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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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Product card - 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%
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: 130466-2026
Measurement Calculator
Pulling force

Magnetic Induction

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 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. We recommend sticking packing tape to the cluster of filings and tearing it off together with the contaminants. For easier operation, it is worth considering ordering a rod in a version with a cleaning sleeve.
The more Gauss, the smaller and more weakly magnetic particles will be effectively caught. The economical version (8kGs) handles large pieces of metal perfectly. High induction is necessary when contaminants are microscopic or weakly magnetic.
Yes, as a manufacturer, we make rods of any length and diameter (standard is dia 25mm and 32mm). 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 neodymium magnets.

Strengths

In addition to their long-term stability, neodymium magnets provide the following advantages:
  • Their power is maintained, and after around ten years it decreases only by ~1% (theoretically),
  • Magnets very well protect themselves against demagnetization caused by external fields,
  • In other words, due to the metallic layer of gold, the element becomes visually attractive,
  • Magnetic induction on the surface of the magnet remains very high,
  • Through (appropriate) combination of ingredients, they can achieve high thermal strength, enabling functioning at temperatures reaching 230°C and above...
  • In view of the potential of accurate shaping and customization to individualized requirements, neodymium magnets can be created in a wide range of forms and dimensions, which amplifies use scope,
  • Huge importance in innovative solutions – they find application in HDD drives, motor assemblies, medical devices, and multitasking production systems.
  • Compactness – despite small sizes they generate large force, making them ideal for precision applications

Limitations

What to avoid - cons of neodymium magnets: application proposals
  • At strong impacts they can crack, therefore we advise placing them in steel cases. A metal housing provides additional protection against damage and increases the magnet's durability.
  • We warn that neodymium magnets can reduce their strength at high temperatures. To prevent this, we advise our specialized [AH] magnets, which work effectively even at 230°C.
  • When exposed to humidity, magnets usually rust. For applications outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which secure oxidation and corrosion.
  • Limited ability of making threads in the magnet and complicated shapes - recommended is cover - magnet mounting.
  • Possible danger resulting from small fragments of magnets are risky, if swallowed, which becomes key in the context of child safety. Furthermore, small components of these products are able to complicate diagnosis medical when they are in the body.
  • Due to complex production process, their price exceeds standard values,

Pull force analysis

Maximum lifting force for a neodymium magnet – what it depends on?

The load parameter shown refers to the limit force, recorded under ideal test conditions, specifically:
  • with the contact of a sheet made of special test steel, guaranteeing full magnetic saturation
  • with a thickness no less than 10 mm
  • with a plane free of scratches
  • under conditions of gap-free contact (surface-to-surface)
  • for force acting at a right angle (in the magnet axis)
  • at conditions approx. 20°C

Impact of factors on magnetic holding capacity in practice

In real-world applications, the real power depends on several key aspects, ranked from most significant:
  • Space between surfaces – even a fraction of a millimeter of distance (caused e.g. by veneer or unevenness) diminishes the pulling force, often by half at just 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.
  • Wall thickness – the thinner the sheet, the weaker the hold. Part of the magnetic field penetrates through instead of converting into lifting capacity.
  • Chemical composition of the base – low-carbon steel attracts best. Alloy steels lower magnetic properties and lifting capacity.
  • Smoothness – full contact is possible only on smooth steel. Rough texture reduce the real contact area, reducing force.
  • Thermal environment – temperature increase results in weakening of induction. Check the maximum operating temperature for a given model.

Holding force was checked on a smooth steel plate of 20 mm thickness, when the force acted perpendicularly, however under parallel forces the holding force is lower. Moreover, even a small distance between the magnet and the plate decreases the lifting capacity.

Safety rules for work with NdFeB magnets
Do not give to children

Strictly keep magnets away from children. Ingestion danger is significant, and the effects of magnets clamping inside the body are fatal.

Implant safety

Health Alert: Strong magnets can turn off pacemakers and defibrillators. Stay away if you have medical devices.

Avoid contact if allergic

It is widely known that nickel (the usual finish) is a common allergen. For allergy sufferers, avoid touching magnets with bare hands and select encased magnets.

Magnets are brittle

Neodymium magnets are ceramic materials, meaning they are fragile like glass. Impact of two magnets will cause them breaking into small pieces.

Combustion hazard

Fire hazard: Rare earth powder is highly flammable. Avoid machining magnets without safety gear as this may cause fire.

Threat to navigation

Navigation devices and smartphones are extremely sensitive to magnetism. Close proximity with a powerful NdFeB magnet can ruin the internal compass in your phone.

Caution required

Use magnets consciously. Their powerful strength can shock even experienced users. Be vigilant and do not underestimate their force.

Threat to electronics

Device Safety: Strong magnets can ruin data carriers and sensitive devices (pacemakers, hearing aids, timepieces).

Permanent damage

Control the heat. Exposing the magnet to high heat will ruin its magnetic structure and strength.

Crushing risk

Danger of trauma: The attraction force is so immense that it can cause blood blisters, pinching, and broken bones. Protective gloves are recommended.

Warning! More info about hazards in the article: Magnet Safety Guide.
Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98