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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 and form of magnetic components can be estimated using our force calculator.

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Technical of the product - 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 and environmental data
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%
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: 130466-2026
Magnet Unit Converter
Magnet pull force

Magnetic Field

Other products

This product serves to effectively catch ferromagnetic contaminants from bulk and liquid products. It is mounted in chutes, hoppers, and pipelines to protect production machines from failure. High magnetic induction on the surface allows catching the finest iron particles.
The rod consists of a cover tube made of high-quality acid-resistant steel (AISI 304 or 316). The center is filled with NdFeB magnets and pole pieces, arranged to maximize the field on the tube surface. 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. The economical version (8kGs) handles large pieces of metal perfectly. 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. We offer various tip options: threaded holes (e.g., M8, M10), protruding screws, flat pivots, mills, or handles. We ensure fast realization of special orders and technical advice.

Advantages as well as disadvantages of Nd2Fe14B magnets.

Strengths

Besides their exceptional magnetic power, neodymium magnets offer the following advantages:
  • They retain magnetic properties for almost 10 years – the drop is just ~1% (according to analyses),
  • They possess excellent resistance to weakening of magnetic properties when exposed to opposing magnetic fields,
  • In other words, due to the aesthetic layer of silver, the element becomes visually attractive,
  • Magnets exhibit huge magnetic induction on the working surface,
  • 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...
  • Possibility of custom shaping and adjusting to atypical applications,
  • Fundamental importance in electronics industry – they are used in data components, electromotive mechanisms, medical devices, as well as technologically advanced constructions.
  • Thanks to their power density, small magnets offer high operating force, occupying minimum space,

Disadvantages

Problematic aspects of neodymium magnets and proposals for their use:
  • To avoid cracks under impact, we suggest using special steel housings. Such a solution protects the magnet and simultaneously improves its durability.
  • When exposed to high temperature, neodymium magnets experience a drop in strength. Often, when the temperature exceeds 80°C, their strength decreases (depending on the size, as well as shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
  • Due to the susceptibility of magnets to corrosion in a humid environment, we advise using waterproof magnets made of rubber, plastic or other material stable to moisture, in case of application outdoors
  • Due to limitations in realizing nuts and complex shapes in magnets, we recommend using a housing - magnetic holder.
  • Possible danger resulting from small fragments of magnets are risky, if swallowed, which is particularly important in the aspect of protecting the youngest. Furthermore, small components of these products can complicate diagnosis medical when they are in the body.
  • Due to expensive raw materials, their price exceeds standard values,

Pull force analysis

Breakaway strength of the magnet in ideal conditionswhat it depends on?

The lifting capacity listed is a measurement result performed under specific, ideal conditions:
  • on a plate made of mild steel, effectively closing the magnetic field
  • whose thickness reaches at least 10 mm
  • characterized by lack of roughness
  • under conditions of gap-free contact (surface-to-surface)
  • during pulling in a direction perpendicular to the plane
  • in stable room temperature

Lifting capacity in real conditions – factors

Holding efficiency is influenced by working environment parameters, including (from priority):
  • Gap (betwixt the magnet and the metal), since even a very small clearance (e.g. 0.5 mm) can cause a reduction in lifting capacity by up to 50% (this also applies to paint, corrosion or dirt).
  • Load vector – highest force is available only during perpendicular pulling. The force required to slide of the magnet along the plate is standardly several times lower (approx. 1/5 of the lifting capacity).
  • Wall thickness – the thinner the sheet, the weaker the hold. Part of the magnetic field penetrates through instead of converting into lifting capacity.
  • Metal type – not every steel reacts the same. Alloy additives weaken the interaction with the magnet.
  • Plate texture – ground elements ensure maximum contact, which improves force. Uneven metal reduce efficiency.
  • Thermal conditions – NdFeB sinters have a negative temperature coefficient. At higher temperatures they lose power, and in frost gain strength (up to a certain limit).

Lifting capacity testing was conducted on plates with a smooth surface of optimal thickness, under a perpendicular pulling force, however under attempts to slide the magnet the holding force is lower. Moreover, even a minimal clearance between the magnet’s surface and the plate lowers the load capacity.

Precautions when working with neodymium magnets
GPS Danger

GPS units and smartphones are extremely sensitive to magnetic fields. Direct contact with a strong magnet can decalibrate the internal compass in your phone.

Adults only

Adult use only. Tiny parts pose a choking risk, causing intestinal necrosis. Keep away from kids and pets.

Fire warning

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

Medical implants

Individuals with a ICD have to maintain an safe separation from magnets. The magnetic field can disrupt the functioning of the life-saving device.

Bodily injuries

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

Permanent damage

Standard neodymium magnets (grade N) lose magnetization when the temperature surpasses 80°C. The loss of strength is permanent.

Shattering risk

Beware of splinters. Magnets can explode upon violent connection, launching shards into the air. Wear goggles.

Allergy Warning

Medical facts indicate that the nickel plating (standard magnet coating) is a common allergen. For allergy sufferers, prevent touching magnets with bare hands or opt for encased magnets.

Data carriers

Powerful magnetic fields can destroy records on credit cards, hard drives, and other magnetic media. Keep a distance of min. 10 cm.

Do not underestimate power

Use magnets with awareness. Their immense force can surprise even experienced users. Be vigilant and do not underestimate their force.

Attention! More info about risks in the article: Safety of working with magnets.
Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98