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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
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5708.18 zł with VAT / pcs + price for transport

4640.80 zł net + 23% VAT / pcs

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Technical - 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 and environmental data

Chemical composition

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: 090221-2026
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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. Ensures high quality of the final product in plastic recycling, wood, and the food industry.
Ferrite separators are characterized by a deep, penetrating magnetic field. We recommend them for protecting machines against large, heavy scrap (so-called tramp iron). Neodymiums are unrivaled in catching fine filings, wires, and small screws. The decision should be made based on the type of separated material and cleanliness requirements.
The construction is tightly welded from acid-resistant sheet, which guarantees tightness. This guarantees hygiene and ease of cleaning, which is crucial in the food industry. The product meets standards for the food industry (HACCP/IFS/BRC).
Cleaning a plate separator (static) is done manually. Scrap is removed by mechanically moving it to the edge, where the magnetic field is weaker. To facilitate, a cleaning overlay (dump drawer) can be used, which we offer as an option.
Yes, we are a manufacturer and make plate separators to any size. We design separators according to the orderer's requirements, taking into account material specifics. Contact us to receive a free quote and technical drawing.

Strengths and weaknesses of rare earth magnets.

Advantages

Apart from their notable magnetism, neodymium magnets have these key benefits:
  • They retain magnetic properties for around 10 years – the drop is just ~1% (in theory),
  • They maintain their magnetic properties even under strong external field,
  • A magnet with a metallic nickel surface has an effective appearance,
  • They are known for high magnetic induction at the operating surface, making them more effective,
  • Thanks to resistance to high temperature, they can operate (depending on the shape) even at temperatures up to 230°C and higher...
  • Thanks to the potential of precise shaping and customization to custom solutions, NdFeB magnets can be modeled in a broad palette of shapes and sizes, which increases their versatility,
  • Universal use in modern technologies – they find application in HDD drives, electric drive systems, precision medical tools, as well as other advanced devices.
  • Thanks to efficiency per cm³, small magnets offer high operating force, with minimal size,

Cons

Drawbacks and weaknesses of neodymium magnets: application proposals
  • Susceptibility to cracking is one of their disadvantages. Upon intense impact they can fracture. We advise keeping them in a steel housing, which not only protects them against impacts but also raises their durability
  • Neodymium magnets decrease their force 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 durability even at temperatures up to 230°C
  • Magnets exposed to a humid environment can corrode. Therefore while using outdoors, we recommend using waterproof magnets made of rubber, plastic or other material protecting against moisture
  • Due to limitations in producing nuts and complicated forms in magnets, we propose using a housing - magnetic mount.
  • Possible danger to health – tiny shards of magnets are risky, in case of ingestion, which is particularly important in the context of child safety. It is also worth noting that small elements of these devices are able to disrupt the diagnostic process medical in case of swallowing.
  • Due to expensive raw materials, their price exceeds standard values,

Holding force characteristics

Highest magnetic holding force – what it depends on?

The declared magnet strength concerns the limit force, recorded under ideal test conditions, specifically:
  • on a base made of structural steel, effectively closing the magnetic flux
  • with a cross-section of at least 10 mm
  • with an ideally smooth contact surface
  • without any air gap between the magnet and steel
  • under axial force vector (90-degree angle)
  • at temperature approx. 20 degrees Celsius

Determinants of practical lifting force of a magnet

It is worth knowing that the working load will differ influenced by the following factors, in order of importance:
  • Distance – existence of any layer (rust, dirt, gap) acts as an insulator, which reduces capacity rapidly (even by 50% at 0.5 mm).
  • Direction of force – maximum parameter is available only during pulling at a 90° angle. The resistance to sliding of the magnet along the surface is usually several times lower (approx. 1/5 of the lifting capacity).
  • Steel thickness – too thin plate does not close the flux, causing part of the power to be lost into the air.
  • Steel grade – the best choice is high-permeability steel. Hardened steels may have worse magnetic properties.
  • Plate texture – smooth surfaces guarantee perfect abutment, which increases field saturation. Uneven metal weaken the grip.
  • Thermal factor – hot environment weakens pulling force. Exceeding the limit temperature can permanently demagnetize the magnet.

Lifting capacity was assessed by applying a smooth steel plate of optimal thickness (min. 20 mm), under perpendicular pulling force, however under shearing force the holding force is lower. Additionally, even a slight gap between the magnet and the plate reduces the holding force.

H&S for magnets
Do not give to children

Always keep magnets away from children. Risk of swallowing is significant, and the consequences of magnets connecting inside the body are life-threatening.

Powerful field

Handle with care. Rare earth magnets attract from a distance and connect with massive power, often faster than you can react.

Combustion hazard

Fire hazard: Neodymium dust is explosive. Avoid machining magnets without safety gear as this risks ignition.

Medical implants

For implant holders: Powerful magnets disrupt medical devices. Maintain at least 30 cm distance or request help to handle the magnets.

Shattering risk

Beware of splinters. Magnets can fracture upon uncontrolled impact, ejecting sharp fragments into the air. Eye protection is mandatory.

Compass and GPS

GPS units and mobile phones are extremely susceptible to magnetism. Close proximity with a strong magnet can permanently damage the internal compass in your phone.

Operating temperature

Standard neodymium magnets (grade N) undergo demagnetization when the temperature exceeds 80°C. Damage is permanent.

Skin irritation risks

Certain individuals experience a hypersensitivity to nickel, which is the standard coating for neodymium magnets. Extended handling can result in an allergic reaction. We recommend wear protective gloves.

Physical harm

Risk of injury: The attraction force is so great that it can cause blood blisters, crushing, and even bone fractures. Protective gloves are recommended.

Protect data

Avoid bringing magnets close to a purse, computer, or TV. The magnetic field can irreversibly ruin these devices and wipe information from cards.

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