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SM 32x450 [2xM8] / N52 - magnetic separator

magnetic separator

Catalog no 130465

GTIN/EAN: 5906301813361

Diameter Ø

32 mm [±1 mm]

Height

450 mm [±1 mm]

Weight

2490 g

Magnetic Flux

~ 10 000 Gauss [±5%]

1414.50 with VAT / pcs + price for transport

1150.00 ZŁ net + 23% VAT / pcs

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Lifting power along with shape of neodymium magnets can be reviewed with our force calculator.

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Physical properties - SM 32x450 [2xM8] / N52 - magnetic separator

Specification / characteristics - SM 32x450 [2xM8] / N52 - magnetic separator

properties
properties values
Cat. no. 130465
GTIN/EAN 5906301813361
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 450 mm [±1 mm]
Weight 2490 g
Material Type Stainless steel AISI 304 / A2
Magnetic Flux ~ 10 000 Gauss [±5%]
Size/Mount Quantity 2xM8
Polarity circumferential - 17 poles
Casing Tube Thickness 1 mm
Manufacturing Tolerance ±1 mm

Magnetic properties of material N52

Specification / characteristics SM 32x450 [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 32x450 [2xM8] / N52

Parameter Value Description / Unit
Diameter (Ø) 32 mm
Total length 450 mm (L)
Active length 414 mm
Section count 18 modules
Dead zone 36 mm (2x 18mm starter)
Weight (est.) ~2751 g
Active area 416 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 (18 sections)

Chart 3: Temperature performance

Engineering data and GPSR
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%
Ecology and recycling (GPSR)
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: 130465-2026
Magnet Unit Converter
Magnet pull force

Magnetic Field

Other proposals

A magnetic rod is the basic element of building grate separators and magnetic filters. 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 rod consists of a cover tube made of high-quality acid-resistant steel (AISI 304 or 316). Inside there is a stack of strong neodymium magnets arranged in a special configuration (magnetic circuit). Thanks to this, the rod is durable, hygienic, and easy to keep clean.
Metal contaminants are strongly attracted, so removing them with a bare hand or glove can be difficult. The most effective home method is using adhesive tape, which we wrap around the dirt and peel off. For easier operation, it is worth considering ordering a rod in a version with a cleaning sleeve.
Magnetic induction measured in Gauss (Gs) determines the density of magnetic flux on the rod surface. Standard rods (~8000 Gs) are sufficient for catching screws, nails, and steel shavings. High induction is necessary when contaminants are microscopic or weakly magnetic.
Yes, as a manufacturer, we make rods of any length and diameter (standard is dia 25mm and 32mm). You can choose a mounting method consistent with your technical design. Contact us for a quote on a non-standard dimension.

Pros and cons of rare earth magnets.

Pros

Besides their remarkable field intensity, neodymium magnets offer the following advantages:
  • They have stable power, and over around ten years their performance decreases symbolically – ~1% (in testing),
  • Neodymium magnets are characterized by highly resistant to loss of magnetic properties caused by external magnetic fields,
  • By applying a smooth layer of gold, the element acquires an modern look,
  • Neodymium magnets achieve maximum magnetic induction on a contact point, which increases force concentration,
  • Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and can work (depending on the shape) even at a temperature of 230°C or more...
  • Considering the possibility of precise molding and customization to individualized needs, magnetic components can be manufactured in a variety of forms and dimensions, which amplifies use scope,
  • Universal use in electronics industry – they find application in data components, electric motors, diagnostic systems, also technologically advanced constructions.
  • Compactness – despite small sizes they provide effective action, making them ideal for precision applications

Cons

Cons 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 protects the magnet but also increases its resistance to damage
  • Neodymium magnets lose power when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop of power (a factor is the shape as well as dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are extremely resistant to heat
  • Due to the susceptibility of magnets to corrosion in a humid environment, we suggest using waterproof magnets made of rubber, plastic or other material immune to moisture, when using outdoors
  • Limited ability of creating threads in the magnet and complicated forms - preferred is casing - mounting mechanism.
  • Potential hazard resulting from small fragments of magnets pose a threat, when accidentally swallowed, which is particularly important in the aspect of protecting the youngest. Additionally, small elements of these products are able to be problematic in diagnostics medical after entering the body.
  • Due to expensive raw materials, their price is higher than average,

Pull force analysis

Breakaway strength of the magnet in ideal conditionswhat affects it?

The specified lifting capacity refers to the maximum value, recorded under ideal test conditions, namely:
  • on a block made of structural steel, effectively closing the magnetic field
  • with a cross-section no less than 10 mm
  • with an ground touching surface
  • without any clearance between the magnet and steel
  • under vertical force vector (90-degree angle)
  • at ambient temperature approx. 20 degrees Celsius

Determinants of lifting force in real conditions

In practice, the actual lifting capacity is determined by many variables, listed from crucial:
  • Gap between magnet and steel – even a fraction of a millimeter of separation (caused e.g. by veneer or unevenness) significantly weakens the magnet efficiency, often by half at just 0.5 mm.
  • Angle of force application – highest force is reached only during perpendicular pulling. The shear force of the magnet along the plate is usually many times lower (approx. 1/5 of the lifting capacity).
  • Element thickness – for full efficiency, the steel must be adequately massive. Thin sheet restricts the lifting capacity (the magnet "punches through" it).
  • Steel type – mild steel gives the best results. Alloy steels lower magnetic permeability and holding force.
  • Surface finish – ideal contact is possible only on smooth steel. Rough texture reduce the real contact area, weakening the magnet.
  • Thermal conditions – NdFeB sinters have a negative temperature coefficient. When it is hot they lose power, and at low temperatures they can be stronger (up to a certain limit).

Lifting capacity testing was carried out on plates with a smooth surface of suitable thickness, under a perpendicular pulling force, however under parallel forces the load capacity is reduced by as much as 5 times. In addition, even a small distance between the magnet and the plate lowers the lifting capacity.

H&S for magnets
Fragile material

NdFeB magnets are sintered ceramics, meaning they are very brittle. Impact of two magnets leads to them breaking into small pieces.

Swallowing risk

Strictly store magnets away from children. Ingestion danger is significant, and the consequences of magnets connecting inside the body are very dangerous.

Pacemakers

Individuals with a pacemaker should maintain an large gap from magnets. The magnetic field can disrupt the functioning of the life-saving device.

Allergic reactions

Certain individuals experience a contact allergy to nickel, which is the typical protective layer for neodymium magnets. Extended handling may cause an allergic reaction. We suggest use safety gloves.

Fire warning

Fire hazard: Neodymium dust is highly flammable. Avoid machining magnets in home conditions as this risks ignition.

GPS Danger

GPS units and mobile phones are highly sensitive to magnetic fields. Close proximity with a strong magnet can permanently damage the internal compass in your phone.

Magnetic media

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

Pinching danger

Pinching hazard: The pulling power is so great that it can result in blood blisters, crushing, and even bone fractures. Use thick gloves.

Heat warning

Regular neodymium magnets (grade N) lose power when the temperature goes above 80°C. The loss of strength is permanent.

Safe operation

Before use, check safety instructions. Uncontrolled attraction can break the magnet or hurt your hand. Be predictive.

Important! Need more info? Check our post: Are neodymium magnets dangerous?
Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98