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SM 32x375 [2xM8] / N52 - magnetic separator

magnetic separator

Catalog no 130462

GTIN/EAN: 5906301813330

5.00

Diameter Ø

32 mm [±1 mm]

Height

375 mm [±1 mm]

Weight

2075 g

Magnetic Flux

~ 10 000 Gauss [±5%]

1193.10 with VAT / pcs + price for transport

970.00 ZŁ net + 23% VAT / pcs

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Specifications as well as form of neodymium magnets can be verified using our online calculation tool.

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Product card - SM 32x375 [2xM8] / N52 - magnetic separator

Specification / characteristics - SM 32x375 [2xM8] / N52 - magnetic separator

properties
properties values
Cat. no. 130462
GTIN/EAN 5906301813330
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 375 mm [±1 mm]
Weight 2075 g
Material Type Stainless steel AISI 304 / A2
Magnetic Flux ~ 10 000 Gauss [±5%]
Size/Mount Quantity 2xM8
Polarity circumferential - 14 poles
Casing Tube Thickness 1 mm
Manufacturing Tolerance ±1 mm

Magnetic properties of material N52

Specification / characteristics SM 32x375 [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%
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: 130462-2025
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Magnet pull force

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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 outer layer is hygienic acid-resistant steel, approved for food contact. The core is a precise magnetic system generating high induction (Gauss). Thanks to this, the rod is durable, hygienic, and easy to keep clean.
Due to the high power of the magnet, direct removal of filings can be troublesome and time-consuming. You can use compressed air or special non-magnetic strippers (rings). For easier operation, it is worth considering ordering a rod in a version with a cleaning sleeve.
The Gauss value tells us how effectively and deeply the magnet will catch contaminants. 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.

Pros as well as cons of Nd2Fe14B magnets.

Benefits

Apart from their consistent magnetic energy, neodymium magnets have these key benefits:
  • They have unchanged lifting capacity, and over nearly ten years their attraction force decreases symbolically – ~1% (according to theory),
  • Neodymium magnets prove to be exceptionally resistant to magnetic field loss caused by external field sources,
  • A magnet with a shiny silver surface looks better,
  • They show high magnetic induction at the operating surface, making them more effective,
  • Neodymium magnets are characterized by very 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 exact creating and modifying to atypical applications,
  • Fundamental importance in electronics industry – they are commonly used in HDD drives, electromotive mechanisms, medical devices, also modern systems.
  • Relatively small size with high pulling force – neodymium magnets offer high power in compact dimensions, which enables their usage in compact constructions

Disadvantages

Disadvantages of neodymium magnets:
  • To avoid cracks under impact, we recommend using special steel housings. Such a solution protects the magnet and simultaneously increases its durability.
  • Neodymium magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop 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 very resistant to heat
  • When exposed to humidity, magnets usually rust. For applications outside, it is recommended to use protective magnets, such as those in rubber or plastics, which prevent oxidation and corrosion.
  • Limited possibility of producing nuts in the magnet and complicated shapes - preferred is casing - magnet mounting.
  • Health risk resulting from small fragments of magnets are risky, in case of ingestion, which is particularly important in the aspect of protecting the youngest. Additionally, small elements of these magnets can complicate diagnosis medical when they are in the body.
  • Due to neodymium price, their price is relatively high,

Pull force analysis

Highest magnetic holding forcewhat affects it?

The specified lifting capacity concerns the maximum value, obtained under optimal environment, meaning:
  • using a plate made of low-carbon steel, serving as a circuit closing element
  • with a cross-section no less than 10 mm
  • with an polished touching surface
  • without any air gap between the magnet and steel
  • for force acting at a right angle (pull-off, not shear)
  • at temperature room level

Impact of factors on magnetic holding capacity in practice

Please note that the working load may be lower influenced by elements below, starting with the most relevant:
  • Distance – existence of any layer (rust, dirt, air) interrupts the magnetic circuit, which lowers power steeply (even by 50% at 0.5 mm).
  • Direction of force – maximum parameter is available only during perpendicular pulling. The resistance to sliding of the magnet along the surface is typically several times smaller (approx. 1/5 of the lifting capacity).
  • Steel thickness – too thin sheet does not accept the full field, causing part of the flux to be escaped into the air.
  • Chemical composition of the base – low-carbon steel attracts best. Alloy steels lower magnetic permeability and holding force.
  • Plate texture – ground elements ensure maximum contact, which increases force. Uneven metal reduce efficiency.
  • Temperature – heating the magnet results in weakening of induction. It is worth remembering the maximum operating temperature for a given model.

Lifting capacity was measured with the use of a smooth steel plate of suitable thickness (min. 20 mm), under perpendicular pulling force, whereas under attempts to slide the magnet the load capacity is reduced by as much as 5 times. Additionally, even a small distance between the magnet’s surface and the plate lowers the holding force.

Safe handling of NdFeB magnets
Danger to pacemakers

For implant holders: Powerful magnets affect medical devices. Maintain minimum 30 cm distance or ask another person to work with the magnets.

Powerful field

Exercise caution. Neodymium magnets act from a distance and connect with huge force, often quicker than you can react.

Fragile material

Watch out for shards. Magnets can fracture upon violent connection, ejecting shards into the air. We recommend safety glasses.

Maximum temperature

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

Avoid contact if allergic

Warning for allergy sufferers: The Ni-Cu-Ni coating contains nickel. If an allergic reaction occurs, immediately stop working with magnets and use protective gear.

Crushing force

Large magnets can break fingers instantly. Under no circumstances put your hand betwixt two strong magnets.

Safe distance

Avoid bringing magnets near a purse, computer, or TV. The magnetism can irreversibly ruin these devices and erase data from cards.

Impact on smartphones

A strong magnetic field disrupts the operation of compasses in phones and navigation systems. Keep magnets close to a smartphone to prevent breaking the sensors.

Danger to the youngest

Strictly store magnets away from children. Choking hazard is high, and the consequences of magnets connecting inside the body are fatal.

Dust is flammable

Powder generated during cutting of magnets is flammable. Do not drill into magnets unless you are an expert.

Caution! Looking for details? Check our post: Are neodymium magnets dangerous?
Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98