← previous
next →
Product available Ships today (order by 14:00) CO2 GPSR PPWR REACH

SM 32x150 [2xM8] / N52 - magnetic separator

magnetic separator

Catalog no 130358

GTIN/EAN: 5906301813064

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

How we measure these parameters — certificates and measurements

check technical specifications »

570.00 zł net / pcs

701.10 zł with VAT (23% VAT) / pcs

price for transport

bulk discounts:

Need more?
Quantity
Net
Gross
price from 1 pcs
570.00 zł
701.10 zł
price from 5 pcs
541.50 zł
666.05 zł
price from 10 pcs
513.00 zł
630.99 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.

Order by 14:00 and we’ll ship today!

Physical properties - SM 32x150 [2xM8] / N52 - magnetic separator

Specification / characteristics - SM 32x150 [2xM8] / N52 - magnetic separator

properties
properties values
Cat. no. 130358
GTIN/EAN 5906301813064
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 150 mm [±1 mm]
Weight 830 g
Material Type Stainless steel AISI 304 / A2
Magnetic Flux ~ 10 000 Gauss [±5%]
Size/Mount Quantity 2xM8
Polarity circumferential - 5 poles
Casing Tube Thickness 1 mm
Manufacturing Tolerance ±1 mm

Magnetic properties of material N52

Specification / characteristics SM 32x150 [2xM8] / N52 - magnetic separator
properties values units
Remanence Br ? 14.2-14.7 kGs
Remanence Br ? 1420-1470 mT
Coercivity bHc ? 10.8-12.5 kOe
Coercivity bHc ? 860-995 kA/m
Intrinsic coercivity iHc ≥ 12 kOe
Intrinsic coercivity iHc ≥ 955 kA/m
Energy product BHmax ? 48-53 BH max MGOe
Energy product BHmax ? 380-422 BH max KJ/m
Maximum working 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 32x150 [2xM8] / N52

Parameter Value Description / Unit
Diameter (Ø) 32 mm
Total length 150 mm (L)
Active length 114 mm
Section count 4 modules
Dead zone 36 mm (2x 18mm starter)
Weight (est.) ~917 g
Active area 115 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 (4 sections)

Simulation: 4 magnetic modules (pitch 23 mm).

Chart 3: Temperature performance

Technical specification and ecology

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: 130358-2026
Measurement Calculator

Magnet pull force

Magnetic Field

Just populate a single box, and the calculator fill in the rest instantly.

See also deals

MW 10x3 / N38 - cylindrical magnet
Product available Ships today (order by 14:00)

MW 10x3 / N38 - cylindrical magnet

0.923 zł brutto / pcs
MPL 20x20x20 / N38 - lamellar magnet
Product available Ships today (order by 14:00)

MPL 20x20x20 / N38 - lamellar magnet

33.21 zł brutto / pcs
MW 2x4 / N38 - cylindrical magnet
Product available Ships today (order by 14:00)

MW 2x4 / N38 - cylindrical magnet

0.209 zł brutto / pcs
ZM XMAG2 210 elementów - magnetic toy
Product available Ships today (order by 14:00)

ZM XMAG2 210 elementów - magnetic toy

86.10 zł brutto / pcs
A magnetic rod is the basic element of building grate separators and magnetic filters. 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 construction relies on a sealed, welded stainless steel housing, polished smooth. 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.
Metal contaminants are strongly attracted, so removing them with a bare hand or glove can be difficult. You can use compressed air or special non-magnetic strippers (rings). In industry, cover tubes (so-called Easy Clean system) are used, from which the magnetic insert slides out.
The Gauss value tells us how effectively and deeply the magnet will catch contaminants. The economical version (8kGs) handles large pieces of metal perfectly. For the food and precision industry, we recommend the highest induction parameters.
We fulfill individual orders for bars perfectly matched to your machine or separator. You can choose a mounting method consistent with your technical design. Contact us for a quote on a non-standard dimension.

Advantages and disadvantages of neodymium magnets.

Strengths

Besides their durability, neodymium magnets are valued for these benefits:
  • Their magnetic field is durable, and after approximately 10 years it decreases only by ~1% (theoretically),
  • They are noted for resistance to demagnetization induced by external disturbances,
  • Thanks to the smooth finish, the layer of nickel, gold-plated, or silver-plated gives an elegant appearance,
  • They are known for high magnetic induction at the operating surface, which affects their effectiveness,
  • Neodymium magnets are characterized by very high magnetic induction on the magnet surface and are able to act (depending on the shape) even at a temperature of 230°C or more...
  • Considering the option of flexible shaping and customization to individualized needs, neodymium magnets can be manufactured in a variety of geometric configurations, which makes them more universal,
  • Universal use in modern technologies – they are utilized in HDD drives, electric motors, medical equipment, also technologically advanced constructions.
  • Thanks to concentrated force, small magnets offer high operating force, with minimal size,

Weaknesses

Disadvantages of neodymium magnets:
  • At strong impacts they can break, therefore we advise placing them in steel cases. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
  • Neodymium magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop of power (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 start to rust. For applications outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which prevent oxidation and corrosion.
  • Limited possibility of making threads in the magnet and complex shapes - preferred is a housing - magnetic holder.
  • Health risk related to microscopic parts of magnets can be dangerous, in case of ingestion, which gains importance in the aspect of protecting the youngest. Additionally, small elements of these magnets can disrupt the diagnostic process medical in case of swallowing.
  • High unit price – neodymium magnets cost more than other types of magnets (e.g. ferrite), which hinders application in large quantities

Lifting parameters

Best holding force of the magnet in ideal parameters – what it depends on?

The load parameter shown refers to the maximum value, recorded under laboratory conditions, namely:
  • using a plate made of mild steel, acting as a ideal flux conductor
  • with a cross-section of at least 10 mm
  • with a plane free of scratches
  • without any air gap between the magnet and steel
  • for force applied at a right angle (pull-off, not shear)
  • at conditions approx. 20°C

Determinants of practical lifting force of a magnet

It is worth knowing that the working load will differ depending on the following factors, starting with the most relevant:
  • Gap between magnet and steel – even a fraction of a millimeter of separation (caused e.g. by varnish or dirt) drastically reduces the magnet efficiency, often by half at just 0.5 mm.
  • Force direction – catalog parameter refers to pulling vertically. When attempting to slide, the magnet holds significantly lower power (often approx. 20-30% of nominal force).
  • Wall thickness – the thinner the sheet, the weaker the hold. Magnetic flux passes through the material instead of generating force.
  • Chemical composition of the base – low-carbon steel gives the best results. Alloy steels decrease magnetic properties and holding force.
  • Surface quality – the smoother and more polished the plate, the larger the contact zone and stronger the hold. Unevenness creates an air distance.
  • Temperature – temperature increase results in weakening of induction. Check the thermal limit for a given model.

Lifting capacity was measured by applying a steel plate with a smooth surface of optimal thickness (min. 20 mm), under vertically applied force, whereas under shearing force the lifting capacity is smaller. Additionally, even a slight gap between the magnet and the plate lowers the load capacity.

Precautions when working with neodymium magnets
Swallowing risk

Neodymium magnets are not intended for children. Accidental ingestion of a few magnets may result in them attracting across intestines, which poses a critical condition and necessitates urgent medical intervention.

Handling guide

Before starting, check safety instructions. Uncontrolled attraction can destroy the magnet or hurt your hand. Think ahead.

Nickel allergy

Studies show that the nickel plating (standard magnet coating) is a common allergen. If you have an allergy, avoid direct skin contact or select versions in plastic housing.

Danger to pacemakers

Life threat: Neodymium magnets can deactivate pacemakers and defibrillators. Stay away if you have medical devices.

Protect data

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

Protective goggles

Despite metallic appearance, the material is delicate and not impact-resistant. Avoid impacts, as the magnet may crumble into hazardous fragments.

Combustion hazard

Combustion risk: Rare earth powder is explosive. Avoid machining magnets without safety gear as this may cause fire.

Magnetic interference

Navigation devices and mobile phones are highly susceptible to magnetism. Close proximity with a strong magnet can decalibrate the internal compass in your phone.

Do not overheat magnets

Monitor thermal conditions. Heating the magnet to high heat will destroy its properties and strength.

Crushing risk

Large magnets can crush fingers instantly. Do not place your hand between two attracting surfaces.

Caution! Looking for details? Read our article: Are neodymium magnets dangerous?