to limitations in realizing nuts and complex shapes in magnets, we propose using cover - magnetic holder.
  • Potential hazard to health – tiny shards of magnets are risky, if swallowed, which is particularly important in the aspect of protecting the youngest. Additionally, small elements of these products can disrupt the diagnostic process medical when they are in the body.
  • High unit price – neodymium magnets cost more than other types of magnets (e.g. ferrite), which increases costs of application in large quantities

Lifting parameters

Maximum magnetic pulling force – what contributes to it?

Holding force of 0.00 kg is a result of laboratory testing conducted under the following configuration:
  • using a sheet made of mild steel, acting as a ideal flux conductor
  • whose transverse dimension is min. 10 mm
  • with a plane perfectly flat
  • without the slightest clearance between the magnet and steel
  • for force applied at a right angle (pull-off, not shear)
  • at temperature room level

What influences lifting capacity in practice

During everyday use, the real power results from many variables, ranked from most significant:
  • Distance (between the magnet and the plate), as even a very small clearance (e.g. 0.5 mm) results in a decrease in lifting capacity by up to 50% (this also applies to paint, rust or debris).
  • Pull-off angle – remember that the magnet holds strongest perpendicularly. Under sliding down, the capacity drops drastically, often to levels of 20-30% of the maximum value.
  • Wall thickness – the thinner the sheet, the weaker the hold. Magnetic flux penetrates through instead of converting into lifting capacity.
  • Metal type – different alloys attracts identically. High carbon content weaken the interaction with the magnet.
  • Surface structure – the smoother and more polished the plate, the larger the contact zone and stronger the hold. 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 performed on a smooth plate of suitable thickness, under a perpendicular pulling force, in contrast under shearing force the lifting capacity is smaller. Moreover, even a small distance between the magnet and the plate lowers the lifting capacity.

Precautions when working with NdFeB magnets
GPS Danger

Navigation devices and smartphones are extremely sensitive to magnetic fields. Direct contact with a strong magnet can ruin the sensors in your phone.

Machining danger

Combustion risk: Rare earth powder is explosive. Do not process magnets without safety gear as this risks ignition.

Adults only

Always keep magnets out of reach of children. Risk of swallowing is significant, and the effects of magnets connecting inside the body are fatal.

Life threat

People with a ICD should keep an large gap from magnets. The magnetic field can interfere with the operation of the life-saving device.

Immense force

Exercise caution. Neodymium magnets attract from a distance and connect with huge force, often quicker than you can move away.

Magnetic media

Powerful magnetic fields can corrupt files on payment cards, hard drives, and storage devices. Maintain a gap of min. 10 cm.

Fragile material

Despite the nickel coating, neodymium is brittle and cannot withstand shocks. Avoid impacts, as the magnet may crumble into sharp, dangerous pieces.

Demagnetization risk

Keep cool. Neodymium magnets are susceptible to heat. If you require resistance above 80°C, ask us about special high-temperature series (H, SH, UH).

Bone fractures

Large magnets can crush fingers in a fraction of a second. Do not place your hand between two attracting surfaces.

Warning for allergy sufferers

Certain individuals suffer from a sensitization to nickel, which is the standard coating for NdFeB magnets. Prolonged contact may cause an allergic reaction. We strongly advise use protective gloves.

Attention! More info about hazards in the article: Magnet Safety Guide.