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BM 320x180x75 [M10x4] - magnetic beam

magnetic beam

Catalog no 090569

GTIN/EAN: 5906301815617

length
320 mm [±1 mm]
Width
180 mm [±1 mm]
Height
75 mm [±1 mm]
Weight
22000 g

How we measure these parameters — certificates and measurements

view specifications »

3455.40 zł net / pcs

4250.14 zł with VAT (23% VAT) / pcs

price for transport

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Quantity
Net
Gross
price from 1 pcs
3455.40 zł
4250.14 zł
price from 5 pcs
3248.08 zł
3995.13 zł

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 specification of the product - BM 320x180x75 [M10x4] - magnetic beam

Specification / characteristics - BM 320x180x75 [M10x4] - magnetic beam

properties
properties values
Cat. no. 090569
GTIN/EAN 5906301815617
Distributor Dhit sp. z o.o.
Country of origin Poland / China / Germany
Customs code 85059029
length 320 mm [±1 mm]
Width 180 mm [±1 mm]
Height 75 mm [±1 mm]
Weight 22000 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: 090569-2026
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This separator is tasked with cleaning the product (coal, aggregate, recycling) from steel contaminants. It is usually mounted above the conveyor belt (so-called overbelt) or in chutes. Protects mills, crushers, and shredders from falling screws, excavator teeth, or hammers.
Ferrite magnets work effectively at a greater distance (high suspension), but with less surface force. We recommend them for protecting machines against large, heavy scrap (so-called tramp iron). 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 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. Periodically wipe the working surface with a cloth or slide collected metal to the side. Optionally, we offer systems facilitating cleaning (Extra Clean), which speed up maintenance.
Yes, we are a manufacturer and make plate separators to any size. Dimensions and mounting system are agreed with the client at the design stage. Contact us to receive a free quote and technical drawing.

Pros as well as cons of rare earth magnets.

Pros

Besides their stability, neodymium magnets are valued for these benefits:
  • They retain magnetic properties for nearly ten years – the drop is just ~1% (in theory),
  • They feature excellent resistance to magnetic field loss when exposed to external magnetic sources,
  • In other words, due to the metallic finish of nickel, the element gains a professional look,
  • The surface of neodymium magnets generates a unique magnetic field – this is a distinguishing feature,
  • Neodymium magnets are characterized by very high magnetic induction on the magnet surface and are able to act (depending on the shape) even at a temperature of 230°C or more...
  • Possibility of exact creating as well as adapting to concrete needs,
  • Huge importance in electronics industry – they are commonly used in mass storage devices, drive modules, advanced medical instruments, as well as technologically advanced constructions.
  • Thanks to their power density, small magnets offer high operating force, with minimal size,

Disadvantages

Cons of neodymium magnets and proposals for their use:
  • 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 improves its resistance to damage
  • Heat sensitivity: observe the temperature specified for this product. Overheating may permanently weaken the magnet.
  • They oxidize in a humid environment. For use outdoors we advise using waterproof magnets e.g. in rubber, plastic
  • We suggest cover - magnetic mount, due to difficulties in creating nuts inside the magnet and complex forms.
  • Health risk related to microscopic parts of magnets pose a threat, when accidentally swallowed, 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 when they are in the body.
  • High unit price – neodymium magnets cost more than other types of magnets (e.g. ferrite), which can limit application in large quantities

Pull force analysis

Detachment force of the magnet in optimal conditions – what affects it?

The lifting capacity listed is a theoretical maximum value performed under the following configuration:
  • on a base made of mild steel, effectively closing the magnetic field
  • whose transverse dimension reaches at least 10 mm
  • with a plane free of scratches
  • with total lack of distance (without paint)
  • during pulling in a direction vertical to the plane
  • at temperature room level

Practical aspects of lifting capacity – factors

In real-world applications, the actual holding force is determined by many variables, listed from crucial:
  • Gap (between the magnet and the plate), since even a very small distance (e.g. 0.5 mm) can cause a reduction in force by up to 50% (this also applies to paint, corrosion or dirt).
  • Direction of force – highest force is reached only during perpendicular pulling. The resistance to sliding of the magnet along the plate is usually many times smaller (approx. 1/5 of the lifting capacity).
  • Substrate thickness – to utilize 100% power, the steel must be sufficiently thick. Thin sheet restricts the attraction force (the magnet "punches through" it).
  • Chemical composition of the base – low-carbon steel attracts best. Alloy admixtures decrease magnetic permeability and holding force.
  • Base smoothness – the smoother and more polished the plate, the larger the contact zone and higher the lifting capacity. Roughness creates an air distance.
  • Operating temperature – neodymium magnets have a negative temperature coefficient. When it is hot they lose power, and in frost gain strength (up to a certain limit).

Lifting capacity was measured with the use of a polished steel plate of suitable thickness (min. 20 mm), under perpendicular pulling force, however under shearing force the holding force is lower. Moreover, even a slight gap between the magnet and the plate lowers the load capacity.

H&S for magnets
Caution required

Before starting, check safety instructions. Sudden snapping can destroy the magnet or hurt your hand. Think ahead.

Dust is flammable

Powder created during cutting of magnets is combustible. Avoid drilling into magnets unless you are an expert.

Fragile material

Despite the nickel coating, the material is delicate and not impact-resistant. Avoid impacts, as the magnet may crumble into hazardous fragments.

Data carriers

Avoid bringing magnets close to a purse, computer, or TV. The magnetic field can destroy these devices and erase data from cards.

Power loss in heat

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.

Choking Hazard

Adult use only. Small elements pose a choking risk, causing severe trauma. Store out of reach of children and animals.

Life threat

Warning for patients: Strong magnetic fields affect electronics. Keep minimum 30 cm distance or request help to handle the magnets.

Crushing force

Big blocks can break fingers in a fraction of a second. Never put your hand betwixt two strong magnets.

Warning for allergy sufferers

It is widely known that the nickel plating (the usual finish) is a potent allergen. For allergy sufferers, refrain from touching magnets with bare hands or choose versions in plastic housing.

Magnetic interference

Navigation devices and smartphones are highly sensitive to magnetism. Direct contact with a strong magnet can decalibrate the sensors in your phone.

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