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SM 32x150 [2xM8] / N52 - magnetic separator

magnetic separator

Catalog no 130358

GTIN/EAN: 5906301813064

Diameter Ø

32 mm [±1 mm]

Height

150 mm [±1 mm]

Weight

830 g

Magnetic Flux

~ 10 000 Gauss [±5%]

528.90 with VAT / pcs + price for transport

430.00 ZŁ net + 23% VAT / pcs

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Technical of the product - SM 32x150 [2xM8] / N52 - magnetic separator

Specification / characteristics - SM 32x150 [2xM8] / N52 - magnetic separator

properties
properties values
Cat. no. 130358
GTIN/EAN 5906301813064
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 150 mm [±1 mm]
Weight 830 g
Material Type Stainless steel AISI 304 / A2
Magnetic Flux ~ 10 000 Gauss [±5%]
Size/Mount Quantity 2xM8
Polarity circumferential - 5 poles
Casing Tube Thickness 1 mm
Manufacturing Tolerance ±1 mm

Magnetic properties of material N52

Specification / characteristics SM 32x150 [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 32x150 [2xM8] / N52

Parameter Value Description / Unit
Diameter (Ø) 32 mm
Total length 150 mm (L)
Active length 114 mm
Section count 4 modules
Dead zone 36 mm (2x 18mm starter)
Weight (est.) ~917 g
Active area 115 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 (4 sections)

Chart 3: Temperature performance

Engineering data and GPSR
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: 130358-2026
Quick Unit Converter
Pulling force

Magnetic Field

Other proposals

It is the "heart" of every magnetic filter used in industry for cleaning raw materials. 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.
Metal filings stick to the surface very strongly, so cleaning requires strength or cleverness. We recommend sticking packing tape to the cluster of filings and tearing it off together with the contaminants. In industry, cover tubes (so-called Easy Clean system) are used, from which the magnetic insert slides out.
The more Gauss, the smaller and more weakly magnetic particles will be effectively caught. The economical version (8kGs) handles large pieces of metal perfectly. For the food and precision industry, we recommend the highest induction parameters.
We fulfill individual orders for bars perfectly matched to your machine or separator. The rod end is strictly adapted to the fastening system in your device. Contact us for a quote on a non-standard dimension.

Strengths and weaknesses of Nd2Fe14B magnets.

Advantages

Apart from their consistent power, neodymium magnets have these key benefits:
  • Their strength remains stable, and after around 10 years it drops only by ~1% (according to research),
  • They feature excellent resistance to weakening of magnetic properties when exposed to external fields,
  • In other words, due to the shiny layer of nickel, the element is aesthetically pleasing,
  • The surface of neodymium magnets generates a maximum magnetic field – this is a key feature,
  • Thanks to resistance to high temperature, they can operate (depending on the form) even at temperatures up to 230°C and higher...
  • Possibility of individual machining and adjusting to individual applications,
  • Universal use in electronics industry – they are commonly used in hard drives, brushless drives, diagnostic systems, and industrial machines.
  • Thanks to their power density, small magnets offer high operating force, with minimal size,

Disadvantages

Drawbacks and weaknesses of neodymium magnets: weaknesses and usage proposals
  • Brittleness is one of their disadvantages. Upon strong impact they can break. We advise keeping them in a special holder, which not only protects them against impacts but also raises their durability
  • NdFeB magnets demagnetize 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 extremely resistant to heat
  • Due to the susceptibility of magnets to corrosion in a humid environment, we advise using waterproof magnets made of rubber, plastic or other material resistant to moisture, in case of application outdoors
  • Limited ability of making nuts in the magnet and complex shapes - recommended is casing - magnetic holder.
  • Potential hazard related to microscopic parts of magnets can be dangerous, when accidentally swallowed, which is particularly important in the context of child safety. It is also worth noting that small components of these products can be problematic in diagnostics medical after entering the body.
  • Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications

Pull force analysis

Maximum holding power of the magnet – what it depends on?

Holding force of 0.00 kg is a theoretical maximum value executed under the following configuration:
  • using a sheet made of high-permeability steel, serving as a circuit closing element
  • with a thickness of at least 10 mm
  • with an polished contact surface
  • with direct contact (no impurities)
  • during detachment in a direction vertical to the mounting surface
  • at temperature approx. 20 degrees Celsius

Determinants of lifting force in real conditions

It is worth knowing that the magnet holding will differ subject to the following factors, starting with the most relevant:
  • Distance – existence of any layer (rust, tape, air) acts as an insulator, which reduces capacity steeply (even by 50% at 0.5 mm).
  • Pull-off angle – remember that the magnet has greatest strength perpendicularly. Under shear forces, the holding force drops significantly, often to levels of 20-30% of the nominal value.
  • Metal thickness – the thinner the sheet, the weaker the hold. Part of the magnetic field passes through the material instead of generating force.
  • Plate material – low-carbon steel attracts best. Alloy admixtures reduce magnetic properties and holding force.
  • Surface quality – the more even the plate, the larger the contact zone and higher the lifting capacity. Roughness acts like micro-gaps.
  • Thermal environment – temperature increase causes a temporary drop of force. Check the thermal limit for a given model.

Lifting capacity testing was conducted on plates with a smooth surface of suitable thickness, under a perpendicular pulling force, in contrast under attempts to slide the magnet the load capacity is reduced by as much as 5 times. Additionally, even a slight gap between the magnet and the plate reduces the lifting capacity.

Precautions when working with NdFeB magnets
Heat warning

Standard neodymium magnets (grade N) undergo demagnetization when the temperature exceeds 80°C. The loss of strength is permanent.

Compass and GPS

GPS units and smartphones are highly susceptible to magnetism. Close proximity with a strong magnet can permanently damage the sensors in your phone.

Do not underestimate power

Before use, read the rules. Sudden snapping can break the magnet or injure your hand. Be predictive.

No play value

Always keep magnets out of reach of children. Ingestion danger is high, and the effects of magnets connecting inside the body are life-threatening.

Pinching danger

Watch your fingers. Two large magnets will join instantly with a force of massive weight, crushing anything in their path. Be careful!

Electronic hazard

Avoid bringing magnets close to a purse, computer, or TV. The magnetism can destroy these devices and wipe information from cards.

Medical implants

Health Alert: Neodymium magnets can deactivate heart devices and defibrillators. Stay away if you have medical devices.

Avoid contact if allergic

Allergy Notice: The nickel-copper-nickel coating contains nickel. If an allergic reaction appears, cease working with magnets and wear gloves.

Combustion hazard

Mechanical processing of NdFeB material carries a risk of fire risk. Magnetic powder reacts violently with oxygen and is difficult to extinguish.

Shattering risk

Neodymium magnets are ceramic materials, which means they are fragile like glass. Impact of two magnets leads to them breaking into shards.

Danger! 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