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SM 32x425 [2xM8] / N52 - magnetic separator

magnetic separator

Catalog no 130464

GTIN/EAN: 5906301813354

Diameter Ø

32 mm [±1 mm]

Height

425 mm [±1 mm]

Weight

2353 g

Magnetic Flux

~ 10 000 Gauss [±5%]

1463.70 with VAT / pcs + price for transport

1190.00 ZŁ net + 23% VAT / pcs

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Technical details - SM 32x425 [2xM8] / N52 - magnetic separator

Specification / characteristics - SM 32x425 [2xM8] / N52 - magnetic separator

properties
properties values
Cat. no. 130464
GTIN/EAN 5906301813354
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 425 mm [±1 mm]
Weight 2353 g
Material Type Stainless steel AISI 304 / A2
Magnetic Flux ~ 10 000 Gauss [±5%]
Size/Mount Quantity 2xM8
Polarity circumferential - 16 poles
Casing Tube Thickness 1 mm
Manufacturing Tolerance ±1 mm

Magnetic properties of material N52

Specification / characteristics SM 32x425 [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 32x425 [2xM8] / N52

Parameter Value Description / Unit
Diameter (Ø) 32 mm
Total length 425 mm (L)
Active length 389 mm
Section count 16 modules
Dead zone 36 mm (2x 18mm starter)
Weight (est.) ~2598 g
Active area 391 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 (16 sections)

Chart 3: Temperature performance

Technical and environmental data
Material specification
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: 130464-2026
Measurement Calculator
Pulling force

Magnetic Field

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. 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 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.
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.
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. We offer various tip options: threaded holes (e.g., M8, M10), protruding screws, flat pivots, mills, or handles. We ensure fast realization of special orders and technical advice.

Strengths as well as weaknesses of rare earth magnets.

Advantages

Besides their exceptional strength, neodymium magnets offer the following advantages:
  • They do not lose power, even over approximately 10 years – the decrease in power is only ~1% (according to tests),
  • They possess excellent resistance to magnetism drop when exposed to external fields,
  • The use of an shiny coating of noble metals (nickel, gold, silver) causes the element to be more visually attractive,
  • Magnets have excellent magnetic induction on the surface,
  • Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their shape) at temperatures up to 230°C and above...
  • Thanks to freedom in constructing and the ability to modify to client solutions,
  • Wide application in innovative solutions – they are commonly used in computer drives, electric drive systems, medical equipment, as well as modern systems.
  • Compactness – despite small sizes they generate large force, making them ideal for precision applications

Disadvantages

What to avoid - cons of neodymium magnets: application proposals
  • To avoid cracks under impact, we recommend using special steel housings. Such a solution protects the magnet and simultaneously increases its durability.
  • When exposed to high temperature, neodymium magnets suffer a drop in force. Often, when the temperature exceeds 80°C, their power decreases (depending on the size, as well as shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
  • They rust in a humid environment - during use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
  • We suggest a housing - magnetic mount, due to difficulties in creating threads inside the magnet and complex shapes.
  • Health risk to health – tiny shards of magnets can be dangerous, when accidentally swallowed, which is particularly important in the context of child safety. Furthermore, small elements of these products are able to be problematic in diagnostics medical when they are in the body.
  • With large orders the cost of neodymium magnets is a challenge,

Lifting parameters

Detachment force of the magnet in optimal conditionswhat it depends on?

Information about lifting capacity was defined for optimal configuration, taking into account:
  • using a base made of mild steel, serving as a magnetic yoke
  • with a thickness minimum 10 mm
  • characterized by smoothness
  • with zero gap (without coatings)
  • under axial force vector (90-degree angle)
  • at standard ambient temperature

Impact of factors on magnetic holding capacity in practice

It is worth knowing that the working load will differ depending on the following factors, in order of importance:
  • Gap between surfaces – every millimeter of separation (caused e.g. by varnish or unevenness) significantly weakens the magnet efficiency, often by half at just 0.5 mm.
  • Pull-off angle – remember that the magnet holds strongest perpendicularly. Under shear forces, the capacity drops significantly, often to levels of 20-30% of the maximum value.
  • Metal thickness – thin material does not allow full use of the magnet. Part of the magnetic field passes through the material instead of converting into lifting capacity.
  • Steel type – low-carbon steel attracts best. Higher carbon content reduce magnetic permeability and lifting capacity.
  • Surface condition – ground elements guarantee perfect abutment, which increases force. Uneven metal reduce efficiency.
  • Thermal factor – hot environment weakens magnetic field. Too high temperature can permanently demagnetize the magnet.

Lifting capacity was assessed using a steel plate with a smooth surface of optimal thickness (min. 20 mm), under vertically applied force, whereas under shearing force the load capacity is reduced by as much as fivefold. Moreover, even a small distance between the magnet and the plate lowers the load capacity.

Precautions when working with NdFeB magnets
Pacemakers

People with a heart stimulator should keep an large gap from magnets. The magnetic field can stop the functioning of the implant.

GPS Danger

Note: neodymium magnets produce a field that confuses sensitive sensors. Keep a separation from your mobile, device, and GPS.

Fragile material

Despite the nickel coating, neodymium is delicate and not impact-resistant. Avoid impacts, as the magnet may crumble into hazardous fragments.

Dust explosion hazard

Dust generated during grinding of magnets is combustible. Avoid drilling into magnets unless you are an expert.

Respect the power

Before use, check safety instructions. Uncontrolled attraction can break the magnet or injure your hand. Be predictive.

No play value

NdFeB magnets are not toys. Accidental ingestion of several magnets may result in them connecting inside the digestive tract, which poses a severe health hazard and requires urgent medical intervention.

Sensitization to coating

It is widely known that the nickel plating (the usual finish) is a common allergen. If your skin reacts to metals, refrain from direct skin contact and opt for encased magnets.

Keep away from computers

Powerful magnetic fields can erase data on credit cards, hard drives, and storage devices. Stay away of at least 10 cm.

Physical harm

Danger of trauma: The pulling power is so immense that it can result in blood blisters, pinching, and broken bones. Use thick gloves.

Thermal limits

Watch the temperature. Exposing the magnet to high heat will destroy its magnetic structure and strength.

Danger! Looking for details? Read our article: Why are neodymium magnets dangerous?