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BM 450x180x75 [M10x4] - magnetic beam

magnetic beam

Catalog no 090571

GTIN/EAN: 5906301815631

length
450 mm [±1 mm]
Width
180 mm [±1 mm]
Height
75 mm [±1 mm]
Weight
30950 g

How we measure these parameters — certificates and measurements

technical parameters »

3849.50 zł net / pcs

4734.89 zł with VAT (23% VAT) / pcs

price for transport

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Frequently asked questions

How do I choose a separator for fine contamination and check availability?
Start with the size and type of contaminant, the material flow and the working surface. Compare the magnetic-field data and dimensions stated on the selected product card, and check current availability there.
Where can I order a separator for a production line, and what should I check?
Match the device to the installation dimensions, material flow, cleaning method and housing requirements. A drawing or the dimensions of the transfer point help determine whether a catalogue model fits or a custom version is needed.
How can I verify a separator's declared magnetic parameters before purchase?
Ask for the measured value, the point of measurement and the method or instrument used. A field-strength figure without its measurement conditions cannot be compared reliably with another product.
Can a magnetic beam withstand continuous work on a production line?
Check the construction, mounting and cleaning procedure for the chosen beam. Captured metal must be removed regularly; a layer of particles can reduce effective separation even when the magnets themselves are sound.
What roller design is suitable for a dusty environment?
Check the bearing protection, surface finish and cleaning access of the selected model. Dust accumulation and abrasion depend on the installation, so specify the actual process conditions before choosing a version.
How do I choose the size of a hand-held separator?
Match the rod diameter and length to the container and material depth, and consider the tool's weight for repeated manual work. Use the dimensions and magnetic data on the current product card.
What is a hand-held separator for, and how is it different from a built-in rod?
A built-in rod stays in the process line. A hand-held separator is moved through a material sample or container and then cleaned. It is useful for spot checks or occasional cleanup when permanent installation is not required.
Which separator type suits a small production plant?
Choose by the point in the process: a grate at a hopper, a beam over a conveyor, a built-in rod in a chute or pipe, or a hand-held tool for spot checks. A magnetic gripper handles steel parts rather than separating contamination.

Guides from the knowledge base

Want to talk magnets?

Call us now +48 888 99 98 98 alternatively let us know using contact form the contact section.
Specifications and structure of a neodymium magnet can be estimated using our power calculator.

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Technical - BM 450x180x75 [M10x4] - magnetic beam

Specification / characteristics - BM 450x180x75 [M10x4] - magnetic beam

properties
properties values
Cat. no. 090571
GTIN/EAN 5906301815631
Distributor Dhit sp. z o.o.
Country of origin Poland / China / Germany
Customs code 85059029
length 450 mm [±1 mm]
Width 180 mm [±1 mm]
Height 75 mm [±1 mm]
Weight 30950 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 310 °C
Curie Temperature TF 590 °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

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%

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: 090571-2026
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It is a device used to catch unwanted metals from bulk raw materials transported on a belt. 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 is cheaper and has deeper field penetration, which is good with a thick layer of raw material. They are ideal for catching large pieces of iron (screws, nails, cans, excavator teeth) from a long distance. Neodymiums are unrivaled in catching fine filings, wires, and small screws. The choice depends on the size of contaminants and the thickness of the raw material layer on the belt.
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).
Cleaning a plate separator (static) is done manually. Scrap is removed by mechanically moving it to the edge, where the magnetic field is weaker. 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. Contact us to receive a free quote and technical drawing.

Strengths as well as weaknesses of neodymium magnets.

Advantages

Besides their high retention, neodymium magnets are valued for these benefits:
  • They have constant strength, and over nearly 10 years their attraction force decreases symbolically – ~1% (according to theory),
  • Neodymium magnets are distinguished by extremely resistant to magnetic field loss caused by external field sources,
  • The use of an elegant finish of noble metals (nickel, gold, silver) causes the element to present itself better,
  • Magnetic induction on the surface of the magnet remains maximum,
  • Neodymium magnets are characterized by very high magnetic induction on the magnet surface and can function (depending on the shape) even at a temperature of 230°C or more...
  • Due to the potential of flexible shaping and customization to individualized requirements, magnetic components can be created in a wide range of geometric configurations, which increases their versatility,
  • Fundamental importance in future technologies – they find application in computer drives, motor assemblies, medical devices, and modern systems.
  • Compactness – despite small sizes they provide effective action, making them ideal for precision applications

Weaknesses

Drawbacks and weaknesses of neodymium magnets: tips and applications.
  • They are fragile upon heavy impacts. To avoid cracks, it is worth securing magnets using a steel holder. Such protection not only protects the magnet but also increases its resistance to damage
  • Heat sensitivity: observe the temperature specified for this product. Overheating may permanently weaken the magnet.
  • Magnets exposed to a humid environment can corrode. Therefore during using outdoors, we suggest using waterproof magnets made of rubber, plastic or other material resistant to moisture
  • Due to limitations in creating threads and complex shapes in magnets, we recommend using a housing - magnetic holder.
  • Potential hazard related to microscopic parts of magnets pose a threat, when accidentally swallowed, which is particularly important in the context of child safety. Furthermore, small elements of these magnets are able to be problematic in diagnostics medical in case of swallowing.
  • High unit price – neodymium magnets have a higher price than other types of magnets (e.g. ferrite), which can limit application in large quantities

Lifting parameters

Maximum lifting force for a neodymium magnet – what contributes to it?

The specified lifting capacity concerns the maximum value, obtained under ideal test conditions, specifically:
  • using a sheet made of mild steel, acting as a circuit closing element
  • whose thickness is min. 10 mm
  • characterized by lack of roughness
  • without any air gap between the magnet and steel
  • for force applied at a right angle (in the magnet axis)
  • at room temperature

Key elements affecting lifting force

Bear in mind that the magnet holding will differ depending on elements below, in order of importance:
  • Gap between magnet and steel – even a fraction of a millimeter of separation (caused e.g. by varnish or unevenness) diminishes the magnet efficiency, often by half at just 0.5 mm.
  • Direction of force – highest force is reached only during perpendicular pulling. The resistance to sliding of the magnet along the surface is usually several times lower (approx. 1/5 of the lifting capacity).
  • Wall thickness – thin material does not allow full use of the magnet. Magnetic flux penetrates through instead of generating force.
  • Metal type – different alloys reacts the same. Alloy additives weaken the attraction effect.
  • Surface condition – ground elements ensure maximum contact, which improves force. Rough surfaces weaken the grip.
  • Thermal conditions – neodymium magnets have a negative temperature coefficient. At higher temperatures they lose power, and at low temperatures they can be stronger (up to a certain limit).

Lifting capacity was measured using a smooth steel plate of suitable thickness (min. 20 mm), under perpendicular pulling force, however under attempts to slide the magnet the load capacity is reduced by as much as 75%. In addition, even a slight gap between the magnet and the plate reduces the load capacity.

H&S for magnets
No play value

Neodymium magnets are not toys. Accidental ingestion of a few magnets may result in them connecting inside the digestive tract, which constitutes a critical condition and requires immediate surgery.

Protective goggles

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

Life threat

Individuals with a pacemaker have to maintain an absolute distance from magnets. The magnetic field can stop the functioning of the implant.

Skin irritation risks

Warning for allergy sufferers: The nickel-copper-nickel coating contains nickel. If an allergic reaction happens, immediately stop handling magnets and wear gloves.

Precision electronics

A strong magnetic field disrupts the functioning of magnetometers in smartphones and GPS navigation. Do not bring magnets near a smartphone to prevent damaging the sensors.

Magnetic media

Powerful magnetic fields can erase data on payment cards, HDDs, and other magnetic media. Keep a distance of min. 10 cm.

Machining danger

Machining of neodymium magnets poses a fire hazard. Neodymium dust oxidizes rapidly with oxygen and is hard to extinguish.

Demagnetization risk

Do not exceed the maximum operating temperature stated in the specifications of the particular product. The limit depends on the material, geometry and operating arrangement; there is no single threshold for all neodymium magnets. Overheating can permanently weaken a magnet.

Powerful field

Before use, read the rules. Sudden snapping can break the magnet or injure your hand. Think ahead.

Bodily injuries

Protect your hands. Two powerful magnets will join instantly with a force of massive weight, crushing anything in their path. Be careful!

Important! Learn more about hazards in the article: Safety of working with magnets.