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SM 32x475 [2xM8] / N52 - magnetic separator

magnetic separator

Catalog no 130466

GTIN/EAN: 5906301813378

Diameter Ø

32 mm [±1 mm]

Height

475 mm [±1 mm]

Weight

2630 g

Magnetic Flux

~ 10 000 Gauss [±5%]

1488.30 with VAT / pcs + price for transport

1210.00 ZŁ net + 23% VAT / pcs

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Strength as well as structure of neodymium magnets can be verified with our magnetic mass calculator.

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Detailed specification - SM 32x475 [2xM8] / N52 - magnetic separator

Specification / characteristics - SM 32x475 [2xM8] / N52 - magnetic separator

properties
properties values
Cat. no. 130466
GTIN/EAN 5906301813378
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 475 mm [±1 mm]
Weight 2630 g
Material Type Stainless steel AISI 304 / A2
Magnetic Flux ~ 10 000 Gauss [±5%]
Size/Mount Quantity 2xM8
Polarity circumferential - 18 poles
Casing Tube Thickness 1 mm
Manufacturing Tolerance ±1 mm

Magnetic properties of material N52

Specification / characteristics SM 32x475 [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 32x475 [2xM8] / N52

Parameter Value Description / Unit
Diameter (Ø) 32 mm
Total length 475 mm (L)
Active length 439 mm
Section count 19 modules
Dead zone 36 mm (2x 18mm starter)
Weight (est.) ~2903 g
Active area 441 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 (19 sections)

Chart 3: Temperature performance

Technical specification and ecology
Material specification
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: 130466-2026
Quick Unit Converter
Magnet pull force

Magnetic Induction

Other proposals

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. High magnetic induction on the surface allows catching the finest iron particles.
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.
Due to the high power of the magnet, direct removal of filings can be troublesome and time-consuming. 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 Power versions (~12000-14000 Gs) are necessary for catching metallic dust, oxides, and stainless steel after processing.
We fulfill individual orders for bars perfectly matched to your machine or separator. You can choose a mounting method consistent with your technical design. We ensure fast realization of special orders and technical advice.

Strengths as well as weaknesses of rare earth magnets.

Advantages

Besides their remarkable pulling force, neodymium magnets offer the following advantages:
  • They do not lose power, even after nearly 10 years – the reduction in power is only ~1% (based on measurements),
  • They retain their magnetic properties even under strong external field,
  • In other words, due to the aesthetic layer of silver, the element gains visual value,
  • The surface of neodymium magnets generates a concentrated magnetic field – this is one of their assets,
  • Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their shape) at temperatures up to 230°C and above...
  • Possibility of exact forming and adjusting to atypical conditions,
  • Versatile presence in advanced technology sectors – they serve a role in data components, electric motors, diagnostic systems, also other advanced devices.
  • Compactness – despite small sizes they provide effective action, making them ideal for precision applications

Limitations

Cons of neodymium magnets and proposals for their use:
  • They are prone to damage upon heavy impacts. To avoid cracks, it is worth protecting magnets in a protective case. Such protection not only shields the magnet but also improves its resistance to damage
  • Neodymium magnets decrease their strength 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 stability even at temperatures up to 230°C
  • 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, in case of application outdoors
  • Due to limitations in producing threads and complicated forms in magnets, we recommend using a housing - magnetic holder.
  • Potential hazard related to microscopic parts of magnets pose a threat, if swallowed, which becomes key in the context of child health protection. Furthermore, tiny parts of these products are able to disrupt the diagnostic process medical after entering the body.
  • Due to expensive raw materials, their price is relatively high,

Lifting parameters

Maximum lifting capacity of the magnetwhat affects it?

The load parameter shown represents the limit force, obtained under optimal environment, meaning:
  • with the use of a yoke made of special test steel, ensuring maximum field concentration
  • possessing a thickness of at least 10 mm to avoid saturation
  • characterized by even structure
  • without any clearance between the magnet and steel
  • during pulling in a direction perpendicular to the mounting surface
  • at temperature room level

Determinants of lifting force in real conditions

Real force is influenced by specific conditions, mainly (from most important):
  • Space between surfaces – even a fraction of a millimeter of distance (caused e.g. by varnish or unevenness) significantly weakens the pulling force, often by half at just 0.5 mm.
  • Load vector – maximum parameter is obtained only during perpendicular pulling. The force required to slide of the magnet along the plate is standardly many times smaller (approx. 1/5 of the lifting capacity).
  • Base massiveness – insufficiently thick plate does not accept the full field, causing part of the power to be lost into the air.
  • Material composition – different alloys reacts the same. Alloy additives worsen the attraction effect.
  • Base smoothness – the smoother and more polished the plate, the larger the contact zone and stronger the hold. Roughness creates an air distance.
  • Thermal conditions – neodymium magnets have a negative temperature coefficient. At higher temperatures they are weaker, and in frost gain strength (up to a certain limit).

Holding force was checked on the plate surface of 20 mm thickness, when the force acted perpendicularly, in contrast under attempts to slide the magnet the lifting capacity is smaller. Moreover, even a slight gap between the magnet’s surface and the plate lowers the load capacity.

Precautions when working with neodymium magnets
Sensitization to coating

Certain individuals have a contact allergy to Ni, which is the typical protective layer for NdFeB magnets. Extended handling may cause a rash. We suggest wear protective gloves.

Fire warning

Powder created during grinding of magnets is combustible. Do not drill into magnets unless you are an expert.

Crushing force

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

Danger to the youngest

Adult use only. Small elements can be swallowed, leading to severe trauma. Store away from kids and pets.

Heat warning

Regular neodymium magnets (grade N) undergo demagnetization when the temperature goes above 80°C. This process is irreversible.

Fragile material

Despite metallic appearance, neodymium is delicate and not impact-resistant. Do not hit, as the magnet may shatter into hazardous fragments.

Handling guide

Handle magnets consciously. Their huge power can surprise even professionals. Be vigilant and respect their force.

Data carriers

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

Implant safety

For implant holders: Powerful magnets disrupt medical devices. Keep at least 30 cm distance or ask another person to work with the magnets.

Compass and GPS

Remember: neodymium magnets generate a field that disrupts precision electronics. Maintain a separation from your mobile, device, and GPS.

Warning! Details about hazards in the article: Magnet Safety Guide.
Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98