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SM 32x425 [2xM8] / N52 - magnetic separator

magnetic separator

Catalog no 130464

GTIN/EAN: 5906301813354

Diameter Ø

32 mm [±1 mm]

Height

425 mm [±1 mm]

Weight

2353 g

Magnetic Flux

~ 10 000 Gauss [±5%]

1340.70 with VAT / pcs + price for transport

1090.00 ZŁ net + 23% VAT / pcs

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Lifting power along with form of magnets can be analyzed using our power calculator.

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Detailed specification - SM 32x425 [2xM8] / N52 - magnetic separator

Specification / characteristics - SM 32x425 [2xM8] / N52 - magnetic separator

properties
properties values
Cat. no. 130464
GTIN/EAN 5906301813354
Production/Distribution Dhit sp. z o.o.
ul. Zielona 14 05-850 Ożarów Mazowiecki PL
Country of origin Poland / China / Germany
Customs code 85059029
Diameter Ø 32 mm [±1 mm]
Height 425 mm [±1 mm]
Weight 2353 g
Material Type Stainless steel AISI 304 / A2
Magnetic Flux ~ 10 000 Gauss [±5%]
Size/Mount Quantity 2xM8
Polarity circumferential - 16 poles
Casing Tube Thickness 1 mm
Manufacturing Tolerance ±1 mm

Magnetic properties of material N52

Specification / characteristics SM 32x425 [2xM8] / N52 - magnetic separator
properties values units
remenance Br [min. - max.] ? 14.2-14.7 kGs
remenance Br [min. - max.] ? 1420-1470 mT
coercivity bHc ? 10.8-12.5 kOe
coercivity bHc ? 860-995 kA/m
actual internal force iHc ≥ 12 kOe
actual internal force iHc ≥ 955 kA/m
energy density [min. - max.] ? 48-53 BH max MGOe
energy density [min. - max.] ? 380-422 BH max KJ/m
max. temperature ? ≤ 80 °C

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

Table 1: Rod construction
SM 32x425 [2xM8] / N52

Parameter Value Description / Unit
Diameter (Ø) 32 mm
Total length 425 mm (L)
Active length 389 mm
Section count 16 modules
Dead zone 36 mm (2x 18mm starter)
Weight (est.) ~2598 g
Active area 391 cm² (Area)
Housing material AISI 304 1.4301 (Inox)
Surface finish Ra < 0.8 µm Polished
Temp. class 80°C Standard (N)
Force loss (at max °C) -12.8% Reversible loss (physics)
Force (calculated) 41 kg (theor.)
Induction (surface) ~10 000 Gauss (Max)

Chart 2: Field profile (16 sections)

Chart 3: Temperature performance

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%
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: 130464-2026
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Pulling force

Field Strength

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This product serves to effectively catch ferromagnetic contaminants from bulk and liquid products. Its task is separation (separation) of metal filings from the transported material. Thanks to the use of strong neodymium magnets, the rod catches even metallic dust.
The outer layer is hygienic acid-resistant steel, approved for food contact. The core is a precise magnetic system generating high induction (Gauss). Such construction ensures full resistance to corrosion, water, oils, and acids.
Metal filings stick to the surface very strongly, so cleaning requires strength or cleverness. The most effective home method is using adhesive tape, which we wrap around the dirt and peel off. In industry, cover tubes (so-called Easy Clean system) are used, from which the magnetic insert slides out.
The Gauss value tells us how effectively and deeply the magnet will catch contaminants. For basic machine protection against pieces of iron, standard power is sufficient. For the food and precision industry, we recommend the highest induction parameters.
Yes, as a manufacturer, we make rods of any length and diameter (standard is dia 25mm and 32mm). The rod end is strictly adapted to the fastening system in your device. Contact us for a quote on a non-standard dimension.

Advantages and disadvantages of Nd2Fe14B magnets.

Advantages

Apart from their consistent magnetic energy, neodymium magnets have these key benefits:
  • They virtually do not lose strength, because even after 10 years the performance loss is only ~1% (according to literature),
  • They feature excellent resistance to magnetism drop when exposed to opposing magnetic fields,
  • A magnet with a shiny silver surface is more attractive,
  • The surface of neodymium magnets generates a strong magnetic field – this is a key feature,
  • Due to their durability and thermal resistance, neodymium magnets are capable of operate (depending on the shape) even at high temperatures reaching 230°C or more...
  • Thanks to modularity in forming and the ability to modify to complex applications,
  • Huge importance in modern industrial fields – they are used in magnetic memories, electric motors, medical equipment, also technologically advanced constructions.
  • Compactness – despite small sizes they provide effective action, making them ideal for precision applications

Disadvantages

Drawbacks and weaknesses of neodymium magnets: weaknesses and usage proposals
  • They are prone to damage upon too strong impacts. To avoid cracks, it is worth protecting magnets using a steel holder. Such protection not only shields the magnet but also increases its resistance to damage
  • Neodymium magnets lose force when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop of strength (a factor is the shape and dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are very resistant to heat
  • Magnets exposed to a humid environment can corrode. Therefore while using outdoors, we suggest using waterproof magnets made of rubber, plastic or other material resistant to moisture
  • We suggest casing - magnetic mount, due to difficulties in realizing threads inside the magnet and complex forms.
  • Health risk to health – tiny shards of magnets pose a threat, if swallowed, which becomes key in the context of child safety. Additionally, tiny parts of these devices are able to disrupt the diagnostic process medical when they are in the body.
  • With large orders the cost of neodymium magnets can be a barrier,

Holding force characteristics

Highest magnetic holding forcewhat it depends on?

The specified lifting capacity refers to the limit force, recorded under ideal test conditions, meaning:
  • on a plate made of mild steel, perfectly concentrating the magnetic flux
  • possessing a thickness of minimum 10 mm to avoid saturation
  • with an polished touching surface
  • without the slightest insulating layer between the magnet and steel
  • for force applied at a right angle (in the magnet axis)
  • at standard ambient temperature

Determinants of lifting force in real conditions

Real force is influenced by specific conditions, including (from most important):
  • Distance (between the magnet and the metal), as even a microscopic distance (e.g. 0.5 mm) can cause a reduction in lifting capacity by up to 50% (this also applies to varnish, rust or dirt).
  • Force direction – declared lifting capacity refers to pulling vertically. When applying parallel force, the magnet holds much less (often approx. 20-30% of nominal force).
  • Substrate thickness – to utilize 100% power, the steel must be sufficiently thick. Paper-thin metal restricts the attraction force (the magnet "punches through" it).
  • Plate material – mild steel attracts best. Higher carbon content decrease magnetic permeability and lifting capacity.
  • Surface quality – the more even the surface, the better the adhesion and higher the lifting capacity. Roughness creates an air distance.
  • Temperature – temperature increase results in weakening of induction. Check the maximum operating temperature for a given model.

Holding force was tested on a smooth steel plate of 20 mm thickness, when the force acted perpendicularly, in contrast under shearing force the lifting capacity is smaller. Additionally, even a small distance between the magnet’s surface and the plate decreases the load capacity.

Safe handling of NdFeB magnets
Nickel coating and allergies

Nickel alert: The nickel-copper-nickel coating contains nickel. If skin irritation happens, immediately stop working with magnets and wear gloves.

Protect data

Data protection: Neodymium magnets can ruin payment cards and delicate electronics (heart implants, medical aids, timepieces).

Magnetic interference

A powerful magnetic field interferes with the operation of magnetometers in smartphones and navigation systems. Maintain magnets near a device to avoid breaking the sensors.

Fire risk

Drilling and cutting of neodymium magnets poses a fire risk. Magnetic powder oxidizes rapidly with oxygen and is difficult to extinguish.

Maximum temperature

Control the heat. Exposing the magnet to high heat will destroy its magnetic structure and strength.

Material brittleness

Watch out for shards. Magnets can fracture upon violent connection, launching shards into the air. Eye protection is mandatory.

Life threat

Patients with a heart stimulator should keep an safe separation from magnets. The magnetism can disrupt the functioning of the life-saving device.

Caution required

Use magnets consciously. Their immense force can surprise even experienced users. Stay alert and respect their power.

Adults only

Neodymium magnets are not suitable for play. Swallowing a few magnets may result in them connecting inside the digestive tract, which poses a direct threat to life and necessitates immediate surgery.

Crushing force

Big blocks can smash fingers in a fraction of a second. Never place your hand between two attracting surfaces.

Danger! Looking for details? Read our article: Are neodymium magnets dangerous?
Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98