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SM 32x250 [2xM8] / N52 - magnetic separator

magnetic separator

Catalog no 130362

GTIN/EAN: 5906301813101

Diameter Ø

32 mm [±1 mm]

Height

250 mm [±1 mm]

Weight

1285 g

Magnetic Flux

~ 10 000 Gauss [±5%]

824.10 with VAT / pcs + price for transport

670.00 ZŁ net + 23% VAT / pcs

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Product card - SM 32x250 [2xM8] / N52 - magnetic separator

Specification / characteristics - SM 32x250 [2xM8] / N52 - magnetic separator

properties
properties values
Cat. no. 130362
GTIN/EAN 5906301813101
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 250 mm [±1 mm]
Weight 1285 g
Material Type Stainless steel AISI 304 / A2
Magnetic Flux ~ 10 000 Gauss [±5%]
Size/Mount Quantity 2xM8
Polarity circumferential - 9 poles
Casing Tube Thickness 1 mm
Manufacturing Tolerance ±1 mm

Magnetic properties of material N52

Specification / characteristics SM 32x250 [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
Technical and environmental data
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: 130362-2025
Measurement Calculator
Magnet pull force

Magnetic Induction

Other deals

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 construction relies on a sealed, welded stainless steel housing, polished smooth. The center is filled with NdFeB magnets and pole pieces, arranged to maximize the field on the tube surface. Thanks to this, the rod is durable, hygienic, and easy to keep clean.
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. For basic machine protection against pieces of iron, standard power is sufficient. High induction is necessary when contaminants are microscopic or weakly magnetic.
We can produce a rod of non-standard length with any mounting termination. We offer various tip options: threaded holes (e.g., M8, M10), protruding screws, flat pivots, mills, or handles. Contact us for a quote on a non-standard dimension.

Strengths as well as weaknesses of neodymium magnets.

Pros

Apart from their consistent holding force, neodymium magnets have these key benefits:
  • Their strength is maintained, and after around 10 years it drops only by ~1% (according to research),
  • They maintain their magnetic properties even under close interference source,
  • A magnet with a metallic silver surface has better aesthetics,
  • The surface of neodymium magnets generates a maximum magnetic field – this is a key feature,
  • Through (adequate) combination of ingredients, they can achieve high thermal resistance, allowing for operation at temperatures approaching 230°C and above...
  • Considering the ability of precise forming and adaptation to specialized needs, NdFeB magnets can be modeled in a broad palette of shapes and sizes, which increases their versatility,
  • Wide application in advanced technology sectors – they are utilized in data components, electric drive systems, precision medical tools, and modern systems.
  • Thanks to their power density, small magnets offer high operating force, occupying minimum space,

Cons

Disadvantages of NdFeB magnets:
  • At very strong impacts they can break, therefore we advise placing them in steel cases. A metal housing provides additional protection against damage and increases the magnet's durability.
  • NdFeB magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of strength (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 recommend using waterproof magnets made of rubber, plastic or other material immune to moisture, in case of application outdoors
  • We recommend a housing - magnetic mount, due to difficulties in producing threads inside the magnet and complicated forms.
  • Possible danger resulting from small fragments of magnets are risky, if swallowed, which becomes key in the context of child safety. It is also worth noting that tiny parts of these magnets can complicate diagnosis medical after entering the body.
  • Higher cost of purchase is one of the disadvantages compared to ceramic magnets, especially in budget applications

Lifting parameters

Magnetic strength at its maximum – what contributes to it?

The lifting capacity listed is a theoretical maximum value conducted under standard conditions:
  • using a base made of low-carbon steel, serving as a magnetic yoke
  • whose thickness reaches at least 10 mm
  • characterized by even structure
  • under conditions of ideal adhesion (metal-to-metal)
  • under perpendicular force direction (90-degree angle)
  • in stable room temperature

Impact of factors on magnetic holding capacity in practice

Effective lifting capacity is influenced by specific conditions, such as (from most important):
  • Gap (betwixt the magnet and the plate), since even a microscopic distance (e.g. 0.5 mm) can cause a drastic drop in force by up to 50% (this also applies to varnish, rust or dirt).
  • Pull-off angle – note that the magnet has greatest strength perpendicularly. Under shear forces, the capacity drops drastically, often to levels of 20-30% of the maximum value.
  • Steel thickness – insufficiently thick sheet causes magnetic saturation, causing part of the power to be lost into the air.
  • Chemical composition of the base – low-carbon steel gives the best results. Higher carbon content lower magnetic permeability and lifting capacity.
  • Surface condition – smooth surfaces guarantee perfect abutment, which improves force. Uneven metal reduce efficiency.
  • Thermal factor – hot environment weakens magnetic field. Exceeding the limit temperature can permanently demagnetize the magnet.

Lifting capacity testing was performed on plates with a smooth surface of suitable thickness, under a perpendicular pulling force, however under shearing force the load capacity is reduced by as much as fivefold. In addition, even a slight gap between the magnet’s surface and the plate decreases the load capacity.

Safety rules for work with neodymium magnets
Finger safety

Risk of injury: The pulling power is so immense that it can result in hematomas, pinching, and broken bones. Use thick gloves.

Swallowing risk

Neodymium magnets are not intended for children. Eating several magnets may result in them connecting inside the digestive tract, which constitutes a direct threat to life and necessitates urgent medical intervention.

Sensitization to coating

Certain individuals have a sensitization to nickel, which is the standard coating for NdFeB magnets. Prolonged contact might lead to skin redness. We strongly advise wear safety gloves.

Maximum temperature

Standard neodymium magnets (N-type) lose magnetization when the temperature exceeds 80°C. Damage is permanent.

Powerful field

Handle with care. Rare earth magnets act from a long distance and connect with huge force, often quicker than you can react.

GPS Danger

Navigation devices and smartphones are highly sensitive to magnetic fields. Close proximity with a powerful NdFeB magnet can decalibrate the sensors in your phone.

Pacemakers

Warning for patients: Powerful magnets affect medical devices. Maintain at least 30 cm distance or ask another person to work with the magnets.

Do not drill into magnets

Dust created during machining of magnets is flammable. Avoid drilling into magnets without proper cooling and knowledge.

Magnet fragility

Neodymium magnets are ceramic materials, meaning they are very brittle. Clashing of two magnets leads to them shattering into shards.

Protect data

Data protection: Neodymium magnets can ruin payment cards and delicate electronics (pacemakers, medical aids, mechanical watches).

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

e-mail: bok@dhit.pl

tel: +48 888 99 98 98