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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%]

1316.10 with VAT / pcs + price for transport

1070.00 ZŁ net + 23% VAT / pcs

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Technical of the product - 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

Table 1: Rod construction
SM 32x375 [2xM8] / N52

Parameter Value Description / Unit
Diameter (Ø) 32 mm
Total length 375 mm (L)
Active length 339 mm
Section count 14 modules
Dead zone 36 mm (2x 18mm starter)
Weight (est.) ~2292 g
Active area 341 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 (14 sections)

Chart 3: Temperature performance

Technical specification and ecology
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%
Environmental data
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: 130462-2026
Measurement Calculator
Pulling force

Magnetic Induction

Other deals

A magnetic rod is the basic element of building grate separators and magnetic filters. It is commonly used for cleaning flour, sugar, plastic granules, as well as oils and coolants. 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. Inside there is a stack of strong neodymium magnets arranged in a special configuration (magnetic circuit). Such construction ensures full resistance to corrosion, water, oils, and acids.
Metal contaminants are strongly attracted, so removing them with a bare hand or glove can be difficult. The most effective home method is using adhesive tape, which we wrap around the dirt and peel off. In industry, cover tubes (so-called Easy Clean system) are used, from which the magnetic insert slides out.
Magnetic induction measured in Gauss (Gs) determines the density of magnetic flux on the rod surface. 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. You can choose a mounting method consistent with your technical design. Contact us for a quote on a non-standard dimension.

Pros and cons of Nd2Fe14B magnets.

Advantages

In addition to their pulling strength, neodymium magnets provide the following advantages:
  • They have constant strength, and over around 10 years their attraction force decreases symbolically – ~1% (in testing),
  • They do not lose their magnetic properties even under strong external field,
  • The use of an aesthetic finish of noble metals (nickel, gold, silver) causes the element to have aesthetics,
  • The surface of neodymium magnets generates a concentrated magnetic field – this is one of their assets,
  • Neodymium magnets are characterized by very high magnetic induction on the magnet surface and can function (depending on the form) even at a temperature of 230°C or more...
  • Possibility of accurate modeling as well as optimizing to complex requirements,
  • Significant place in modern industrial fields – they are commonly used in data components, brushless drives, medical equipment, and other advanced devices.
  • Thanks to efficiency per cm³, small magnets offer high operating force, in miniature format,

Weaknesses

Disadvantages of neodymium magnets:
  • To avoid cracks upon strong impacts, we suggest using special steel housings. Such a solution protects the magnet and simultaneously improves its durability.
  • Neodymium magnets lose strength 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
  • Magnets exposed to a humid environment can corrode. Therefore during using outdoors, we suggest using water-impermeable magnets made of rubber, plastic or other material protecting against moisture
  • Limited possibility of making threads in the magnet and complex shapes - preferred is casing - magnetic holder.
  • Possible danger related to microscopic parts of magnets pose a threat, when accidentally swallowed, which is particularly important in the aspect of protecting the youngest. Furthermore, small components of these devices can be problematic in diagnostics medical when they are in the body.
  • Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications

Pull force analysis

Maximum lifting force for a neodymium magnet – what affects it?

The lifting capacity listed is a result of laboratory testing performed under standard conditions:
  • on a block made of mild steel, optimally conducting the magnetic flux
  • whose thickness is min. 10 mm
  • with a surface free of scratches
  • without any clearance between the magnet and steel
  • during pulling in a direction perpendicular to the plane
  • at standard ambient temperature

Practical aspects of lifting capacity – factors

Holding efficiency impacted by specific conditions, including (from priority):
  • Clearance – existence of any layer (paint, tape, air) interrupts the magnetic circuit, which reduces power rapidly (even by 50% at 0.5 mm).
  • Loading method – catalog parameter refers to detachment vertically. When attempting to slide, the magnet holds much less (typically approx. 20-30% of nominal force).
  • Metal thickness – thin material does not allow full use of the magnet. Magnetic flux penetrates through instead of generating force.
  • Plate material – low-carbon steel attracts best. Higher carbon content lower magnetic permeability and holding force.
  • Surface structure – the more even the surface, the larger the contact zone and higher the lifting capacity. Roughness acts like micro-gaps.
  • Thermal factor – hot environment reduces magnetic field. Exceeding the limit temperature can permanently demagnetize the magnet.

Lifting capacity was assessed with the use of a smooth steel plate of optimal thickness (min. 20 mm), under perpendicular detachment force, whereas under attempts to slide the magnet the load capacity is reduced by as much as 5 times. Moreover, even a slight gap between the magnet’s surface and the plate reduces the lifting capacity.

H&S for magnets
Choking Hazard

Adult use only. Tiny parts pose a choking risk, leading to intestinal necrosis. Keep away from children and animals.

Thermal limits

Do not overheat. Neodymium magnets are susceptible to heat. If you require operation above 80°C, ask us about HT versions (H, SH, UH).

Warning for heart patients

Warning for patients: Powerful magnets affect electronics. Maintain at least 30 cm distance or request help to handle the magnets.

GPS and phone interference

Navigation devices and smartphones are extremely sensitive to magnetism. Direct contact with a powerful NdFeB magnet can permanently damage the internal compass in your phone.

Pinching danger

Large magnets can smash fingers in a fraction of a second. Under no circumstances place your hand between two attracting surfaces.

Magnet fragility

Beware of splinters. Magnets can fracture upon uncontrolled impact, ejecting shards into the air. Eye protection is mandatory.

Allergy Warning

Nickel alert: The Ni-Cu-Ni coating consists of nickel. If redness happens, immediately stop working with magnets and use protective gear.

Do not drill into magnets

Mechanical processing of neodymium magnets carries a risk of fire hazard. Magnetic powder oxidizes rapidly with oxygen and is hard to extinguish.

Powerful field

Before use, read the rules. Sudden snapping can break the magnet or hurt your hand. Think ahead.

Electronic devices

Very strong magnetic fields can corrupt files on payment cards, hard drives, and storage devices. Maintain a gap of min. 10 cm.

Danger! More info about risks in the article: Safety of working with magnets.