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SM 32x450 [2xM8] / N52 - magnetic separator

magnetic separator

Catalog no 130465

GTIN/EAN: 5906301813361

Diameter Ø
32 mm [±1 mm]
Height
450 mm [±1 mm]
Weight
2490 g
Magnetic Flux
~ 10 000 Gauss [±5%]

check technical specifications »

1150.00 zł net / pcs

1414.50 zł with VAT (23% VAT) / pcs

price for transport

bulk discounts:

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Net
Gross
price from 1 pcs
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1414.50 zł
price from 5 pcs
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1273.05 zł

Frequently asked questions

Which rod should I choose for fine contamination?
For particles below 0.5 mm — a Ø32 mm rod in grade N52, with surface induction of about 10,000 Gs. A Ø25 rod in grade N42 gives about 6,500 Gs and is chosen for contamination above 1 mm: bolts, washers, pieces of wire.
Which rod pitch should I choose?
The narrow pitch, 40 mm centre to centre, for fine free-flowing fractions — it gives denser coverage of the cross-section. The wide pitch, 50 mm, for granulates and for damp, greasy or sticky materials, where a narrow pitch risks the material bridging above the rods.
Why does efficiency drop after a few weeks of operation?
Almost always because the separator has not been cleaned. The layer of captured particles shields the field, and further particles settle on that layer rather than on the rod surface, where the gradient is far stronger. The magnets themselves do not weaken at that rate.

Guides from the knowledge base

Want to talk magnets?

Call us now +48 888 99 98 98 alternatively let us know using contact form the contact section.
Specifications and structure of a neodymium magnet can be estimated using our power calculator.

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Technical data - SM 32x450 [2xM8] / N52 - magnetic separator

Specification / characteristics - SM 32x450 [2xM8] / N52 - magnetic separator

properties
properties values
Cat. no. 130465
GTIN/EAN 5906301813361
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 450 mm [±1 mm]
Weight 2490 g
Material Type Stainless steel AISI 304 / A2
Magnetic Flux ~ 10 000 Gauss [±5%]
Size/Mount Quantity 2xM8
Polarity circumferential - 17 poles
Casing Tube Thickness 1 mm
Manufacturing Tolerance ±1 mm

Magnetic properties of material N52

Specification / characteristics SM 32x450 [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 310 °C
Curie Temperature TF 590 °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 32x450 [2xM8] / N52

Parameter Value Description / Unit
Diameter (Ø) 32 mm
Total length 450 mm (L)
Active length 414 mm
Section count 18 modules
Dead zone 36 mm (2x 18mm starter)
Weight (est.) ~2751 g
Active area 416 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)
Max T = 80°C. Construction data for M8/M10 thread series.

Chart 2: Field profile (18 sections)

Simulation: 18 magnetic modules (pitch 23 mm).

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%

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: 130465-2026
Measurement Calculator

Magnet pull force

Magnetic Induction

Input a figure in a single field to see the conversion for the other fields immediately.

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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. 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 center is filled with NdFeB magnets and pole pieces, arranged to maximize the field on the tube surface. Such construction ensures full resistance to corrosion, water, oils, and acids.
Due to the high power of the magnet, direct removal of filings can be troublesome and time-consuming. The most effective home method is using adhesive tape, which we wrap around the dirt and peel off. 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. For basic machine protection against pieces of iron, standard power is sufficient. 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). The rod end is strictly adapted to the fastening system in your device. Contact us for a quote on a non-standard dimension.

Strengths and weaknesses of rare earth magnets.

Advantages

Besides their exceptional field intensity, neodymium magnets offer the following advantages:
  • Their power remains stable, and after around 10 years it drops only by ~1% (according to research),
  • They do not lose their magnetic properties even under close interference source,
  • In other words, due to the aesthetic layer of gold, the element gains visual value,
  • Magnets exhibit impressive magnetic induction on the surface,
  • Through (adequate) combination of ingredients, they can achieve high thermal strength, enabling action at temperatures approaching 230°C and above...
  • Possibility of detailed shaping as well as adjusting to complex needs,
  • Universal use in electronics industry – they are utilized in computer drives, electric motors, precision medical tools, as well as other advanced devices.
  • Relatively small size with high pulling force – neodymium magnets offer high power in tiny dimensions, which enables their usage in compact constructions

Weaknesses

Characteristics of disadvantages of neodymium magnets and ways of using them
  • At strong impacts they can crack, therefore we advise placing them in special holders. A metal housing provides additional protection against damage and increases the magnet's durability.
  • We warn that neodymium magnets can lose their power at high temperatures. To prevent this, we recommend our specialized [AH] magnets, which work effectively even at 230°C.
  • They rust in a humid environment - during use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
  • We recommend a housing - magnetic holder, due to difficulties in creating nuts inside the magnet and complicated forms.
  • Potential hazard related to microscopic parts of magnets are risky, in case of ingestion, which gains importance in the aspect of protecting the youngest. Additionally, small elements of these devices can complicate diagnosis medical when they are in the body.
  • With budget limitations the cost of neodymium magnets is a challenge,

Pull force analysis

Maximum holding power of the magnet – what it depends on?

The load parameter shown refers to the peak performance, obtained under ideal test conditions, meaning:
  • on a base made of structural steel, effectively closing the magnetic flux
  • whose thickness reaches at least 10 mm
  • with an ideally smooth touching surface
  • with total lack of distance (no coatings)
  • for force applied at a right angle (in the magnet axis)
  • in neutral thermal conditions

Lifting capacity in real conditions – factors

In practice, the real power is determined by several key aspects, listed from crucial:
  • Clearance – existence of any layer (rust, tape, gap) interrupts the magnetic circuit, which reduces capacity steeply (even by 50% at 0.5 mm).
  • Loading method – declared lifting capacity refers to pulling vertically. When attempting to slide, the magnet holds significantly lower power (often approx. 20-30% of nominal force).
  • Plate thickness – insufficiently thick steel does not accept the full field, causing part of the flux to be escaped into the air.
  • Material composition – different alloys reacts the same. High carbon content weaken the attraction effect.
  • Plate texture – smooth surfaces ensure maximum contact, which improves force. Rough surfaces weaken the grip.
  • Thermal environment – temperature increase causes a temporary drop of induction. Check the maximum operating temperature for a given model.

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

Warnings
Threat to electronics

Do not bring magnets near a wallet, computer, or screen. The magnetism can irreversibly ruin these devices and wipe information from cards.

Permanent damage

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

Avoid contact if allergic

Certain individuals have a contact allergy to Ni, which is the common plating for NdFeB magnets. Prolonged contact can result in dermatitis. It is best to wear protective gloves.

Risk of cracking

Neodymium magnets are sintered ceramics, meaning they are very brittle. Collision of two magnets leads to them breaking into small pieces.

Fire warning

Combustion risk: Neodymium dust is highly flammable. Avoid machining magnets in home conditions as this risks ignition.

Safe operation

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

Danger to the youngest

Absolutely keep magnets away from children. Risk of swallowing is significant, and the effects of magnets connecting inside the body are tragic.

Pacemakers

Health Alert: Neodymium magnets can deactivate heart devices and defibrillators. Stay away if you have electronic implants.

GPS Danger

Note: rare earth magnets produce a field that confuses sensitive sensors. Maintain a separation from your phone, tablet, and navigation systems.

Hand protection

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

Caution! Want to know more? Read our article: Are neodymium magnets dangerous?